TC7106ILW [MICROCHIP]
IC,A/D CONVERTER,SINGLE,3 1/2-DIGIT,CMOS,LDCC,44PIN;型号: | TC7106ILW |
厂家: | MICROCHIP |
描述: | IC,A/D CONVERTER,SINGLE,3 1/2-DIGIT,CMOS,LDCC,44PIN |
文件: | 总34页 (文件大小:482K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TC7106/A/TC7107/A
3-1/2 Digit Analog-to-Digital Converters
Features:
General Description:
• Internal Reference with Low Temperature Drift:
- TC7106/TC7107: 80 ppm/°C (Typical)
- TC7106A/TC7107A: 20 ppm/°C (Typical)
The TC7106A and TC7107A 3-1/2 digit direct display
drive Analog-to-Digital Converters allow existing
TC7106/TC7107 based systems to be upgraded. Each
device has a precision reference with a 20 ppm/°C
maximum temperature coefficient. This represents a 4
to 7 times improvement over similar 3-1/2 digit
converters. Existing TC7106 and TC7107 based
systems may be upgraded without changing external
passive component values. The TC7107A drives
common anode light emitting diode (LED) displays
directly with 8 mA per segment. A low cost, high
resolution indicating meter requires only a display, four
resistors, and four capacitors. The TC7106A low-power
drain and 9V battery operation make it suitable for por-
table applications.
• Drives LCD (TC7106) or LED (TC7107)
Display Directly
• Zero Reading with Zero Input
• Low Noise for Stable Display
• Auto-Zero Cycle Eliminates Need for Zero
Adjustment
• True Polarity Indication for Precision Null
Applications
• Convenient 9V Battery Operation (TC7106A)
• High-Impedance CMOS Differential Inputs: 1012Ω
• Differential Reference Inputs Simplify Ratiometric
Measurements
The TC7106A/TC7107A reduces linearity error to less
than 1 count. Rollover error – the difference in readings
for equal magnitude, but opposite polarity input signals,
is below ±1 count. High-impedance differential inputs
• Low-Power Operation: 10 mW
offer 1 pA leakage current and
a
1012Ω input
Applications:
impedance. The differential reference input allows
ratiometric measurements for ohms or bridge
transducer measurements. The 15 µVP–P noise
performance ensures a “rock solid” reading. The auto-
zero cycle ensures a zero display reading with a zero
volts input.
• Thermometry
• Bridge Readouts: Strain Gauges, Load Cells, Null
Detectors
• Digital Meters: Voltage/Current/Ohms/Power, pH
• Digital Scales, Process Monitors
• Portable Instrumentation
© 2008 Microchip Technology Inc.
DS21455D-page 1
TC7106/A/TC7107/A
Package Type
40-Pin PDIP
44-Pin PLCC
V+
1
2
40 OSC1
Normal Pin
Configuration
D
1
39
38
OSC2
OSC3
6
5
4
3
2
1
44 43 42 41 40
C
1
3
B
1
4
37 TEST
7
REF LO
F
G
E
39
38
37
A
1
1
1
1
5
36
35
1s
'
V
V
+
-
REF
F
1
8
C
6
REF
REF
G
1
34 CREF
-
7
9
C
REF
E
1
33
C
-
8
REF
D
C
10
11
12
13
14
15
16
17
36 COMMON
2
2
TC7106ACPL
TC7107AIPL
9
32 ANALOG
COMMON
31
D
C
2
2
2
2
IN HI
NC
35
34
33
10
11
12
13
14
15
16
17
18
19
20
V
+
-
IN
TC7106ACLW
TC7107ACLW
B
A
30 V
IN
10s
'
B
IN LO
29 C
AZ
2
2
2
2
F
E
28
27
26
25
24
V
V
2
A
F
E
32 A/Z
31 BUFF
30 INT
29 V-
BUFF
INT
2
D
V-
G
3
B
3
2
100s
'
D
2
F
E
C
3
3
3
100s
'
23 A
22
3
AB
18 19 20 21 22 23 24 25 26 27 28
1000s
'
G
4
3
21
POL
(Minus Sign)
BP/GND
(7106A/7107A)
44-Pin MQFP
44 43 42 41 40 39 38 37 36 35 34
1
2
NC
NC
NC
33
32
31
30
29
28
27
G
2
TEST
OSC3
NC
3
C
3
4
A
3
5
G
3
TC7106ACKW
TC7107ACKW
OSC2
OSC1
V+
6
BP/GND
POL
7
8
26 AB
4
D
C
B
9
25
24
23
E
1
1
1
3
3
10
11
F
B
3
12 13 14 15 16 17 18 19 20 21 22
DS21455D-page 2
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
Typical Application
0.1 µF
33
LCD Display (TC7106/A) or
Common Node with LED
Display (TC7107/A)
34
C
+
C
-
REF
REF
1 MΩ
31
Segment
Drive
2 - 19
+
V
+
IN
22 - 25
Analog
0.01 µF
Input
20
30
32
POL
V
-
IN
–
Minus Sign
Backplane
Drive
21
1
BP
V+
ANALOG
COMMON
TC7106/A
24 kΩ
1 kΩ
TC7107/A
28
+
V
BUFF
9V
V
47 kΩ
REF
36
+
V
0.47 µF
29
REF
C
V
AZ
100 mV
35
26
V
-
REF
0.22 µF
27
INT
V-
OSC2 OSC3 OSC1
To Analog
Common (Pin 32)
C
39
38
40
OSC
R
100 pF
3 Conversions/Sec
200 mV Full Scale
OSC
100 kΩ
© 2008 Microchip Technology Inc.
DS21455D-page 3
TC7106/A/TC7107/A
TC7107A
1.0
ELECTRICAL
CHARACTERISTICS
Supply Voltage (V+)..........................................................+6V
Supply Voltage (V-)............................................................-9V
Analog Input Voltage (either Input) (Note 1).............. V+ to V-
Absolute Maximum Ratings†
TC7106A
Reference Input Voltage (either Input)....................... V+ to V-
Clock Input.............................................................GND to V+
Package Power Dissipation (TA ≤ 70°C) (Note 2):
Supply Voltage (V+ to V-)..................................................15V
40-Pin PDIP......................................................1.23W
44-Pin PLCC ....................................................1.23W
44-Pin MQFP....................................................1.00W
Analog Input Voltage (either Input) (Note 1) .............. V+ to V-
Reference Input Voltage (either Input) ....................... V+ to V-
Clock Input ..............................................................Test to V+
Package Power Dissipation (TA ≤ 70°C) (Note 2):
Operating Temperature Range:
C (Commercial) Devices ....................... 0°C to +70°C
I (Industrial) Devices..........................-25°C to +85°C
40-Pin PDIP......................................................1.23W
44-Pin PLCC.....................................................1.23W
44-Pin MQFP....................................................1.00W
Storage Temperature Range.........................-65°C to +150°C
† Notice: Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. These are
stress ratings only and functional operation of the device at these or
any other conditions above those indicated in the operation sections of
the specifications is not implied. Exposure to Absolute Maximum Rat-
ing conditions for extended periods may affect device reliability.
Operating Temperature Range:
C (Commercial) Devices........................0°C to +70°C
I (Industrial) Devices..........................-25°C to +85°C
Storage Temperature Range.........................-65°C to +150°C
TC7106/A AND TC7107/A ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise noted, specifications apply to both the TC7106/TC7106A and TC7107/TC7107A at
TA = +25°C, fCLOCK = 48 kHz. Parts are tested in the circuit of the Typical Operating Circuit.
Parameter
Zero Input Reading
Symbol
ZIR
Min
Typ
Max
Unit
Test Conditions
-000.0
±000.0
+000.0
Digital VIN = 0.0V
Reading Full Scale = 200.0 mV
Ratiometric Reading
999
-1
999/1000
±0.2
1000
+1
Digital
Reading VREF = 100 mV
Counts IN- = + VIN+ ≅ 200 mV
VIN = VREF
Rollover Error (Difference in Reading for R/O
Equal Positive and Negative Reading
Near Full Scale)
V
Linearity (Maximum Deviation from Best
Straight Line Fit)
-1
—
—
±0.2
50
+1
—
—
Counts Full Scale = 200 mV or
Full Scale = 2.000V
Common Mode Rejection Ratio (Note 3) CMRR
µV/V
VCM = ±1V, VIN = 0V,
Full Scale = 200.0 mV
Noise (Peak to Peak Value not
Exceeded 95% of Time)
eN
IL
15
µV
VIN = 0V
Full Scale - 200.0 mV
Leakage Current at Input
Zero Reading Drift
—
—
1
10
1
pA
VIN = 0V
0.2
µV/°C VIN = 0V
“C” Device = 0°C to +70°C
IN = 0V
“I” Device = -25°C to +85°C
ppm/°C VIN = 199.0 mV,
“C” Device = 0°C to +70°C (Ext.
Ref = 0 ppm°C)
IN = 199.0 mV
—
—
1.0
1
2
5
µV/°C
V
Scale Factor Temperature Coefficient
TCSF
—
—
—
0.8
20
1.8
ppm/°C
mA
V
“I” Device = -25°C to +85°C
Supply Current (Does not include LED
Current For TC7107/A)
IDD
VIN = 0.8
Analog Common Voltage (with Respect VC
to Positive Supply)
2.7
3.05
3.35
V
25 kΩ Between Common and
Positive Supply
Note 1: Input voltages may exceed the supply voltages, provided the input current is limited to ±100 µA.
2: Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
3: Refer to “Differential Input” discussion.
4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is 20
times the conversion rate. Average DC component is less than 50 mV.
DS21455D-page 4
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
TC7106/A AND TC7107/A ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: Unless otherwise noted, specifications apply to both the TC7106/TC7106A and TC7107/TC7107A at
TA = +25°C, fCLOCK = 48 kHz. Parts are tested in the circuit of the Typical Operating Circuit.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
Temperature Coefficient of Analog
Common (with Respect to Positive
Supply)
VCTC
—
—
—
—
25 kΩ Between Common and
Positive Supply
7106/7/A
7106/7
20
80
50
—
ppm/°C 0°C ≤ TA ≤ +70°C
ppm/°C (“C” Commercial Temperature
Range Devices)
Temperature Coefficient of Analog
Common (with Respect to Positive
Supply)
VCTC
—
—
75
ppm/°C 0°C ≤ TA ≤ +70°C
(“I” Industrial Temperature
Range Devices)
TC7106A ONLY Peak to Peak
Segment Drive Voltage
VSD
VBD
4
4
5
5
6
6
V
V+ to V- = 9V
(Note 4)
TC7106A ONLY Peak to Peak
Backplane Drive Voltage
V
V+ to V- = 9V
(Note 4)
TC7107A ONLY Segment Sinking
Current (Except Pin 19)
5
8.0
16
—
—
mA
mA
V+ = 5.0V
Segment Voltage = 3V
TC7107A ONLY Segment Sinking
Current (Pin 19)
10
V+ = 5.0V
Segment Voltage = 3V
Note 1: Input voltages may exceed the supply voltages, provided the input current is limited to ±100 µA.
2: Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
3: Refer to “Differential Input” discussion.
4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is 20
times the conversion rate. Average DC component is less than 50 mV.
© 2008 Microchip Technology Inc.
DS21455D-page 5
TC7106/A/TC7107/A
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
Pin Number
Pin No.
(40-Pin PDIP) (40-Pin PDIP)
Symbol
Description
Normal
(Reversed
1
(40)
(39)
(38)
(37)
(36)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
(28)
(27)
(26)
(25)
(24)
(23)
(22)
(21)
(20)
(19)
(18)
(17)
(16)
(15)
(14)
V+
D1
C1
B1
Positive supply voltage.
2
Activates the D section of the units display.
Activates the C section of the units display.
Activates the B section of the units display.
Activates the A section of the units display.
Activates the F section of the units display.
Activates the G section of the units display.
Activates the E section of the units display.
Activates the D section of the tens display.
Activates the C section of the tens display.
Activates the B section of the tens display.
Activates the A section of the tens display.
Activates the F section of the tens display.
Activates the E section of the tens display.
Activates the D section of the hundreds display.
Activates the B section of the hundreds display.
Activates the F section of the hundreds display.
Activates the E section of the hundreds display.
Activates both halves of the 1 in the thousands display.
Activates the negative polarity display.
3
4
5
A1
6
F1
7
G1
E1
8
9
D2
C2
B2
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
A2
F2
E2
D3
B3
F3
E3
AB4
POL
BP/GND LCD Backplane drive output (TC7106A). Digital Ground (TC7107A).
G3
A3
Activates the G section of the hundreds display.
Activates the A section of the hundreds display.
Activates the C section of the hundreds display.
Activates the G section of the tens display.
Negative power supply voltage.
C3
G2
V-
VINT
Integrator output. Connection point for integration capacitor. See INTEGRATING
CAPACITOR section for more details.
28
29
(13)
(12)
VBUFF
CAZ
Integration resistor connection. Use a 47 kΩ resistor for a 200 mV full scale range
and a 47 kΩ resistor for 2V full scale range.
The size of the auto-zero capacitor influences system noise. Use a 0.47 µF capacitor
for 200 mV full scale, and a 0.047 µF capacitor for 2V full scale. See Section 7.1
“Auto-Zero Capacitor (CAZ)” on Auto-Zero Capacitor for more details.
30
31
32
(11)
(10)
(9)
VIN
VIN
-
The analog LOW input is connected to this pin.
+
The analog HIGH input signal is connected to this pin.
ANALOG This pin is primarily used to set the Analog Common mode voltage for battery
COMMON operation or in systems where the input signal is referenced to the power supply. It
also acts as a reference voltage source. See Section 8.3 “Analog Common (Pin
32)” on ANALOG COMMON for more details.
33
34
(8)
(7)
CREF
CREF
-
See Pin 34.
+
A 0.1 µF capacitor is used in most applications. If a large Common mode voltage
exists (for example, the VIN- pin is not at analog common), and a 200 mV scale is
used, a 1 µF capacitor is recommended and will hold the rollover error to 0.5 count.
35
(6)
VREF
-
See Pin 36.
DS21455D-page 6
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
TABLE 2-1:
PIN FUNCTION TABLE (CONTINUED)
Pin Number
Pin No.
(40-Pin PDIP) (40-Pin PDIP)
Symbol
Description
Normal
(Reversed
36
(5)
VREF
+
The analog input required to generate a full scale output (1999 counts). Place
100 mV between Pins 35 and 36 for 199.9 mV full scale. Place 1V between Pins 35
and 36 for 2V full scale. See paragraph on Reference Voltage.
37
(4)
TEST
Lamp test. When pulled HIGH (to V+) all segments will be turned on and the display
should read -1888. It may also be used as a negative supply for externally generated
decimal points. See paragraph under TEST for additional information.
38
39
40
(3)
(2)
(1)
OSC3
OSC2
OSC1
See Pin 40.
See Pin 40.
Pins 40, 39, 38 make up the oscillator section. For a 48 kHz clock (3 readings per
section), connect Pin 40 to the junction of a 100 kΩ resistor and a 100 pF capacitor.
The 100 kΩ resistor is tied to Pin 39 and the 100 pF capacitor is tied to Pin 38.
© 2008 Microchip Technology Inc.
DS21455D-page 7
TC7106/A/TC7107/A
For a constant VIN:
3.0
DETAILED DESCRIPTION
(All Pin designations refer to 40-Pin PDIP.)
EQUATION 3-2:
TRI
TSI
3.1
Dual Slope Conversion Principles
VIN = VR
The TC7106A and TC7107A are dual slope, integrating
Analog-to-Digital Converters. An understanding of the
dual slope conversion technique will aid in following the
detailed operation theory.
The dual slope converter accuracy is unrelated to the
integrating resistor and capacitor values as long as
they are stable during a measurement cycle. An
inherent benefit is noise immunity. Noise spikes are
integrated or averaged to zero during the integration
periods. Integrating ADCs are immune to the large
The conventional dual slope converter measurement
cycle has two distinct phases:
• Input Signal Integration
conversion
errors
that
plague
successive
• Reference Voltage Integration (De-integration)
approximation converters in high noise environments.
Interfering signals with frequency components at
multiples of the averaging period will be attenuated.
Integrating ADCs commonly operate with the signal
integration period set to a multiple of the 50/60Hz
power line period (see Figure 3-2).
The input signal being converted is integrated for a
fixed time period (TSI). Time is measured by counting
clock pulses. An opposite polarity constant reference
voltage is then integrated until the integrator output
voltage returns to zero. The reference integration time
is directly proportional to the input signal (TRI). See
Figure 3-1.
30
C
Analog
Input
Integrator
Signal
Comparator
–
20
–
+
+
+/–
Switch
Driver
10
Phase
Control
Polarity Control
REF
Voltage
Control
Logic
T = Measured Period
0
0.1/T
1/T
10/T
Counter
DISPLAY
Input Frequency
V
V
µ V
µ
IN
REF
1/2
V
REF
IN
FIGURE 3-2:
Normal Mode Rejection of
Dual Slope Converter.
Fixed Variable
Signal Reference
Integrate Integrate
Time Time
VFS
1
⎛
⎝
⎞ ⎛
⎞
⎠
------------ -----------
(4000)
⎠ ⎝
FOSC RINT
FIGURE 3-1:
Basic Dual Slope Converter.
complete
CINT = -----------------------------------------------------
VINT
In simple dual slope converter,
a
a
Where:
FOSC
VFS
conversion requires the integrator output to “ramp-up”
and “ramp-down.” A simple mathematical equation
relates the input signal, reference voltage and
integration time.
=
Clock Frequency at Pin 38
Full Scale Input Voltage
Integrating Resistor
=
=
=
RINT
VINT
Desired Full Scale Integrator Output
Swing
EQUATION 3-1:
TSI
VRTRI
VIN(t)dt = --------------
RC
1
RC
-------
∫
0
Where:
VR
=
=
=
Reference voltage
TSI
Signal integration time (fixed)
TRI
Reference voltage integration time
(variable).
DS21455D-page 8
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
4.3
Reference Integrate Phase
4.0
ANALOG SECTION
The third phase is reference integrate or de-integrate.
VIN- is internally connected to analog common and
VIN+ is connected across the previously charged
reference capacitor. Circuitry within the chip ensures
that the capacitor will be connected with the correct
polarity to cause the integrator output to return to zero.
In addition to the basic signal integrate and de-
integrate cycles discussed, the circuit incorporates an
auto-zero cycle. This cycle removes buffer amplifier,
integrator, and comparator offset voltage error terms
from the conversion. A true digital zero reading results
without adjusting external potentiometers. A complete
conversion consists of three cycles: an auto-zero,
signal integrate, and reference integrate cycle.
The time required for the output to return to zero is
proportional to the input signal and is between 0 and
2000 counts.
4.1
Auto-Zero Cycle
The digital reading displayed is:
During the auto-zero cycle, the differential input signal
is disconnected from the circuit by opening internal
analog gates. The internal nodes are shorted to analog
common (ground) to establish a zero input condition.
Additional analog gates close a feedback loop around
the integrator and comparator. This loop permits
comparator offset voltage error compensation. The
voltage level established on CAZ compensates for
device offset voltages. The offset error referred to the
input is less than 10 µV.
EQUATION 4-2:
VIN
1000 = ------------
VREF
The auto-zero cycle length is 1000 to 3000 counts.
4.2
Signal Integrate Cycle
The auto-zero loop is entered and the internal
differential inputs connect to VIN+ and VIN-. The
differential input signal is integrated for a fixed time
period. The TC7106/TC7106A signal integration period
is 1000 clock periods or counts. The externally set
clock frequency is divided by four before clocking the
internal counters.
The integration time period is:
EQUATION 4-1:
4
------------
TSI
=
× 1000
FOSC
Where:
FOSC
=
Externally set clock frequency
The differential input voltage must be within the device
Common mode range when the converter and
measured system share the same power supply
common (ground). If the converter and measured
system do not share the same power supply common,
VIN- should be tied to analog common.
Polarity is determined at the end of signal integrate
phase. The sign bit is a true polarity indication, in that
signals less than 1 LSB are correctly determined. This
allows precision null detection limited only by device
noise and auto-zero residual offsets.
© 2008 Microchip Technology Inc.
DS21455D-page 9
TC7106/A/TC7107/A
5.0
DIGITAL SECTION (TC7106A)
The TC7106A (Figure 5-2) contains all the segment
drivers necessary to directly drive a 3-1/2 digit liquid
crystal display (LCD). An LCD backplane driver is
included. The backplane frequency is the external
clock frequency divided by 800. For three
conversions per second, the backplane frequency is
60Hz with a 5V nominal amplitude. When a segment
driver is in phase with the backplane signal, the
segment is “OFF.” An out of phase segment drive
signal causes the segment to be “ON” or visible. This
AC drive configuration results in negligible DC voltage
across each LCD segment. This insures long LCD
display life. The polarity segment driver is “ON” for
negative analog inputs. If VIN+ and VIN- are reversed,
this indicator will reverse.
When the TEST pin on the TC7106A is pulled to V+, all
segments are turned “ON.” The display reads -1888.
During this mode, the LCD segments have a constant
DC voltage impressed. DO NOT LEAVE THE
DISPLAY IN THIS MODE FOR MORE THAN
SEVERAL MINUTES! LCD displays may be destroyed
if operated with DC levels for extended periods.
The display font and the segment drive assignment are
shown in Figure 5-1.
Display Font
1000s' 100s'
10s'
1s'
FIGURE 5-1:
Display Font and Segment
Assignment
In the TC7106A, an internal digital ground is generated
from a 6-volt zener diode and a large P channel source
follower. This supply is designed to absorb the large
capacitive currents when the backplane voltage is
switched.
DS21455D-page 10
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
FIGURE 5-2:
TC7106A Block Diagram.
© 2008 Microchip Technology Inc.
DS21455D-page 11
TC7106/A/TC7107/A
6.2
Clock Circuit
6.0
DIGITAL SECTION (TC7107A)
Three clocking methods may be used (see Figure 6-1):
Figure 6-2 shows a TC7106A block diagram. It is
designed to drive common anode LEDs. It is identical
to the TC7106A, except that the regulated supply and
backplane drive have been eliminated and the segment
drive is typically 8 mA. The 1000’s output (Pin 19) sinks
current from two LED segments, and has a 16 mA drive
capability.
1. An external oscillator connected to Pin 40.
2. A crystal between Pins 39 and 40.
3. An RC oscillator using all three pins.
TC7106A
TC7107A
In both devices, the polarity indication is “ON” for
negative analog inputs. If VIN- and VIN+ are reversed,
this indication can be reversed also, if desired.
To
Counter
µ
4
The display font is the same as the TC7106A.
40
Crystal
39
38
6.1
System Timing
EXT
OSC
The oscillator frequency is divided by 4 prior to clocking
the internal decade counters. The four-phase
measurement cycle takes a total of 4000 counts, or
16,000 clock pulses. The 4000-count cycle is indepen-
dent of input signal magnitude.
RC Network
To TEST Pin on TSC7106A
To GND Pin on TSC7107A
FIGURE 6-1:
Clock Circuits.
Each phase of the measurement cycle has the
following length:
1. Auto-zero phase: 1000 to 3000 counts (4000 to
12000 clock pulses).
For signals less than full scale, the auto-zero phase is
assigned the unused reference integrate time period:
2. Signal integrate: 1000 counts (4000 clock
pulses).
This time period is fixed. The integration period is:
EQUATION 6-1:
4
------------
TSI
=
× 1000
FOSC
Where:
FOSC
=
Externally set clock frequency
3. Reference Integrate: 0 to 2000 counts (0 to 8000
clock pulses).
The TC7106A/TC7107A are drop-in replacements for
the TC7106/TC7107 parts. External component value
changes are not required to benefit from the low drift
internal reference.
DS21455D-page 12
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
FIGURE 6-2:
TC7107A Block Diagram.
© 2008 Microchip Technology Inc.
DS21455D-page 13
TC7106/A/TC7107/A
7.4
Integrating Resistor (RINT)
7.0
COMPONENT VALUE
SELECTION
The input buffer amplifier and integrator are designed
with class A output stages. The output stage idling
current is 100 µA. The integrator and buffer can supply
20 µA drive currents with negligible linearity errors.
RINT is chosen to remain in the output stage linear drive
region, but not so large that printed circuit board
leakage currents induce errors. For a 200 mV full scale,
RINT is 47 kΩ. 2.0V full scale requires 470 kΩ.
7.1
Auto-Zero Capacitor (CAZ)
The CAZ capacitor size has some influence on system
noise. A 0.47 µF capacitor is recommended for 200 mV
full scale applications where 1LSB is 100 µV. A
0.047 µF capacitor is adequate for 2.0V full scale
applications. A mylar type dielectric capacitor is
adequate.
TABLE 7-1:
COMPONENT VALUES AND
NOMINAL FULL SCALE
VOLTAGE
7.2
Reference Voltage Capacitor
(CREF
)
Nominal Full Scale Voltage
Component
Value
The reference voltage used to ramp the integrator out-
put voltage back to zero during the reference integrate
cycle is stored on CREF. A 0.1 µF capacitor is
acceptable when VIN- is tied to analog common. If a
large Common mode voltage exists (VREF- – analog
common) and the application requires 200 mV full
scale, increase CREF to 1.0 µF. Rollover error will be
held to less than 1/2 count. A mylar dielectric capacitor
is adequate.
200.0 mV
2.000V
CAZ
RINT
CINT
0.47 µF
47 kΩ
0.047 µF
470 kΩ
0.22 µF
0.22 µF
Note:
FOSC = 48 kHz (3 readings per sec).
7.5
Oscillator Components
ROSC (Pin 40 to Pin 39) should be 100 kΩ. COSC is
selected using the equation:
7.3
Integrating Capacitor (CINT)
CINT should be selected to maximize the integrator
output voltage swing without causing output saturation.
Due to the TC7106A/TC7107A superior temperature
coefficient specification, analog common will normally
supply the differential voltage reference. For this case,
a ±2V full scale integrator output swing is satisfactory.
For 3 readings/second (FOSC = 48 kHz), a 0.22 µF
value is suggested. If a different oscillator frequency is
used, CINT must be changed in inverse proportion to
maintain the nominal ±2V integrator swing.
EQUATION 7-2:
0.45
RC
FOSC = ---------
Where:
FOSC
COSC
=
=
48 kHz
100 pF
Note that FOSC is divided by four to generate the
TC7106A internal control clock. The backplane drive
signal is derived by dividing FOSC by 800.
An exact expression for CINT is:
EQUATION 7-1:
To achieve maximum rejection of 60 Hz noise pickup,
the signal integrate period should be a multiple of
60 Hz. Oscillator frequencies of 240 kHz, 120 kHz,
80 kHz, 60 kHz, 48 kHz, 40 kHz, etc. should be
selected. For 50 Hz rejection, oscillator frequencies of
200 kHz, 100 kHz, 66-2/3 kHz, 50 kHz, 40 kHz, etc.
would be suitable. Note that 40 kHz (2.5 readings/
second) will reject both 50 Hz and 60 Hz.
VFS
1
⎛
⎝
⎞ ⎛
⎞
⎠
------------ -----------
(4000)
⎠ ⎝
FOSC RINT
CINT = -----------------------------------------------------
VINT
Where:
FOSC
VFS
=
Clock Frequency at Pin 38
Full Scale Input Voltage
Integrating Resistor
=
=
=
RINT
7.6
Reference Voltage Selection
VINT
Desired Full Scale Integrator Output
Swing
A full scale reading (2000 counts) requires the input
signal be twice the reference voltage.
CINT must have low dielectric absorption to minimize
Required Full Scale Voltage*
VREF
rollover error.
recommended.
A
polypropylene capacitor is
200.0 mV
2.000V
100.0 mV
1.000V
* VFS = 2VREF
DS21455D-page 14
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
In some applications, a scale factor other than unity
may exist between a transducer output voltage and the
required digital reading. Assume, for example, a
pressure transducer output is 400 mV for 2000 lb/in2.
Rather than dividing the input voltage by two, the
reference voltage should be set to 200 mV. This
permits the transducer input to be used directly.
V+
V+
V+
V+
6.8V
Zener
V
+
-
REF
6.8 kΩ
V
TC7106A
TC7107A
REF
20 k
Ω
TC7106A
TC7107A
I
The differential reference can also be used when a
digital zero reading is required when VIN is not equal to
zero. This is common in temperature measuring
instrumentation. A compensating offset voltage can be
applied between analog common and VIN-. The
transducer output is connected between VIN+ and
analog common.
Z
V
+
REF
1.2V
Ref
V
-
REF
Common
(b)
(a)
FIGURE 7-1:
External Reference.
The internal voltage reference potential available at
analog common will normally be used to supply the
converter’s reference. This potential is stable
whenever the supply potential is greater than
approximately 7V. In applications where an externally
generated reference voltage is desired, refer to
Figure 7-1.
© 2008 Microchip Technology Inc.
DS21455D-page 15
TC7106/A/TC7107/A
8.2
Differential Reference
REF+ (Pin 36), VREF- (Pin 35)
8.0
DEVICE PIN FUNCTIONAL
DESCRIPTION
V
The reference voltage can be generated anywhere
within the V+ to V- power supply range.
8.1
Differential Signal Inputs
VIN+ (Pin 31), VIN- (Pin 30)
To prevent rollover type errors being induced by large
Common mode voltages, CREF should be large
compared to stray node capacitance.
The TC7106A/TC7107A is designed with true
differential inputs and accepts input signals within the
input stage common mode voltage range (VCM). The
typical range is V+ – 1.0 to V+ + 1V. Common mode
voltages are removed from the system when the
TC7106A/TC7107A operates from a battery or floating
power source (isolated from measured system) and
VIN- is connected to analog common (VCOM) (see
Figure 8-2).
The TC7106A/TC7107A circuits have a significantly
lower analog common temperature coefficient. This
gives a very stable voltage suitable for use as a
reference. The temperature coefficient of analog
common is 20 ppm/°C typically.
8.3
Analog Common (Pin 32)
In systems where Common mode voltages exist, the
86 dB Common mode rejection ratio minimizes error.
Common mode voltages do, however, affect the
integrator output level. Integrator output saturation
must be prevented. A worst-case condition exists if a
large positive VCM exists in conjunction with a full scale
negative differential signal. The negative signal drives
the integrator output positive along with VCM (see
Figure 8-1). For such applications the integrator output
swing can be reduced below the recommended 2.0V
full scale swing. The integrator output will swing within
0.3V of V+ or V- without increasing linearity errors.
The analog common pin is set at a voltage potential
approximately 3.0V below V+. The potential is between
2.7V and 3.35V below V+. Analog common is tied
internally to the N channel FET capable of sinking
20 mA. This FET will hold the common line at 3.0V
should an external load attempt to pull the common line
toward V+. Analog common source current is limited to
10 µA. Analog common is, therefore, easily pulled to a
more negative voltage (i.e., below V+ – 3.0V).
The TC7106A connects the internal VIN+ and VIN-
inputs to analog common during the auto-zero cycle.
During the reference integrate phase, VIN- is
connected to analog common. If VIN- is not externally
connected to analog common, a Common mode
voltage exists. This is rejected by the converter’s 86 dB
Common mode rejection ratio. In battery operation,
analog common and VIN- are usually connected,
removing Common mode voltage concerns. In systems
where V- is connected to the power supply ground, or
to a given voltage, analog common should be
connected to VIN-.
C
I
Input Buffer
R
+
+
I
–
–
V
I
V
IN
+
Integrator
–
T
I
V =
VCM – VIN
[
I
[
R
C
I
I
V
CM
Where:
4000
=
T = Integration Time
I
F
OSC
C = Integration Capacitor
I
R = Integration Resistor
I
FIGURE 8-1:
Common Mode Voltage
Reduces Available Integrator Swing (VCOM ≠ VIN).
DS21455D-page 16
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
Segment
Drive
LCD Display
Measured
System
V
C
V
INT
POL BP
OSC1
BUF
+
AZ
V
V
IN
IN
TC7106A
V+
V-
OSC3
-
OSC2
V-
GND
Analog
Common
V
V
REF
+
-
REF
V+
V+
V-
GND
Power
Source
+
9V
FIGURE 8-2:
Common Mode Voltage Removed in Battery Operation with V - = Analog Common.
IN
The analog common pin serves to set the analog section
reference or common point. The TC7106A is specifically
designed to operate from a battery, or in any
measurement system where input signals are not
referenced (float), with respect to the TC7106A power
source. The analog common potential of V+ – 3.0V gives
a 6V end of battery life voltage. The common potential
has a 0.001% voltage coefficient and a 15Ω output
impedance.
external voltage references. External R and C values
do not need to be changed. Figure 8-4 shows analog
common supplying the necessary voltage reference for
the TC7106A/TC7107A.
200
180
No Maximum Specified
No
Maximum
Specified
160
140
120
100
With sufficiently high total supply voltage (V+ – V- >
7.0V), analog common is a very stable potential with
excellent temperature stability, typically 20 ppm/°C.
This potential can be used to generate the reference
voltage. An external voltage reference will be
unnecessary in most cases because of the 50 ppm/°C
maximum temperature coefficient. See Section 8.5
“Internal Voltage Reference”.
Typical
No
Maximum
Specified
Maximum
Limit
80
60
40
20
Typical
Typical
TC
ICL7106
ICL7136
7106A
8.4
TEST (Pin 37)
0
The TEST pin potential is 5V less than V+. TEST may
be used as the negative power supply connection for
external CMOS logic. The TEST pin is tied to the
internally generated negative logic supply (Internal
FIGURE 8-3:
Temperature Coefficient.
Analog Common
Logic Ground) through
a 500Ω resistor in the
TC7106A. The TEST pin load should be no more than
1 mA.
1
24k
Ω
V-
V+
If TEST is pulled to V+ all segments plus the minus sign
will be activated. Do not operate in this mode for more
than several minutes with the TC7106A. With
TEST = V+, the LCD segments are impressed with a
DC voltage which will destroy the LCD.
TC7106A
TC7107A
36
V
1kΩ
+
REF
V
REF
The TEST pin will sink about 10 mA when pulled to V+.
35
V
-
REF
32
Analog
Common
8.5
Internal Voltage Reference
Set V
= 1/2 V
FULL SCALE
The analog common voltage temperature stability has
been significantly improved (Figure 8-3). The “A”
version of the industry standard circuits allow users to
upgrade old systems and design new systems without
REF
FIGURE 8-4:
Connection.
Internal Voltage Reference
© 2008 Microchip Technology Inc.
DS21455D-page 17
TC7106/A/TC7107/A
9.1
TC7107 Power Dissipation
Reduction
9.0
POWER SUPPLIES
The TC7107A is designed to work from ±5V supplies.
However, if a negative supply is not available, it can be
generated from the clock output with two diodes, two
capacitors, and an inexpensive IC (Figure 9-1).
The TC7107A sinks the LED display current and this
causes heat to build up in the IC package. If the internal
voltage reference is used, the changing chip
temperature can cause the display to change reading.
By reducing the LED common anode voltage, the
TC7107A package power dissipation is reduced.
V+
CD4009
Figure 9-3 is a curve tracer display showing the
relationship between output current and output voltage
for a typical TC7107CPL. Since a typical LED has 1.8
volts across it at 7 mA, and its common anode is
connected to +5V, the TC7107A output is at 3.2V (point
A on Figure 9-3). Maximum power dissipation is
8.1 mA x 3.2V x 24 segments = 622 mW.
V+
OSC1
OSC2
0.047
µF
1N914
+
–
OSC3
10
µF
TC7107A
1N914
GND
V-
10.000
V- = -3.3V
9.000
FIGURE 9-1:
Generating Negative Supply
A
From +5V.
8.000
7.000
6.000
B
In selected applications a negative supply is not
required. The conditions to use a single +5V supply
are:
C
• The input signal can be referenced to the center
of the Common mode range of the converter.
2.00
2.50
3.00
3.50
4.00
Output Voltage (V)
• The signal is less than ±1.5V.
• An external reference is used.
FIGURE 9-3:
Output Voltage.
TC7107 Output Current vs.
The TSC7660 DC-to-DC converter may be used to
generate -5V from +5V (Figure 9-2).
Notice, however, that once the TC7107A output voltage
is above two volts, the LED current is essentially
constant as output voltage increases. Reducing the
output voltage by 0.7V (point B in Figure 9-3) results in
7.7 mA of LED current, only a 5 percent reduction.
Maximum power dissipation is only 7.7 mA x 2.5V x 24
= 462 mW, a reduction of 26%. An output voltage
reduction of 1 volt (point C) reduces LED current by
10% (7.3 mA) but power dissipation by 38% (7.3 mA x
2.2V x 24 = 385 mW).
+5V
1
36
V+
V
+
REF
35
32
V
-
REF
LED
DRIVE
Reduced power dissipation is very easy to obtain.
Figure 9-4 shows two ways: either a 5.1Ω, 1/4W
resistor, or a 1A diode placed in series with the display
(but not in series with the TC7107A). The resistor will
reduce the TC7107A output voltage, when all 24
segments are “ON,” to point “C” of Figure 9-4. When
segments turn off, the output voltage will increase. The
diode, on the other hand, will result in a relatively
steady output voltage, around point “B”.
COM
TC7107A
31
V
+
IN
V
IN
30
21
V
-
IN
GND
V-
26
8
TC7660
2
4
+
(-5V)
5
10 µF
3
+
10 µF
FIGURE 9-2:
Negative Power Supply
Generation with TC7660.
DS21455D-page 18
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
In addition to limiting maximum power dissipation, the
resistor reduces the change in power dissipation as the
display changes. This effect is caused by the fact that,
as fewer segments are “ON,” each “ON” output drops
more voltage and current. For the best case of six
segments (a “111” display) to worst-case (a “1888”
display), the resistor will change about 230 mW, while
a circuit without the resistor will change about 470 mW.
Therefore, the resistor will reduce the effect of display
dissipation on reference voltage drift by about 50%.
The change in LED brightness caused by the resistor is
almost unnoticeable as more segments turn off. If
display brightness remaining steady is very important
to the designer, a diode may be used instead of the
resistor.
IN
-5V
+5V
+
–
1 MΩ
24 kΩ
150
Ω
TP3
1 kΩ
0.47
µF
0.22
µF
100 pF
0.01
µ
F
TP5
100
kΩ
Display
TP2
TP1
0.1
47
µ
F
k
Ω
40
1
30
TP
4
21
20
TC7107A
10
Display
5.1 1/4W
Ω
1N4001
FIGURE 9-4:
Diode or Resistor Limits
Package Power Dissipation.
© 2008 Microchip Technology Inc.
DS21455D-page 19
TC7106/A/TC7107/A
input and the voltage across the known resistor is
applied to the reference input. If the unknown equals
the standard, the display will read 1000.
10.0 TYPICAL APPLICATIONS
10.1 Decimal Point and Annunciator
Drive
The displayed reading can be determined from the
following expression:
The TEST pin is connected to the internally generated
digital logic supply ground through a 500Ω resistor. The
TEST pin may be used as the negative supply for
external CMOS gate segment drivers. LCD display
annunciators for decimal points, low battery indication,
or function indication may be added without adding an
additional supply. No more than 1 mA should be
supplied by the TEST pin; its potential is approximately
5V below V+ (see Figure 10-1).
EQUATION 10-1:
RUNKNOWN
-----------------------------
Displayed (Reading) =
× 1000
RSTANDARD
The display will over range for:
RUNKNOWN ≥ 2 x RSTANDARD
V+
V
+
-
REF
VREF
R
V+
STANDARD
V+
LCD Display
V
+
INTC7106A
4049
R
UNKNOWN
TC7106A
To LCD
Decimal
Point
21
BP
V -
IN
Analog
Common
GND
37
TEST
To LCD
Backplane
FIGURE 10-2:
Low Parts Count
Ratiometric Resistance Measurement.
V+
+
9V
V+
BP
160 k
Ω
300 k
Ω
300kΩ
To LCD
Decimal
Point
V+
-
V-
Decimal
Point
Select
TC7106A
V
IN
R
50 k
1N4148
Sensor
V
+
1
Ω
IN
TC7106A
V
= 2V
4030
GND
TEST
FS
R
V
+
2
REF
50 k
Ω
V
-
REF
Common
FIGURE 10-1:
Decimal Point Drive Using
Test as Logic Ground.
FIGURE 10-3:
Temperature Sensor.
10.2 Ratiometric Resistance
Measurements
The true differential input and differential reference
make ratiometric reading possible. Typically in a
ratiometric operation, an unknown resistance is
measured, with respect to
a
known standard
resistance. No accurately defined reference voltage is
needed.
The unknown resistance is put in series with a known
standard and a current passed through the pair. The
voltage developed across the unknown is applied to the
DS21455D-page 20
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
To Pin 1
+
9V
Set V
= 100 mV
REF
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
100 k
Ω
5.6 k
Ω
160 kΩ
V+
V-
100 pF
R
V
-
1
Ω
1N914
IN
20 k
+5V
1 k
Ω
22 k
1 M
Ω
V
+
0.1 µF
IN
Ω
+
–
TC7106A
0.7%/×C
PTC
TC7107A
R
20 k
R
3
2
Ω
V
+
IN
0.01 µF
47 k
REF
0.47 µF
Ω
V
-
REF
0.22µF
Common
-5V
To Display
FIGURE 10-4:
Positive Temperature
Coefficient Resistor Temperature Sensor.
FIGURE 10-6:
TC7107 Internal Reference:
200 mV Full Scale, 3RPS, VIN- Tied to GND for
Single Ended Inputs.
To Pin 1
Set V
= 100 mV
REF
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
100 k
Ω
100 pF
V+
1
40
1 k
Ω
22 k
1M
Ω
Ω
0.1 µF
To Logic
+
–
V
CC
TC7106A
IN
0.01 µF
47 k
To Logic
V
TC7106A
CC
+
–
0.47 µF
Ω
9V
0.22 µF
V-
O/R
U/R
To Display
To Backplane
20
21
CD4023
OR 74C10
CD4077 O/R = Over Range
U/R = Under Range
FIGURE 10-5:
Reference: 200 mV Full Scale, 3 Readings-Per-
Second (RPS).
TC7106A, Using the Internal
FIGURE 10-7:
Circuit for Developing Under
Range and Over Range Signals from TC7106A
Outputs.
© 2008 Microchip Technology Inc.
DS21455D-page 21
TC7106/A/TC7107/A
To Pin 1
To PIn 1
Set V
= 1V
REF
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
100 k
Ω
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
100k
Ω
Set V
= 100mV
REF
100 pF
100pF
24 k
Ω
10kΩ
10k
Ω
V+
V+
25 k
Ω
1k
Ω
0.1 µF
0.1µF
1 M
0.01 µF
470 k
Ω
+
+
1.2V
0.01µF
TC7106A
TC7107A
TC7107A
IN
IN
1MΩ
0.047 µF
–
0.47µ
F
–
Ω
47k
Ω
0.22µF
0.22 µF
V-
To Display
To Display
FIGURE 10-8:
TC7106/TC7107:
FIGURE 10-9:
TC7107 Operated from
Recommended Component Values for 2.00V Full
Scale.
Single +5V Supply.
+
9V
+
IN4148
200 mV
1 mF
26
–
V
27
29
28
1
IN
V-
V+
V
14
13
12
11
10
9
1
2
3
4
5
6
7
10 k
1 M
Ω
9 M
Ω
24 k
Ω
2V
0.02
mF
Ω
TC7106A
900 k
Ω
1 M
Ω
36
+
20V
200V
1 k
Ω
REF
AD636
47 k
1W
10%
Ω
–
35
32
31
V
-
REF
90 k
10 k
Ω
Ω
6.8µF
+
Analog Common
V +
1 MΩ 10%
40
8
IN
0.01
µF
20 k
Ω
2.2µF
10%
30
26
38
39
V
-
COM
IN
C1 = 3 - 10 pF Variable
C2 = 132 pF Variable
V-
BP
SEG
DRIVE
LCD Display
FIGURE 10-10:
3-1/2 Digit True RMS AC DMM.
DS21455D-page 22
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
9V
2
1
Constant 5V
V+
V+
V
V
+
REF
TC7106A
REF02
51 k
Ω
5.1 k
Ω
TC911
50 k
Ω
Ω
6
V
R
-
2
OUT
REF
R
R
5
4
V
= 2.00V
FS
5
3
2
–
8
1
ADJ
NC
V
V
-
IN
3
+
TEMP
V
=
OUT
4
+
1.86V @
25×C
IN
Temperature
Dependent
Output
50 k
1.3k
R
1
Common
V-
GND
4
26
FIGURE 10-11:
Integrated Circuit Temperature Sensor.
© 2008 Microchip Technology Inc.
DS21455D-page 23
TC7106/A/TC7107/A
11.0 PACKAGING INFORMATION
11.1 Package Marking Information
40-Pin PDIP
Example:
XXXXXXXXXXXXXXXXXX
TC7106CPL
e3
XXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXX
YYWWNNN
*h
0743256
*h
44-Pin MQFP
Example:
M
M
0743256
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
YYWWNNN
TC106CKW
e
3
44-Pin PLCC
Example:
1
M
M
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
YYWWNNN
TC7106CLW
e
3
0743256
Legend: XX...X Customer-specific information
Y
Year code (last digit of calendar year)
YY
Year code (last 2 digits of calendar year)
WW
NNN
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator (
can be found on the outer packaging for this package.
e
3
e
3
*
)
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
DS21455D-page 24
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉꢅꢊꢋꢌꢍꢇꢎꢏꢅꢉꢇꢐꢑꢂꢃꢌꢑꢄꢇꢒꢈꢃꢓꢇMꢇꢔꢁꢁꢇꢕꢌꢉꢇꢖꢗꢆꢘꢇꢙꢈꢎꢐꢈꢚ
ꢛꢗꢋꢄꢜ .ꢕꢐꢅꢏꢘꢌꢅꢑꢕꢇꢏꢅꢖꢈꢐꢐꢌꢄꢏꢅ#ꢉꢖ/ꢉꢛꢌꢅꢋꢐꢉꢗꢃꢄꢛꢇꢓꢅ#ꢊꢌꢉꢇꢌꢅꢇꢌꢌꢅꢏꢘꢌꢅ$ꢃꢖꢐꢕꢖꢘꢃ#ꢅꢂꢉꢖ/ꢉꢛꢃꢄꢛꢅꢚ#ꢌꢖꢃꢎꢃꢖꢉꢏꢃꢕꢄꢅꢊꢕꢖꢉꢏꢌꢋꢅꢉꢏꢅ
ꢘꢏꢏ#,00ꢗꢗꢗꢁꢑꢃꢖꢐꢕꢖꢘꢃ#ꢁꢖꢕꢑ0#ꢉꢖ/ꢉꢛꢃꢄꢛ
N
NOTE 1
E1
1 2 3
D
E
A2
A
L
c
b1
b
A1
e
eB
1ꢄꢃꢏꢇ
23ꢜ4ꢝꢚ
!ꢃꢑꢌꢄꢇꢃꢕꢄꢅ5ꢃꢑꢃꢏꢇ
$23
36$
$(7
3ꢈꢑꢔꢌꢐꢅꢕꢎꢅꢂꢃꢄꢇ
ꢂꢃꢏꢖꢘ
3
ꢌ
'%
ꢁꢀ%%ꢅ+ꢚꢜ
-ꢕ#ꢅꢏꢕꢅꢚꢌꢉꢏꢃꢄꢛꢅꢂꢊꢉꢄꢌ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅ-ꢘꢃꢖ/ꢄꢌꢇꢇ
+ꢉꢇꢌꢅꢏꢕꢅꢚꢌꢉꢏꢃꢄꢛꢅꢂꢊꢉꢄꢌ
ꢚꢘꢕꢈꢊꢋꢌꢐꢅꢏꢕꢅꢚꢘꢕꢈꢊꢋꢌꢐꢅ:ꢃꢋꢏꢘ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅ:ꢃꢋꢏꢘ
6ꢆꢌꢐꢉꢊꢊꢅ5ꢌꢄꢛꢏꢘ
-ꢃ#ꢅꢏꢕꢅꢚꢌꢉꢏꢃꢄꢛꢅꢂꢊꢉꢄꢌ
5ꢌꢉꢋꢅ-ꢘꢃꢖ/ꢄꢌꢇꢇ
1##ꢌꢐꢅ5ꢌꢉꢋꢅ:ꢃꢋꢏꢘ
(
M
M
M
M
M
M
M
M
M
M
M
M
ꢁꢙ*%
ꢁꢀ9*
M
(ꢙ
(ꢀ
ꢝ
ꢝꢀ
!
5
ꢖ
ꢔꢀ
ꢔ
ꢌ+
ꢁꢀꢙ*
ꢁ%ꢀ*
ꢁ*9%
ꢁ'<*
ꢀꢁ9<%
ꢁꢀꢀ*
ꢁ%%<
ꢁ% %
ꢁ%ꢀ'
M
ꢁ;ꢙ*
ꢁ*<%
ꢙꢁ%9*
ꢁꢙ%%
ꢁ%ꢀ*
ꢁ%=%
ꢁ%ꢙ
ꢁ=%%
5ꢕꢗꢌꢐꢅ5ꢌꢉꢋꢅ:ꢃꢋꢏꢘ
6ꢆꢌꢐꢉꢊꢊꢅ>ꢕꢗꢅꢚ#ꢉꢖꢃꢄꢛꢅꢅ"
ꢛꢗꢋꢄꢊꢜ
ꢀꢁ ꢂꢃꢄꢅꢀꢅꢆꢃꢇꢈꢉꢊꢅꢃꢄꢋꢌꢍꢅꢎꢌꢉꢏꢈꢐꢌꢅꢑꢉꢒꢅꢆꢉꢐꢒꢓꢅꢔꢈꢏꢅꢑꢈꢇꢏꢅꢔꢌꢅꢊꢕꢖꢉꢏꢌꢋꢅꢗꢃꢏꢘꢃꢄꢅꢏꢘꢌꢅꢘꢉꢏꢖꢘꢌꢋꢅꢉꢐꢌꢉꢁ
ꢙꢁ "ꢅꢚꢃꢛꢄꢃꢎꢃꢖꢉꢄꢏꢅꢜꢘꢉꢐꢉꢖꢏꢌꢐꢃꢇꢏꢃꢖꢁ
ꢁ !ꢃꢑꢌꢄꢇꢃꢕꢄꢇꢅ!ꢅꢉꢄꢋꢅꢝꢀꢅꢋꢕꢅꢄꢕꢏꢅꢃꢄꢖꢊꢈꢋꢌꢅꢑꢕꢊꢋꢅꢎꢊꢉꢇꢘꢅꢕꢐꢅ#ꢐꢕꢏꢐꢈꢇꢃꢕꢄꢇꢁꢅ$ꢕꢊꢋꢅꢎꢊꢉꢇꢘꢅꢕꢐꢅ#ꢐꢕꢏꢐꢈꢇꢃꢕꢄꢇꢅꢇꢘꢉꢊꢊꢅꢄꢕꢏꢅꢌꢍꢖꢌꢌꢋꢅꢁ%ꢀ%&ꢅ#ꢌꢐꢅꢇꢃꢋꢌꢁ
'ꢁ !ꢃꢑꢌꢄꢇꢃꢕꢄꢃꢄꢛꢅꢉꢄꢋꢅꢏꢕꢊꢌꢐꢉꢄꢖꢃꢄꢛꢅ#ꢌꢐꢅ(ꢚ$ꢝꢅ)ꢀ'ꢁ*$ꢁ
+ꢚꢜ, +ꢉꢇꢃꢖꢅ!ꢃꢑꢌꢄꢇꢃꢕꢄꢁꢅ-ꢘꢌꢕꢐꢌꢏꢃꢖꢉꢊꢊꢒꢅꢌꢍꢉꢖꢏꢅꢆꢉꢊꢈꢌꢅꢇꢘꢕꢗꢄꢅꢗꢃꢏꢘꢕꢈꢏꢅꢏꢕꢊꢌꢐꢉꢄꢖꢌꢇꢁ
$ꢃꢖꢐꢕꢖꢘꢃ# -ꢌꢖꢘꢄꢕꢊꢕꢛꢒ !ꢐꢉꢗꢃꢄꢛ ꢜ%'?%ꢀ;+
© 2008 Microchip Technology Inc.
DS21455D-page 25
TC7106/A/TC7107/A
ꢀꢀꢂꢃꢄꢅꢆꢇꢈꢉꢅꢊꢋꢌꢍꢇ ꢄꢋ!ꢌꢍꢇ"ꢏꢅꢆꢇ#ꢉꢅꢋ$ꢅꢍ%ꢇꢒ&'ꢓꢇMꢇ(ꢁ)(ꢁ)*ꢇꢕꢕꢇꢖꢗꢆꢘ+ꢇ,-*ꢁꢇꢕꢕꢇꢙ "#ꢈꢚ
ꢛꢗꢋꢄꢜ .ꢕꢐꢅꢏꢘꢌꢅꢑꢕꢇꢏꢅꢖꢈꢐꢐꢌꢄꢏꢅ#ꢉꢖ/ꢉꢛꢌꢅꢋꢐꢉꢗꢃꢄꢛꢇꢓꢅ#ꢊꢌꢉꢇꢌꢅꢇꢌꢌꢅꢏꢘꢌꢅ$ꢃꢖꢐꢕꢖꢘꢃ#ꢅꢂꢉꢖ/ꢉꢛꢃꢄꢛꢅꢚ#ꢌꢖꢃꢎꢃꢖꢉꢏꢃꢕꢄꢅꢊꢕꢖꢉꢏꢌꢋꢅꢉꢏꢅ
ꢘꢏꢏ#,00ꢗꢗꢗꢁꢑꢃꢖꢐꢕꢖꢘꢃ#ꢁꢖꢕꢑ0#ꢉꢖ/ꢉꢛꢃꢄꢛ
D
D1
E
e
E1
N
b
NOTE 1
α
1
2 3
NOTE 2
c
φ
A1
A
L1
L
A2
β
1ꢄꢃꢏꢇ
$2552$ꢝ-ꢝ>ꢚ
!ꢃꢑꢌꢄꢇꢃꢕꢄꢅ5ꢃꢑꢃꢏꢇ
$23
36$
$(7
3ꢈꢑꢔꢌꢐꢅꢕꢎꢅ5ꢌꢉꢋꢇ
5ꢌꢉꢋꢅꢂꢃꢏꢖꢘ
3
ꢌ
''
%ꢁ<%ꢅ+ꢚꢜ
6ꢆꢌꢐꢉꢊꢊꢅ4ꢌꢃꢛꢘꢏ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅ-ꢘꢃꢖ/ꢄꢌꢇꢇ
ꢚꢏꢉꢄꢋꢕꢎꢎꢅꢅ"
(
M
M
ꢙꢁ%%
M
%ꢁ<<
ꢙꢁ'*
ꢙꢁꢙ%
%ꢁꢙ*
ꢀꢁ%
(ꢙ
(ꢀ
5
ꢀꢁ<%
%ꢁ%%
%ꢁ=
.ꢕꢕꢏꢅ5ꢌꢄꢛꢏꢘ
.ꢕꢕꢏ#ꢐꢃꢄꢏ
.ꢕꢕꢏꢅ(ꢄꢛꢊꢌ
5ꢀ
ꢀ
ꢀꢁ;%ꢅ>ꢝ.
%ꢞ
M
=ꢞ
6ꢆꢌꢐꢉꢊꢊꢅ:ꢃꢋꢏꢘ
ꢝ
ꢀ ꢁꢙ%ꢅ+ꢚꢜ
6ꢆꢌꢐꢉꢊꢊꢅ5ꢌꢄꢛꢏꢘ
!
ꢀ ꢁꢙ%ꢅ+ꢚꢜ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅ:ꢃꢋꢏꢘ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅ5ꢌꢄꢛꢏꢘ
5ꢌꢉꢋꢅ-ꢘꢃꢖ/ꢄꢌꢇꢇ
5ꢌꢉꢋꢅ:ꢃꢋꢏꢘ
$ꢕꢊꢋꢅ!ꢐꢉꢎꢏꢅ(ꢄꢛꢊꢌꢅ-ꢕ#
$ꢕꢊꢋꢅ!ꢐꢉꢎꢏꢅ(ꢄꢛꢊꢌꢅ+ꢕꢏꢏꢕꢑ
ꢝꢀ
!ꢀ
ꢖ
ꢔ
ꢁ
ꢀ%ꢁ%%ꢅ+ꢚꢜ
ꢀ%ꢁ%%ꢅ+ꢚꢜ
%ꢁꢀꢀ
%ꢁꢙ9
*ꢞ
M
M
M
M
%ꢁꢙ
%ꢁ'*
ꢀ;ꢞ
ꢂ
*ꢞ
ꢀ;ꢞ
ꢛꢗꢋꢄꢊꢜ
ꢀꢁ ꢂꢃꢄꢅꢀꢅꢆꢃꢇꢈꢉꢊꢅꢃꢄꢋꢌꢍꢅꢎꢌꢉꢏꢈꢐꢌꢅꢑꢉꢒꢅꢆꢉꢐꢒꢓꢅꢔꢈꢏꢅꢑꢈꢇꢏꢅꢔꢌꢅꢊꢕꢖꢉꢏꢌꢋꢅꢗꢃꢏꢘꢃꢄꢅꢏꢘꢌꢅꢘꢉꢏꢖꢘꢌꢋꢅꢉꢐꢌꢉꢁ
ꢙꢁ ꢜꢘꢉꢑꢎꢌꢐꢇꢅꢉꢏꢅꢖꢕꢐꢄꢌꢐꢇꢅꢉꢐꢌꢅꢕ#ꢏꢃꢕꢄꢉꢊ@ꢅꢇꢃAꢌꢅꢑꢉꢒꢅꢆꢉꢐꢒꢁ
ꢁ !ꢃꢑꢌꢄꢇꢃꢕꢄꢇꢅ!ꢀꢅꢉꢄꢋꢅꢝꢀꢅꢋꢕꢅꢄꢕꢏꢅꢃꢄꢖꢊꢈꢋꢌꢅꢑꢕꢊꢋꢅꢎꢊꢉꢇꢘꢅꢕꢐꢅ#ꢐꢕꢏꢐꢈꢇꢃꢕꢄꢇꢁꢅ$ꢕꢊꢋꢅꢎꢊꢉꢇꢘꢅꢕꢐꢅ#ꢐꢕꢏꢐꢈꢇꢃꢕꢄꢇꢅꢇꢘꢉꢊꢊꢅꢄꢕꢏꢅꢌꢍꢖꢌꢌꢋꢅ%ꢁꢙ*ꢅꢑꢑꢅ#ꢌꢐꢅꢇꢃꢋꢌꢁ
'ꢁ !ꢃꢑꢌꢄꢇꢃꢕꢄꢃꢄꢛꢅꢉꢄꢋꢅꢏꢕꢊꢌꢐꢉꢄꢖꢃꢄꢛꢅ#ꢌꢐꢅ(ꢚ$ꢝꢅ)ꢀ'ꢁ*$ꢁ
+ꢚꢜ, +ꢉꢇꢃꢖꢅ!ꢃꢑꢌꢄꢇꢃꢕꢄꢁꢅ-ꢘꢌꢕꢐꢌꢏꢃꢖꢉꢊꢊꢒꢅꢌꢍꢉꢖꢏꢅꢆꢉꢊꢈꢌꢅꢇꢘꢕꢗꢄꢅꢗꢃꢏꢘꢕꢈꢏꢅꢏꢕꢊꢌꢐꢉꢄꢖꢌꢇꢁ
>ꢝ., >ꢌꢎꢌꢐꢌꢄꢖꢌꢅ!ꢃꢑꢌꢄꢇꢃꢕꢄꢓꢅꢈꢇꢈꢉꢊꢊꢒꢅꢗꢃꢏꢘꢕꢈꢏꢅꢏꢕꢊꢌꢐꢉꢄꢖꢌꢓꢅꢎꢕꢐꢅꢃꢄꢎꢕꢐꢑꢉꢏꢃꢕꢄꢅ#ꢈꢐ#ꢕꢇꢌꢇꢅꢕꢄꢊꢒꢁ
*ꢁ "ꢅꢚꢃꢛꢄꢃꢎꢃꢖꢉꢄꢏꢅꢜꢘꢉꢐꢉꢖꢏꢌꢐꢃꢇꢏꢃꢖꢁ
$ꢃꢖꢐꢕꢖꢘꢃ# -ꢌꢖꢘꢄꢕꢊꢕꢛꢒ !ꢐꢉꢗꢃꢄꢛ ꢜ%'?%=ꢀ+
DS21455D-page 26
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
ꢀꢀꢂꢃꢄꢅꢆꢇꢈꢉꢅꢊꢋꢌꢍꢇꢃꢄꢅꢆꢄꢆꢇ./ꢌ$ꢇ.ꢅ!!ꢌꢄ!ꢇꢒꢃ'ꢓꢇMꢇ01ꢏꢅ!ꢄꢇꢙꢈꢃ..ꢚ
ꢛꢗꢋꢄꢜ .ꢕꢐꢅꢏꢘꢌꢅꢑꢕꢇꢏꢅꢖꢈꢐꢐꢌꢄꢏꢅ#ꢉꢖ/ꢉꢛꢌꢅꢋꢐꢉꢗꢃꢄꢛꢇꢓꢅ#ꢊꢌꢉꢇꢌꢅꢇꢌꢌꢅꢏꢘꢌꢅ$ꢃꢖꢐꢕꢖꢘꢃ#ꢅꢂꢉꢖ/ꢉꢛꢃꢄꢛꢅꢚ#ꢌꢖꢃꢎꢃꢖꢉꢏꢃꢕꢄꢅꢊꢕꢖꢉꢏꢌꢋꢅꢉꢏꢅ
ꢘꢏꢏ#,00ꢗꢗꢗꢁꢑꢃꢖꢐꢕꢖꢘꢃ#ꢁꢖꢕꢑ0#ꢉꢖ/ꢉꢛꢃꢄꢛ
D
D1
CH2 x 45°
E
E1
N 1 2 3
NOTE 1
CH1 x 45°
CH3 x 45°
A
c
A2
A1
b1
b
A3
e
D2
E2
1ꢄꢃꢏꢇ
!ꢃꢑꢌꢄꢇꢃꢕꢄꢅ5ꢃꢑꢃꢏꢇ
23ꢜ4ꢝꢚ
36$
''
ꢁ%*%
ꢁꢀ=ꢙ
ꢁꢀ%*
M
M
M
M
M
ꢁ;9%
ꢁ;9%
ꢁ;*
ꢁ;*
ꢁ;ꢀ%
ꢁ;ꢀ%
M
$23
$(7
3ꢈꢑꢔꢌꢐꢅꢕꢎꢅꢂꢃꢄꢇ
ꢂꢃꢏꢖꢘ
3
ꢌ
(
(ꢀ
(ꢙ
(
ꢜ4ꢀ
ꢜ4ꢙ
ꢜ4
ꢝ
6ꢆꢌꢐꢉꢊꢊꢅ4ꢌꢃꢛꢘꢏ
ꢜꢕꢄꢏꢉꢖꢏꢅ4ꢌꢃꢛꢘꢏ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅꢏꢕꢅꢜꢕꢄꢏꢉꢖꢏ
ꢚꢏꢉꢄꢋꢕꢎꢎꢅꢅ"
ꢁꢀ;*
ꢁ%9%
ꢁ%;ꢙ
ꢁ%ꢙ%
ꢁ%'ꢙ
M
ꢁ%'ꢙ
ꢁ;<*
ꢁ;<*
ꢁ;*%
ꢁ;*%
ꢁ*<ꢙ
ꢁ*<ꢙ
ꢁ%%=*
ꢁ%ꢙ;
ꢁ%ꢀ
ꢁꢀ<%
ꢁꢀꢙ%
ꢁ%<
M
ꢜꢕꢐꢄꢌꢐꢅꢜꢘꢉꢑꢎꢌꢐ
ꢜꢘꢉꢑꢎꢌꢐꢇ
ꢚꢃꢋꢌꢅꢜꢘꢉꢑꢎꢌꢐ
6ꢆꢌꢐꢉꢊꢊꢅ:ꢃꢋꢏꢘ
6ꢆꢌꢐꢉꢊꢊꢅ5ꢌꢄꢛꢏꢘ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅ:ꢃꢋꢏꢘ
$ꢕꢊꢋꢌꢋꢅꢂꢉꢖ/ꢉꢛꢌꢅ5ꢌꢄꢛꢏꢘ
.ꢕꢕꢏ#ꢐꢃꢄꢏꢅ:ꢃꢋꢏꢘ
.ꢕꢕꢏ#ꢐꢃꢄꢏꢅ5ꢌꢄꢛꢏꢘ
5ꢌꢉꢋꢅ-ꢘꢃꢖ/ꢄꢌꢇꢇ
1##ꢌꢐꢅ5ꢌꢉꢋꢅ:ꢃꢋꢏꢘ
5ꢕꢗꢌꢐꢅ5ꢌꢉꢋꢅ:ꢃꢋꢏꢘ
ꢁ%'<
ꢁ%ꢙ%
ꢁ%*;
ꢁ;9*
ꢁ;9*
ꢁ;*;
ꢁ;*;
ꢁ; <
ꢁ; <
ꢁ%ꢀꢙ*
ꢁ% ꢙ
ꢁ%ꢙꢀ
!
ꢝꢀ
!ꢀ
ꢝꢙ
!ꢙ
ꢖ
ꢔꢀ
ꢔ
M
M
ꢛꢗꢋꢄꢊꢜ
ꢀꢁ ꢂꢃꢄꢅꢀꢅꢆꢃꢇꢈꢉꢊꢅꢃꢄꢋꢌꢍꢅꢎꢌꢉꢏꢈꢐꢌꢅꢑꢉꢒꢅꢆꢉꢐꢒꢓꢅꢔꢈꢏꢅꢑꢈꢇꢏꢅꢔꢌꢅꢊꢕꢖꢉꢏꢌꢋꢅꢗꢃꢏꢘꢃꢄꢅꢏꢘꢌꢅꢘꢉꢏꢖꢘꢌꢋꢅꢉꢐꢌꢉꢁ
ꢙꢁ "ꢅꢚꢃꢛꢄꢃꢎꢃꢖꢉꢄꢏꢅꢜꢘꢉꢐꢉꢖꢏꢌꢐꢃꢇꢏꢃꢖꢁ
ꢁ !ꢃꢑꢌꢄꢇꢃꢕꢄꢇꢅ!ꢀꢅꢉꢄꢋꢅꢝꢀꢅꢋꢕꢅꢄꢕꢏꢅꢃꢄꢖꢊꢈꢋꢌꢅꢑꢕꢊꢋꢅꢎꢊꢉꢇꢘꢅꢕꢐꢅ#ꢐꢕꢏꢐꢈꢇꢃꢕꢄꢇꢁꢅ$ꢕꢊꢋꢅꢎꢊꢉꢇꢘꢅꢕꢐꢅ#ꢐꢕꢏꢐꢈꢇꢃꢕꢄꢇꢅꢇꢘꢉꢊꢊꢅꢄꢕꢏꢅꢌꢍꢖꢌꢌꢋꢅꢁ%ꢀ%&ꢅ#ꢌꢐꢅꢇꢃꢋꢌꢁ
'ꢁ !ꢃꢑꢌꢄꢇꢃꢕꢄꢃꢄꢛꢅꢉꢄꢋꢅꢏꢕꢊꢌꢐꢉꢄꢖꢃꢄꢛꢅ#ꢌꢐꢅ(ꢚ$ꢝꢅ)ꢀ'ꢁ*$ꢁ
$ꢃꢖꢐꢕꢖꢘꢃ# -ꢌꢖꢘꢄꢕꢊꢕꢛꢒ !ꢐꢉꢗꢃꢄꢛ ꢜ%'?%'<+
© 2008 Microchip Technology Inc.
DS21455D-page 27
TC7106/A/TC7107/A
NOTES:
DS21455D-page 28
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
APPENDIX A: REVISION HISTORY
Revision D (February 2008)
The following is the list of modifications.
1. Updated Section 11.0 “Packaging Informa-
tion”.
2.
3. Added Appendix A.
4. Updated the Product Identification System
page.
Revision C (April 2006)
The following is the list of modifications:
• Undocumented Changes.
Revision B (May 2002)
The following is the list of modifications:
• Undocumented Changes.
Revision A (April 2002)
• Original Release of this Document.
© 2008 Microchip Technology Inc.
DS21455D-page 29
TC7106/A/TC7107/A
NOTES:
DS21455D-page 30
© 2008 Microchip Technology Inc.
TC7106/A/TC7107/A
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Examples:
PART NO.
Device
X
XX
XXX
a)
b)
c)
TC7106CLW:
3-3/4 A/D Converter,
44LD PLCC package.
3-3/4 A/D Converter,
40LD PDIP package.
3-3/4 A/D Converter,
44LD MQFP package,
Tape and Reel.
Temperature
Range
Package Tape &
Reel
TC7106CPL:
TC7106CKW713:
Device:
TC7106: 3-3/4 Digit A/D, with Frequency Counter and Probe
TC7106A: 3-3/4 Digit A/D, with Frequency Counter and Probe
TC7106: 3-3/4 Digit A/D, with Frequency Counter and Probe
TC7107A: 3-3/4 Digit A/D, with Frequency Counter and Probe
a)
b)
c)
TC7106ACLW:
TC7106ACPL:
3-3/4 A/D Converter,
44LD PLCC package.
3-3/4 A/D Converter,
40LD PDIP package.
3-3/4 A/D Converter,
44LD MQFP package,
Tape and Reel
Temperature Range:
Package:
C
I
=
=
0°C to +70°C
-25°C to +85°C
TC7106ACKW713:
LW
PL
KW
=
=
=
Plastic Leaded Chip Carrier (PLCC), 44-lead
Plastic DIP, (600 mil Body), 40-lead
Plastic Metric Quad Flatpack, (MQFP), 44-lead
a)
b)
c)
TC7107CLW:
TC7107CLP:
3-3/4 A/D Converter,
44LD PLCC package.
3-3/4 A/D Converter,
40LD PDIP package.
3-3/4 A/D Converter,
44LD MQFP package
Tape and Reel.
Tape & Reel:
713
=
Tape and Reel
TC7107CKW713:
a)
b)
c)
TC7107ACLW:
TC7107ACLP:
TC7107ACKW:
3-3/4 A/D Converter,
44LD PLCC package.
3-3/4 A/D Converter,
40LD PDIP package.
3-3/4 A/D Converter,
44LD MQFP package.
© 2008 Microchip Technology Inc.
DS21455D-page 31
TC7106/A/TC7107/A
NOTES:
DS21455D-page 32
© 2008 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PRO MATE, rfPIC and SmartShunt are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
FilterLab, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM,
PICDEM.net, PICtail, PIC32 logo, PowerCal, PowerInfo,
PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, UNI/O, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2008, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
© 2008 Microchip Technology Inc.
DS21455D-page 33
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-4182-8400
Fax: 91-80-4182-8422
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://support.microchip.com
Web Address:
www.microchip.com
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
China - Beijing
Tel: 86-10-8528-2100
Fax: 86-10-8528-2104
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
Boston
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Korea - Seoul
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Hsin Chu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
01/02/08
DS21455D-page 34
© 2008 Microchip Technology Inc.
相关型号:
©2020 ICPDF网 联系我们和版权申明