PI74FCT161ATQ [ETC]
Synchronous Up Counter ; 同步加计数器\n
| 型号： | PI74FCT161ATQ |
| 厂家： | 
ETC |
| 描述： | Synchronous Up Counter
|
| 文件： | 总6页 (文件大小：48K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74FCT161T/163T
(25Ω Series) PI74FCT2161T/2163T
High Speed CMOS Synchronous
4-Bit Binary Counters
Product Features
Product Description
• PI74FCT161/163/2161/2163T are pin-compatible with
bipolar FASTTM Series at a higher speed and lower power
consumption
• 25Ωseries resistor on all outputs (FCT2XXX only)
• TTL input and output levels
• Low ground bounce outputs (25Ω series only)
• Extremely low static power
• Hysteresis on all inputs
Pericom Semiconductor’s PI74FCT series of logic circuits are
producedintheCompany’sadvanced0.6micronCMOStechnology,
achievingindustryleadingspeedgrades.AllPI74FCT2XXXdevices
have a built-in 25Ω series resistor on all outputs to reduce noise
owing to reflections, thus eliminating an external terminating
resistor.
The PI74FCT161T and PI74FCT163 are high speed CMOS
synchronous presettable 4-bit binary counters. The 161 has an
asynchronous clear, the 163 has a clocked synchronous clear. Data
is preloaded or the counters count on the rising edge of the clock.
Countenableinputsandterminalcountoutputsallowthesecounters
to be cascaded without loss of speed. Preset inputs override count
inputs, and clear inputs override both preset and count inputs. All
inputs have clamp diodes for undershoot noise suppression. All
outputs have ground bounce suppression.
• Industrial operating temperature range: -40°C to + 85°C
• Packages available:
- 16-pin 150 mil wide plastic QSOP (Q)
- 16-pin 150 mil wide plastic SOIC (W)
- 16-pin 300 mil wide plastic SOIC (S)
Functional Block Diagram
Pin Configurations
CET
TC
= FF
25 Ohm
MR
CP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
TC
(FCT2XXX Only)
163 Only
D0
Q0
Cin Q+Cin
CEP
Q3-Q0
D1
Q1
25 Ohm
(FCT2XXX Only)
D2
Q2
D3-C0
PE
D3
Q3
V
CEP
GND
CET
PE
MR
CP
161 Only
PS2083B
10/08/01
1
PI74FCT161T/163T
(25Ω SERIES) PI74FCT2161T/2163T
4-BIT BINARY COUNTERS
PinDescription
Pin Name
I/O
I
Description
Data Inputs
D3-D0
Q3-Q0
CP
O
I
Data Outputs
Clock
MR
I
Master Reset
CEP
CET
TC
I
Counter Enable
Count and TC Enable
Terminal Count
Parallel Load Enable
I
O
I
PE
FunctionTable
Inputs
Outputs
Q3-Q0
161
Function
MR PE
CP CEP CET
DI
X
163
TC
L
L
L
X
X
L
X
↑
X
X
X
H
L
X
X
X
H
X
L
L
Clear 161
X
L
L
Clear 163
Load Data
Count
H
H
H
H
H
H
H
↑
D3-D0 D3-D0 D3-D0
X
X
X
X
H
L
H
H
H
H
H
H
↑
X
X
X
X
X
X
Q+1
Q
Q+1
Q
↑
Count Inhibit P
Count Inhibit T
Count = 1111
Count ≠ 1111
TC Inhibit
↑
X
X
X
X
Q
Q
X
X
X
H
H
L
F
F
0-E
X
0-E
X
L
Notes:
1. H = HighVoltageLevel
L = LowVoltgeLevel
X = Don’t Care
Z = HighImpedance
↑ = Low to High
PS2083B
10/08/01
2
PI74FCT161T/163T
(25Ω SERIES) PI74FCT2161T/2163T
4-BIT BINARY COUNTERS
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................................. –65°C to +150°C
Ambient Temperature with Power Applied .................................. -40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... –0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ....... –0.5V to +7.0V
DC Input Voltage ......................................................................... –0.5V to +7.0V
DC Output Current .................................................................................... 120mA
Power Dissipation ......................................................................................... 0.5W
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational sections
of this specification is not implied. Exposure to
absolute maximum rating conditionsforextended
periodsmayaffectreliability.
DC Electrical Characteristics (Over the Operating Range, TA = -40°C, Vcc = 5.0V ±5%)
Parameters
Description
Test Conditions(1)
Min. Typ(2) Max. Units
V
OH
Output HIGH Voltage
Output LOW Current
Output LOW Current
Input HIGH Voltage
Input LOW Voltage
V
V
V
CC = MIN., VIN = VIH or VIL
I
OH = -15.0mA
OL = 48mA
OL = 12mA (25 Ohm Series)
2.4
3.0
0.3
0.3
V
V
V
OL
OL
CC = MIN., VIN = VIH or VIL
CC = MIN., VIN = VIH or VIL
I
0.50
0.50
V
I
V
V
IH
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
2.0
V
V
IL
0.8
1
µA
mA
µA
µA
µA
µA
µA
mA
mV
IIH
Input HIGH Current Vcc = Max.
VIN = VCC
IIL
Input LOW Current
High Impedance
Output Current
Vcc = Max.
Vcc = Max.
VIN = GND
-1
IOZH
V
OUT = 2.7V
OUT = 0.5V
1
IOZL
V
-1
V
IK
Clamp Diode Voltage Vcc = Min., IIN = -18mA
Power Down Disable Vcc = GND., VOUT = 4.5V
Short Circuit Current Vcc = Max.(3), VOUT = GND
Input Hysteresis
-0.7
-
-1.2
100
IOFF
-
IOS
-60
-120
200
V
H
°
Capacitance (TA = 25 C, f = 1 MHz)
Parameters(4)
Description
Test Conditions
Typ.
Max.
10
Units
pF
C
IN
Input Capacitance
Output Capacitance
VIN = 0V
6
8
C
OUT
VOUT = 0V
12
pF
Notes:
1. For Max. or Min. conditions, use the appropriate values specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is determined by device characterization but is not production tested.
PS2083B
10/08/01
3
PI74FCT161T/163T
(25Ω SERIES) PI74FCT2161T/2163T
4-BIT BINARY COUNTERS
Power Supply Characteristics
(1)
(2)
Parameters
Description
Test Conditions
Min.
Typ
Max.
Units
Quiescent Power
Supply Current
V
V
IN ≥ VHC
IN ≥ VLC
;
;
I
Vcc =Max.
Vcc =Max
0.1
500
µA
CC
Supply Current per
Input @ TTL HIGH
(3)
∆
VIN = 3.4V
0.5
2.5
mA
CCD
Vcc =Max., Outputs Open
OE = GND
T/R = GND or VCC
Supply Current per
Input per MHz
V
IN = VCC
;
mA/
MHz
I
0.15
0.25
CCD
(4)
VIN = GND
One Bit Toggling, 50% Duty Cycle
V
IN = VCC;
(5)
2.0
2.3
3.5
5.5
4.0
Vcc =Max., Outputs Open
VIN = GND
f = 10 MHz, 50% Duty CycLE
I
T/R = OE = GND
One Bit Toggling
VIN = 3.4V
(5)
5.0
VIN = GND
Total Power
Supply Current
I
C
mA
(6)
VIN = VCC;
(5)
6.5
Vcc =Max., Outputs Open
VIN = GND
f = 10 MHz, 50% Duty Cycle
I
T/R = OE = GND
Eight Bit Toggling
VIN = 3.4V
(5)
14.5
VIN = GND
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. IC =IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current
∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
PS2083B
10/08/01
4
PI74FCT161T/163T
(25Ω SERIES) PI74FCT2161T/2163T
4-BIT BINARY COUNTERS
Switching Characteristics (Over Operating Range)
161T, 163T,
2161T, 2163T
161AT, 163AT,
2161AT, 2163AT
161CT, 163CT
(1)
Symbol
Description
Conditions
C = 50pF
Min.
Max.
Min.
Max.
Min.
Max.
Units
Propagation Delay
CP to Q (161/3)
L
t
2.0
9.5
2.0
6.2
2.0
5.6
ns
CPQ
R = 500 Ohm
L
I
Propagation Delay
C = 50pF
L
t
2.0
2.0
2.0
2.0
1.5
1.5
9.5
13
2.0
2.0
2.0
2.0
1.5
1.5
6.2
8.5
9.1
9.8
5.5
7.5
ns
ns
ns
ns
ns
ns
CPQ
CP to Q (2161/3) R = 500 Ohm
I
L
Propagation Delay
C = 50pF
L
R = 500 Ohm
L
t
2.0
7.8
MRQ
MR to Q (161)
I
Propagation Delay
C = 50pF
L
R = 500 Ohm
L
t
14
MRQ
MR to Q (2161)
I
Propagation Delay
CP to TC
C = 50pF
L
R = 500 Ohm
L
t
15
2.0
1.5
1.5
8.8
5.0
6.8
CPTC
Propagation Delay
CET to TC
C = 50pF
L
R = 500 Ohm
L
t
8.5
11.5
CETC
Propagation Delay
MR to TC
C = 50pF
L
R = 500 Ohm
L
t
MRTC
Notes:
1. Minimums Test Circuit and Waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. PI74FCT2161 is available only by minimum special order.
PS2083B
10/08/01
5
PI74FCT161T/163T
(25Ω SERIES) PI74FCT2161T/2163T
4-BIT BINARY COUNTERS
Timing Characteristics (Over Operating Range)
161, 163,
2161, 2163
161A, 163A,
2161A ,2163A
161C, 163C,
2161C ,2163C
Symbol
Description
Conditions
Units
Min
Max
Min
Max
Min
Max
Data Setup Time
DI to CP
tS
5.0
1.5
11.5
0
4.0
3.5
Data Hold Time
DI to CP
tH
1.5
9.5
0
1.5
8.5
0
Count Enab. Setup Time
CEP, CET to CP
tCH
Count Enable Hold Time
CEP, CET to CP
tH
tMRS
tPES
Control Setup Time
MR, PE to CP
CL = 50pF
RL = 500 Ohm
11.5
1.5
5.0
5.0
6.0
9.5
1.5
4.0
4.0
5.0
8.5
1.5
3.0
3.0
4.0
ns
tMRH
tPEH
Control Hold Time
MR, PE to CP
Clock Pulse Width(1)
HIGH or LOW
tCPW
tMRW
tMRW
MR Reset Pulse Width(1)
(161, 2161)
Reset Recovery Time(1)
MR to CP, (161,2161)
Notes:
1. See Test Circuit and Waveforms
PericomSemiconductorCorporation
2380BeringDrive • SanJose, CA95131•1-800-435-2336 • Fax(408)435-1100• http://www.pericom.com
PS2083B
10/08/01
6
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