75323(20SOP) [UTC]
Line Driver/Receiver, 5 Driver, BIPolar, PDSO20;
| 型号： | 75323(20SOP) |
| 厂家： | 
Unisonic Technologies |
| 描述： | Line Driver/Receiver, 5 Driver, BIPolar, PDSO20 驱动 光电二极管 驱动器 |
| 文件： | 总10页 (文件大小：172K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC 75323
LINEAR INTEGRATED CIRCUIT
MULTIPLE RS-232 DRIVERS AND
RECEIVERS
DESCRIPTION
The UTC 75323 combines five drivers and three
receivers. The flow-through design of the UTC 75323
decreases the part count, reduces the board space
required, and allows easy interconnection of the UART
and serial-port connector. The all-bipolar circuits and
processing of the UTC 75323 provide a rugged,
low-cost solution for this function.
The UTC 75323 complies with the requirements of
the ANSI TIA/EIA-232-Fand ITU (formerly CCITT)
V.28 standards. These standards are for data
SOP-20
DIP-20
interchange between
a
host computer and
a
peripheral at signal rates up to 20 Kbit/s. The
switching speeds of the UTC 75323 are fast enough to
support rates up to 120 kbit/s with lower capacitive
loads (shorter cables). Interoperability at the higher
signaling rates cannot be assured unless the designer
has design control of the cable and the interface
circuits at both ends. For interoperability at signaling
rates up to 120 kbit/s, use of ANSI Standard
TIA/EIA-423-B
and
TIA/EIA-422-B
and
ITU
Recommendations V.10 and V.11 are recommended.
The UTC 75323 is characterized for operation over a
temperature range of 0℃ to 70℃.
FEATURES
*Single Chip With Easy Interface Between UART and
Serial-Port Connector of an External Modem or Other
Computer Peripheral
*Five Drivers and Three Receivers Meet or Exceed the
Requirements of ANSI Standard TIA/EIA-232-F and
ITU Recommendation V.28 Standards.
*Supports Data Rates up to 120 kbit/s.
*Complement to the UTC 75232.
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
1
2
3
Vcc
1DA
2DA
3DA
1RY
2RY
4DA
3RY
5DA
GND
VDD
1DY
2DY
20
19
18
4
5
6
7
8
17 3DY
1RA
16
15 2RA
14 4DY
13 3RA
12 5DY
11 Vss
9
10
LOGIC SYMBOL *
LOGIC DIAGRAM ( POSITIVE LOGIC )
2
3
19
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
1DA
1DY
2DY
1DA
1DY
2DY
3DY
1RA
2RA
4DY
18
17
16
15
14
13
12
2DA
3DA
1RY
2DA
3DA
1RY
4
5
6
3DY
1RA
2RY
4DA
3RY
5DA
2RY
4DA
3RY
5DA
2RA
4DY
3RA
7
8
9
3RA
5DY
5DY
* This symbol is in accordance with ANSI/IEEE Std
91-1984 and IEC Publication 617-12.
UTC UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
SCHEMATIC (EACH DRIVER)
To Other Drivers
VDD
9.4kΩ
11.6kΩ
Input DAx
75.8Ω
320Ω
DYx Output
4.2kΩ
GND
Vss
To Other
Drivers
10.4kΩ
3.3kΩ
68.5Ω
To Other Drivers
Resistor values shown are nominal.
SCHEMATIC (EACH RECEIVER)
To Other Receivers
Vcc
1.66kΩ
9kΩ
2kΩ
5kΩ
RYx Output
3.8kΩ
Input RAx
10kΩ
GND
To Other Receivers
Resistor values shown are nominal.
UTC UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
Supply voltage (see Note 1)
Supply voltage (see Note 1)
Supply voltage (see Note 1)
Input voltage range: Driver
Receiver
Output voltage range, (Driver)
Low-level output current (Receiver)
Package thermal impedance
SYMBOL
RATINGS
10
UNIT
Vcc
VDD
Vss
V
V
V
15
-15
-15 ~ 7
-30 ~ 30
-15 ~ 15
VI
V
Vo
IOL
V
mA
20
θJA
SOP-20
97
67
°C/W
DIP-20
Lead temperature 1.6mm(1/6 inch) from case
for 10 seconds
Tlead
Tstg
260
°C
°C
Storage temperature range
-65 ~ 150
note: 1. All voltages are with respect to the network ground terminal.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
VDD
MIN
7.5
TYP
MAX
13.5
-13.5
5.5
UNIT
V
9
-9
5
Supply voltage
Vss
-7.5
4.5
Vcc
High-level input voltage
Low-level input voltage
High-level output current
Driver
VIH
1.9
V
V
Driver
VIL
0.8
-6
Driver
IOH
mA
Receiver
Driver
-0.5
6
High-level output current,
IOL
Ta
mA
Receiver
16
70
Operating free-air temperature
0
℃
SUPPLY CURRENTS OVER OPERATING FREE-AIR TEMPERATURE RANGE
PARAMETER
SYMBOL
TEST CONDITIONS
All inputs at 1.9V, No load VDD=9V, Vss=-9V
VDD=12V, Vss=-12V
MIN
MAX UNIT
Supply current from VDD
25
mA
32
IDD
All inputs at 0.8V, No load VDD=9V, Vss=-9V
VDD=12V, Vss=-12V
7.5
mA
9.5
-25
mA
-32
Supply current from Vss
Suppy current from Vcc
All inputs at 1.9V, No load VDD=9V, Vss=-9V
VDD=12V, Vss=-12V
Iss
Icc
All inputs at 0.8V, No load VDD=9V, Vss=-9V
VDD=12V, Vss=-12V
-5.3
-5.3
mA
Vcc=5V,All inputs at 5V, No load
20
mA
UTC UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS OVER OPERATING FREE-AIR TEMPERATURE
RANGE,VDD=9V,Vss=-9V,Vcc=5V (UNLESS OTHERWISE NOTED)
PARAMETER
High-level output voltage
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
VOH
VOL
IIH
VIL=0.8V,RL=3kΩ (See Figure 1)
VIH=1.9V,RL=3kΩ (See Figure 1)
VI=5V
VI=0
6
7.5
V
V
Low-level output voltage(see Note 2)
High-level Input current
-7.5
-6
10
(See Figure 2)
(See Figure 2)
μA
Low-level input current
IIL
-1.6
mA
High-level short-circuit output current
(see Note 3)
VIL=0.8V,Vo=0
VIH=2V,Vo=0
(See Figure 1)
(See Figure 1)
IOS(H)
-4.5
-9
9
-19.5 mA
Low-level short-circuit output current
IOS(L)
ro
4.5
300
19
mA
Ω
Output resistance (see Note 4)
Vcc=VDD=Vss=0,Vo=-2V to 2V
Notes: 2.The algebraic convention, where the more positive(less negative) limit is designated as maximum, is used
in this data sheet for logic levels only,e.g.,if-10V is maximum, the typical value is a more negative voltage.
3.Output short-circuit conditions must maintain the total power dissipation below absolute maximum ratings.
4.Test conditions are those specified by TIA/EIA-232-F and as listed above.
SWITCHING CHARACTERISTICS (Ta=25℃,VDD=12V,Vss=-12V,Vcc=5V±10%)
PARAMETER
Propagation delay time, low- to
high-level output
SYMBOL
tPLH
TEST CONDITIONS
RL=3kΩ to 7kΩ, CL=15pF
(See Figure 3)
MIN TYP MAX UNIT
315
500
175
100
ns
Propagation delay time, high-to
low-level output
tPHL
75
RL=3kΩ to 7kΩ, CL=15pF
(See Figure 3)
60
ns
μs
ns
TTLH Transition time, low-to high-level
output
tTLH
RL=3kΩ to 7kΩ, CL=2500pF
(See Figure 3 and Note 5)
RL=3kΩ to 7kΩ, CL=15pF
(See Figure 3)
1.7
40
2.5
75
Transition time, high-to low-level output
tTHL
RL=3kΩ to 7kΩ, CL=2500pF
(See Figure 3 and Note 6)
1.5
2.5
μs
Note: 5. Measured between-3-V and 3-V points of the output waveform (TIA/EIA-232-F conditions),all unused inputs
are tied either high or low.
6. Measured between 3-V and –3-V points of the output waveform (TIA/EIA-232-F conditions),all unused inputs
are tied either high or low
ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING
CONDITIONS (UNLESS OTHERWISE NOTED)
PARAMETER
SYMBOL
VIT+
TEST CONDITIONS
MIN TYP* MAX UNIT
Ta=25℃
Positive-going input threshold voltage
See Figure5
1.75
1.55
1.9
2.3
2.3
Ta=0℃ to 70℃
V
Negative-going input threshold voltage
Input hysteresis voltage(VIT+ - VIT-)
High-level output voltage
VIT-
Vhys
See Figure5
0.75 0.97 1.25
0.5
VIH=0.75V
Inputs open
2.6
2.6
4
5
VOH
IOH=-0.5mA
V
Low-level output voltage
High-level input current
VOL
IIH
IOL=10mA,VI=3V
VI=25V.
VI=3V
VI=-25V
VI=-3V
0.2
0.45
8.3
V
dB
mA
mA
mA
mA
3.6
0.43
-3.6
-8.3
-12
Low-level input current
IIL
-0.43
Short-circuit output current
* All typical values are at Ta=25℃,Vcc=5V,VDD=9V,Vss=-9V
Ios
See Figure 4
-3.4
UTC UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
SWITCHING CHARACTERISTICS (Ta=25℃,VCC=5V,VDD=12V,VSS= -12V)
PARAMETER
SYMBOL
tPLH
TEST CONDITIONS
CL=50pF,RL=5kΩ
See Figure 6
MIN TYP MAX UNIT
Propagation delay time, low-to high-level output
Propagation delay time, high- to low-level output
Transition time, low-to high-level output
Transition time, high- to low-level output
107
42
500
150
525
60
ns
ns
ns
ns
tPHL
tTLH
tTHL
175
16
PARAMETER MEASUREMENT INFORMATION
IOS(L)
VDD
Vcc
VDD or GND
Vss or GND
VDD
Vcc
-IOS(H)
IIH
VI
VI
VI
-IIL
Vo
RL=3kΩ
Vss
Vss
Figure 1. Driver Test Circuit
for VOH,VOL,IOS(H),and IOS(L)
Figure 2. Driver Test Circuit for IIH and IIL
3V
VDD
Vcc
Input
1.5V
1.5V
Input
0V
pulse
tPHL
tPLH
Vo
Generator
RL
VOH
VOL
CL
90%
tTHL
90%
See Note B
( see Note A )
50%
10%
50%
10%
Output
Vss
TEST CIRCUIT
tTLH
VOLTAGE WAVEFORMS
NOTES:A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics(t
W
=25μs,PRR=20kHz,Zo=50Ω,tr=tf<50ns)
Figure 3. Driver Test Circuit and Voltage Waveforms
VDD
Vcc
VDD
Vcc
-IOS
-IOH
VIT,VI
VI
VOH
IOL
VOL
Vss
Vss
Figure 4. Receiver Test Circuit for Ios
Figure 5. Receiver Test Circuit for VIT,VOH,and VOL
UTC UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
5V
VDD
Vcc
Input
50%
50%
Input
-5V
tPHL
tPLH
pulse
Vo
Generator
VOH
VOL
90%
tTHL
90%
RL
50%
10%
CL
See Note B
Vss
50%
10%
Output
(see Note A)
tTLH
VOLTAGE WAVEFORMS
TEST CIRCUIT
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics(t =25μs,PRR=20kHz,Zo=50Ω,tr=tf<50ns)
W
Figure 6. Receive Propagation and Transition Times
TYPICAL CHARACTERISTICS DRIVER SECTION
VOLTAGE-TRANSFER CHARACTERISTICS
OUTPUT CURRENT VS OUTPUT VOLTAGE
12
9
20
16
12
8
VDD=12V,Vss=-12V
VDD=9V,Vss=-9V
VDD=9V
Vss=-9V
TA=25°C
6
VDD=6V,Vss=-6V
3
4
0
0
-4
-8
-3
-6
-9
-12
3-kΩLoad
Line
-12
-16
-20
VOH(VI=0.8V)
RL=3kΩ
TA=25°C
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Input Voltage, VI (V)
-16 -12 -8 -4
0
4
8
12 16
Output Voltage, Vo (V)
SHORT-CIRCUIT OUTPUT CURRENT
VS FREE-AIR TEMPERATURE
SLEW RATE VS LOAD CAPACITANCE
12
1000
100
VDD=9V
Vss=-9V
RL=3kΩ
TA=25°C
9
6
Ios(L) (VI=1.9V)
3
VDD=9V
Vss=-9V
Vo=0
0
-3
-6
-9
-12
10
Ios(H) (VI=0.8V)
1
0
10
20 30 40 50 60 70
10
100
1000
10000
Free-Air Temperature, TA (°C)
Load Capacitance, CL (pF)
UTC UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
SHORT-CIRCUIT OUTPUT CURRENT
VS FREE-AIR TEMPERATURE
INPUT THRESHOLD VOLTAGE VS SUPPLY VOLTAGE
2
2.4
2.2
2
1.8
1.6
1.4
VIT+
VIT+
VIT-
1.8
1.6
1.4
1.2
1.2
1
0.8
0.6
VIT-
1.0
0.8
0.6
0.4
0.4
0.2
0
0
10
20 30 40 50 60 70
Free-Air Temperature, Ta (°C)
2
3
4
5
7
8
9
10
6
Supply Voltage, Vcc (V)
MAXIMUM SUPPLY VOLTAGE VS FREE-AIR
TEMPERATURE
NOISE REJECTION
16
6
VCC=5V
TA=25°C
See Note A
14
12
10
5
4
Cc=300pF
Cc=500pF
8
6
4
2
0
3
Cc=12pF
2
1
0
Cc=100pF
RL≧3kΩ(from each output to GND)
400
40
0
10
20
30
40
50
60 70
10
100
1000
4000 10000
Free-Air Temperature, Ta(°C)
Pulse Duration, tw (ns)
NOTE A: This figure shows the maximum amplitude of a positive-going
pulse that, starting from 0V, does not cause a change of the output
level.
UTC UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION
Diodes placed in series with the VDD and Vss leads protect the UTC GD75323 in the fault condition in which the
device output are shorted to VDD or Vss, and the Power supplies are at low and provide low-impedance paths to
ground(see Figure 15)
VDD
VDD
Output
±15V
75323
75323
Vss
Vss
Figure 7. Power-Supply Protection to Meet Power-Off Fault Condition of TIA/EIA-232-F
TIA/EIA-232-F
DB9S
CONNECTOR
-12V
TL16C450
ACE
10
9
8
11
12
5
GND
5DA
3RY
4DA
2RY
1RY
3DA
2DA
1DA
Vcc
Vss
5DY
3RA
4DY
2RA
1RA
3DY
2DY
1DY
VDD
43
37
40
13
36
11
41
42
RI
9
6
RI
13
14
15
16
17
18
19
20
DTR
CTS
TX
RTS
RX
C5*
C4*
DTR
CTS
SO
RTS
SI
7
6
5
4
3
2
1
UTC
75323
DSR
DCD
C3*
C1*
DSR
C2*
DCD
1
12V
5V
*See Figure10 to select the correct values for the loading capacitors(C1,C2,C3,C4 and C5),which may be required
to meet the RS-232 maximum slew-rate requirement of 30V/us.The value of the loading capacitors res required
depends upon the line length and desired slew rate,but is typically 330pF.
NOTE C:To use the receivers only,VDD and Vss both must be powered or tied to ground.
Figure 8. Typical Connection
UTC UNISONIC TECHNOLOGIES CO., LTD.
9
QW-R113-007,A
UTC 75323
LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC UNISONIC TECHNOLOGIES CO., LTD.
10
QW-R113-007,A
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