GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
D
Single Chip With Easy Interface Between
UART and Serial-Port Connector of an
External Modem or Other Computer
Peripheral
D
Five Drivers and Three Receivers Meet or
Exceed the Requirements of ANSI Standard
TIA/EIA-232-F and ITU Recommendation
V.28 Standards
D
Supports Data Rates up to 120 kbit/s
D
Complement to the GD75232
D
Provides Pin-to-Pin Replacement for the
Goldstar GD75323
D
Pin-Out Compatible With SN75196
D
Functional Replacement for the MC145405
DW OR N PACKAGE
(TOP VIEW)
1
V
CC
2
1DA
3
2DA
4
3DA
5
1RY
6
2RY
7
4DA
8
3RY
9
5DA
GND
10
20
19
18
17
16
15
14
13
12
11
V
DD
1DY
2DY
3DY
1RA
2RA
4DY
3RA
5DY
V
SS
description
The GD75323 combines five drivers and three receivers from the trade-standard SN75188 and SN75189
bipolar quadruple drivers and receivers, respectively . The flow-through design of the GD75323 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 GD75323 provide a rugged, low-cost solution for this
function.
The GD75323 complies with the requirements of the ANSI TIA/EIA-232-F and ITU (formerly CCITT) V.28
standards. These standards are for data interchange between a host computer and a peripheral at signal rates
up to 20 kbit/s. The switching speeds of the GD75323 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 GD75323 is characterized for operation over a temperature range of 0°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 1999, Texas Instruments Incorporated
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
logic symbol
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
†
2
1DA
3
2DA
4
3DA
5
1RY
6
2RY
7
4DA
8
3RY
9
5DA
logic diagram (positive logic)
2
3
4
5
19
18
17
16
1DY1DA
2DY2DA
3DY3DA
1RA1RY
19
18
17
16
15
14
13
12
1DY
2DY
3DY
1RA
2RA
4DY
3RA
5DY
6
7
8
9
15
14
13
12
2RA2RY
4DY4DA
3RA3RY
5DY5DA
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematic (each driver)
V
DD
Input DAx
GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
To Other Drivers
9.4 kΩ11.6 kΩ
4.2 kΩ
GND
To Other
Drivers
V
SS
Resistor values shown are nominal.
schematic (each receiver)
10.4 kΩ
To Other Drivers
9 kΩ 5 kΩ
75.8 Ω
68.5 Ω3.3 kΩ
To Other Receivers
1.66 kΩ
320 Ω
DYx Output
V
CC
RYx Output
Input RAx
Resistor values shown are nominal.
3.8 kΩ
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2 kΩ
10 kΩ
GND
To Other Receivers
3
GD75323
High-level output current, I
mA
High-level output current, I
mA
All inputs at 1.9 V
No load
mA
IDDSupply current from V
All inputs at 0.8 V
No load
mA
All inputs at 1.9 V
No load
mA
ISSSupply current from V
All inputs at 0.8 V
No load
mA
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
Supply voltage, V
Supply voltage, V
Input voltage range, V
Output voltage range, V
Low-level output current, I
Package thermal impedance, θ
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
†
Stresses beyond 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 beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltages are with respect to the network ground terminal.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
(see Note 1) 10 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
(see Note 1) 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DD
(see Note 1) –15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SS
: Driver –15 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
Receiver –30 V to 30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Driver) – 15 V to 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
(Receiver) 20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OL
(see Note 2): DW package 97°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
N package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
recommended operating conditions
MIN NOM MAX UNIT
Supply voltage
High-level input voltage, V
Low-level input voltage, V
p
p
Operating free-air temperature,T
IH
IL
OH
OL
V
DD
V
SS
V
CC
Driver 1.9 V
Driver 0.8 V
Driver –6
Receiver –0.5
Driver 6
Receiver 16
A
7.5 9 13.5
–7.5 –9 –13.5
4.5 5 5.5
0 70 °C
V
†
supply currents over operating free-air temperature range
PARAMETER TEST CONDITIONS MIN MAX UNIT
I
4
Supply current from V
CC
pp
pp
p
DD
p
p
SS
p
VCC= 5 V, All inputs at 5 V, No load 20 mA
CC
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
,
,
,
,
VDD = 9 V, VSS = –9 V 25
VDD = 12 V, VSS = –12 V 32
VDD = 9 V, VSS = –9 V 7.5
VDD = 12 V, VSS = –12 V 9.5
VDD = 9 V, VSS = –9 V –25
VDD = 12 V, VSS = –12 V –32
VDD = 9 V, VSS = –9 V –5.3
VDD = 12 V, VSS = –12 V –5.3
L
,
L
,
t
Transition time, lo
high-level output
t
g(
GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
DRIVER SECTION
electrical characteristics over operating free-air temperature range, V
= 5 V (unless otherwise noted)
V
CC
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
OH
V
OL
I
IH
I
IL
I
OS(H)
I
OS(L)
r
o
NOTES: 3. The algebraic convention, where the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic
High-level output voltage VIL = 0.8 V, RL = 3 kΩ, See Figure 1 6 7.5 V
Low-level output voltage (see Note 3) VIH = 1.9 V, RL = 3 kΩ, See Figure 1 –7.5 –6 V
High-level input current VI = 5 V, See Figure 2 10 µA
Low-level input current VI = 0, See Figure 2 –1.6 mA
High-level short-circuit output current
(see Note 4)
Low-level short-circuit output current VIH = 2 V, VO = 0, See Figure 1 4.5 9 19 mA
Output resistance (see Note 5) VCC = VDD = VSS = 0, VO = –2 V to 2 V 300 Ω
levels only, e.g., if –10 V is maximum, the typical value is a more negative voltage.
4. Output short-circuit conditions must maintain the total power dissipation below absolute maximum ratings.
5. Test conditions are those specified by TIA/EIA-232-F and as listed above.
VIL = 0.8 V, VO = 0, See Figure 1 –4.5 –9 –19.5 mA
= 9 V, VSS = –9 V,
DD
switching characteristics, VDD = 12 V, VSS = –12 V, VCC = 5 V ±10%, TA = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
t
PHL
TLH
THL
NOTES: 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
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
w- to
Transition time, high- to low-level output (see
Note 5)
or low.
7. 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.
p
R
= 3 kΩ to 7 kΩ, C
See Figure 3
RL = 3 kΩ to 7 kΩ,
See Figure 3
RL = 3 kΩ to 7 kΩ,
See Figure 3 and Note 6
RL = 3 kΩ to 7 kΩ,
See Figure 3
RL = 3 kΩ to 7 kΩ,
See Figure 3 and Note 7
= 15 pF,
CL = 15 pF,
CL = 2500 pF,
CL = 15 pF,
CL = 2500 pF,
315 500 ns
75 175 ns
60 100 ns
1.7 2.5 µs
40 75 ns
1.5 2.5 µs
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
GD75323
V
Positive-going input threshold voltage
See Figure 5
V
See Figure 5
VOHHigh-level output voltage
I
mA
V
IIHHigh-level input current
mA
IILLow-level input current
mA
L
L
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
RECEIVER SECTION
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN
IT+
V
IT–
V
hys
V
OL
I
OS
†
All typical values are at TA = 25°C, VCC = 5 V, VDD = 9 V, and VSS = –9 V .
Negative-going input threshold voltage
Input hysteresis voltage (V
Low-level output voltage IOL = 10 mA, VI = 3 V 0.2 0.45 V
Short-circuit output current See Figure 4 –3.4 –12 mA
p
– V
IT–
)
OH
VI = 25 V, See Figure 5 3.6 8.3
VI = 3 V, See Figure 5 0.43
VI = –25 V, See Figure 5 –3.6 –8.3
VI = –3 V , See Figure 5 –0.43
IT+
p
p
p
= –0.5
TA = 25°C 1.75 1.9 2.3
TA = 0°C to 70 °C 1.55 2.3
0.75 0.97 1.25
0.5
VIH = 0.75 V 2.6 4 5
Inputs open 2.6
TYP
Ĕ
MAX UNIT
switching characteristics, VCC = 5 V, VDD = 12 V, VSS = –12 V, TA = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
t
PHL
t
TLH
t
THL
Propagation delay time, low- to high-level output 107 500 ns
Propagation delay time, high- to low-level output
Transition time, low- to high-level output
Transition time, high- to low-level output 16 60 ns
CL = 50 pF, RL = 5 kΩ,
See Figure 6
PARAMETER MEASUREMENT INFORMATION
I
OS(L)
V
DD
V
CC
V
I
V
O
V
SS
–I
OS(H)
VDD or GND
VSS or GND
RL = 3 kΩ
I
IH
V
I
–I
IL
V
I
42 150 ns
175 525 ns
V
DD
V
CC
V
SS
Figure 1. Driver Test Circuit
for V
OH
6
, VOL, I
OS(H)
, and I
OS(L
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Figure 2. Driver Test Circuit for IIH and I
IL
Pulse
Generator
See Note B
Input
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
PARAMETER MEASUREMENT INFORMATION
t
THL
1.5 V
90%
t
50%
PHL
10%
V
DD
V
CC
V
O
C
R
L
V
SS
TEST CIRCUIT VOLTAGE WAVEFORMS
L
(see Note A)
Input
Output
1.5 V
10%
50%
GD75323
t
PLH
90%
t
TLH
3 V
0 V
V
V
OH
OL
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns.
Figure 3. Driver Test Circuit and Voltage Waveforms
V
DD
V
CC
V
I
V
SS
–I
OS
Figure 4. Receiver Test Circuit for I
V
DD
Input
Pulse
Generator
See Note B
V
CC
V
O
C
R
L
V
SS
L
(see Note A)
OS
Input
Output
VIT, V
t
THL
50%
90%
V
DD
V
CC
I
V
OL
V
SS
Figure 5. Receiver Test Circuit
, VOH, and V
for V
IT
50%
t
PHL
50%
10%
10%
50%
I
OL
OL
V
OH
t
PLH
90%
t
TLH
–I
5 V
–5 V
V
OH
V
OL
OH
TEST CIRCUIT VOLTAGE WA VEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns.
Figure 6. Receiver Propagation and Transition Times
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
7
GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
TYPICAL CHARACTERISTICS
DRIVER SECTION
VOLTAGE-TRANSFER CHARACTERISTICS
12
VDD = 12 V, VSS = –12 V
9
VDD = 9 V, VSS = –9 V
6
VDD = 6 V, VSS = –6 V
3
20
16
12
8
4
VDD = 9 V
VSS = –9 V
TA = 25°C
OUTPUT CURRENT
vs
OUTPUT VOLTAGE
VOL(VI = 1.9 V)
0
–3
O
V
VO – Output Voltage – V
–6
–9
–12
0
12
9
6
3
RL = 3 kΩ
TA = 25°C
VI – Input Voltage – V
Figure 7
SHORT-CIRCUIT OUTPUT CURRENT
vs
FREE-AIR TEMPERATURE
I
(VI = 1.9 V)
OS(L)
0
–4
–8
O
I
IO – Output Current – mA
–12
–16
1.81.61.41.210.80.60.40.2
2
–20
–16
VOH(VI = 0.8 V)
VO – Output Voltage – V
3-kΩ
Load Line
12840–4–8–12
16
Figure 8
SLEW RATE
vs
LOAD CAPACITANCE
1000
µs
100
VDD = 9 V
VSS = – 9 V
RL = 3 kΩ
TA = 25°C
0
VDD = 9 V
VSS = –9 V
–3
VO = 0
–6
I
OS
–9
IOS – Short-Circuit Output Current – mA
I
–12
0
TA – Free-Air Temperature – ° C
OS(H)
Figure 9
8
(VI = 0.8 V)
10
SR – Slew Rate – V/
1
70605040302010
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
10
1000100
CL – Load Capacitance – pF
Figure 10
10000
GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
TYPICAL CHARACTERISTICS
RECEIVER SECTION
2.4
2.2
2
1.8
1.6
1.4
1.2
– Input Threshold Voltage – V
IT
V
0.8
0.6
0.4
INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
VIT
+
V
IT–
TA – Free-Air Temperature – ° C
Figure 11
INPUT THRESHOLD VOLTAGE
vs
SUPPLY VOLTAGE
2
1.8
1.6
1.4
1.2
1
0.8
0.6
– Input Threshold Voltage – V
IT
V
0.4
0.2
706050403020100
0
2
VCC – Supply Voltage – V
V
IT+
V
IT–
9876543
10
Figure 12
NOISE REJECTION
6
5
4
3
Amplitude – V
NOTE A: This figure shows the maximum amplitude of a
CC = 12 pF
2
CC = 100 pF
1
0
10
40 100 400 1000 4000
tw – Pulse Duration – ns
positive-going pulse that, starting from 0 V, does not
cause a change of the output level.
VCC = 5 V
TA = 25°C
See Note A
CC = 300 pF
CC = 500 pF
10000
Figure 13
16
14
12
10
8
6
– Maximum Supply Voltage – V
4
DD
V
2
0
0
MAXIMUM SUPPLY VOLTAGE
vs
FREE-AIR TEMPERATURE
RL ≥ 3 kΩ (from each output to GND)
70605040302010
TA – Free-Air Temperature – ° C
Figure 14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
9
GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
APPLICATION INFORMATION
Diodes placed in series with the V
outputs are shorted to V
or VSS, and the power supplies are at low and provide low-impedance paths to
DD
and VSS leads protect the GD75323 in the fault condition in which the device
DD
ground (see Figure 15).
V
DD
V
Output
±15 V
GD75323 GD75323
DD
V
SS
V
SS
Figure 15. Power-Supply Protection to Meet Power-Off Fault Conditions of TIA/EIA-232-F
SS
11
12
13
14
15
16
17
18
19
20
–12 V
RI
DTR
CTS
TX
RTS
RX
DSR
DCD
12 V
C2
†
C5
†
C4
†
C3
†
†
C1
TL16C450
ACE
RI
DTR
CTS
SO
RTS
SI
DSR
DCD
43
37
40
13
36
11
41
42
5 V
10
GND
9
5DA
8
3RY
7
4DA
6
2RY
5
1RY
4
3DA
3
2DA
2
1DA
1
V
CC
GD75323
V
5DY
3RA
4DY
2RA
1RA
3DY
2DY
1DY
V
DD
TIA/EIA-232-F
DB9S
Connector
5
9
6
1
†
See Figure 10 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 30 V/µs. The value of the loading capacitors required depends upon the line length and desired slew rate,
but is typically 330 pF.
NOTE C: To use the receivers only, VDD and VSS both must be powered or tied to ground.
Figure 16. Typical Connection
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty . Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERT AIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICA TIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERST OOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1999, Texas Instruments Incorporated
Loading...