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ST3232EBD

P1-P3P4-P6P7-P9P10-P12
1/11May 2002
■ ESD PROTECTIO FOR RS-232 I/O PINS
±15KV HUMAN BODY MODEL
±8KV IEC 1000-4-2 CONTACT DISCHARGE
■ 300µA SUPPLY CURRENT
■ 250Kbps MINIMUM GUARENTEED DATA
RATE
■ 6V/µs MINIMUM GUARANTEED SLEW RATE
■ MEET EIA/TIA-232 SPECIFICATIONS DOWN
TO 3V
■ AVAILABLE IN DIP-16, SO-16, SO-16 LARGE
AND TSSOP16
DESCRIPTION
The ST3232E is a 3V powered EIA/TIA-232 and
V.28/V.24 communication interfaces with low
power requirements, high data-rate capabilities
and enhanced electrostatic discharge (ESD)
protection to ±8kV using IEC1000-4-2 Contact
Discharge and ±15kV using the Human Body
Model. ST3232E has a proprietary low dropout
transmitter output stage providing true RS-232
performance from 3 to 5V supplies witha a dual
charge pump. The charge pump requires only four
small 0.1µF standard external capacitors for
operations from 3V supply.
The ST3232E has two receivers and two drivers.
The device is guaranteed to run at data rates of
250Kbps while maintaining RS-232 output levels.
Typical applications are Notebook, Subnotebook
and Palmtop Computers, Battery Powered
Equipment, Hand-Held Equipment, Peripherals
and Printers.
ORDERING CODES
Type
Temperature
Range
Package Comments
ST3232ECN 0 to 70 °C DIP-16 25parts per tube / 40tube per box
ST3232EBN -40 to 85 °C DIP-16 25parts per tube / 40tube per box
ST3232ECD 0 to 70 °C SO-16 (Tube) 50parts per tube / 20tube per box
ST3232EBD -40 to 85 °C SO-16 (Tube) 50parts per tube / 20tube per box
ST3232ECDR 0 to 70 °C SO-16 (Tape & Reel) 2500 parts per reel
ST3232EBDR -40 to 85 °C SO-16 (Tape & Reel) 2500 parts per reel
ST3232ECW 0 to 70 °C SO-16 Large (Tube) 50parts per tube / 20tube per box
ST3232EBW -40 to 85 °C SO-16 Large (Tube) 50parts per tube / 20tube per box
ST3232ECWR 0 to 70 °C SO-16 Large (Tape& Reel) 1000 parts per reel
ST3232EBWR -40 to 85 °C SO-16 Large (Tape& Reel) 1000 parts per reel
ST3232ECTR 0 to 70 °C TSSOP16 (Tape & Reel) 2500 parts per reel
ST3232EBTR -40 to 85 °C TSSOP16 (Tape & Reel) 2500 parts per reel
ST3232E
±15KV ESD-PROTECTED, 3 TO 5.5V, LOW POWER,
UP TO 250KBPS, RS-232 DRIVERS AND RECEIVERS
SOP Large
DIP SOP
TSSOP
ST3232E
2/11
PIN CONFIGURATION
PIN DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied. V+ and V- can have a maximum magnitude of +7V, but their absolute addition can not exceed 13 V.
PlN N° SYMBOL NAME AND FUNCTION
1
C
1
+ Positive Terminal for the first Charge Pump Capacitor
2 V+ Doubled Voltage Terminal
3
C
1
- Negative Terminal for the first Charge Pump Capacitor
4
C
2
+ Positive Terminal for the second Charge Pump Capacitor
5
C
2
- Negative Terminal for the second Charge Pump Capacitor
6 V- Inverted Voltage Terminal
7
T2
OUT
Second Transmitter Output Voltage
8
R2
IN
Second Receiver Input Voltage
9
R2
OUT
Second Receiver Output Voltage
10
T2
IN
Second Transmitter Input Voltage
11
T1
IN
First Transmitter Input Voltage
12
R1
OUT
First Receiver Output Voltage
13
R1
IN
First Receiver Input Voltage
14
T1
OUT
First Transmitter Output Voltage
15 GND Ground
16
V
CC
Supply Voltage
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.3 to 6 V
V+
Doubled Voltage Terminal (V
CC
- 0.3) to 7
V
V- Inverted Voltage Terminal 0.3 to -7 V
V+ +|V-| 13 V
T
IN
Transmitter Input Voltage Range
-0.3 to 6 V
R
IN
Receiver Input Voltage Range
± 25 V
T
OUT
Transmitter Output Voltage Range
± 13.2 V
R
OUT
Receiver Output Voltage Range -0.3 to (V
CC
+ 0.3)
V
t
SHORT
Transmitter Output Short to GND Time
Continuous
ST3232E
3/11
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
ELECTRICAL CHARACTERISTICS
(C
1
-C
4
= 0.1µF, V
CC
= 3V to 5.5V, T
A
= -40 to 85°C, unless otherwise specified.
Typical values are referred to T
A
=25°C)
LOGIC INPUT ELECTRICAL CHARACTERISTICS
(C
1
-C
4
= 0.1µF, V
CC
= 3V to 5.5V, T
A
= -40 to 85°C, unless otherwise specified.
Typical values are referred to T
A
=25°C)
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C
1
-C
4
= 0.1µF tested at V
CC
= 3V to 5.5V, T
A
= -40 to 85°C, unless otherwise specified.
Typical values are referred to T
A
=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
ESD ESD Protection Voltage Human Body Model ±15 kV
ESD ESD Protection Voltage IEC-1000-4-2 ±8kV
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I
SUPPLY
V
CC
Power Supply Current No Load V
CC
=3Vor5V T
A
=25°C 0.3 1 mA
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
TIL
Input Logic Threshold Low T-IN 0.8 V
V
HYS
Transmitter Input
Histeresys
0.25 V
V
TIH
Input Logic Threshold High V
CC
= 3.3V 2 V
V
CC
=5V 2.4
I
IL
Input Leakage Current T-IN ± 0.01 ± 1 µA
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
TOUT
Output Voltage Swing All Transmitter outputs are loaded with
3KΩ to GND
± 5 ± 5.4 V
R
TOUT
Transmitter Output
Resistance
V
CC
=V+=V-=0V V
OUT
= ± 2V 300 10M Ω
I
TSC
Output Short Circuit
Current
± 60 mA
I
TOL
Output Leakage Current V
CC
= 0V or 3V to 5.5V V
OUT
= ± 12V
Transmitters Disable
± 25 µA
P1-P3P4-P6P7-P9P10-P12

ST3232EBD

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Manufacturer:
STMicroelectronics
Description:
Buffers & Line Drivers Lo Power 2Drvr/2Rcvr
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