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ST3237EBPR

P1-P3P4-P6P7-P9P10-P12P13-P13
1/13January 2003
■ EDS PROTECTION FOR RS-232 I/O PINS:
±15KV HUMAN BODY MODEL
±8KV IEC 1000-4-2 CONTACT DISCHARGE
■ 1µA LOW POWER SHUTDOWN WITH
RECEIVERS ACTIVE
■ GUARENTEED DATA RATE
250Kbps (Normal Operation)
1Mbps (Very High Speed Operation)
■ GUARANTEED SLEW RATE RANGE
6V/µs (Normal Operation)
24V/µs (Very High Speed Operation)
■ 0.1µF EXTERNAL CAPACITORS
■ FLOW-THROUGH PINOUT
■ AVAILABLE IN SO-28, SSOP-28 AND
TSSOP28
■ LOW SUPPLY CURRENT 300µA
DESCRIPTION
The ST3237E is a 3V to 5.5V powered EIA/
TIA-232 and V.28/V.24 communication interfaces
high data-rate capability and enhanced
electrostatic discharge (ESD) protection at ±8KV
using IEC1000-4-2 contact discharge and ±15kV
using Human Body Model (HBM). The other pins
are protected with standard ESD protection at
±2kV using HBM method. The ST3237C is a
transceiver (5 drivers, 3 receivers) for fast modem
applications.
The device has a proprietary low-dropout
transmitter output stage providing true RS-232
performance from a 3V to 5.5V supply using a
dual charge pump. The device is guaranteed to
run at data rates of 250Kbps in the normal
operation mode and 1Mbps in the very high speed
operation mode while maintaining RS-232 output
levels.
ORDERING CODES
Type
Temperature
Range
Package Comments
ST3237ECD 0 to 70 °C SO-28 (Tube) 27parts per tube / 12tube per box
ST3237EBD -40 to 85 °C SO-28 (Tube) 27parts per tube / 12tube per box
ST3237ECDR 0 to 70 °C SO-28 (Tape & Reel) 1000 parts per reel
ST3237EBDR -40 to 85 °C SO-28 (Tape & Reel) 1000 parts per reel
ST3237ECPR 0 to 70 °C SSOP-28 (Tape & Reel) 1350 parts per reel
ST3237EBPR -40 to 85 °C SSOP-28 (Tape & Reel) 1350 parts per reel
ST3237ECTR (*) 0 to 70 °C TSSOP28 (Tape & Reel) 2500 parts per reel
ST3237EBTR -40 to 85 °C TSSOP28 (Tape & Reel) 2500 parts per reel
ST3237E
±15KV ESD-PROTECTED, 1µA, 3 TO 5.5V, 250KBPS,
RS-232 TRANSCEIVER WITH STAND-BY
SSOP
SOP
TSSOP
ST3237E
2/13
PIN DESCRIPTION
PlN N° SYMBOL NAME AND FUNCTION
1
C
2
+ Positive Terminal of Inverting Charge Pump Capacitor
2 GND Ground
3
C
2
- Negative Terminal of Inverting Charge Pump Capacitor
4 V- -5.5V Generated by the Charge Pump
5
T1
OUT
First Transmitter Output Voltage
6
T2
OUT
Second Transmitter Output Voltage
7
T3
OUT
Third Transmitter Output Voltage
8
R1
IN
First Receiver Input Voltage
9
R2
IN
Second Receiver Input Voltage
10
T4
OUT
Fourth Transmitter Output Voltage
11
R3
IN
Third Receiver Input Voltage
12
T5
OUT
Fifth Transmitter Output Voltage
13 EN
Receiver Enable, Active Low
14 SHDN
Shutdown Control, Active Low
15 VHSCI Very High Speed Control Input. Connected to GND for normal
operation; connected to VCC for 1Mbps transmission rates.
16
R1
OUTB
Non Inverting Complementary Receiver Output. Always Active.
17
T5
IN
Fifth Transmitter Input Voltage
18
R3
OUT
Third Receiver Output Voltage
19
T4
IN
Fourth Transmitter Input Voltage
20
R2
OUT
Second Receiver Output Voltage
21
R1
OUT
First Receiver Output Voltage
22
T3
IN
Third Transmitter Input Voltage
23
T2
IN
Second Transmitter Input Voltage
24
T1
N
First Transmitter Input Voltage
25
C
1
- Negative Terminal of Voltage-Doubler Charge Pump Capacitor
26
V
CC
Supply Voltage
27 V+ 5.5V Generated by the Charge Pump
28
C
1
+ Positive Terminal of Voltage-Doubler Charge Pump Capacitor
ST3237E
3/13
PIN CONFIGURATION
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.
SHUTDOWN AND ENABLE CONTROL TRUTH TABLE
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.3 to 6 V
V+ Doubled Voltage Terminal -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
SHDN
,EN -0.3 to 6 V
VHSCI
Very High Speed Control Input -0.3 to (V
CC
+0.3)
V
R
IN
Receiver Input Voltage Range
± 25 V
T
OUT
Transmitter Output Voltage Range
± 13.2 V
R
OUT
,R
OUTB
Receiver Output Voltage Range -0.3 to (V
CC
+ 0.3)
V
t
SHORT
Short Circuit Duration on T
OUT
(one at a time)
Continuous
T
stg
Storage Temperature Range
-65 to 150 °C
SHDN
EN T-OUT R-OUT R-OUTB
0 0 High Z Active Active
0 1 High Z High Z Active
1 0 Active Active Active
1 1 Active High Z Active
P1-P3P4-P6P7-P9P10-P12P13-P13

ST3237EBPR

Mfr. #:
Buy ST3237EBPR
Manufacturer:
STMicroelectronics
Description:
Buffers & Line Drivers Transcvr 5Drvr/3Rcvr
Lifecycle:
New from this manufacturer.
Delivery:
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