ą
SN65C3238, SN75C3238
3ĆV TO 5.5ĆV MULTICHANNEL RSĆ232 COMPATIBLE LINE DRIVER/RECEIVER
ą
SLLS352F − JUNE 1999 − REVISED OCTOBER 2004
D Auto-powerdown Plus
D Operate With 3-V to 5.5-V VCC Supply
D Always-Active Noninverting Receiver
D
D
D
D
D
D
D
DB, DW, OR PW PACKAGE
(TOP VIEW)
C2 +
GND
C2−
V−
DOUT1
DOUT2
DOUT3
RIN1
RIN2
DOUT4
RIN3
DOUT5
FORCEON
FORCEOFF
Output (ROUT1B)
Support Operation From 250 kbit/s to
1 Mbit/s
Low Standby Current . . . 1 µA Typ
External Capacitors . . . 4 × 0.1 µF
Accept 5-V Logic Input With 3.3-V Supply
Inter-Operable With SN65C3243,
SN75C3243
RS-232 Bus-Pin ESD Protection Exceeds
±15-kV Using Human-Body Model (HBM)
Applications
− Battery-Powered Systems, PDAs,
Notebooks, Sub-Notebooks, Laptops,
Palmtop PCs, Hand-Held Equipment,
Modems, and Printers
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
C1+
V+
VCC
C1−
DIN1
DIN2
DIN3
ROUT1
ROUT2
DIN4
ROUT3
DIN5
ROUT1B
INVALID
description/ordering information
The ’C3238 devices consist of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV
ESD protection pin to pin (serial-port connection pins, including GND). The charge pump and four small external
capacitors allow operation from a single 3-V to 5.5-V supply. In addition, these devices include an always-active
noninverting output (ROUT1B), which allows applications using the ring indicator to transmit data while the
device is powered down. These devices operate at data signaling rates up to 1 Mbit/s and at an increased
slew-rate range of 24 V/µs to 150 V/µs.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
PACKAGE†
TA
Tube of 20
−40°C to 85 C
−40 C 85°C
SSOP (DB)
TSSOP (PW)
SN75C3238PW
Reel of 2000
SN75C3238PWR
SN65C3238DW
SN65C3238DWR
Reel of 2000
SN65C3238DBR
Tube of 50
SOIC (DW)
SN75C3238DBR
Reel of 1000
TSSOP (PW)
Reel of 2000
Tube of 20
SSOP (DB)
SN75C3238DWR
Tube of 50
−0°C to 70°C
−0 C 70 C
SN75C3238DW
Reel of 1000
SOIC (DW)
SN65C3238PW
Reel of 2000
SN65C3238PWR
TOP-SIDE
MARKING
75C3238
75C3238
CA3238
65C3238
65C3238
CB3238
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
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.
Copyright 2004, Texas Instruments Incorporated
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
