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SLLS353G − JUNE 1999 − REVISED NOVEMBER 2004
DB, DW, OR PW PACKAGE
(TOP VIEW)
D
Operate With 3-V to 5.5-V V
Supply
CC
D
Always-Active Noninverting Receiver
Output (ROUT2B)
C2+
C2−
C1+
27 V+
26
25 GND
1
28
D
D
D
D
D
D
D
D
Low Standby Current . . . 1 µA Typ
External Capacitors . . . 4 × 0.1 µF
2
V−
3
V
CC
RIN1
RIN2
RIN3
RIN4
RIN5
DOUT1
DOUT2
DOUT3
DIN3
DIN2
DIN1
4
Accept 5-V Logic Input With 3.3-V Supply
5
24
23
22
21
20
19
18
17
16
15
C1−
Inter-Operable With SN65C3238,
SN75C3238
6
FORCEON
FORCEOFF
INVALID
ROUT2B
ROUT1
ROUT2
ROUT3
ROUT4
ROUT5
7
Support Operation From 250 kbit/s to
1 Mbit/s
8
9
RS-232 Bus-Pin ESD Protection Exceeds
15-kV Using Human-Body Model (HBM)
10
11
12
13
14
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
Applications
− Battery-Powered Systems, PDAs,
Notebooks, Laptops, Palmtop PCs, and
Hand-Held Equipment
description/ordering information
The SN65C3243 and SN75C3243 consist of three line drivers, five line receivers, and a dual charge-pump
circuit with 15-kV ESD protection pin-to-pin (serial-port connection pins, including GND). These devices
provide the electrical interface between an asynchronous communication controller and the serial-port
connector. 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 (ROUT2B), which allows
applications using the ring indicator to transmit data while the devices are powered down. The devices operate
at data signaling rates up to 1 Mbit/s and an increased slew-rate range of 24 V/µs to 150 V/µs.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
Tube of 20
SN75C3243DW
SN75C3243DWR
SN75C3243DBR
SN75C3243PW
SN75C3243PWR
SN65C3243DW
SN65C3243DWR
SN65C3243DBR
SN65C3243PW
SN65C3243PWR
SOIC (DW)
SSOP (DB)
75C3243
Reel of 1000
Reel of 2000
Tube of 50
75C3243
CA3243
−0°C to 70°C
−40°C to 85°C
TSSOP (PW)
Reel of 2000
Tube of 20
SOIC (DW)
SSOP (DB)
65C3243
65C3243
Reel of 1000
Reel of 2000
Tube of 50
TSSOP (PW)
CB3243
Reel of 2000
†
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.
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Copyright 2004, Texas Instruments Incorporated
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1
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