SN65C3238E_07 Datasheet, PDF (1/17 Pages) Texas Instruments – 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS WITH ±15-kV ESD (HBM) PROTECTION

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SN65C3238E, SN75C3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS
WITH ±15-kV ESD (HBM) PROTECTION
SLLS726 – MAY 2006
FEATURES
• RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
• Meet or Exceed the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
• Operate With 3-V to 5.5-V V_CC Supply
• Operate up to 1000 kbit/s
• Five Drivers and Three Receivers
• Auto-Powerdown Plus Feature Enables
Flexible Power-Down Mode
• Low Standby Current . . . 1 µA Typical
• External Capacitors . . . 4 × 0.1 µF
• Accept 5-V Logic Input With 3.3-V Supply
• Always-Active Noninverting Receiver Output
(ROUT1B)
• ESD Protection for RS-232 Interface Pins
– ±15 kV – Human-Body Model (HBM)
– ±8 kV – IEC61000-4-2, Contact Discharge
– ±15 kV – IEC61000-4-2, Air-Gap Discharge
DB, DW, OR PW PACKAGE
(TOP VIEW)
C2 + 1
GND 2
C2− 3
V− 4
DOUT1 5
DOUT2 6
DOUT3 7
RIN1 8
RIN2 9
DOUT4 10
RIN3 11
DOUT5 12
FORCEON 13
FORCEOFF ¹⁴
28 C1+
27 V+
26 V_CC
25 C1−
24 DIN1
23 DIN2
22 DIN3
21 ROUT1
20 ROUT2
19 DIN4
18 ROUT3
17 DIN5
16 ROUT1B
15 _INVALID
RHB PACKAGE
(TOP VIEW)
APPLICATIONS
• Battery-Powered Systems
• PDAs
• Notebooks
• Subnotebooks
• Laptops
• Palmtop PCs
• Hand-Held Equipment
• Modems
• Printers
DOUT1
DOUT2
DOUT3
RIN1
RIN2
DOUT4
RIN3
NC
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
C1–
DIN1
DIN2
DIN3
ROUT1
ROUT2
DIN4
ROUT3
DESCRIPTION/ORDERING INFORMATION
The SN65C3238E and SN75C3238E consist of five line drivers, three line receivers, and a dual charge-pump
circuit with ±15-kV ESD (HBM) protection on the driver output (DOUT) and receiver input (RIN) terminals. The
devices meet the requirements of TIA/EIA-232-F and provide the electrical interface between notebook and
subnotebook computer applications. The charge pump and four small external capacitors allow operation from a
single 3-V to 5.5-V supply. In addition, the 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 1000 kbit/s.
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.
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2006, Texas Instruments Incorporated