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SLLS657C – APRIL 2005 – REVISED FEBRUARY 2009
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV IEC ESD PROTECTION
1
FEATURES
•
Single-Chip and Single-Supply Interface for
IBM™ PC/AT™ Serial Port
•
ESD Protection for RS-232 Bus Pins
– ±15-kV Human-Body Model (HBM)
– ±8-kV IEC61000-4-2, Contact Discharge
– ±15-kV IEC61000-4-2, Air-Gap Discharge
•
Meets or Exceeds Requirements of
TIA/EIA-232-F and ITU v.28 Standards
•
Operates With 3-V to 5.5-V V
CC
Supply
•
Always-Active Noninverting Receiver Output
(ROUT2B)
•
Designed to Transmit at a Data Rate up to
500 kbit/s
•
Low Standby Current . . . 1
µA
Typ
•
External Capacitors . . . 4 × 0.1
µF
•
Accepts 5-V Logic Input With 3.3-V Supply
•
Designed to Be Interchangeable With Maxim
MAX3243E
•
Serial-Mouse Driveability
•
Auto-Powerdown Feature to Disable Driver
Outputs When No Valid RS-232 Signal Is
Sensed
•
Package Options Include Plastic Small-Outline
(DW), Shrink Small-Outline (DB), and Thin
Shrink Small-Outline (PW) Packages
2
DB, DW, OR PW PACKAGE
(TOP VIEW)
C2+
C2−
V−
RIN1
RIN2
RIN3
RIN4
RIN5
DOUT1
DOUT2
DOUT3
DIN3
DIN2
DIN1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C1+
V+
V
CC
GND
C1−
FORCEON
FORCEOFF
INVALID
ROUT2B
ROUT1
ROUT2
ROUT3
ROUT4
ROUT5
QFN PACKAGE
(TOP VIEW)
C2+
C1+
C2–
V
CC
26
NC
32 31
30
29
28 27
25
24
23
22
21
20
19
18
17
RIN1
RIN2
RIN3
RIN4
RIN5
DOUT1
DOUT2
DOUT3
NC
V+
V–
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15
16
GND
C1–
FORCEON
FORCEOFF
INVALID
ROUTB2
ROUT1
ROUT2
APPLICATIONS
•
•
•
•
•
•
Battery-Powered Systems
PDAs
Notebooks
Laptops
Palmtop PCs
Hand-Held Equipment
DIN3
DIN2
DIN1
NC
ROUT5
ROUT4
1
2
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.
IBM, PC/AT are trademarks of International Business Machines Corporation.
Copyright © 2005–2009, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
ROUT3
NC
TI [ TEXAS INSTRUMENTS ]
