MAX3223 LINE DRIVER/RECEIVER Datasheet

MAX3223 Datasheet, PDF, Equivalent


Part Number

MAX3223

Description

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

Manufacture

etcTI

Total Page 23 Pages
Datasheet
Download MAX3223 Datasheet


MAX3223
ą MAX3223
3ĆV TO 5.5ĆV MULTICHANNEL RSĆ232 LINE DRIVER/RECEIVER
WITH ±15ĆkV ESD PROTECTION
SLLS409K − JANUARY 2000 − REVISED MARCH 2004
D RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
D Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
D Operates With 3-V to 5.5-V VCC Supply
D Operates Up To 250 kbit/s
D Two Drivers and Two Receivers
D Low Standby Current . . . 1 µA Typical
D External Capacitors . . . 4 × 0.1 µF
D Accepts 5-V Logic Input With 3.3-V Supply
D Alternative High-Speed Pin-Compatible
Device (1 Mbit/s)
− SNx5C3223
D Applications
− Battery-Powered Systems, PDAs,
Notebooks, Laptops, Palmtop PCs, and
Hand-Held Equipment
DB, DW, OR PW PACKAGE
(TOP VIEW)
EN
C1+
V+
C1−
C2+
C2−
V−
DOUT2
RIN2
ROUT2
1
2
3
4
5
6
7
8
9
10
20 FORCEOFF
19 VCC
18 GND
17 DOUT1
16 RIN1
15 ROUT1
14 FORCEON
13 DIN1
12 DIN2
11 INVALID
description/ordering information
The MAX3223 consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD
protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of
TIA/EIA-232-F and provides 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. The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs
driver output slew rate.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC (DW)
Tube of 25
Reel of 2000
MAX3223CDW
MAX3223CDWR
MAX3223C
−0°C to 70°C
SSOP (DB)
Tube of 70
Reel of 2000
MAX3223CDB
MAX3223CDBR
MA3223C
TSSOP (PW)
Tube of 70
Reel of 2000
MAX3223CPW
MAX3223CPWR
MA3223C
SOIC (DW)
Tube of 25
Reel of 2000
MAX3223IDW
MAX3223IDWR
MAX3223I
−40°C to 85°C SSOP (DB)
Tube of 70
Reel of 2000
MAX3223IDB
MAX3223IDBR
MB3223I
TSSOP (PW)
Tube of 70
Reel of 2000
MAX3223IPW
MAX3223IPWR
MB3223I
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.
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
Copyright 2004, Texas Instruments Incorporated
1

MAX3223
MAX3223
3ĆV TO 5.5ĆV MULTICHANNEL RSĆ232 LINE DRIVER/RECEIVER
WITH ±15ĆkV ESD PROTECTION
SLLS409K − JANUARY 2000 − REVISED MARCH 2004
ą
description/ordering information (continued)
Flexible control options for power management are available when the serial port is inactive. The
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF
is set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1 µA.
Disconnecting the serial port or turning off the peripheral drivers causes auto-powerdown to occur.
Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown enabled,
the device is activated automatically when a valid signal is applied to any receiver input. The INVALID output
is used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any
receiver input voltage is greater than 2.7 V or less than −2.7 V, or has been between −0.3 V and 0.3 V for less
than 30 µs. INVALID is low (invalid data) if the receiver input voltage is between −0.3 V and 0.3 V for more than
30 µs. Refer to Figure 4 for receiver input levels.
Function Tables
EACH DRIVER
INPUTS
OUTPUT
DIN
FORCEON
VALID RIN
FORCEOFF RS-232 LEVEL
DOUT
XX
L
XZ
LH
H
XH
HH
H
XL
LL
H
Yes H
HL
H
Yes L
LL
H
No Z
HL
H
No Z
H = high level, L = low level, X = irrelevant, Z = high impedance
DRIVER STATUS
Powered off
Normal operation with
auto-powerdown disabled
Normal operation with
auto-powerdown enabled
Powered off by
auto-powerdown feature
EACH RECEIVER
INPUTS
OUTPUT
RIN
EN
VALID RIN
RS-232 LEVEL
ROUT
LL
X
H
HL
X
L
XH
X
Z
Open L
No
H
H = high level, L = low level, X = irrelevant,
Z = high impedance (off), Open = input
disconnected or connected driver off
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Features ą MAX3223 3ĆV TO 5.5ĆV MULTICHANNEL R SĆ232 LINE DRIVER/RECEIVER WITH ±15Ć kV ESD PROTECTION SLLS409K − JANUARY 2000 − REVISED MARCH 2004 D RS-232 B us-Pin ESD Protection Exceeds ±15 kV U sing Human-Body Model (HBM) D Meets or Exceeds the Requirements of TIA/EIA-232 -F and ITU v.28 Standards D Operates Wi th 3-V to 5.5-V VCC Supply D Operates U p To 250 kbit/s D Two Drivers and Two R eceivers D Low Standby Current . . . 1 µA Typical D External Capacitors . . . 4 × 0.1 µF D Accepts 5-V Logic Input With 3.3-V Supply D Alternative High-S peed Pin-Compatible Device (1 Mbit/s) SNx5C3223 D Applications − Battery -Powered Systems, PDAs, Notebooks, Lapt ops, Palmtop PCs, and Hand-Held Equipme nt DB, DW, OR PW PACKAGE (TOP VIEW) E N C1+ V+ C1− C2+ C2− V− DOUT2 RIN 2 ROUT2 1 2 3 4 5 6 7 8 9 10 20 FORCE OFF 19 VCC 18 GND 17 DOUT1 16 RIN1 15 R OUT1 14 FORCEON 13 DIN1 12 DIN2 11 INVA LID description/ordering information T he MAX3223 consists of two line drivers, two line receivers, and a dual charge-pump cir.
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