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MAX3222
SLLS408H – JANUARY 2000 – REVISED OCTOBER 2016
MAX3222 3-V to 5.5-V Multichannel RS-232 Line Driver and Receiver With ±15-kV ESD Protection
1 Features
•1 RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
• Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
• Operates With 3-V to 5.5-V VCC Supply • Operates Up to 250 kbps • Two Drivers and Two Receivers • Low Standby Current: 1 µA Typical • External Capacitors: 4 × 0.1 µF • Accepts 5-V Logic Input With 3.3-V Supply • Alternative High-Speed Pin-Compatible Device
(1 Mbps) – SNx5C3222
2 Applications
• Battery-Powered Systems • PDAs • Notebooks • Laptops • Palmtop PCs • Hand-held Equipment
3 Description
The MAX3222 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.
The MAX3222 can be placed in the power-down mode by setting PWRDOWN low, which draws only 1 μA from the power supply. When the device is powered down, the receivers remain active while the drivers are placed in the high-impedance state. Receiver outputs also can be placed in the highimpedance state by setting EN high.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
MAX3222CDW, MAX322IDW
SOIC (20)
12.80 mm × 7.50 mm
MAX3222CDB, MAX322IDB
SSOP (20)
7.20 mm × 5.30 mm
MAX3222CPW, MAX322IPW
TSSOP (20)
6.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Block Diagram
13 DIN1
17 DOUT1
12 DIN2
20 PWRDOWN
EN ROUT1
1 15
Powerdown
8 DOUT2
16 RIN1
10 ROUT2
9 RIN2
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
MAX3222
SLLS408H – JANUARY 2000 – REVISED OCTOBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 3 6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4 6.2 ESD Ratings.......................................................