ST3222E Datasheet, PDF (1/10 Pages) STMicroelectronics – ±15KV ESD-PROTECTED, 3 TO 5.5V, LOW POWER, UP TO 250KBPS, RS-232 DRIVERS AND RECEIVERS

ST3222E
±15KV ESD-PROTECTED, 3 TO 5.5V, LOW POWER,
UP TO 250KBPS, RS-232 DRIVERS AND RECEIVERS
s ESD PROTECTIO FOR RS-232 I/O PINS
±15KV HUMAN BODY MODEL
±8KV IEC 1000-4-2 CONTACT DISCHARGE
s 300µA SUPPLY CURRENT
s 250Kbps MINIMUM GUARENTEED DATA
RATE
s 6V/µs MINIMUM GUARANTEED SLEW RATE
s MEET EIA/TIA-232 SPECIFICATIONS DOWN
TO 3V
s AVAILABLE IN SO-18, SSOP20 AND
TSSOP20
SOP
SSOP
DESCRIPTION
The ST3222E is a 3V powered EIA/TIA-232 and
V.28/V.24 communications interface with low
power requirements, high data-rate capabilities
and enhanced electrostatic discharge (ESD)
protection to ±8kV using IEC1000-4-2 Contact
Discharge and ±15kV using the Human Body
Model. ST3222E has a proprietary low dropout
transmitter output stage providing true RS-232
performance from 3 to 5V supplies with a dual
charge pump. The charge pump requires only four
small 0.1mF external capacitors for operation form
3V supply.
The device has two receivers and two drivers. The
ST3222E features a 1µA shutdown mode that
reduces power consumption and extends battery
life in portable systems. Its receivers can remain
active in shutdown mode, allowing external
TSSOP
devices such as modems to be monitored using
only 1µA supply current.
The device is guaranteed to run at data rates of
250Kbps while maintaining RS-232 output levels.
Typical applications are Notebook, Subnotebook
and Palmtop Computers, Battery Powered
Equipment, Hand-Held Equipment, Peripherals
and Printers.
ORDERING CODES
Type
ST3222ECD
ST3222EBD
ST3222ECDR
ST3222EBDR
ST3222ECPR
ST3222EBPR
ST3222ECTR
ST3222EBTR
Temperature
Range
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
Package
SO-18 (Tube)
SO-18 (Tube)
SO-18 (Tape & Reel)
SO-18 (Tape & Reel)
SSOP20 (Tape & Reel)
SSOP20 (Tape & Reel)
TSSOP20 (Tape & Reel)
TSSOP20 (Tape & Reel)
Comments
50parts per tube / 20tube per box
50parts per tube / 20tube per box
1000 parts per reel
1000 parts per reel
1350 parts per reel
1350 parts per reel
2500 parts per reel
2500 parts per reel
March 2003
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