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ST3222B View Datasheet(PDF) - STMicroelectronics

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Description
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ST3222B Datasheet PDF : 13 Pages
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ST3222B
ST3222C
3 to 3.6 V, low power, up to 400 kbps
RS-232 drivers and receivers
Features
300 µA supply current
250 kbps minimum guarantee data rate
6 V/µs minimum guarantee slew rate
Meet EIA/TIA-232 specification down to 3 V
Description
The ST3222 is a 3 V powered EIA/TIA-232 and
V.28/V.24 communications interface with low
power requirements and high data-rate
capabilities. ST3222 has a proprietary low
dropout transmitter output stage providing true
RS-232 performance from 3 to 3.6 V power
supplies. The device requires only four small 0.1
mF standard external capacitors for operating
from 3 V supply. The ST3222 has two receivers
and two drivers. The ST3222 features a 1 mA
shutdown mode that reduces power consumption
and extends battery life in portable systems. Its
receivers can remain active in shutdown mode,
allowing external devices such as modems to be
monitored using only 1 mA supply current. The
device is guaranteed to run at data rates of
250Kbps while maintaining RS-232 output levels.
Typical applications are Notebook, Sub-notebook
and Palmtop Computers, Battery Powered
Equipment, Hand-Held Equipment, Peripherals
and Printers.
TSSOP
Table 1. Device summary
Order codes
Temperature
range
ST3222CTR
0 to 70 °C
ST3222BTR -40 to 85 °C
January 2008
Package
TSSOP20 (tape and reel)
TSSOP20 (tape and reel)
Rev 6
Packaging
2500 parts per reel
2500 parts per reel
1/13
www.st.com
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