TRS3232EIPWR RS32EI TSSOP RS-232 Interface IC Semiconductor Devices

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1 Features

• ESD protection for RS-232 bus pins
– ±15 kV (HBM)
– ±8 kV (IEC61000-4-2, Contact discharge)
– ±15 kV (IEC61000-4-2, Air-gap discharge)
• 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
– Interoperable with RS-232 down to 2.7-V VCC
• Operates up to 250 kbps
• Two drivers and two receivers
• Low supply current: 300 μA (typical)
• External capacitors: 4 × 0.1 μF
• Accepts 5-V logic input with 3.3-V supply
• Available in near chip-scale package (QFN-16, 3
mm x 3 mm), 85% smaller than SOIC-16
• Pin compatible to alternative high-speed devices
(1 Mbps)
– SN65C3232E (–40°C to +85°C)
– SN75C3232E (0°C to 70°C)

2 Applications

• Industrial PCs
• Wired networking
• Data center and enterprise computing
• Battery-powered systems
• Notebooks
• Palmtop PCs
• Hand-held equipment

3 Description

The TRS3232E device consists of two line drivers, two-line receivers, and a dual charge-pump circuit with ±15-kV IEC 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 devices operate at data signaling rates up to 250 kbps and a maximum of 30-V/μs driver output slew rate

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