Overview
The SN65C3232PWR is a dual-channel RS-232 line driver/receiver integrated circuit produced by Texas Instruments. This device is designed to provide the electrical interface between an asynchronous communication controller and a serial-port connector. It operates with a single 3-V to 5.5-V supply and includes a dual charge-pump circuit that allows for operation without external voltage regulators. The SN65C3232PWR features two line drivers and two line receivers, along with ±15-kV ESD protection on the serial-port connection pins, including ground.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | TSSOP (PW) | |
| Pins | 16 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage | 3.0 to 5.5 | V |
| Supply Current | 0.3 to 1.0 | mA |
| Data Signaling Rate | Up to 1 Mbit/s | |
| Driver Output Slew Rate | 24 to 150 | V/μs |
| ESD Protection | ±15 kV (HBM) | |
| High Level Input Current-Max | 1.0E-6 | Amp |
| Output Low Current-Max | 0.0016 | Amp |
| Output Polarity | Inverted | |
| Interface Standard | EIA-232 |
Key Features
- Operates with 3-V to 5.5-V VCC supply
- Operates up to 1 Mbit/s data signaling rate
- Low supply current: 300 μA typical
- Requires four small external capacitors (0.1 μF each)
- Accepts 5-V logic input with 3.3-V supply
- RS-232 bus-pin ESD protection exceeds ±15 kV using human-body model (HBM)
- Includes a dual charge-pump circuit for voltage regulation
- Two line drivers and two line receivers
- Outputs are protected against shorts to ground
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- Notebooks and laptops
- Palmtop PCs and hand-held equipment
Q & A
- What is the operating voltage range of the SN65C3232PWR? The SN65C3232PWR operates with a supply voltage range of 3-V to 5.5-V.
- What is the maximum data signaling rate supported by the SN65C3232PWR? The device supports data signaling rates up to 1 Mbit/s.
- How many external capacitors are required for the SN65C3232PWR? Four small external capacitors (0.1 μF each) are required.
- What level of ESD protection does the SN65C3232PWR offer? The device offers ±15 kV ESD protection using the human-body model (HBM).
- Can the SN65C3232PWR accept 5-V logic input with a 3.3-V supply? Yes, it can accept 5-V logic input with a 3.3-V supply.
- What is the typical supply current of the SN65C3232PWR? The typical supply current is 300 μA.
- What is the package type and pin count of the SN65C3232PWR? The device is packaged in a TSSOP (PW) package with 16 pins.
- What is the operating temperature range of the SN65C3232PWR? The operating temperature range is -40°C to 85°C.
- What interface standard does the SN65C3232PWR comply with? The device complies with the EIA-232 interface standard.
- Are the outputs of the SN65C3232PWR protected against shorts to ground? Yes, the outputs are protected against shorts to ground.
