Overview
The SN75C3232EPWR, produced by Texas Instruments, is a dual-channel RS-232 transceiver designed to provide the electrical interface between an asynchronous communication controller and a serial-port connector. This device integrates two line drivers, two line receivers, and a dual charge-pump circuit, enabling operation from a single 3-V to 5.5-V supply. It is particularly suited for applications requiring robust ESD protection and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3 to 5.5 | V |
| Data Signaling Rate | Up to 1 Mbit/s | |
| Supply Current | 300 μA (typical) | μA |
| External Capacitors | 4 × 0.1 μF | μF |
| Driver Output Slew Rate | 24 V/μs to 150 V/μs | V/μs |
| Operating Temperature (SN75C3232E) | 0 to 70 | °C |
| ESD Protection (HBM) | ±15 kV | kV |
| ESD Protection (IEC 61000-4-2 Air-Gap Discharge) | ±15 kV | kV |
| ESD Protection (IEC 61000-4-2 Contact Discharge) | ±8 kV | kV |
| Package Types | D (SOIC), DB (SSOP), DW (SOIC), PW (TSSOP) |
Key Features
- Operate with 3-V to 5.5-V VCC supply
- Operate up to 1 Mbit/s data signaling rate
- Low supply current: 300 μA typical
- External capacitors: 4 × 0.1 μF required
- Accept 5-V logic input with 3.3-V supply
- RS-232 bus-pin ESD protection exceeds ±15 kV using human-body model (HBM)
- Latch-up performance exceeds 100 mA per JESD 78, Class II
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- Notebooks and laptops
- Palmtop PCs and hand-held equipment
- PDAs
Q & A
- What is the operating voltage range of the SN75C3232EPWR?
The SN75C3232EPWR operates with a supply voltage (VCC) ranging from 3 V to 5.5 V.
- What is the maximum data signaling rate of the SN75C3232EPWR?
The device can operate at data signaling rates up to 1 Mbit/s.
- What is the typical supply current of the SN75C3232EPWR?
The typical supply current is 300 μA.
- What external capacitors are required for the SN75C3232EPWR?
The device requires four external capacitors, each 0.1 μF.
- Does the SN75C3232EPWR support 5-V logic input with a 3.3-V supply?
- What level of ESD protection does the SN75C3232EPWR offer?
The device offers ESD protection exceeding ±15 kV using the human-body model (HBM) and IEC 61000-4-2 standards.
- What are the common applications of the SN75C3232EPWR?
- What package types are available for the SN75C3232EPWR?
The device is available in D (SOIC), DB (SSOP), DW (SOIC), and PW (TSSOP) packages.
- What is the operating temperature range for the SN75C3232E?
The operating temperature range for the SN75C3232E is from 0°C to 70°C.
- Does the SN75C3232EPWR provide latch-up protection?
