Overview
The MAX3232ECDE4, produced by Texas Instruments, is a 3-V to 5.5-V multichannel RS-232 line driver and receiver. This device is designed to provide the electrical interface between an asynchronous communication controller and a serial-port connector. It features two line drivers, two line receivers, and a dual charge-pump circuit, enabling operation from a single 3-V to 5.5-V supply. The MAX3232ECDE4 meets the requirements of TIA/EIA-232-F and ITU V.28 standards, ensuring compatibility and reliability in various applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3.0 (VCC = 3.3 V), 4.5 (VCC = 5 V) | 3.3 (VCC = 3.3 V), 5 (VCC = 5 V) | 3.6 (VCC = 3.3 V), 5.5 (VCC = 5 V) | V |
| Driver High-Level Input Voltage (VIH) | 2.0 (VCC = 3.3 V), 2.4 (VCC = 5 V) | - | 5.5 | V |
| Driver Low-Level Input Voltage (VIL) | 0 | - | 0.8 | V |
| Receiver Input Voltage (VI) | -25 | - | 25 | V |
| Operating Free-Air Temperature | 0 (MAX3232EC), -40 (MAX3232EI) | - | 70 (MAX3232EC), 85 (MAX3232EI) | °C |
| Supply Current (ICC) | - | 300 μA | - | μA |
| Data Signaling Rate | - | - | 250 kbit/s | kbit/s |
| Driver Output Slew Rate | - | - | 30 V/μs | V/μs |
Key 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 a 3-V to 5.5-V VCC supply
- Two line drivers and two line receivers
- Low supply current: 300 μA typical
- External capacitors: 4 × 0.1 μF
- Accepts 5-V logic input with a 3.3-V supply
- Pin compatible to alternative high-speed devices (SN65C3232E and SN75C3232E)
Applications
- Battery-powered systems
- Notebooks and laptops
- Palmtop PCs and hand-held equipment
- PDAs
- Industrial PCs and wired networking
- Data center and enterprise networking
Q & A
- What is the operating voltage range of the MAX3232ECDE4? The MAX3232ECDE4 operates with a 3-V to 5.5-V VCC supply.
- What is the data signaling rate of the MAX3232ECDE4? The device operates at data signaling rates up to 250 kbit/s.
- What kind of ESD protection does the MAX3232ECDE4 offer? The device offers ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact Discharge), and ±15 kV (IEC61000-4-2, Air-Gap Discharge) ESD protection.
- How many line drivers and receivers does the MAX3232ECDE4 have? The device has two line drivers and two line receivers.
- What is the typical supply current of the MAX3232ECDE4? The typical supply current is 300 μA.
- What external components are required for the MAX3232ECDE4? The device requires four external capacitors (4 × 0.1 μF).
- Is the MAX3232ECDE4 compatible with 5-V logic inputs when using a 3.3-V supply? Yes, it accepts 5-V logic inputs with a 3.3-V supply.
- What are the operating temperature ranges for the MAX3232ECDE4? The operating free-air temperature ranges are 0°C to 70°C for MAX3232EC and -40°C to 85°C for MAX3232EI.
- What standards does the MAX3232ECDE4 meet? The device meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- What is the maximum driver output slew rate of the MAX3232ECDE4? The maximum driver output slew rate is 30 V/μs.
