Overview
The SN65C3222EPWRG4 is a multichannel RS-232 line driver and receiver integrated circuit designed by Texas Instruments. This device is part of the SN65C3222E and SN75C3222E family, which provides a comprehensive solution for serial communication interfaces. It operates within a voltage range of 3-V to 5.5-V and is compatible with both 3.3-V and 5-V logic inputs. The SN65C3222EPWRG4 is engineered to meet or exceed the requirements of TIA/EIA-232-F and ITU v.28 standards, ensuring reliable and high-performance serial communication.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | -0.3 | - | 6 | V |
| V+ Positive-Output Supply Voltage Range | -0.3 | - | 7 | V |
| V- Negative-Output Supply Voltage Range | 0.3 | - | - | V |
| Driver and Control High-Level Input Voltage (VCC = 3.3 V) | 2 | - | VCC | V |
| Driver and Control Low-Level Input Voltage (VCC = 3.3 V) | 0.8 | - | 0.8 | V |
| Operating Free-Air Temperature (SN65C3222E) | -40 | - | 85 | °C |
| Operating Free-Air Temperature (SN75C3222E) | 0 | - | 70 | °C |
| Maximum Data Rate | - | - | 1000 | kbit/s |
| ESD Protection (Human-Body Model) | - | - | ±15 kV | - |
| ESD Protection (IEC 61000-4-2, Contact Discharge) | - | - | ±8 kV | - |
| ESD Protection (IEC 61000-4-2, Air-Gap Discharge) | - | - | ±15 kV | - |
Key Features
- Operates with a single 3-V to 5.5-V supply voltage.
- Meets or exceeds TIA/EIA-232-F and ITU v.28 standards.
- Two line drivers and two line receivers.
- Dual charge-pump circuit for voltage generation.
- ±15-kV ESD protection for RS-232 bus pins (Human-Body Model, IEC 61000-4-2 Contact and Air-Gap Discharge).
- Low standby current of 1 μA (typical).
- Accepts 5-V logic input with a 3.3-V supply.
- Power-down mode with drivers in high-impedance state and receivers active.
- External capacitors required (4 × 0.1 μF).
Applications
- Industrial PCs
- Wired Networking
- Data center and networking equipment
- Notebooks
- Hand-held equipment
Q & A
- What is the operating voltage range of the SN65C3222EPWRG4?
The SN65C3222EPWRG4 operates within a voltage range of 3-V to 5.5-V.
- What are the ESD protection levels for the SN65C3222EPWRG4?
The device offers ±15-kV ESD protection for the Human-Body Model, ±8-kV for IEC 61000-4-2 Contact Discharge, and ±15-kV for IEC 61000-4-2 Air-Gap Discharge.
- How many drivers and receivers does the SN65C3222EPWRG4 have?
The device includes two line drivers and two line receivers.
- What is the maximum data rate supported by the SN65C3222EPWRG4?
The maximum data rate supported is up to 1000 kbit/s.
- What standards does the SN65C3222EPWRG4 comply with?
The device meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- How does the power-down mode affect the device?
In power-down mode, the drivers are placed in a high-impedance state, and the receivers remain active. The onboard charge pump is disabled, and the standby current is reduced to 1 μA.
- What type of capacitors are required for the SN65C3222EPWRG4?
The device requires four external capacitors (4 × 0.1 μF) for the charge-pump circuit.
- Can the SN65C3222EPWRG4 accept 5-V logic input with a 3.3-V supply?
- What is the typical standby current of the SN65C3222EPWRG4?
The typical standby current is 1 μA.
- In which applications is the SN65C3222EPWRG4 commonly used?
The device is commonly used in industrial PCs, wired networking, data center and networking equipment, notebooks, and hand-held equipment.
