Packaging information
| Package | Pins SOIC (DW) | 20 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 2,000 | LARGE T&R |
Features for the SN65C3222E
- ESD Protection for RS-232 bus pins
- ±15-kV Human-body model (HBM)
- ±8-kV IEC 61000-4-2, Contact discharge
- ±15-kV IEC 61000-4-2, Air-gap discharge
- Meet or exceed the requirements of TIA/EIA-232-F and ITU v.28 standards
- Operate with 3-V to 5.5-V VCC supply
- Operate up to 1000 kbit/s
- Two drivers and two receivers
- Low standby current . . . 1 µA Typ
- External capacitors . . . 4 × 0.1 µF
- Accepts 5-V Logic Input with 3.3-V supply
Description for the SN65C3222E
The SN65C3222E and SN75C3222E consist of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND).
The devices meet the requirements of TIA/EIA-232-F and provide 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 typical data signaling rates up to 1000 kbit/s and are improved drop-in replacements for industry-popular ’3222 two-driver, two-receiver functions.
The SN65C3222E and SN75C3222E can be placed in the power-down mode by setting the power-down ( PWRDOWN) input low, which draws only 1 µA from the power supply. When the devices are powered down, the receivers remain active while the drivers are placed in the high-impedance state. Also, during power down, the onboard charge pump is disabled; V+ is lowered to VCC, and V– is raised toward GND. Receiver outputs also can be placed in the high-impedance state by setting enable ( EN) high.