ZHCSOE2C November 2005 – July 2021 SN65C3221E , SN75C3221E
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
-
7 Specifications
- 7.1 Absolute Maximum Ratings
- 7.2 ESD Ratings
- 7.3 ESD Ratings - IEC Specifications
- 7.4 Recommended Operating Conditions
- 7.5 Thermal Information
- 7.6 Electrical Characteristics
- 7.7 Driver Section: Electrical Characteristics
- 7.8 Switching Characteristics: Driver
- 7.9 Receiver Section: Electrical Characteristics
- 7.10 Switching Characteristics: Receiver
- 7.11 Auto-powerdown Section: Electrical Characteristics
- 7.12 Switching Characteristics: Auto-powerdown
- 8 Parameter Measurement Information
- 9 Detailed Description
- 10Application and Implementation
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
6 Pin Configuration and Functions
Figure 6-1 DB or PW PackageTop View
Table 6-1 Pin Configurations
| PIN | DESCRIPTION | ||
|---|---|---|---|
| NAME | NO | I/O | |
| EN | 1 | I | Low input enables receiver ROUT output. High input sets ROUT to high impedance. |
| C1+ | 2 | — | Positive terminals of the voltage-doubler charge-pump capacitors |
| V+ | 3 | O | 5.5-V supply generated by the charge pump |
| C1– | 4 | — | Negative terminals of the voltage-doubler charge-pump capacitors |
| C2+ | 5 | — | Positive terminals of the voltage-doubler charge-pump capacitors |
| C2– | 6 | — | Negative terminals of the voltage-doubler charge-pump capacitors |
| V– | 7 | O | –5.5-V supply generated by the charge pump |
| RIN | 8 | I | RS-232 receiver input |
| ROUT | 9 | O | Receiver output |
| INVALID | 10 | O | Invalid output pin. Output low when all RIN inputs are unpowered. |
| DIN | 11 | I | Driver input |
| FORCEON | 12 | I | Automatic power-down control input |
| DOUT | 13 | O | RS-232 driver output |
| GND | 14 | — | Ground |
| VCC | 15 | — | 3-V to 5.5-V supply voltage |
| FORCEOFF | 16 | I | Automatic power-down control input |