ZHCSQK2F December 1982 – May 2022 SN54HC244 , SN74HC244
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Electrical Characteristics
- 6.6 Electrical Characteristics – SN54HC244
- 6.7 Electrical Characteristics – SN74HC244
- 6.8 Switching Characteristics
- 6.9 Switching Characteristics – CL = 50 pF
- 6.10 Switching Characteristics – CL = 150 pF
- 6.11 Typical Characteristic
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
- DB|20
- NS|20
- N|20
- DW|20
- PW|20
散热焊盘机械数据 (封装 | 引脚)
订购信息
3 说明
SNx4HC244 八路缓冲器和线路驱动器专门设计用于提高三态存储器地址驱动器、时钟驱动器以及总线导向接收器和发送器的性能和密度。SNx4HC244 器件配备两个具有独立输出使能 (OE) 输入的 4 位缓冲器和驱动器。当 OE 为低电平时，该器件将来自 A 输入的同相数据传递到 Y 输出。当 OE 为高电平时，输出处于高阻态。
器件信息
| 器件型号 | 封装（引脚）(1) | 封装尺寸（标称值） |
|---|---|---|
| SN54HC244 | CDIP (20) | 6.92mm × 24.38mm |
| CFP (20) | 6.92mm × 13.72mm | |
| LCCC (20) | 8.89mm × 8.89mm | |
| SN74HC244DB | SSOP (20) | 5.30mm × 7.25mm |
| SN74HC244DW | SOIC (20) | 7.50mm × 12.80mm |
| SN74HC244N | PDIP (20) | 6.30mm × 25.40mm |
| SN74HC244NS | SOP (20) | 5.30mm × 12.60mm |
| SN74HC244PW | TSSOP (20) | 4.40mm × 6.50mm |
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购米6体育平台手机版_好二三四附录。
逻辑图（正逻辑）