SCLS087F December 1982 – June 2021 SN54HC21 , SN74HC21
PRODUCTION DATA
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 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)
- D|14
- PW|14
- N|14
- NS|14
散热焊盘机械数据 (封装 | 引脚)
订购信息
3 Description
This device contains two independent 4-input AND gates. Each gate performs the Boolean function Y = A ● B ● C ● D in positive logic.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| SN74HC21D | SOIC (14) | 8.70 mm × 3.90 mm |
| SN74HC21N | PDIP (14) | 19.30 mm × 6.40 mm |
| SN74HC21NS | SO (14) | 10.20 mm × 5.30 mm |
| SN74HC21PW | TSSOP (14) | 5.00 mm × 4.40 mm |
| SN54HC21J | CDIP (14) | 21.30 mm × 7.60 mm |
| SN54HC21FK | LCCC (20) | 8.90 mm × 8.90 mm |
(1) For all available packages, see the orderable addendum at the
end of the data sheet.
Functional pinout