ZHCSUY0 February 2024 SN74AHC157-Q1
PRODUCTION DATA
- 1
- 1 特性
- 2 应用
- 3 说明
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Parameter Measurement Information
- 7 Detailed Description
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Revision History
- 11Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
- BQB|16
订购信息
4 Pin Configuration and Functions
Figure 4-1 PW
Package,16-Pin TSSOP(Top View)
Figure 4-2 WBQB
Package,16-Pin WQFN(Transparent Top View)Table 4-1 Pin Functions
| PIN | TYPE(1) | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| A/B | 1 | I | Address select |
| 1A | 2 | I | Channel 1, data input A |
| 1B | 3 | I | Channel 1, data input B |
| 1Y | 4 | I | Channel 1, data output |
| 2A | 5 | O | Channel 2, data input A |
| 2B | 6 | O | Channel 2, data input B |
| 2Y | 7 | I | Channel 2, data output |
| GND | 8 | G | Ground |
| 3Y | 9 | I | Channel 3, data output |
| 3B | 10 | I | Channel 3, data input B |
| 3A | 11 | I | Channel 3, data input A |
| 4Y | 12 | I | Channel 4, data output |
| 4B | 13 | I | Channel 4, data input B |
| 4A | 14 | I | Channel 4, data input A |
| G | 15 | I | Output strobe, active low |
| VCC | 16 | P | Positive supply |
| Thermal pad(2) | — | The thermal pad can be connected to GND or left floating. Do not connect to any other signal or supply. | |
(1) Signal Types: I = Input, O = Output, I/O
= Input or Output, P = Power, G = Ground.
(2) WBQB package only.