| 型号 | 功能描述 | 生产厂家 企业 | LOGO | 操作 |
|---|---|---|---|---|
4 BIT SYNCHRONOUS UP/DOWN COUNTERS DESCRIPTION The M54/74HC190/191 are high speed CMOS4-BIT SYNCHRONOUS UP/DOWN COUNTERS fabricated in silicon gate C2MOS technology. ■ HIGH SPEED fMAX = 48 MHz (TYP.) AT VCC = 5 V ■ LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C ■ HIGH NOISE IMMUNITY VNIH = VNIL = 28 | STMICROELECTRONICS 意法半导体 |   | ||
4 BIT SYNCHRONOUS UP/DOWN COUNTERS 文件：566.81 Kbytes Page：14 Pages | STMICROELECTRONICS 意法半导体 | |
更新时间：2025-12-26 16:37:01
| IC供应商 | 芯片型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
ST |
NA |
16355 |
一级代理 原装正品假一罚十价格优势长期供货 |
||||
STMICROELECT |
05+ |
原厂原装 |
5045 |
只做全新原装真实现货供应 |
|||
ST/意法 |
2022+ |
DIP-16 |
8000 |
只做原装支持实单,有单必成。 |
|||
ST |
22+ |
16DIP |
9000 |
原厂渠道,现货配单 |
|||
STMicroelectronics |
24+ |
16-DIP |
56200 |
一级代理/放心采购 |
|||
STM |
24+ |
7100 |
|||||
ST |
2447 |
DIP-16 |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
|||
STM |
24+/25+ |
DIP-16 |
5800 |
原装正品现货库存价优 |
|||
ST/意法 |
24+ |
DIP-16 |
5800 |
只做原装，欢迎询价，量大价优 |
|||
STMicroelectronics |
25+ |
16-DIP(0.300 7.62mm) |
9350 |
独立分销商 公司只做原装 诚心经营 免费试样正品保证 |
74HC191B1芯片相关品牌
74HC191B1规格书下载地址
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DdatasheetPDF页码索引
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