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74HCT191PW中文资料PDF规格书
74HCT191PW规格书详情
GENERAL DESCRIPTION
The 74HC/HCT191 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT191 are asynchronously presettable 4-bit binary up/down counters. They contain four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operation.
FEATURES
• Synchronous reversible counting
• Asynchronous parallel load
• Count enable control for synchronous expansion
• Single up/down control input
• Output capability: standard
• ICC category: MSI
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
PHILIPS/飞利浦 |
23+ |
SOP3.9MM |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
NXP/恩智浦 |
23+ |
TSSOP-5 |
30000 |
原装正品公司现货,假一赔十! |
询价 | ||
PHILIPS/飞利浦 |
SOP3.9MM |
198589 |
假一罚十原包原标签常备现货! |
询价 | |||
NXP/恩智浦 |
21+ |
TSSOP-5 |
8080 |
只做原装,质量保证 |
询价 | ||
PHILIPS/飞利浦 |
22+ |
SOP |
9800 |
只做原装正品假一赔十!正规渠道订货! |
询价 | ||
NXP/恩智浦 |
2021+ |
TSSOP-5 |
7600 |
原装现货,欢迎询价 |
询价 | ||
HAR |
2021+ |
SMD |
5000 |
原厂授权代理,海外优势订货渠道。可提供大量库存,详 |
询价 | ||
PHI |
21+ |
SOP |
50000 |
原厂订货价格优势,可开13%的增值税票 |
询价 | ||
PHILIPS |
9744 |
44 |
原装正品长期供货,如假包赔包换 徐小姐13714450367 |
询价 | |||
NXP/恩智浦 |
21+ |
TSSOP-5 |
8080 |
公司只做原装,诚信经营 |
询价 |