SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

2-V to 6-V VCC Operation (’HC190, 191) 4.5-V to 5.5-V VCC Operation (’HCT191) Wide Operating Temperature Range of −55°C to 125°C Synchronous Counting and Asynchronous Loading Two Outputs for n-Bit Cascading Look-Ahead Carry for High-Speed Counting Balanced Propagation Delays and Transitio

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

2-V to 6-V VCC Operation (’HC190, 191) 4.5-V to 5.5-V VCC Operation (’HCT191) Wide Operating Temperature Range of −55°C to 125°C Synchronous Counting and Asynchronous Loading Two Outputs for n-Bit Cascading Look-Ahead Carry for High-Speed Counting Balanced Propagation Delays and Transitio

封装/外壳：16-SOIC（0.154"，3.90mm 宽） 包装：管件 描述：IC BCD UP/DWN COUNT PREST 16SOIC 集成电路（IC） 计数器，除法器

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

文件：614.22 Kbytes Page：26 Pages

SYNCHORONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

文件：1.23656 Mbytes Page：31 Pages

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

文件：614.22 Kbytes Page：26 Pages

Presettable synchronous 4-bit binary up/down counter

1. General description The 74HC191 is an asynchronously presettable 4-bit binary up/down counter. It contains four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operation. Asynchronous parallel load capabil

Presettable synchronous 4-bit binary up/down counter

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/

Presettable synchronous 4-bit binary up/down counter

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/

Presettable synchronous 4-bit binary up/down counter

1. General description The 74HC191 is an asynchronously presettable 4-bit binary up/down counter. It contains four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operation. Asynchronous parallel load capabil

Presettable synchronous 4-bit binary up/down counter

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/