参数资料
型号: MM74HCT191
厂商: National Semiconductor Corporation
英文描述: Level changes on Enable or Down/Up can be made regardless of the level of the clock
中文描述: 水平变化启用或向下/向上,可无论在时钟的水平
文件页数: 5/8页
文件大小: 170K
代理商: MM74HCT191
Timing Diagrams
’HCT190 Synchronous Decade Counters
Typical Load, Count, and Inhibit Sequences
TL/F/5744–5
Sequence:
(1) Load (preset) to BCD seven
(2) Count up to eight, nine, zero, one and two
(3) Inhibit
(4) Count down to one, zero, nine, eight and seven
’HCT191 Synchronous Binary Counters
Typical Load, Count, and Inhibit Sequence
TL/F/5744–6
Sequence:
(1) Load (preset) to binary thirteen
(2) Count up to fourteen, fifteen, zero, one and two
(3) Inhibit
(4) Count down to one, zero, fifteen, fourteen and thirteen
5
相关PDF资料
PDF描述
MM54HCT193 Lockwire
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MM74HCT193J CLAMP
MM74HCT193N CLAMP
相关代理商/技术参数
参数描述
MM74HCT193 制造商:NSC 制造商全称:National Semiconductor 功能描述:Synchronous Binary Up/Down Counters
MM74HCT193J 制造商:NSC 制造商全称:National Semiconductor 功能描述:Synchronous Binary Up/Down Counters
MM74HCT193N 制造商:NSC 制造商全称:National Semiconductor 功能描述:Synchronous Binary Up/Down Counters
MM74HCT193WM 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
MM74HCT240 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer