參數(shù)資料
型號(hào): 74HCT192N
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Presettable synchronous BCD decade up/down counter
中文描述: HCT SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDIP16
文件頁數(shù): 6/13頁
文件大?。?/td> 99K
代理商: 74HCT192N
December 1990
6
Philips Semiconductors
Product specification
Presettable synchronous BCD decade
up/down counter
74HC/HCT192
Fig.5 Typical clear, load and count sequence.
(1) Clear overrides load, data and count inputs.
(2) When counting up the count down clock input
(CP
) must be HIGH, when counting down the
count up clock input (CP
U
) must be HIGH.
Sequence
Clear (reset outputs to zero);
load (preset) to BCD seven;
count up to eight, nine,
terminal count up, zero,
one and two;
count down to one, zero,
terminal count down, nine,
eight, and seven.
Fig.6 Logic diagram.
相關(guān)PDF資料
PDF描述
74HCT192 Presettable synchronous BCD decade up/down counter
74HC192 Presettable synchronous BCD decade up/down counter
74HCT193 Presettable synchronous 4-bit binary up/down counter
74HC193 Presettable synchronous 4-bit binary up/down counter
74HCT194 4-bit bidirectional universal shift register
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