參數(shù)資料
型號(hào): 933670110652
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 計(jì)數(shù)器
英文描述: HCT SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16
封裝: SOT-38-1, DIP-16
文件頁(yè)數(shù): 15/18頁(yè)
文件大?。?/td> 177K
代理商: 933670110652
December 1990
6
Philips Semiconductors
Product specication
Presettable synchronous 4-bit binary
up/down counter
74HC/HCT193
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 (CPD) must be HIGH,
when counting down the count up
clock input (CPU) must be HIGH.
Sequence
Clear (reset outputs to zero);
load (preset) to binary thirteen;
count up to fourteen, fifteen,
terminal count up, zero, one
and two;
count down to one, zero,
terminal count down, fifteen,
Fig.6 Logic diagram.
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