參數(shù)資料
型號(hào): 74HCT163
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: Presettable synchronous 4-bit binary counter; asynchronous reset(可預(yù)置的同步4位二進(jìn)制計(jì)數(shù)器;異步復(fù)位;)
中文描述: 可預(yù)置同步4位二進(jìn)制計(jì)數(shù)器,異步復(fù)位(可預(yù)置的同步4位二進(jìn)制計(jì)數(shù)器,異步復(fù)位;)
文件頁數(shù): 10/11頁
文件大?。?/td> 86K
代理商: 74HCT163
December 1990
10
Philips Semiconductors
Product specification
Presettable synchronous 4-bit binary
counter; synchronous reset
74HC/HCT163
AC WAVEFORMS
Fig.8
Waveforms showing the clock (CP) to outputs (Q
n
, TC) propagation delays, the clock pulse width, the
output transition times and the maximum clock frequency.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.9 Waveforms showing the input (CET) to output (TC) propagation delays and output transition times.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.10 Waveforms showing the set-up and hold times for the input (D
n
) and parallel enable input (PE).
The shaded areas indicate when the input is
permitted to change for predictable output
performance.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
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