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HD74HC166FPEL 参数 Datasheet PDF下载

HD74HC166FPEL图片预览
型号: HD74HC166FPEL
PDF下载: 下载PDF文件 查看货源
内容描述: 并联负载8位移位寄存器 [Parallel-load 8-bit Shift Register]
分类和应用: 移位寄存器触发器逻辑集成电路光电二极管
文件页数/大小: 7 页 / 84 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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HD74HC166
Test Circuit
Measurement point
C
L*
Note: C
L
includes the probe and fig capacitance.
Waveforms
t
W
V
CC
Clear
50%
50%
t
n
Clock
50%
50%
t
n+1
t
n
t
n+1
0V
V
CC
50%
50%
t
W
t
su
Data
t
PHL
Output Q
H
50%
50%
0V
t
h
50%
50%
t
su
t
h
V
CC
50%
0V
t
PLH
50%
t
PHL
V
OH
50%
V
OL
Notes 1. Input wavwform : PRR
1 MHz Zo = 50
t
r
6 ns t
f
6 ns
2. Propagation delay time (tPLH and tPHL)are measured at tn+1.
Proper shifting of data is verified at tn+8 with a functional test.
3. tn : bit time before clocking transition.
tn+1 : bit time after one clocking transition.
tn+8 : bit time after eight clocking transition.
Rev.3.00, Jan 31, 2006 page 5 of 6