參數(shù)資料
型號: HEF4021BP
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: 8-bit static shift register
封裝: HEF4021BP<SOT38-4 (DIP16)|<<http://www.nxp.com/packages/SOT38-4.html<1<Always Pb-free,;HEF4021BT<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week
文件頁數(shù): 9/15頁
文件大小: 106K
代理商: HEF4021BP
HEF4021B
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 10 October 2011
9 of 15
NXP Semiconductors
HEF4021B
8-bit static shift register
a. Input waveform
b. Test circuit
Test data is given in
Table 10
.
Definitions for test circuit:
DUT = Device Under Test.
C
L
= load capacitance including jig and probe capacitance.
R
T
= termination resistance should be equal to the output impedance Z
o
of the pulse generator.
Test circuit for measuring switching times
Fig 7.
V
M
V
M
t
W
t
W
10 %
90 %
10 %
90 %
0 V
V
I
V
I
negative
pulse
positive
pulse
0 V
V
M
V
M
90 %
10 %
90 %
10 %
t
f
t
r
t
r
t
f
001aaj781
V
DD
V
I
V
O
001aag182
DUT
CL
RT
G
Table 10.
Supply voltage
V
DD
5 V to 15 V
Test data
Input
V
I
V
SS
or V
DD
Load
C
L
50 pF
t
r
, t
f
20 ns
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