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SN74ALS166 Datasheet(PDF) 4 Page - Texas Instruments

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Part No. SN74ALS166
Description  PARALLEL-LOAD 8-BIT SHIFT REGISTER
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN74ALS166 Datasheet(HTML) 4 Page - Texas Instruments

 
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SN74ALS166
PARALLEL-LOAD 8-BIT SHIFT REGISTER
SDAS156D – APRIL 1982 – REVISED AUGUST 2000
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.5
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = –0.4 mA
VCC–2
V
VOL
VCC =4 5V
IOL = 4 mA
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 8 mA
0.35
0.5
V
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
µA
IIL
VCC = 5.5 V,
VI = 0.4 V
–0.1
mA
IO‡
VCC = 5.5 V,
VO = 2.25 V
–30
–112
mA
ICC
VCC = 5.5 V,
See Note 2
14
24
mA
† All typical values are at VCC = 5 V, TA = 25°C.
‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
NOTE 2: With 4.5 V applied to SER and all other inputs, except the clock, grounded, ICC is measured after a clock transition from 0 V to 4.5 V.
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
MIN
MAX
UNIT
fclock
Clock frequency
45
MHz
CLR low
9
tw
Pulse duration
CLK high
10
ns
CLK low
10
SH/LD
16
tsu
Setup time before CLK
Data
7
ns
CLR inactive
11
th
Hold time, data after CLK
3
ns
switching characteristics over recommended operating conditions (unless otherwise noted)
(see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP†
MAX
UNIT
fmax
45
MHz
tPHL
CLR
QH
4
9
14
ns
tPLH
CLK
QH
2
7
12
ns
tPHL
CLK
QH
2
9
13
ns
† All typical values are at VCC = 5 V, TA = 25°C.


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