74F166 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
74F166 Datasheet PDF : 12 Pages
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Philips Semiconductors
8-bit bidirectional universal shift register
Product specification
74F166
PIN CONFIGURATION
Ds 1
D0 2
D1 3
D2 4
D3 5
CE 6
CP 7
GND 8
LOGIC SYMBOL
16 VCC
15 PE
14 D7
13 Q7
12 D6
11 D5
10 D4
9 MR
SP000283
1 2 3 4 5 10 11 12 14
Ds D0 D1 D2 D3 D4 D5 D6 D7
6
CE
7
CP
9
MR
15
PE
Q7
VCC = Pin 16
GND = Pin 8
13
SF00284
IEC/IEEE SYMBOL
9
SRG 8
R
15
M1 [SHIFT]
M2 [LOAD]
6
1
7
C3/1
1
1, 3D
2
2, 3D
3
2,3D
4
5
10
11
12
14
13
SF00285
FUNCTION TABLE
INPUTS
Qn REGISTER
OUTPUT
OPERATING MODE
PE
CE
CP
DS D0 –D7
Q0
Q1 – Q6
Q7
l
l
↑
X
l–l
L
L–L
L
Parallel load
l
l
↑
X
h–h
H
H–H
H
h
l
↑
l
X–X
L
q0 – q5
q6
Serial shift
h
l
↑
h
X–X
H
q0 – q5
q6
X
h
X
X
X–X
qn
q1 – q6
q7
Hold (do nothing)
Notes to function table
1. H = High–voltage level
2. h = High voltage level one setup time before the low–to–high clock transition
3. L = Low–voltage level
4. l = Low voltage level one setup time before the low–to–high clock transition
5. qn = Lower case letters indicate the state of the referenced input (or output) one setup time prior to the low–to–high clock transition
6. X = Don’t care
7. ↑ = Low–to–high clock transition
Feb. 14, 1991
3
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