HTML datasheet archive (search documentation on electronic components) Search datasheet (1.687.043 components)
Search field

Datasheet: I74F166D (Philips Semiconductors)

8-bit bidirectional universal shift register

 

Download: PDF   ZIP
Philips Semiconductors
Philips
Semiconductors
74F166
8-bit bidirectional universal shift register
Product specification
IC15 Data Handbook
1991 Feb 14
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74F166
8-bit bidirectional universal shift register
2
Feb. 14, 1991
853­0349 01718
FEATURES
·
High impedance NPN base inputs for reduced loading
(20
µ
A in high and low states)
·
Synchronous parallel to serial applications
·
Synchronous serial data input for easy expansion
·
Clock enable for "do nothing" mode
·
Asynchronous master reset
·
Expandable to 16 bits in 8­bit increments
·
Industrial temperature range available (­40
°
C to +85
°
C)
DESCRIPTION
The 74F166 is a high speed 8­bit shift register that has fully
synchronous serial parallel data entry selected by an active
low parallel enable (PE) input. When the PE is low one setup
time before the low­to­high clock transition, parallel data is
entered into the register.
When PE is high, data is entered into internal bit position Q0
from serial data input (Ds), and the remaining bits are shifted
one place to the right (Q0
Q1
Q2, etc.) with each
positive going clock transition.
For expansion of the register in parallel to serial converters,
the Q7 output is connected to the Ds input of the succeeding
stage. The clock input is gated OR structure which allows
one input to be used as an active­low clock enable (CE)
input. The pin assignment for the CP and CE inputs is
arbitrary and can be reversed for layout convenience. The
low­to­high transition of CE input should only take place
while the CP is high for predictable operation. A low on the
master reset (MR) input overrides all other inputs and clears
the register asynchronously, forcing all bit positions to a low
state.
TYPE
TYPICAL f
max
TYPICAL SUPPLY CUR-
RENT( TOTAL)
74F166
175MHz
50mA
ORDERING INFORMATION
ORDER CODE
COMMERCIAL RANGE
INDUSTRIAL RANGE
DESCRIPTION
V
CC
= 5V
±
10%,
V
CC
= 5V
±
10%,
PKG DWG #
T
amb
= 0
°
C to +70
°
C
T
amb
= ­40
°
C to +85
°
C
16­pin plastic DIP
N74F166N
I74F166N
SOT38-4
16­pin plastic SO
N74F166D
I74F166D
SOT109-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS
DESCRIPTION
74F (U.L.) HIGH/
LOW
LOAD VALUE HIGH/
LOW
D0 ­ D7
Parallel data inputs
1.0/0.033
20
µ
A/20
µ
A
Ds
Serial data input (shift right)
2.0/0.066
40
µ
A/40
µ
A
CP
Clock input (active rising edge)
1.0/0.033
20
µ
A/20
µ
A
CE
Clock enable input (active low)
1.0/0.033
20
µ
A/20
µ
A
PE
Parallel enable input (active low)
1.0/0.033
20
µ
A/20
µ
A
MR
Master reset input (active low)
2.0/0.066
40
µ
A/40
µ
A
Q7
Data output
50/33
1.0mA/20mA
Note to input and output loading and fan out table
1. One (1.0) FAST unit load is defined as: 20
µ
A in the high state and 0.6mA in the low state.
Philips Semiconductors
Product specification
74F166
8-bit bidirectional universal shift register
Feb. 14, 1991
3
PIN CONFIGURATION
16
15
14
13
12
11
10
7
6
5
4
3
2
1
9
8
VCC
Ds
D0
D1
D2
D3
CE
CP
GND
PE
D7
Q7
D6
D5
D4
MR
SP000283
LOGIC SYMBOL
Ds D0 D1 D2 D3 D4 D5 D6 D7
VCC = Pin 16
GND = Pin 8
1
2
3
4
5
10 11 12 14
13
Q7
CE
CP
MR
PE
6
7
9
15
SF00284
IEC/IEEE SYMBOL
9
15
SRG 8
1, 3D
2, 3D
13
R
M1 [SHIFT]
M2 [LOAD]
6
7
1
C3/1
1
2
3
4
5
10
11
12
14
2,3D
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 = High­voltage level
2. h
= High voltage level one setup time before the low­to­high clock transition
3. L
= Low­voltage level
4. l
= Low voltage level one setup time before the low­to­high clock transition
5. qn = Lower case letters indicate the state of the referenced input (or output) one setup time prior to the low­to­high clock transition
6. X = Don't care
7.
= Low­to­high clock transition
Philips Semiconductors
Product specification
74F166
8-bit bidirectional universal shift register
Feb. 14, 1991
4
LOGIC DIAGRAM
VCC = Pin 16
GND = Pin 8
R CP
S
Q
R CP
S
Q
R CP
S
Q
R CP
S
Q
R CP
S
Q
R CP
S
Q
R CP
S
Q
D1
D2
D3
D4
D5
D6
D7
3
4
5
10
11
12
14
DS
PE
D0
1
15
2
MR
9
7
6
CP
CE
13
Q7
R CP
S
Q
SF00286
Philips Semiconductors
Product specification
74F166
8-bit bidirectional universal shift register
Feb. 14, 1991
5
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the
operating free air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
V
CC
Supply voltage
­0.5 to +7.0
V
V
IN
Input voltage
­0.5 to +7.0
V
I
IN
Input current
­30 to +5
mA
V
OUT
Voltage applied to output in high output state
­0.5 to V
CC
V
I
OUT
Current applied to output in low output state
40
mA
T
amb
Operating free air temperature range
Commercial range
0 to +70
°
C
Industrial range
­40 to +85
°
C
T
stg
Storage temperature range
­65 to +150
°
C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
V
CC
Supply voltage
4.5
5.0
5.5
V
V
IN
High­level input voltage
2.0
V
V
IL
Low­level input voltage
0.8
V
I
Ik
Input clamp current
­18
mA
I
OH
High­level output current
­1
mA
I
OL
Low­level output current
20
mA
T
amb
Operating free air temperature range
Commercial range
0
+70
°
C
Industrial range
­40
+85
°
C
© 2017 • ICSheet
Contact form
Main page