Philips Semiconductors Product specification
74F1668-bit bidirectional universal shift register
Feb. 14, 1991
6
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER TEST LIMITS UNIT
CONDITIONS
1
MIN TYP
2
MAX
V
OH
High–level output voltage V
CC
= MIN, V
IL
=
MAX,
I
OH
= MAX
±10%V
CC
2.5 V
V
IH
= MIN
±5%V
CC
2.7 3.4 V
V
OL
Low–level output voltage
V
CC
= MIN, V
IL
=
MAX,
I
OL
= MAX
±10%V
CC
0.30 0.50 V
V
IH
= MIN
±5%V
CC
0.30 0.50 V
V
IK
Input clamp voltage V
CC
= MIN, I
I
= I
IK
-0.73 -1.2 V
I
I
Input current at maximum others V
CC
= 0.0V, V
I
= 7.0V 100 µA
input voltage CE, CP
3
others 20 µA
I
IH
High–level input MR, Ds V
CC
= MAX, V
I
= 2.7V 40 µA
current Industrial others 40 µA
only MR, Ds 80 µA
I
IL
Low–level input current others V
CC
= MAX, V
I
= 0.5V -20 µA
MR, Ds -40 µA
I
OS
Short–circuit output current
4
V
CC
= MAX -60 -150 mA
I
CC
Supply current (total)
V
CC
= MAX, PE = CE = Dn = GND,
MR = Ds = 4.5V, CP = ↑
50 70 mA
Notes to DC electrical characteristics
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V
CC
= 5V, T
amb
= 25°C.
3. When testing CP, CE
must remain in high state, whereas CP must remain in high state when testing CE.
4. Not more than one output should be shorted at a time. For testing I
OS
, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I
OS
tests should be performed last.
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25°C T
amb
= 0°C to
+70°C
T
amb
= –40°C to +85°C
SYMBOL PARAMETER TEST V
CC
= +5.0V
V
CC
= +5.0V ± 10% V
CC
= +5.0V ± 10%
UNIT
CONDITION C
L
= 50pF,
R
L
= 500Ω
C
L
= 50pF,
R
L
= 500Ω
C
L
= 50pF,
R
L
= 500Ω
MIN TYP MAX MIN MAX MIN MAX
f
max
Maximum clock frequency Waveform 1 135 175 110 100 ns
t
PLH
t
PHL
Propagation delay
CP to Q7
Waveform 1
5.0
4.0
7.5
6.0
10.0
8.0
5.0
3.5
12.0
9.0
5.0
3.5
13.0
9.0
ns
t
PHL
Propagation delay
MR to Q7
Waveform 2 4.0 6.5 8.5 4.0 9.5 4.0 9.5 ns
