74F779 Philips, 74F779 Datasheet - Page 6

• Manufacturer Part Number: 74F779
• Description: 8-bit bidirectional binary counter 3-State
• Manufacturer: Philips

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
3. Not more than one output should be shorted at a time. For testing I
Philips Semiconductors
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
NOTES:
AC ELECTRICAL CHARACTERISTICS
1989 Sep 20
V
V
V
V
V
I
I
I
I
I
I
I
I
I
I
IH
IL
IH
IL
OS
CC
SYMBOL
f
t
t
t
t
t
t
t
t
t
t
SYMBOL
O
OH
O
OL
IK
MAX
PLH
PHL
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
8-bit bidirectional binary counter (3-State)
+I
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
+I
OZL
OZH
High level output voltage
High-level output voltage
Low level output voltage
Low-level output voltage
Input clamp voltage
Input current at maximum
input voltage
High-level input current
Low-level input current
Off-state output current
High-level voltage applied
Off-state output current
Low-level voltage applied
Short-circuit output current
Supply current (total)
Maximum clock frequency
Propagation delay
CP to I/On
Propagation delay
CP to TC
Propagation delay
CET to TC
Output Enable time to
High or Low level
Output Enable time from
High or Low level
PARAMETER
PARAMETER
CC
= 5V, T
OS
tests should be performed last.
amb
NO TAG
= 25 C.
TC
TC
I/On
I/On
I/On
others
except
I/On
I/On
I/On
I
I
I
CCH
CCL
CCZ
TEST CONDITIONS
Waveform 1
Waveform 1
Waveform 1
Waveform 2
Waveform 4
Waveform 5
Waveform 4
Waveform 5
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
CC
IL
IL
IH
CC
IL
IL
IH
CC
IL
IL
IH
CC
CC
CC
CC
CC
CC
CC
CC
CC
= MAX
= MAX
= MAX
= MAX
= MAX
= MAX
= MIN
= MIN
= MIN
= MIN,
= MIN,
= MIN,
= MIN, I
= 5.5V, V
= 5.5V, V
= MAX, V
= MAX, V
= MAX, V
= MAX, V
= MAX
= MAX
TEST CONDITIONS
I
= I
I
I
I
I
O
O
I
I
I
I
I
I
O
OH
O
OH
O
OL
= 5.5V
= 7.0V
= 2.7V
= 0.5V
OS
IK
= 2.7V
= 0.5V
6
= MAX
= MAX
, the use of high-speed test apparatus and/or sample-and-hold
= 1mA
= –1mA
= 3mA
= –3mA
MIN
125
4.5
5.5
4.5
4.5
3.0
3.0
2.5
4.5
1.0
1.0
C
L
= 50pF, R
T
amb
V
NO TAG
NO TAG
CC
TYP
145
7.0
8.0
7.0
7.0
4.5
5.5
4.5
6.5
3.0
4.0
10%V
10%V
10%V
= +25 C
5%V
5%V
5%V
= +5V
L
= 500
CC
CC
CC
CC
CC
CC
MAX
10.5
10.5
9.0
9.0
6.5
7.5
7.0
9.0
6.5
7.0
LIMITS
MIN
–60
2.5
2.7
2.4
2.7
C
T
L
amb
V
MIN
115
4.5
5.5
4.5
4.5
2.5
2.5
2.5
4.5
1.0
1.0
= 50pF, R
CC
LIMITS
NO TAG
–0.73
= 0 C to +70 C
TYP
0.30
0.35
3.4
3.3
= +5V
82
91
97
L
= 500
MAX
10%
11.0
11.0
10.0
10.0
MAX
–600
–150
7.5
8.0
8.0
9.5
8.0
8.0
0.50
0.50
–1.2
–0.6
100
128
136
116
Product specification
20
70
1
74F779
UNIT
UNIT
mA
mA
mA
mA
mA
mA
MHz
V
V
V
V
V
V
V
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
A
A
A
A