74F579 Philips, 74F579 Datasheet - Page 8

• Manufacturer Part Number: 74F579
• Description: 8-bit bidirectional binary counter 3-State
• Manufacturer: Philips

Philips Semiconductors
AC SETUP REQUIREMENTS
1992 May 04
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
SYMBOL
s
s
h
h
s
s
h
h
s
s
h
h
s
s
h
h
w
w
w
rec
8-bit bidirectional binary counter (3-State)
(H)
(L)
(H)
(L)
(H)
(L)
(H)
(L)
(H)
(L)
(H)
(L)
(H)
(L)
(H)
(L)
(H)
(L)
(L)
Setup time, High or Low
I/O
Hold time, High or Low
I/O
Setup time, High or Low
U/D to CP
Hold time, High or Low
U/D to CP
Setup time, High or Low
PE, SR or CS to CP
Hold time, High or Low
PE, SR or CS to CP
Setup time, High or Low
CEP or CET to CP
Hold time, High or Low
CEP or CET to CP
CP Pulse width, High or Low
MR Pulse width, Low
Recovery time, MR to CP
n
n
to CP
to CP
PARAMETER
TEST CONDITIONS
Waveform 5
Waveform 5
Waveform 5
Waveform 5
Waveform 5
Waveform 5
Waveform 5
Waveform 5
Waveform 1
Waveform 2
Waveform 2
8
MIN
3.0
3.0
8.0
8.0
9.5
9.5
5.0
9.0
4.5
4.5
3.0
4.0
0
0
0
0
0
0
0
0
C
L
= 50pF, R
T
V
amb
CC
= +5.0V
TYP
= +25 C
L
= 500
LIMITS
MAX
C
T
V
L
amb
10.0
10.0
10.5
CC
MIN
= 50pF, R
4.0
4.0
9.0
9.0
5.5
4.5
4.5
3.0
4.5
0
0
0
0
0
0
0
0
= +5.0V
= 0 C to +70 C
L
= 500
MAX
10%
Product specification
74F579
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns