mm74c912 Fairchild Semiconductor, mm74c912 Datasheet - Page 5

• Manufacturer Part Number: mm74c912
• Description: 6-digit Bcd Display Controller/driver
• Manufacturer: Fairchild Semiconductor

t
t
t
t
t
t
t
t
t
t
f
C
C
CW
AW
WW
DW
WD
WA
WC
1H
H1
IB
MUX
AC Electrical Characteristics
V
Note 5: AC Parameters are guaranteed by DC correlated testing.
Note 6: Capacitance is guaranteed by periodic testing.
IN
OUT
Symbol
CC
, t
, t
0H
H0
5V, t
r
Chip Enable to Write
Enable Setup Time
Address to Write
Enable Setup Time
Write Enable Width
Data to Write Enable
Setup Time
Write Enable to Data
Hold Time
Write Enable to Address
Hold Time
Write Enable to Chip Enable
Hold Time
Logical “1”, Logical “0”
Levels into 3-STATE
3-STATE to Logical “1” to
Logical “0” Level
Interdigit Blanking Time
Multiplex Scan Frequency
Input Capacitance
3-STATE Output Capacitance
t
f
20 ns, C
Parameter
L
50 pF
T
T
T
T
T
T
T
R
R
C
T
T
T
(Note 6)
T
T
T
T
T
T
T
C
T
(Note 6)
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
L
L
L
L
25 C
125 C
25 C
125 C
25 C
125 C
25 C
125 C
25 C
125 C
25 C
125 C
25 C
125 C
25 C
125 C
25 C
125 C
10k, T
10 pF, T
10k, T
50 pF, T
(Note 5)
J
J
J
J
Conditions
25 C
25 C
125 C
125 C
5
Min
400
450
390
430
35
50
35
50
50
75
10
0
0
0
0
5
Typ
225
250
225
250
275
325
325
375
350
250
15
20
15
20
30
40
10
20
30
10
15
10
15
5
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Max
500
600
600
700
7.5
50
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Hz
Hz
pF
pF
s
s