UM61512A UMC, UM61512A Datasheet - Page 4

• Manufacturer Part Number: UM61512A
• Description: 64k x 8 Bit High Speed CMOS SRAM
• Manufacturer: UMC

Truth Table
Note: X = H or L
Capacitance
* These parameters are sampled and not 100% tested.
AC Characteristics
Read Cycle
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
RC
AA
ACE1
ACE2
OE
CLZ1
CLZ2
OLZ
CHZ1
CHZ2
OHZ
OH
Standby
Output Disable
Read
Write
Symbol
C
C
I/O
IN
Mode
*
*
Address Access Time
Chip Enable Access Time
Output Enable to Output Valid
Chip Enable to Output in Low Z
Output Enable to Output in Low Z
Chip Disable to Output in High Z
Output Disable to Output in High Z
Output Hold from Address Change
Read Cycle Time
(T
A
= 25 C, f = 1.0 MHz)
Input Capacitance
Input/Output Capacitance
(T
A
= 0 C to +70 C, VCC = 5V
CE1
Parameter
H
X
L
L
L
Parameter
CE2
H
H
H
X
L
CE2
CE2
CE2
CE1
CE1
CE1
OE
H
X
X
L
X
10%)
UM61512A-15
Min.
Min.
15
5
5
2
2
3
-
-
-
-
-
-
WE
H
H
X
X
L
4
Max.
15
15
15
10
10
7
9
-
-
-
-
-
Max.
10
8
I/O Operation
High Z
High Z
High Z
D
D
UM61512A-20
Min.
20
OUT
IN
5
5
2
2
5
-
-
-
-
-
-
Max.
Unit
20
20
20
10
10
pF
pF
9
9
*
-
-
-
-
UM61512A-25
Min.
25
5
5
2
2
5
-
-
-
-
-
-
Supply Current
Conditions
Max.
V
V
25
25
25
12
15
15
10
UM61512A
IN
I/O
I
I
I
I
I
-
-
-
-
-
SB
SB
CC1
CC1
CC1
= 0V
= 0V
, I
, I
SB1
SB2
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns