hm62256b ETC-unknow, hm62256b Datasheet - Page 5

• Manufacturer Part Number: hm62256b
• Description: 256k Sram 32-kword 8-bit
• Manufacturer: ETC-unknow

Operation Table
WE
H
H
L
L
Note:
Absolute Maximum Ratings
Parameter
Power supply voltage relative to V
Terminal voltage on any pin relative to V
Power dissipation
Operating temperature range
Storage temperature range
Storage temperature range under bias
Notes: 1. V
DC Operating Conditions (Ta = 0 to +70 C)
Parameter
Supply voltage
Input high voltage
Input low voltage
Note:
2. Maximum voltage is 7.0 V
1. V
: H or L
CS
H
L
L
L
L
T
IL
min: –3.0 V for pulse half-width
min: –3.0 V for pulse half-width
OE
H
L
H
L
Symbol
V
V
V
V
CC
SS
IH
IL
SS
Mode
Standby
Output disable
Read
Write
Write
SS
Symbol
V
V
P
Topr
Tstg
Tbias
Min
4.5
0
2.2
–0.5*
CC
T
T
50 ns
50 ns
1
V
I
I
I
I
I
SB
CC
CC
CC
CC
CC
, I
Typ
—
5.0
0
—
current
SB1
Value
–0.5 to +7.0
–0.5*
1.0
0 to +70
–55 to +125
–10 to +85
1
to V
I/O pin
High-Z
High-Z
Dout
Din
Din
Max
5.5
0
V
0.8
CC
CC
+ 0.3
+0.3*
HM62256B Series
2
Unit
V
V
V
V
Ref. cycle
—
—
Read cycle (1)to (3)
Write cycle (1)
Write cycle (2)
Unit
V
V
W
Notes
C
C
C
5