HM62V16256CBPI Series
Wide Temperature Range Version
4 M SRAM (256-kword
×
16-bit)
ADE-203-1101 (Z)
Preliminary
Rev. 0.0
Aug. 30, 1999
Description
The Hitachi HM62V16256CBPI Series is 4-Mbit static RAM organized 262,144-word
×
16-bit.
HM62V16256CBPI Series has realized higher density, higher performance and low power consumption by
employing Hi-CMOS process technology. It offers low power standby power dissipation; therefore, it is
suitable for battery backup systems. It is packaged in 48 bumps chip size package with 0.75 mm bump pitch
for high density surface mounting. HM62V16256CBPI is suitable for the application of the mobile phone to
reduce both the mount space and weight.
Features
•
•
•
Single 2.5 V and 3.0 V supply: 2.2 V to 3.6 V
Fast access time: 70 ns (max)
Power dissipation:
Active: TBD (typ)
Standby: 2.4
µW
(typ)
Completely static memory.
No clock or timing strobe required
Equal access and cycle times
Common data input and output.
Three state output
Battery backup operation.
2 chip selection for battery backup
Temperature range: –40 to +85°C
•
•
•
•
•
Preliminary: The specification of this device are subject to change without notice. Please contact your
nearest Hitachi’s Sales Dept. regarding specification.
HM62V16256CBPI Series
Operation Table
CS1
H
×
×
L
L
L
L
L
L
L
CS2
×
L
×
H
H
H
H
H
H
H
WE
×
×
×
H
H
H
L
L
L
H
OE
×
×
×
L
L
L
×
×
×
H
UB
×
×
H
L
H
L
L
H
L
×
LB
×
×
H
L
L
H
L
L
H
×
I/O0 to I/O7
High-Z
High-Z
High-Z
Dout
Dout
High-Z
Din
Din
High-Z
High-Z
I/O8 to I/O15
High-Z
High-Z
High-Z
Dout
High-Z
Dout
Din
High-Z
Din
High-Z
Operation
Standby
Standby
Standby
Read
Lower byte read
Upper byte read
Write
Lower byte write
Upper byte write
Output disable
Note: H: V
IH
, L: V
IL
,
×:
V
IH
or V
IL
Absolute Maximum Ratings
Parameter
Power supply voltage relative to V
SS
Terminal voltage on any pin relative to V
SS
Power dissipation
Storage temperature range
Storage temperature range under bias
Symbol
V
CC
V
T
P
T
Tstg
Tbias
Value
–0.5 to + 4.6
–0.5*
1
to V
CC
+ 0.3*
2
1.0
–55 to +125
–40 to +85
Unit
V
V
W
°C
°C
Notes: 1. V
T
min: –3.0 V for pulse half-width
≤
30 ns.
2. Maximum voltage is +4.6 V.
DC Operating Conditions
Parameter
Supply voltage
Symbol
V
CC
V
SS
Input high voltage
V
CC
= 2.2 V to 2.7 V V
IH
V
CC
= 2.7 V to 3.6 V V
IH
Input low voltage
V
CC
= 2.2 V to 2.7 V V
IL
V
CC
= 2.7 V to 3.6 V V
IL
Ambient temperature range
Note:
Ta
Min
2.2
0
2.0
2.2
–0.2
–0.3
–40
Typ
2.5/3.0
0
—
—
—
—
—
Max
3.6
0
V
CC
+ 0.3
V
CC
+ 0.3
0.4
0.6
85
Unit
V
V
V
V
V
V
°C
1
1
Note
1. V
IL
min: –3.0 V for pulse half-width
≤
30 ns.
5
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