HM62W8201H Series
16M High Speed SRAM (2-Mword
×
8-bit)
ADE-203-955A (Z)
Preliminary
Rev. 0.1
May. 28, 1999
Description
The HM62W8201H Series is an asynchronous high speed static RAM organized as 2-Mword
×
8-bit. It has
realized high speed access time by employing the most advanced CMOS process and high speed circuit
designing technology. It is most appropriate for the application which requires high speed, high density
memory and wide bit width configuration, such as cache and buffer memory in system. It has the package
variations of standard 44-pin plastic TSOPII and 36-pin plastic SOJ.
Features
•
Single 3.3 V supply: 3.3 V ± 0.3 V
•
Access time: 10 ns/12 ns/15 ns (max)
•
Completely static memory
No clock or timing strobe required
•
Equal access and cycle times
•
Directly TTL compatible
All inputs and outputs
•
Operating current: 180 mA/160 mA/140 mA (max)
•
TTL standby current: 70 mA/60 mA/50 mA (max)
•
CMOS standby current: 20 mA (max)
•
Center V
CC
and V
SS
type pinout
Preliminary: The specifications of this device are subject to change without notice. Please contact your
nearest Hitachi’s Sales Dept. regarding specifications.
HM62W8201H Series
Absolute Maximum Ratings
Parameter
Power supply voltage relative to V
SS
Terminal voltage on any pin relative to V
SS
Power dissipation
Storage temperature
Storage temperature under bias
Symbol
V
CC
V
T
P
T
Tstg
Tbias
Value
–0.5 to +4.6
–0.5* to V
CC
+0.5* (• 4.6 V (max))
1.0
–55 to +125
–10 to +85
1
2
Unit
V
V
W
°C
°C
Notes: 1. V
T
(min) = –2.0 V for pulse width (under shoot) • 8 ns.
2. V
T
(max) = V
CC
+
2.0 V for pulse with (over shoot) • 8 ns.
DC Operating Conditions
Parameter
Supply voltage
Input high voltage
Input low voltage
Ambient temperature
Notes: 1.
2.
3.
4.
Symbol
V
CC
V
SS
V
IH
V
IL
Ta
Min
3.0
0
2.2
–0.5*
0
1
Typ
3.3
0
—
—
—
Max
3.6
0
V
CC
+ 0.5*
0.8
70
2
Unit
V
V
V
V
°C
Notes
3
4
V
IL
(min) = –2.0 V for pulse width (under shoot) • 8 ns.
V
IH
(max) = V
CC
+ 2.0 V for pulse width (over shoot) • 8 ns.
The supply voltage with all V
CC
pins must be on the same level.
The supply voltage with all V
SS
pins must be on the same level.
5
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