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HM6216255HC Datasheet(PDF) 5 Page - Hitachi Semiconductor

Part No. HM6216255HC
Description  4M High Speed SRAM (256-kword x 16-bit)
Download  18 Pages
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Maker  HITACHI [Hitachi Semiconductor]
Homepage  http://www.renesas.com/eng
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HM6216255HC Datasheet(HTML) 5 Page - Hitachi Semiconductor

 
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HM6216255HC Series
5
Operation Table
CS
OE
WE LB
UB
Mode
V
CC current
I/O1–I/O8
I/O9–I/O16
Ref. cycle
H
××××
Standby
I
SB, I SB1
High-Z
High-Z
LH
H
××
Output disable
I
CC
High-Z
High-Z
L
L
H
L
L
Read
I
CC
Output
Output
Read cycle
L
L
H
L
H
Lower byte read I
CC
Output
High-Z
Read cycle
L
L
H
H
L
Upper byte read I
CC
High-Z
Output
Read cycle
L
L
HHH—
I
CC
High-Z
High-Z
L
×
L
L
L
Write
I
CC
Input
Input
Write cycle
L
×
L
L
H
Lower byte write I
CC
Input
High-Z
Write cycle
L
×
L
H
L
Upper byte write I
CC
High-Z
Input
Write cycle
L
×
L
HH—
I
CC
High-Z
High-Z
Note:
×: H or L
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
Supply voltage relative to V
SS
V
CC
–0.5 to +7.0
V
Voltage on any pin relative to V
SS
V
T
–0.5*
1 to V
CC + 0.5*
2
V
Power dissipation
P
T
1.0
W
Operating temperature
Topr
0 to +70
°C
Storage temperature
Tstg
–55 to +125
°C
Storage temperature under bias
Tbias
–10 to +85
°C
Notes: 1. V
T (min) = –2.0 V for pulse width (under shoot) ≤ 6 ns.
2. V
T (max) = VCC + 2.0 V for pulse width (over shoot) ≤ 6 ns.


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