HM6208H Series
Block Diagram
A14
A15
A0
A1
A2
A3
A4
A5
I/O1
I/O2
I/O3
I/O4
A13 A12 A11 A10 A9 A8 A7 A6
Input
data
control
V
CC
Row
decoder
Memory array
256
×
1024
V
SS
Column I/O
Column decoder
CS
WE
Truth Table
CS
H
L
L
WE
×
H
L
Mode
Not selected
Read
Write
V
CC
Current
I
SB
, I
SB1
I
CC
I
CC
I/O Pin
High-Z
Dout
Din
Ref. Cycle
—
Read cycle
Write cycle
Note:
×:
Don’t care.
Absolute Maximum Ratings
Parameter
Voltage on any pin relative to V
SS
Power dissipation
Operating temperature range
Storage temperature range
Storage temperature range under bias
Note:
Symbol
Vin
P
T
Topr
Tstg
Tbias
Value
–0.5
*1
to +7.0
1.0
0 to +70
–55 to +125
–10 to +85
Unit
V
W
°C
°C
°C
1. Vin min = –2.5 V for pulse widths
≤
10 ns.
3