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HM6208H Datasheet(PDF) 5 Page - Hitachi Semiconductor

Part No. HM6208H
Description  65,536-word ´ 4-bit High Speed CMOS Static RAM
Download  11 Pages
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Maker  HITACHI [Hitachi Semiconductor]
Homepage  http://www.renesas.com/eng
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HM6208H Datasheet(HTML) 5 Page - Hitachi Semiconductor

 
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HM6208H Series
5
AC Characteristics (Ta = 0 to +70
°C, V
CC = 5 V ± 10%, unless otherwise noted)
Test Conditions
• Input pulse levels: V
SS to 3.0 V
• Input rise and fall time: 5 ns
• Input and output timing reference levels: 1.5 V
• Output load: See figure
Output Load
Output load (A)
Output load (B)
(tHZ, tLZ, tWZ, and tOW)
Note: 1. Including scope and jig
+ 5 V
480
30 pF *1
255
Dout
+ 5 V
480
5 pF *1
255
Dout
Read Cycle
HM6208H-25
HM6208H-35
HM6208H-45
Parameter
Symbol Min
Max
Min
Max
Min
Max
Unit
Read cycle time
t
RC
25
35
45
ns
Address access time
t
AA
—25
35
—45
ns
Chip select access time
t
ACS
—25
35
—45
ns
Output hold from address change
t
OH
5—
5—
5—
ns
Chip selection to output in low-Z
t
LZ
*1
5—
5—
5—
ns
Chip deselection to output in high-Z
t
HZ
*1
015
0
20
020
ns
Chip selection to power up time
t
PU
0—
0—
0—
ns
Chip deselection to power down time
t
PD
—15
25
—30
ns
Note:
1. Transition is measured
±200 mV from steady state voltage with load (B). These parameters are
sampled and not 100% tested.


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