HM514100DS-8 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics
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HM514100DS-8 Datasheet PDF : 26 Pages
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HM514100D Series
Read Cycle
Parameter
Access time from RAS
Access time from CAS
Access time from address
Read command setup time
Read command hold time to CAS
Read command hold time to RAS
Column address to RAS lead time
Output buffer turn-off time
HM514100D
-6
-7
Symbol Min Max Min Max
t RAC
— 60
— 70
t CAC
— 15
— 20
t AA
— 30
— 35
t RCS
0—
0—
t RCH
0—
0—
t RRH
0—
0—
t RAL
30 —
35 —
t OFF
0 15
0 20
-8
Min Max
— 80
— 20
— 40
0—
0—
0—
40 —
0 20
Unit Notes
ns 2, 3, 16
ns 3, 4, 14, 16
ns 3, 5, 14, 16
ns
ns 17
ns 17
ns
ns 6
Write Cycle
Parameter
Write command setup time
Write command hold time
Write command pulse width
Write command to RAS lead time
Write command to CAS lead time
Data-in setup time
Data-in hold time
HM514100D
-6
-7
Symbol Min Max Min Max
t WCS
0—
0—
t WCH
15 —
15 —
t WP
10 —
10 —
t RWL
15 —
20 —
t CWL
15 —
20 —
t DS
0—
0—
t DH
15 —
15 —
-8
Min Max
0—
15 —
10 —
20 —
20 —
0—
15 —
Unit Notes
ns 10
ns
ns
ns
ns
ns 11
ns 11
Read-Modify-Write Cycle
Parameter
Read-modify-write cycle time
RAS to WE delay time
CAS to WE delay time
Column address to WE delay time
HM514100D
-6
-7
Symbol Min Max Min Max
t RWC
130 —
155 —
t RWD
60 —
70 —
t CWD
15 —
20 —
t AWD
30 —
35 —
-8
Min Max
175 —
80 —
20 —
40 —
Unit Notes
ns
ns 10
ns 10
ns 10
8
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