HM514400CZ-8 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics
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HM514400CZ-8 Datasheet PDF : 27 Pages
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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
OE hold time from WE
HM514400B/BL, HM514400C/CL Series
HM514400B/BL, HM514400C/CL
-6
-7
-8
Symbol Min Max Min Max Min Max Unit Notes
tRWC
tRWD
tCWD
tAWD
tOEH
150 — 180 — 200 — ns
80 — 95 — 105 — ns 10
35 — 45 — 45 — ns 10
50 — 60 — 65 — ns 10
15 — 20 — 20 — ns
Refresh Cycle
HM514400B/BL, HM514400C/CL
-6
-7
-8
Parameter
Symbol Min
CAS setup time (CBR refresh cycle) tCSR
10
CAS hold time (CBR refresh cycle) tCHR
10
RAS precharge to CAS hold time
tRPC
10
CAS precharge time in normal mode tCPN
10
Max Min
— 10
— 10
— 10
— 10
Max Min
— 10
— 10
— 10
— 10
Max Unit Notes
— ns
— ns
— ns
— ns
Fast Page Mode Cycle
HM514400B/BL, HM514400C/CL
-6
-7
-8
Parameter
Symbol Min Max Min Max Min Max Unit Notes
Fast page mode cycle time
tPC
40 — 45 — 50 — ns
Fast page mode CAS precharge time tCP
10 — 10 — 10 — ns
Fast page mode RAS pulse width
tRASC — 100000 — 100000 — 100000 ns 12
Access time from CAS precharge
tACP
— 35 — 40 — 45 ns 3, 13,
17
RAS hold time from CAS precharge tRHCP 35 — 40 — 45 — ns
11
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