HYB514256B Datasheet, PDF (16/22 Pages) Siemens Semiconductor Group – 256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM

HYB 514256B/BL/BJ/BJL-50/-60/-70
256 K × 4-DRAM
V
IH
RAS
VIL
V
IH
CAS
VIL
V
IH
A0-A8
VIL
V
IH
WE
VIL
V
IH
OE
VIL
I/O1-I/O4
V
IH
(Inputs) _VIL
V
I/O1-I/O4 ^OH
(Outputs) _VOL
tRASP
tRP
tRCD
tPC
tCP
tCAS
tCAS
tRAH
tASR
tASC
tCSH
tCAH
Row
Addr
Column
Address
tRAD
tRCH
tRCS
tCAH
tASC
Column
Address
tRCS
tRHCP
tRSH
tCAS
tCRP
tCAH
tASC
Column
Address
tRCS
tASR
Row
Address
tRCH
tAA
tOEA
tCPA
tAA
tOEA
tCPA
tAA
tOEA
tRRH
tDZC
tDZO
tODD
tDZC
tDZO
tODD
tDZC
tDZO
tCDD
tODD
tCAC
tRAC
tCLZ
tOFF ^tCAC
tOEZ
tCLZ
tOFF
tOEZ
Valid
Data Out
Valid
Data Out
tCAC
tOFF
tCLZ
tOEZ
Valid
Data Out
“H” or “L”
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Semiconductor Group
70