HYB514256B-50 SIEMENS [Siemens Semiconductor Group], HYB514256B-50 Datasheet - Page 18

• Manufacturer Part Number: HYB514256B-50
• Description: 256 K x 4-Bit Dynamic RAM Low Power 256 K x 4-Bit Dynamic RAM
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

RAS-Only Refresh Cycle
Semiconductor Group
I/O1-I/O4
(Outputs)
A0-A8
RAS
CAS
V
V OL
V
V IL
V
V
V IL
V IL
OH
IH
IH
IH
“H” or “L”
t
ASR
Address
Row
t
RAH
72
t
HYB 514256B/BL/BJ/BJL-50/-60/-70
RAS
HI-Z
t
RC
t
RPC
t
256 K
RP
t
t
CRP
ASR
Address
Row
4-DRAM