HM5212325F Hitachi Semiconductor, HM5212325F Datasheet - Page 5

• Manufacturer Part Number: HM5212325F
• Description: 128M LVTTL interface SDRAM 100 MHz 1-Mword x 32-bit x 4-bank PC/100 SDRAM
• Manufacturer: Hitachi Semiconductor

Block Diagram
Power-up Sequence and Initialization Sequence
CKE, DQMB
DQ 0 to DQ 31
CS, DQ
DQMB 0 to
DQMB 3
A0 to A13
CLK
V
CC
RAS
CAS
CKE
CLK
WE
CS
Power up sequence
0 V
Low
Low
Low
14
32
4
Power stabilize
64-Mbit SDRAM
4M 16
2
100 s
16
Initialization sequence
64-Mbit SDRAM
200 s
4M 16
2
HM5212325F-B60
16
5