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HM5225325F View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part NameDescriptionManufacturer
HM5225325F 256M LVTTL interface SDRAM 100 MHz 1-Mword × 64-bit × 4-bank/2-Mword × 32-bit × 4-bank PC/100 SDRAM Hitachi
Hitachi -> Renesas Electronics Hitachi
HM5225325F Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
HM5225645F-B60, HM5225325F-B60
Pin Description (HM5225645F)
Pin name
Function
A0 to A13
Address input
Row address A0 to A11
Column address A0 to A7
Bank select address A12/A13 (BS)
DQ0 to DQ63
Data-input/output
CS
Chip select
RAS
Row address strobe command
CAS
Column address strobe command
WE
Write enable
DQMB0 to DQMB7
Byte data mask*1
CLK
Clock input
CKE
Clock enable
VCC
VSS
Open
Power supply
Ground
Open*2
Note:
1. DQMB0: DQ0 to DQ7
DQMB1: DQ8 to DQ15
DQMB2: DQ16 to DQ23
DQMB3: DQ24 to DQ31
DQMB4: DQ32 to DQ39
DQMB5: DQ40 to DQ47
DQMB6: DQ48 to DQ55
DQMB7: DQ56 to DQ63
2. Don’t connect. Internally connected with die.
4
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