MB81F641642D Fujitsu Microelectronics, MB81F641642D Datasheet - Page 20

• Manufacturer Part Number: MB81F641642D
• Description: 4 x 1M x 16-Bit SDRAM
• Manufacturer: Fujitsu Microelectronics

20
MB81F641642D-75/-102/-102L
<SDRAM>
<Conventional DRAM>
CLK
CKE
CS
RAS
CAS
WE
Address
DQ
RAS
CAS
DQ
H
Fig. 2 – BASIC TIMING FOR CONVENTIONAL DRAM VS SYNCHRONOUS DRAM
t
SI
BA (
RA
Active
A
13
Row Address Select
, A
12
t
HI
)
H
BA (
CA
H : Read
L : Write
Read/Write
A
13
Column Address Select
, A
12
)
CAS Latency = 2
Preliminary (AE4.1E)
Burst Length = 4
H
Precharge
BA (
AP (A
Precharge
A
10
13
)
, A
12
)