MB81F641642D Fujitsu Microelectronics, MB81F641642D Datasheet - Page 33

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

CLK
Input
(Control)
COMMAND
DQ
(OUTPUT)
CLK
Note: These parameters are a limit value of the rising edge of the clock from one command input to next input. t
latency value from the rising edge of CKE.
Measurement reference voltage is 1.4 V.
MB81F641642D-75/-102/-102L
COMMAND
Fig. 7 – TIMING DIAGRAM, PULSE WIDTH
Fig. 8 – TIMING DIAGRAM, ACCESS TIME
READ
(CL
1)
t
CK
t
t
RC
DPL
, t
, t
RP
DAL
, t
, t
RAS
RSC
, t
t
RCD
, t
AC
RRD
, t
WR
, t
CKSP
, t
Q (valid)
REF
,
t
AC
Q (valid)
Preliminary (AE4.1E)
COMMAND
t
AC
Q (valid)
CKSP
is the
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