參數(shù)資料
型號(hào): UPD78P4038YGC-3B9
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCONTROLLER
中文描述: 16/8-BIT單片機(jī)
文件頁(yè)數(shù): 46/72頁(yè)
文件大?。?/td> 435K
代理商: UPD78P4038YGC-3B9
μ
PD78P4038Y
46
REFRESH TIMING WAVEFORM
(1) Random read/write cycle
(2) When refresh memory is accessed for a read and write at the same time
(3) Refresh after a read
(4) Refresh after a write
ASTB
WR
RD
t
RC
t
RC
t
RC
t
RC
t
RC
t
WRFQL
ASTB
RD, WR
REFRQ
t
DSTRFQ
t
DRFQST
t
WRFQH
ASTB
RD
REFRQ
t
DRFQST
t
DRRFQ
t
WRFQL
ASTB
WR
REFRQ
t
DRFQST
t
DWRFQ
t
WRFQL
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