UPD784224 Datasheet, PDF (78/92 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784224, 784225, 784224Y, 784225Y
(2) Write operation
(CLK)
A0 to A7
(Output)
tCYK
Lower address
Lower address
A8 to A19
(Output)
AD0 to AD7
(Output)
ASTB
(Output)
WR
(Output)
WAIT
(Input)
Hi-Z
Higher address
tDAID
tDSTOD
Lower address
Hi-Z
(Output)
tSAST
tHSTLA
tFAR
tHWA
tDAW
Data (Output) ^Hi-Z
tHWOD
tSODWR
Higher address
Lower address
(Output)
tWSTH
tDSTW
tDAW
tDAWT
tDWWTL
tDWOD
tWWL
tDWWTH
tHWWT
tDWTW
tDWTID
tDWST
tDSTWT
tDSTWTH
tHSTWT
78
Data Sheet U12376EJ1V0DS00