UPD78F0034A NEC, UPD78F0034A Datasheet - Page 41

• Manufacturer Part Number: UPD78F0034A
• Description: 8 Bit Single Chip Microcontroller
• Manufacturer: NEC

www.datasheet4u.com
AD0 to AD7
Read/Write Operation
External fetch (no wait):
A8 to A15
External fetch (wait insertion):
AD0 to AD7
A8 to A15
ASTB
RD
ASTB
WAIT
RD
t
ASTH
t
ADS
Lower 8-bit
address
t
ASTH
t
t
ADS
RDWT1
Lower 8-bit
t
t
ASTRD
address
ADH
t
ASTRD
t
ADH
t
t
ADD1
Data Sheet U14040EJ4V0DS
RDAD
t
ADD1
t
RDAD
Higher 8-bit address
Hi-Z
t
RDD1
Higher 8-bit address
Hi-Z
t
RDD1
t
WTL
t
RDL1
t
RDL1
Instruction code
Instruction code
µ PD78F0034A, 78F0034AY
t
WTRD
t
RDH
t
RDADH
t
RDAST
t
RDH
t
RDADH
t
RDAST
41