UPD30121 NEC [NEC], UPD30121 Datasheet - Page 49

• Manufacturer Part Number: UPD30121
• Description: VR4121TM 64-/32-BIT MICROPROCESSOR
• Manufacturer: NEC [NEC]

Write cycle time
Address setup time (to WR# )
Address setup time (to ROMCS (0:3)# )
ROMCS (0:3)# setup time (to WR# )
WR# low-level width
ROMCS (0:3)# hold time (from WR# )
Address hold time (from WR# )
WR# high-level width
Address setup time (to WR# )
Data output setup time (to WR# )
Data output hold time (from WR# )
ROMCS (0:3)#
(10) Flash memory mode write parameter
ADD (19:23),
ADD (9:18)
ADD (0:8)
DATA
Note In 32-bit mode: Applied to DATA (16:31)/GPIO (16:31) and DATA (0:15) pins
(output)
(output)
(output)
(output)
WR#
(I/O)
Note
In 16-bit mode: Applied to DATA (0:15) pins
Parameter
Invalid
t
AVEL
t
AVWL
Symbol
t
t
t
Data Sheet U14691EJ1V0DS00
t
t
t
t
t
t
t
t
WLWH
WHWL
AVWH
WHEH
WHAX
DVWH
WHDX
ELWL
AVWL
AVAV
AVEL
t
ELWL
Condition
t
t
t
t
WLWH
DVWH
AVWH
AVAV
MIN.
150
75
10
75
10
10
75
25
75
10
0
MAX.
t
t
t
WHEH
WHAX
WHDX
PD30121
t
WHWL
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
49