UPD77016 NEC, UPD77016 Datasheet - Page 32

• Manufacturer Part Number: UPD77016
• Description: 16 bits/ Fixed-point Digital Signal Processor
• Manufacturer: NEC

32
External Data Memory Access
Required Timing Condition
Switching Characteristics
Note t
Read data setup time
Read data hold time
WAIT setup time
WAIT hold time
Address output delay time
MRD output delay time
MRD hold time
Write data setup time
Write data output hold time
MWR output delay time
MWR setup time
MWR low level width
MWR high level width
cDW
: Data wait cycle
Parameters
Parameters
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
suDDRD
hDDRD
suWA
hWA
dDA
dDR
hDR
sDDWD
hDDWD
dDW
suDW
wDWL
wDWH
Conditions
Conditions
15 + t
t
+ t
cCI
t
t
wCIH
t
t
wCIL
cCI
cCI
MIN.
MIN.
+ t
cDW
14
0
8
0
0
0
0
0
cDW
– 4
– 4
wCIH
– 4
– 4
Note
Note
–
TYP.
TYP.
MAX.
MAX.
15
6
8
8
PD77016
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns