UPD77110GC NEC [NEC], UPD77110GC Datasheet - Page 59

• Manufacturer Part Number: UPD77110GC
• Description: 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSORS
• Manufacturer: NEC [NEC]

External Data Memory Access ( PD77112 only)
Timing requirements
Switching characteristics
Read data setup time
Read data hold time
Address cycle time
Address output hold time
MRD output delay time
Write data output valid time
Write data output hold time
MWR output delay time
MWR output hold time
MWR low-level width
MWR high-level width
Note t
Parameter
Parameter
cDW
: Number of data wait cycles
Symbol
Symbol
t
t
t
t
suDDRD
t
t
vDDWD
hDDWD
hDDRD
t
t
wDWL
wDWH
t
t
t
rcDA
dDW
hDA
dDR
hDA
Data Sheet U12801EJ4V0DS00
Condition
Condition
t
cC
0.5 t
MIN.
MIN.
18
t
0
0
0
0
0
cDW
cC
PD77110, 77111, 77112
3
3
t
cC
+ (t
TYP.
TYP.
cC
t
cDW
)
Note
0.5 t
MAX.
MAX.
PD77111, 77112
5
5
cC
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
59