NEC 78K0 User Manual page 544

CHAPTER 30 ELECTRICAL SPECIFICATIONS (STANDARD PRODUCTS, (A) GRADE PRODUCTS)
(e) 3-wire serial I/O mode with automatic transmit/receive function (SCKA0... internal clock output)
Parameter
SCKA0 cycle time
SCKA0 high-/low-level width
SIA0 setup time (to SCKA0↑)
SIA0 hold time (from SCKA0↑)
Delay time from SCKA0↓ to SOA0
output
Time from SCKA0↑ to STB0↑
Strobe signal high-level width
Busy signal setup time (to busy
signal detection timing)
Busy signal hold time (from busy
signal detection timing)
Time from busy inactive to SCKA0↓ t
Note C is the load capacitance of the SCKA0 and SOA0 output lines.
(f) 3-wire serial I/O mode with automatic transmit/receive function (SCKA0 ... external clock input)
Parameter
SCKA0 cycle time
SCKA0 high-/low-level width
SIA0 setup time (to SCKA0↑)
SIA0 hold time (from SCKA0↑)
Delay time from SCKA0↓ to SOA0
output
SCKA0 rise/fall time
Note C is the load capacitance of the SOA0 output line.
544
Symbol Conditions
4.0 V ≤ V ≤ 5.5 V
t
DD
KCY3
2.7 V ≤ V
< 4.0 V
DD
4.0 V ≤ V ≤ 5.5 V
t , t
DD
TH3 TL3
2.7 V ≤ V
< 4.0 V
DD
t
SIK3
t
KSI3
4.0 V ≤ V
Note
t C = 100 pF
KSO3
2.7 V ≤ V
t
SBD
4.0 V ≤ V ≤ 5.5 V
t
DD
SBW
2.7 V ≤ V
< 4.0 V
DD
t
BYS
4.0 V ≤ V ≤ 5.5 V
t
DD
BYH
2.7 V ≤ V
< 4.0 V
DD
SPS
Symbol Conditions
4.0 V ≤ V ≤ 5.5 V
t
DD
KCY4
2.7 V ≤ V
< 4.0 V
DD
4.0 V ≤ V ≤ 5.5 V
t , t
KH4 KL4 DD
2.7 V ≤ V
< 4.0 V
DD
t
SIK4
t
KSI4
4.0 V ≤ V
Note
t C = 100 pF
KSO4
2.7 V ≤ V
t , t When external device expansion
R4 F4
function is used
When external device expansion
function is not used
User's Manual U15947EJ2V0UD
MIN.
600
1200
/2 − 50
t
KCY3
/2 − 100
t
KCY3
100
300
≤ 5.5 V
DD
< 4.0 V
DD
/2 − 100
t
KCY3
− 30
t
KCY3
− 60
t
KCY3
100
100
150
*
MIN.
600
1200
300
600
100
300
≤ 5.5 V
DD
< 4.0 V
DD
TYP. MAX. Unit
ns
ns
ns
ns
ns
ns
200 ns
300
ns
ns
ns
ns
ns
ns
2t ns
KCY3
TYP. MAX. Unit
ns
ns
ns
ns
ns
ns
200 ns
300 ns
120 ns
1000 ns