NEC 78K0 User Manual page 585

CHAPTER 32 ELECTRICAL SPECIFICATIONS ((A2) 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↓
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.
Symbol Conditions
t
KCY3
t , t
TH3 TL3
t
SIK3
t
KSI3
Note
t C = 100 pF
KSO3
t
SBD
t
SBW
t
BYS
t
BYH
t
SPS
Symbol Conditions
t
KCY4
t , t
KH4 KL4
t
*
SIK4
t
KSI4
Note
t C = 100 pF
KSO4
t , t
R4 F4
User's Manual U15947EJ2V0UD
MIN. TYP. MAX.
1200
/2 − 100
t
KCY3
100
300
300
/2 − 100
t
KCY3
− 60
t
KCY3
100
150
2t
KCY3
MIN. TYP. MAX.
1200
600
100
300
300
1000
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
ns
ns
ns
ns
ns
ns
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