NEC PD78F9488 - Manual (Page 355)

CHAPTER 22 ELECTRICAL SPECIFICATIONS ( µ PD789488, 78F9488, 789489, 78F9489)
User’s Manual U15331EJ4V1UD
355
(3) Serial interface 1A0 (SIO1A0) (T
A
= –40 to +85 °C, V
DD
= 1.8 to 5.5 V)
(a) 3-wire serial I/O mode, 3-wire serial I/O mode with automatic transmit/receive function
(internal clock output)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
V
DD
= 2.7 to 5.5 V 800 ns SCK10 cycle time t
KCY4
V
DD
= 1.8 to 5.5 V 3200 ns
V
DD
= 2.7 to 5.5 V t
KCY4
/2–50 ns SCK10 high-/low-level
width t
KH4
,
t
KL4 V
DD
= 1.8 to 5.5 V t
KCY4
/2–150 ns
V
DD
= 2.7 to 5.5 V 150 ns SI10 setup time
(to SCK10
↑)
t
SIK4
V
DD
= 1.8 to 5.5 V 500 ns
V
DD
= 2.7 to 5.5 V 400 ns SI10 hold time
(from SCK10
↑)
t
KSI4
V
DD
= 1.8 to 5.5 V 600 ns
V
DD
= 2.7 to 5.5 V 0 250 ns Delay time from SCK10 ↓
to SO10 output
t
KSO4
R = 1 k Ω, C = 100 pF Note
V
DD
= 1.8 to 5.5 V 0 1000 ns
Note R and C are the load resistance and load capacitance of the SO10 output line.
(b) 3-wire serial I/O mode, 3-wire serial I/O mode with automatic transmit/receive function
(external clock input)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
V
DD
= 2.7 to 5.5 V 800 ns SCK10 cycle time t
KCY5
V
DD
= 1.8 to 5.5 V 3200 ns
V
DD
= 2.7 to 5.5 V 400 ns SCK10 high-/low-level
width t
KH5
,
t
KL5 V
DD
= 1.8 to 5.5 V 1600 ns
V
DD
= 2.7 to 5.5 V 100 ns SI10 setup time
(to SCK10
↑)
t
SIK5
V
DD
= 1.8 to 5.5 V 150 ns
V
DD
= 2.7 to 5.5 V 400 ns SI10 hold time
(from SCK10
↑)
t
KSI5
V
DD
= 1.8 to 5.5 V 600 ns
V
DD
= 2.7 to 5.5 V 0 300 ns Delay time from SCK10 ↓
to SO10 output
t
KSO5
R = 1 k Ω, C = 100 pF Note
V
DD
= 1.8 to 5.5 V 0 1000 ns
Note R and C are the load resistance and load capacitance of the SO10 output line.