NEC switch - Manual (Page 215)

CHAPTER 16 ELECTRICAL SPECIFICATIONS
User’s Manual U12978EJ3V0UD
215
(b) 3-wire serial I/O mode (T A =
−−−−40 to +85°°°°C, V
DD = 4.0 to 5.5 V)
(i) SCK10 ...Internal clock output (when f X = 6.0 MHz)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
When TPS100 Note 1 = 0 667 667 667 ns SCK10 cycle time t KCY1
When TPS100 Note 1 = 1 1,333 1,333 1,333 ns
When TPS100 Note 1 = 0 283 333 ns SCK10 high-/low-level width t
KH1
,
t KL1
When TPS100 Note 1 = 1 617 667 ns
SI10 setup time t SIK1
To SCK10 ↑
150 ns
When TPS100 Note 1 = 0 333 ns SI10 hold time t KSI1
From SCK10 ↑
When TPS100 Note 1 = 1 667 ns
SO10 output delay t KSO1 From SCK10 ↓, CL = 100 pF Note 2 0 200 ns
Notes 1. Bit 4 of serial operation mode register 10 (CSIM10)
2. CL is the capacitance of the SO output line.
(ii) SCK10 ...External clock output
Parameter Symbol Conditions MIN. TYP. MAX. Unit
SCK10 cycle time t KCY2 667 ns
SCK10 high-/low-level width t KH2 ,
t KL2
283 ns
SI10 setup time t
SIK2
100 ns
SI10 hold time t KSI2 333 ns
SO10 output delay t KSO2
From SCK10 ↓, CL = 100 pF Note 0 250 ns
Note CL is the capacitance of the SO output line.