UPD178016 datasheet(39/56 Pages) NEC

39 / 56 page

µPD178004, 178006, 178016, 178018

(b) Serial interface channel 1

(i) 3-wire serial I/O mode (SCK1 ... internal clock output)

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

SCK1 cycle time

tKCY9

4.5 V

≤ VDD ≤ 5.5 V

800

3.5 V

≤ VDD < 4.5 V

1600

SCK1 high/low-level width

tKH9,

4.5 V

≤ VDD ≤ 5.5 V

tKCY9/2 – 50

tKL9

3.5 V

≤ VDD < 4.5 V

tKCY9/2 – 100

SI1 setup time (to SCK1

↑)tSIK9

4.5 V

≤ VDD ≤ 5.5 V

100

3.5 V

≤ VDD < 4.5 V

150

SI1 hold time (from SCK1

↑)tKSI9

400

SO1 output delay time (from SCK1

↓) tKSO9

C = 100 pFNote

300

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

SCK1 cycle time

tKCY10

4.5 V

≤ VDD ≤ 5.5 V

800

3.5 V

≤ VDD < 4.5 V

1600

SCK1 high/low-level width

tKH10,

4.5 V

≤ VDD ≤ 5.5 V

400

tKL10

3.5 V

≤ VDD < 4.5 V

800

SI1 setup time (to SCK1

↑)tSIK10

100

SI1 hold time (from SCK1

↑)tKSI10

400

SO1 output delay time (from SCK1

↓)tKSO10

C = 100 pFNote

300

SCK1 at rising or falling edge time tR10, tF10

1000

Note

C is the load capacitance of SO1 output line.

(ii) 3-wire serial I/O mode (SCK1 ... external clock input)

Note

C is the load capacitance of SO1 output line.

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