UPD178016 datasheet(40/56 Pages) NEC

40 / 56 page

µPD178004, 178006, 178016, 178018

(iii) 3-wire serial I/O mode with automatic transmit/receive function (SCK1 ... internal clock

output)

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

SCK1 cycle time

tKCY11

4.5 V

≤ VDD ≤ 5.5 V

800

3.5 V

≤ VDD < 4.5 V

1600

SCK1 high/low-level width

tKH11,

4.5 V

≤ VDD ≤ 5.5 V

tKCY11/2 – 50

tKL11

3.5 V

≤ VDD < 4.5 V

tKCY11/2 – 100

SI1 setup time (to SCK1

↑)tSIK11

4.5 V

≤ VDD ≤ 5.5 V

100

3.5 V

≤ VDD < 4.5 V

150

SI1 hold time (from SCK1

↑)tKSI11

400

SO1 output delay time (from SCK1

↓)tKSO11

C = 100 pFNote

300

STB

↑ from SCK1↑

tSBD

tKCY11/2 – 100

tKCY11/2 + 100

Strobe signal high-level width

tSBW

tKCY11/ – 30

tKCY11 + 30

Busy signal setup time

tBYS

100

(to busy signal detection timing)

Busy signal hold time

tBYH

4.5 V

≤ VDD ≤ 5.5 V

100

(from busy signal detection timing)

3.5 V

≤ VDD < 4.5 V

150

SCK1

↓ from busy inactive

tSPS

2tKCY11

Note

C is the load capacitance of SO1 output line.

(iv) 3-wire serial I/O mode with automatic transmit/receive function (SCK1 ... external clock

input)

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

SCK1 cycle time

tKCY12

4.5 V

≤ VDD ≤ 5.5 V

800

3.5 V

≤ VDD < 4.5 V

1600

SCK1 high/low-level width

tKH12,

4.5 V

≤ VDD ≤ 5.5 V

400

tKL12

3.5 V

≤ VDD < 4.5 V

800

SI1 setup time (to SCK1

↑)tSIK12

100

SI1 hold time (from SCK1

↑)tKSI12

400

SO1 output delay time (from SCK1

↓)tKSO12

C = 100 pFNote

300

SCK1 at rising or falling edge time tR12, tF12

1000

Note

C is the load capacitance of SO1 output line.

UPD178016 Datasheet(PDF) 40 Page - NEC

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