UPD17708 datasheet(13/356 Pages) NEC

13 / 356 page

µPD17704, 17705, 17707, 17708, 17709

Pin No.

Symbol

Function

Output Form

VDD1

Power supply. Supply the same voltage to these pins.

–

VDD0

• With CPU and peripheral function operating: 4.5 to 5.5 V

• With CPU operating

: 3.5 to 5.5 V

• With clock stopped

: 2.2 to 5.5 V

VCOH

PLL local oscillation (VCO) frequency input.

–

VCOL

• VCOH

• Active with VHF mode selected by program; otherwise, pulled down.

• VCOL

• Active with HF or MW mode selected by program; otherwise, pulled down.

Because the input of these pins goes into an AC amplifier, cut the DC

component of the input signal with a capacitor.

EO0

Output from charge pump of PLL frequency synthesizer. Outputs the divided

CMOS

EO1

frequency of local oscillation and the result of comparison of the phase

3-state

difference of reference frequency.

At reset

With clock stopped

Power-ON reset

WDT&SP reset

CE reset

High-impedance

High-impendance

High-impedance

output

TEST

Test input pin.

–

Be sure to connect this pin to GND.

P1D3

Port 1D and BEEP output.

CMOS

P1D2

• P1D3 through P1D0

push-pull

P1D1/BEEP1

• 4-bit I/O port

P1D0/BEEP0

• Can be set in input or output mode in 1-bit units.

• BEEP1, BEEP0

• BEEP output

At reset

With clock stopped

Power-ON reset

WDT&SP reset

CE reset

Input

Retained

(P1D3 through P1D0)

P2B3

4-bit I/O Port.

CMOS

Can be set in input or output mode in 1-bit units.

push-pull

P2B0

At reset

With clock stopped

Power-ON reset

WDT&SP reset

CE reset

Input

Retained

P3C3

4-bit I/O Port.

CMOS

Can be set in input or output mode in 4-bit units.

push-pull

P3C0

At reset

With clock stopped

Power-ON reset

WDT&SP reset

CE reset

Input

Retained

UPD17708 Datasheet(PDF) 13 Page - NEC

UPD17708 Datasheet(HTML) 13 Page - NEC

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Descarga

Enlace URL