MSM6652 datasheet(13/45 Pages) OKI

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¡ Semiconductor

MSM6650 Family

FEDL6650-03

4.MSM6650

64-Pin plastic QFP (64-Pin plastic SDIP)

Symbol Type

Description

RESET

XT/OSC2

OSC3

Reset. Setting this pin to "L" puts the LSI in standby status. At this time,

oscillation stops, AOUT is pulled to GND, and the deveice is initialized.

This pin has an internal pull-up resistor.

RND

SW0-SW3

A0-A2

BUSY

XT/

Busy. This pin outputs a "L" level during playback. At power-on, this pin is at "H"

level.

XT/

CR selectable pin. Set to "H" level when using ceramic oscillation. Set to

"L" level when using RC oscillation.

AOUT

Sound Output. This is the synthesized output pin of the internal low-pass filter.

Oscillator 1. This pin is a ceramic oscillator connection pin when using ceramic

oscillation. This pin is an RC connection pin when using RC oscillation.

When using an external clock, use this pin as the clock input.

XT/OSC1

Oscillator 2. This pin is a ceramic oscillator connection pin when using a

ceramic oscillator. This is an RC connection pin when using RC oscillation.

Leave open if using an external clock. OSC2 outputs a "L" level in standby status.

Oscillator 3. Leave open if using a ceramic oscillator. This pin is the RC

connection pin when using RC oscillation. When RC oscillation is selected, OSC3

outputs a "H" level in standby status.

Random Playback. Random playback starts when the

RND pin is set to a "L"

level. At the fall of

RND, addresses from the random address playback circuit

inside the IC are fetched. Set to a "H" level if random playback is not used.

This pin has an internal pull-up resistor.

Phrase Inputs. These pins are phrase input pins corresponding to playback.

If the input changes, SW0 to SW3 pins capture address data after 16 ms and

speech playback commences. These pins have internal pull-down resistors.

Phrase Inputs. Phrase input pins correspoding to playback. The A0 input

becomes invalid when the random playback function is used.

29(19)

11(1)

12(2)

14(4)

21-24

(11-14)

25-27

(15-17)

3(57)

15(5)

5 (59)

10(64)

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