ML2215 查看數據表（PDF） - Oki Electric Industry

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ML2215

Speech Synthesizer plus Music LSI with On-Chip 3 Mbit Mask ROM

Oki Electric Industry 

1Semiconductor

FEDL2215-01

ML2215

PIN DESCRIPTIONS

Pin

Symbol

17 (19) RESET

2 (4)

NAR

3 (5)

4 (6)

7 (7)

9 (9)

8 (8)

12 (16)

18 (20)

19 (21)

BUSY

MD

VREF

AOUT

GND

CLK

Sl

SD

13 (17)

ST

11 (15)

VDD

Type

l

O

O

O

I

O

—

l

l

l

l

—

Description

“L” input to this pin turns the LSI into standby mode. At this point, output from

the AOUT pin rises up to VDD level, having the LSl initialized internally. By “H”

input to the pin the AOUT output returns to 1/2 VDD level.

This pin outputs a signal showing empty/full status of the Phase Address

Latch Resister. “H” level indicates the register is empty, and thus the LSI is

ready to accept serial data input. At powering up, the pin outputs “H level”.

Output “L” level while output signal is present either at the AOUT or MD pin.

At powering up, the pin outputs “H” level.

Music output pin

DAC reference pin. Leave this pin open when not used.

Analog output pin

Ground pin

External clock input pin

Serial clock input pin

Serial data input pin. Input a phrase code corresponding to a phrase address

through this pin.

This pin is used when 3-pin interfacing is selected. When 3-pin inter-facing is

selected, input to the SD and Sl pins is valid while the ST pin being held “L”.

When this pin is at “H” level, speech synthesis is started. When 2-pin

interfacing is selected, connect this pin to GND. Mask option allows the user

to select either 3-pin interfacing or 2-pin interfacing.

Power supply pin. Insert 0.1 µF or larger bypass capacitor between this pin

and the GND pin.

* 20-pin plastic SSOP (24-pin plastic SOP)

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