MSM6595 Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Fabricante

MSM6595

1-Mbit Serial Voice ROM

Oki Electric Industry 

¡ Semiconductor

MSM6595A-xxx

PIN DESCRIPTIONS

Pin

Symbol Type

QFJ SOP DIP SSOP

Description

Power supply pin. Insert a bypass capacitor of 0.1 mF or more between this

9 12 9 15 VDD — pin and the GND pin.

18 24 18 30 GND — Ground pin

(SERIAL ADDRESS) This pin inputs the starting X address of a read operation.

6 9 6 12 SADX I Addressing in units of 1024 words is possible. The 1024-word address data

can be input as 10-bit (AX0 - AX9) serial data via the SADX pin.

(SERIAL ADDRESS) This pin inputs the starting Y address of a read operation.

1 1 1 1 SADY I Addressing in units of 1024 words is possible. The 1024-word address data

can be input as 10-bit (AY0 - AY9) serial data via the SADY pin.

7

10

7

13 SASX

(SERIAL ADDRESS STROBE) This is the clock input pin which is used to store

I the serial address data of the X address into the device's internal register.

2

2

2

2

SASY

I

(SERIAL ADDRESS STROBE) This is the clock input pin to store the serial

address data of the Y address into the device's internal register.

8 11 8

14 TAS

(ADDRESS TRANSFER STROBE) This is the input pin for loading the serial

I address data into the internal address counter.

The X and Y addresses are stored at the falling edge of TAS.

(READ CLOCK) This is the clock input pin for reading information out of the data

13

15

13

18 RDCK

I

register. Internal operation starts at the falling edge of RDCK. The information

in the data register is output on the DOUT pin. The internal address counter is

automatically incremented at the falling edge of RDCK.

(DATA OUT) The data output pin is always kept in a high-impedance state when

17 22 17 28 DOUT O RDCK or CS is kept at "H". This pin reflects the "H" or "L" level data being read,

and the current data is held until RDCK is asserted High.

444

5

CS

(CHIP SELECT) Setting this pin to "H" disables all input and output pins. This pin

I enables parallel use of multiple serial voice ROMs by connecting the data output pins.

10 13 10 16 TEST

3 3 3 3 TEST

I

Pins for testing. Apply a "L" level to the TEST pin and "H" level to the TEST pin.

16 21 16 27 TESTO1

O Pins for testing. Leave these pins open.

11 14 11 17 TESTO2

ABSOLUTE MAXIMUM RATINGS

Parameter

Power Supply Voltage

Input Voltage

Storage Temperature

Symbol

VDD

VIN

TSTG

Condition

Ta = 25°C

Ta = 25°C

—

Rating

Unit

–0.3 to +7.0

V

–0.3 to VDD+0.3

V

–55 to +150

°C

4/12

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