MSM7620 データシートの表示（PDF） - Oki Electric Industry

部品番号

コンポーネント説明

メーカー

MSM7620

Echo Canceler

Oki Electric Industry 

¡ Semiconductor

MSM7620

(5/5)

Pin

32-pin 64-pin

SSOP QFP

—

54

—

55

—

59

—

60

Symbol Type

Description

SF2

I Parallel data transfer flag.

• Single Chip

Fixed at "H"

• Master Chip in a Cascade Connection

Fixed at "H"

• Slave Chip in a Cascade Connection

Connect OF2 of the master chip to the first stage slave chip.

Connect OF1 of the previous stage slave chip to the second and

later stage slave chips.

Refer to the control pin connection example.

OF1

O Parallel data transfer flag.

• Single Chip

Leave this pin open.

• Master Chip in a Cascade Connection

Connect to the SF1 of all slaves.

• Slave chip in a Cascade Connection

Connect to the SF2 of the next stage slave chip.

Connect the last stage slave chip to the SF1 of the master chip.

Refer to the control pin connection example.

SF1

I Parallel data transfer flag.

• Single Chip

Connect OF2.

• Master Chip in a Cascade Connection

Connect OF1 of the last stage slave chip.

• Slave Chip in a Cascade Connection

Connect OF1 of master chip for all slave chips.

Refer to the control pin connection example.

OF2

O Parallel data output flag.

• Single Chip

Connect to SF1.

• Master Chip in a Cascade Connection

Connect to SF2 of the first stage slave chip.

• Slave Chip in a Cascade Connection

Leave open.

Refer to the control pin connection example.

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