W78E54 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W78E54

8-BIT MICROCONTROLLER

Winbond 

W78E54

Normal

Flash

Crystal 1. This is the crystal oscillator input. This pin may be driven by an external

clock.

Connect to VSS.

XTAL2

MODE

Normal

Flash

DESCRIPTION

Crystal 2. This is the crystal oscillator output. It is the inversion of XTAL1.

No function in this mode.

VSS, VCC

Power Supplies. These are the chip ground and positive supplies.

BLOCK DIAGRAM

Publication Release Date: November 1997

-5-

Revision A2

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