PIC16C54C-04/SS218 View Datasheet(PDF) - Microchip Technology

Part Name

Description

MFG CO.

PIC16C54C-04/SS218

EPROM/ROM-Based 8-Bit CMOS Microcontroller Series

Microchip Technology 

PIC16C5X

FIGURE 7-10: TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO VDD)

VDD

MCLR

INTERNAL POR

TDRT

DRT TIME-OUT

INTERNAL RESET

FIGURE 7-11: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD): FAST VDD RISE TIME

VDD

MCLR

INTERNAL POR

TDRT

DRT TIME-OUT

INTERNAL RESET

FIGURE 7-12: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD): SLOW VDD RISE TIME

VDD

MCLR

INTERNAL POR

DRT TIME-OUT

V1

TDRT

INTERNAL RESET

When VDD rises slowly, the TDRT time-out expires long before VDD has reached its final value. In

this example, the chip will reset properly if, and only if, V1 ≥ VDD min

DS30453B-page 38

Preliminary

© 1998 Microchip Technology Inc.

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