DS39963A-page 7 © 2009 Microchip Technology Inc.
PIC18F2585/2680/4585/4680
1.0 DEVICE OVERVIEW
This document contains device-specific information for
the following devices, operating in an ambient
temperature range between -40°C and 150°C:
This family of devices offers the advantages of all
PIC18 microcontrollers – namely, high computational
performance at an economical price. In addition to
these features, the PIC18F2585/2680/4585/4680
family introduces design enhancements that make
these microcontrollers a logical choice for many
high-performance, power-sensitive applications.
The primary differentiating features and specifications
of the High-Temperature PIC18F2585/2680/4585/4680
family devices are:
• Above 125°C, writes are not allowed for Flash
program memory
• All AC timing specifications are increased by 30%
This de-rating factor includes parameters, such as
T
PWRT
• Maximum HS frequency of operation is 20 MHz
• PIC18F2585 • PIC18F4585
• PIC18F2680 • PIC18F4680
Note: This data sheet documents only the devices’
features and specifications that are in addition
to the features and specifications of the
non-specialty PIC18F2585/2680/4585/4680
devices. For information on the features and
specifications shared by this document’s High-
Temperature devices and the non-specialty
devices, see the “PIC18F2585/2680/4585/
4680 Data Sheet” (DS39625).
Note: The test duration for AEC-Q100 reliability
testing for devices operating at 150°C is
1,000 hours. Any design operating at
125°C to 150°C for longer than that period
is not warranted without prior written
approval from Microchip Technology Inc.
