AN1365/0504

1/13

Rev. 2.0

AN1365

APPLICATION NOTE

GUIDELINES FOR MIGRATING ST72C254

APPLICATIONS TO ST72F264

INTRODUCTION

This application note provides information on using ST72264 new series in an application orig-

inally designed for the ST72254, 215, 216, 104 series.

1 FEATURE OVERVIEW

Note 1

Note 2

information on third-party tools.

ST72104

ST72215

ST72216 ST72C254 ST72260

ST72262 ST72F264

Package

SDIP32/SO28 (no change)

Program Memory

FLASH/ROM

Operating Supply

3.2V to 5.5V

2.7V to 5.5V

Register Map

128 bytes (no change)

I/Os

28 pins (see Section 2.2 Pinout)

Slow Mode

Yes

Active-HALT

No

Nested Interrupts

No

Yes (not by default)

Watchdog

Yes

16-bit Timer

1212

2 (minor change in

PWM and One Pulse modes)

SPI

Yes

SCI

No

Yes

No

Yes

No

Yes

ADC

No

Yes (8-bit)

No

Yes (10-bit)

LVD

3 Levels (CFlash and XFlash levels may differ, refer to the datasheet)

CSS

Yes (fixed frequency) -> CRSR

No

Emulator

ST7MDT1-EMU2B and ST7MTD1-DVP2

ST7MDT10-EMU3

Programming

ST7MDT1-EPB2 and ST7MTD1-DVP2

ST7MDT10-EPB and ST7MDT10-

DVP3

1