3/3

ST7277

1.2 DEVICE SUMMARY

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no

responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third

parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights

of SGS-THOMS ON Microelectronics. Specifications mentioned in this publication are subject to change without notice.

This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products

are not authorized for use as critical components in life support devices or systems without the express written approval

of SGS-THOMSON Microelectronics.

©1998 SGS-THOMSON Microelectronics - All Rights Reserved.

SGS-THOMSON Microelectronics GROUP OF COMPANIES

Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore

Spain - Sweden - Swit zerland - Taiwan - Thailand - United Kingdom - U.S.A.

PSDIP56

ST72771N9B1

ST72771N6B1

ST72771N5B1

ST72771N4B1

PQFP64

ST72771R9Q1

ST72771R6Q1

ST72771R5Q1

ST72771R4Q1

ROM (bytes)

60K

32K

24K

16K

RAM (bytes)

2K

1K

768

512

ADC

8 channels

8 channels

8 channels

8 channels

16-Bit Timer

1

1

1

1

I2C Bus

one multimaster

one multimaster

one multimaster

one multimaster

DDC/DMA

yes

yes

yes

yes

Sync Processor

yes

yes

yes

yes

PWM

999

9

I/O

32

32

32

32

USB

yes

yes

yes

yes

IR

yes

yes

yes

yes

SCI

yes

yes

yes

yes

EPROM Device

ST72E771N9D1 (CSDIP56) or ST72E771R9G1 (CQFP64)