ST72E121J4D0 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72E121J4D0

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS

STMicroelectronics 

ST72E121 ST72T121

8 SUMMARY OF CHANGES

Change Description (Rev. 1.5 to 1.6)

Added new External Connections section

Removed RP external resistor

Changed ORed to ANDed in External interrupts paragraph, to read “If several input pins, con-

nected to the same interrupt vector, are configured as interrupts, their signals are logically AN-

Ded before entering the edge/level detection block”.

Added note ”Any modification of one of these two bits resets the interrupt request related to

this interrupt vector.”

Added clamping diodes to I/O pin figure and table

Added sections on low power modes and interrupts to peripheral descriptions

Changed 16-bit Timer chapter

Added details to description of FOLV1 and FOLV2 bits

Added Reset characteristics section

Added min. value for VLVDUP

Removed ST72121 ROM device (supported by ST72124)

Change Description (Rev. 1.6 to 1.7)

SPR2 bit reinstated in SPI chapter

Page

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15

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31, 44, 57, 71

33 to 49

45

84

84

62 to 74

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by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject

to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not

authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics.

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©1999 STMicroelectronics - All Rights Reserved.

Purchase of I2C Components by STMicroelectronics conveys a license under the Philips I2C Patent. Rights to use these components in an

I2C system is granted provided that the system conforms to the I2C Standard Specification as defined by Philips.

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