ST72E121 datasheet(92/92 Pages) STMICROELECTRONICS

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ST72E121 ST72T121

8 SUMMARY OF CHANGES

Information furnished is believed to be accurate and reliable. However, STMi croelectronics 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 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 criti cal components in life support devices or systems without the express written approval of STMicroelectronics.

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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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Change Description (Rev. 1.5 to 1.6)

Page

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”.

18 and 24

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

31, 44, 57, 71

Changed 16-bit Timer chapter

33 to 49

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

62 to 74

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