MB91F583ASH datasheet(4/176 Pages) CYPRESS

4 / 176 page

Document Number: 002-04665 Rev *A

Page 3 of 175

MB91580M/S Series

 Clock Supervisor



Anomaly supervisory feature (by damaged

quartz, etc.) of external main oscillation (4MHz)



When anomaly is detected, clock is switched to

CR.

 Up/ down counter: 2 channels



8/16-bit Up/ down counter

 Base timer: 2 channels



16-bit timer



Any of four PWM/PPG/PWC/reload timer

functions can be selected and used.



As for the functions of PWC and reload timer, 2

channels of cascade mode can be used as 32-bit

timer.

 CRC generation

 Watchdog timer



Hardware watchdog



Software watchdog

 NMI

 Interrupt controller

 Interrupt request batch read

Multiple interrupts from peripherals can be read by a

series of registers.

 I/O relocation (MB91F583AM/F584AM/F585AM)

Change of pin position of peripheral functions

 Low-power consumption mode



Sleep/Stop/Watch



Stop (Power shutdown)/Watch (Power shutdown)

 Power-on reset

 Low-voltage detection reset (external low-voltage

detection)

 Low-voltage detection reset (internal low-voltage

detection)

 Package

MB91F583AM/F584AM/F585AM:

LQFP-100

MB91F583AS/F584AS/F585AS:

LQFP-64

 CMOS 90 nm technology

 Power supplies



Single 5V power supply



The voltage step-down circuit brings the 5.0V

down to generate 1.2V internally



I/O 5.0V

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