ST9040 Datasheet (STMicroelectronics)

ST9040, 16K ROM HCMOS MCU

5 1.2 PIN DESCRIPTION .

6 1.2.1 I/O Port Alternate Functions .

6 1.3 MEMORY .

www.DataSheet4U.com ® ST9040 16K ROM HCMOS MCU WITH EEPROM, RAM AND A/D CONVERTER Register oriented 8/16 bit CORE with RUN, WFI and HALT modes Minimum instruction cycle time : 500ns (12MHz internal) Internal Memory : ROM 16K bytes RAM 256 bytes EEPROM 512 bytes 224 general purpose registers available as RAM, accumulators or index registers (register file) 80-pin PQFP package for ST9040Q 68-lead PLCC package for ST9040C DMA controller, Interrupt handler and Serial Peripheral Int

ST9040 Features

* Up to 56 fully programmable I/O pins Up to 8 external plus 1 non-maskableinterrupts 16 bit Timer with 8 bit Prescaler, able to be used as a WatchdogTimer Two 16 bit Multifunction Timers, each with an 8 bit prescaler and 13 operating modes 8 channel 8 bit Analog to Digital Converter, with Analog