ST9040 Datasheet, PDF (1/56 Pages) STMicroelectronics – 16K ROM HCMOS MCU WITH EEPROM, RAM AND A/D CONVERTER

®
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 Pe-
ripheral Interface as standard 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 Watchdogs and external references
Serial Communications Interface with asynchro-
nous and synchronous capability
Rich Instruction Set and 14 Addressingmodes
Division-by-Zero trap generation
Versatile developmenttools, including assembler,
linker, C-compiler, archiver, graphic oriented de-
buggerand hardware emulators
Real Time Operating System
Windowed and One Time Programmable EPROM
parts available for prototyping and pre-production
development phases
Pin to pin compatible with ST9036
PQFP80
PLCC68
(Ordering Information at the end of the Datasheet)
February 1997
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