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ST90R40 Datasheet Romless Hcmos Mcu

Manufacturer: STMicroelectronics

Overview: ST90R40 ROMLESS HCMOS MCU WITH EEPROM, RAM AND AID CONVERTER • Register oriented 8/16 bit CORE with RUN, WFI and HALT modes • Minimum instruction cycle time:500ns (12M Hz internal) • ROMiess to allow maximum external.

General Description

Pin Name 1 AVss 2 AVss 3 NC 4 P44/AIN4 5 P57 6 P56 7 P55 8 P54 9 INT7 10 INTO 11 P53 12 NC 13 P52 14 P51 15 P50 16 OSCOUT 17 Vss 18 Vss 19 NC 20 OSCIN 21 RESET 22 P37/T10UTB 23 P36/T11NB 24 P35/T10UTA Pin Name 25 P34/T11NA 26 P33fTOOUTB 27 P32fTOINB 28 P31fTOOUTA 29 P30/P/DfTOINA 30 A15 31 A14 32 NC 33 A13 34 A12 35 A11 36 A10 37 A9 38 AS 39 AO/DO 40 A1/D1 Pin Name 64 P20/NMI 63 NC 62 Vss 61 P70/SIN 60 P71/SOUT 59 P72/IN

Key Features

  • 40 fully programmable 1/0 pins.
  • Up to 8 external plus 1 non-maskable interrupts.
  • 16 bit Timer with 8 bit Prescaler, able to be used as a Watchdog Timer.
  • 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 asynchronous and synchronous capability.
  • Rich Instruction Set.

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