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MC68HC05C9E Datasheet, PDF (11/106 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Chapter 1
General Description
1.1 Introduction
The MC68HC05C9E HCMOS (high-density complementary metal-oxide semiconductor) microcontroller
is a member of the M68HC05 Family. The MC68HC05C9E memory map consists of 15,936 bytes of user
ROM and 352 bytes of RAM. The MC68HC05C9E includes a serial communications interface, a serial
peripheral interface, and a 16-bit capture/compare timer.
1.2 Features
Features of the MC68HC05C9E include:
⢠M68HC05 CPU
⢠Mask programmable interrupt capability on port B
⢠Software programmable external interrupt sensitivity
⢠15,936 bytes of read-only memory (ROM)
⢠352 bytes of random-access memory (RAM)
⢠Memory mapped input/output (I/O)
⢠31 bidirectional I/O lines with high current sink and source
on PC7
⢠Asynchronous serial communications interface (SCI)
⢠Synchronous serial peripheral interface (SPI)
⢠16-Bit capture/compare timer
⢠Computer operating properly (COP) watchdog timer and clock monitor
⢠Power-saving wait and stop modes
⢠On-chip crystal oscillator connections
⢠Single 4.5 volts to 5.5 volts power supply requirement
⢠ROM contents security(1) feature
⢠Available packages:
â 40-pin dual in-line (DIP)
â 44-pin quad flat pack (QFP)
1.3 Mask Options
Eight mask options are available to select external interrupt capability (including an internal pullup device)
on each of the port B pins.
1. No security feature is absolutely secure. However, Freescaleâs strategy is to make reading or copying the ROM difficult for
unauthorized users.
MC68HC05C9E Advance Information Data Sheet, Rev. 0.1
Freescale Semiconductor
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