MC68HC05P4

HCMOS MICROCONTROLLER UNIT

MC68HC05P4

HCMOS MICROCONTROLLER UNIT;

MC68HC05P4A

Microcontroller; Low-Cost, M68HC05 Core\n\n\n\n?28-pin package\n\n\n?On-chip oscillator with RC (resistor capacitor) or crystal/ceramicresonator mask options\n\n\n?4160 bytes of user read-only memory (ROM), including 16 uservector locations\n\n\n?ROM security feature 1\n\n\n?176 bytes of on-chip random-access memory (RAM)\n\n\n?16-bit timer\n\n\n?20 bidirectional input/output (I/O) lines, one input-only line\n\n\n?Mask programmable keyscan (pullups and interrupt) on eight portpins (PA0&–PA7)\n\n\n?Two port pins with high current drive capability\n\n;

Overview The MC68HC05P4A is a 28-pin MCU (microcontroller unit) based on the MC68HC05P4. The memory map includes 4160 bytes of user ROM and 176 bytes of RAM. The MCU has two 8-bit input/output (I/O) ports, A and C. Port B has three I/O pins and port D has two pins, one that is I/O and the other input only. The MC68HC05P4A includes a simple serial I/O peripheral (SIOP) and an on-chip mask programmable computer operating properly (COP) watchdog circuit.\nArchived content is no longer updated and is made available for historical reference only.\n

MC68HC05P4A

Microcontrollers

GeneralDescription 1.1Introduction TheMC68HC05P4Aisa28-pinMCU(microcontrollerunit)basedontheMC68HC05P4.Thememorymapincludes4160bytesofuserROMand176bytesofRAM.TheMCUhastwo8-bitinput/output(I/O)ports,AandC.PortBhasthreeI/OpinsandportDhastwopins

MC68HC05P4A

Microcontrollers

MC68HC05P4DW

HCMOS MICROCONTROLLER UNIT

MC68HC05P4DW

HCMOS MICROCONTROLLER UNIT;

MC68HC05P4P

HCMOS MICROCONTROLLER UNIT