MCU Microcontroller Unit IC MCU 2.1MHZ 15K OTP 52-PLCC MC68HC705B16CFN MOTOROLA

One Time Program Memory, MC68HC705B16 - Motorola, Inc - High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
 

Description:

The MC68HC705B16CFN microcomputer (MCU) is a member of Motorola’s MC68HC05 family of

low-cost single chip microcomputers. This 8-bit MCU contains an on-chip oscillator, CPU, RAM,

ROM, EEPROM, A/D converter, pulse length modulated outputs, I/O, serial communications

interface, programmable timer system and watchdog. The fully static design allows operation at

frequencies down to dc to further reduce the already low power consumption to a few micro-amps.

Applications:

Fully static design featuring the industry standard M68HC05 family CPU core

• On chip crystal oscillator with divide by 2 or a software selectable divide by 32 option (SLOW

mode)

• 2.1 MHz internal operating frequency at 5V; 1.0 MHz at 3V

• High speed version available

• 176 bytes of RAM

• 5936 bytes of user ROM plus 14 bytes of user vectors

• 256 bytes of byte erasable EEPROM with internal charge pump and security bit

• Write/erase protect bit for 224 of the 256 bytes EEPROM

• Self test/bootstrap mode

• Power saving STOP, WAIT and SLOW modes

• Three 8-bit parallel I/O ports and one 8-bit input-only port

• Software option available to output the internal E-clock to port pin PC2

• 16-bit timer with 2 input captures and 2 output compares

• Computer operating properly (COP) watchdog timer

• Serial communications interface system (SCI) with independent transmitter/receiver baud rate

selection; receiver wake-up function for use in multi-receiver systems

• 8 channel A/D converter

• 2 pulse length modulation systems which can be used as D/A converters

• One interrupt request input plus 4 on-board hardware interrupt sources

• Available in 52-pin plastic leaded chip carrier (PLCC), 64-pin quad flat pack (QFP) and 56-pin

shrink dual in line (SDIP) packages

• Complete development system support available using the MMDS05 development station with

the M68HC05B32EM emulation module

• Extended operating temperature range of -40 to +125 °C

Specifications: