MC68HC705CT4 Datasheet, PDF (16/152 Pages) Freescale Semiconductor, Inc – General Release Specification

Freescale Semiconductor, Inc.
General Description
1.2 Introduction
The MC68HC705CT4 is a 44-pin member of the M68HC05 Family that
supports the cordless telephone applications. The memory map
includes 5136 bytes of user EPROM, 240 bytes of boot ROM, and 256
bytes of RAM. The MCU has three 8-bit input/output (I/O) ports: A, B, C;
and one 7-bit I/O, port D. Port C has pullup options and keyscan
capability. The MC68HC705CT4 includes a bird core, a bird timer, a
synchronous serial I/O (SSI), 16-bit timer, a dual 60-MHz phase-lock
loop (PLL), and an on-chip computer operating properly (COP)
watchdog circuit.
Features of the MC68HC705CT4 include:
• Low Cost
• HC05 Core
• 44-Pin Plastic Leaded Chip Carrier (PLCC) Package
• 10.24-MHz On-Chip Crystal Oscillator
• 2.048-MHz Internal CPU Speed
• 5136 Bytes of User EPROM
• 240 Bytes of Boot ROM
• 256 Bytes of On-Chip RAM
• 16-Bit Timer
• 31 Bidirectional I/O Lines
• Power-Saving Stop and Wait Modes
• Core Timer
• Dual 60-MHz PLL
• Simple Serial with Bidirectional Data (SSI)
• Keyscan Interrupt with Pullups on Port C
General Release Specification
MC68HC705CT4 — Rev. 2.0
16
General Description
MOTOROLA
For More Information On This Product,
Go to: www.freescale.com