MC68HC908RF2 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

View to exact match

MC68HC908RF2

HCMOS Microcontroller Unit

Motorola => Freescale 

M68HC08 CPU

CPU

REGISTERS

ARITHMETIC/LOGIC

UNIT (ALU)

INTERNAL BUS

SECURITY

MODULE

CONTROL AND STATUS REGISTERS — 32 BYTES

USER FLASH — 2031 BYTES

USER RAM — 128 BYTES

MONITOR ROM — 768 BYTES

USER FLASH VECTOR SPACE — 14 BYTES

OSC2

OSC1

SOFTWARE SELECTABLE

INTERNAL OSCILLATOR

MODULE

COMPUTER OPERATING PROPERLY

MODULE

LOW-VOLTAGE INHIBIT

MODULE

2-CHANNEL TIMER

MODULE

RST*

IRQ1*

VDD

VSS

SYSTEM INTEGRATION

MODULE

KEYBOARD/INTERRUPT

MODULE

POWER-ON RESET

MODULE

POWER

UHF

TRANSMITTER

* PIN CONTAINS INTEGRATED PULLUP RESISTOR

** HIGH CURRENT SINK PIN

‡ PIN CONTAINS SOFTWARE SELECTABLE PULLUP RESISTOR

Figure 1-1. MC68HC908RF2 MCU Block Diagram

VCC

MODE

ENABLE

DATA

BAND

RFOUT

GNDRF

REXT

XTAL1

XTAL0

DATACLK

CFSK

PTA7**

PTA6/KBD6‡**

PTA5/KBD5‡**

PTA4/KBD4‡**

PTA3/KBD3‡**

PTA2/KBD2‡**

PTA1/KBD1‡**

PTA0**

PTB3/TCLK

PTB2/TCH0

PTB1

PTB0/MCLK

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