MC68HC908RF2 Datasheet, PDF (25/254 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Advance Information — MC68HC908RF2
Section 1. General Description
1.1 Contents
1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
1.4 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
1.5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.5.1
1.5.2
Power Supply Pins (V_DD and V_SS) . . . . . . . . . . . . . . . . . . . .29
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . .30
1.5.3 External Reset (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.5.4 External Interrupt Pin (IRQ1) . . . . . . . . . . . . . . . . . . . . . . . .30
1.5.5 Port A Input/Output Pins
(PTA7, PTA6/KBD6–PTA1/KBD1, and PTA0) . . . . . . . . 31
1.5.6 Port B Input/Output Pins (PTB3/TCLK,
PTB2/TCH0, PTB1, and PTB0/MCLK) . . . . . . . . . . . . . . 31
1.5.7 UHF Transmitter Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
1.2 Introduction
The MC68HC908RF2 MCU is a member of the low-cost,
high-performance M68HC08 Family of 8-bit microcontroller units
(MCUs). Optimized for low-power operation and available in a small
32-pin low-profile quad flat pack (LQFP), this MCU is well suited for
remote keyless entry (RKE) transmitter designs.
The M68HC08 Family is based on the customer-specified integrated
circuit (CSIC) design strategy. All MCUs in the family use the enhanced
M68HC08 central processor unit (CPU08) and are available with a
variety of modules, memory sizes and types, and package types.
MC68HC908RF2 — Rev. 1
MOTOROLA
General Description
Advance Information
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