MC68HC08JB1 Datasheet, PDF (23/216 Pages) Motorola, Inc – Microcontrollers

Technical Data — MC68HC08JB1
Section 1. General Description
1.1 Contents
1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.4 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
1.5.1
1.5.2
1.5.3
Power Supply Pins (V_DD, V_SS) . . . . . . . . . . . . . . . . . . . . . . . 27
Voltage Regulator Out (V_REG) . . . . . . . . . . . . . . . . . . . . . . . 28
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . . 29
1.5.4 External Reset Pin (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.5.5 External Interrupt Pins (IRQ, PTE4/D–) . . . . . . . . . . . . . . . . 29
1.5.6 Port A Input/Output (I/O) Pins (PTA7/KBA7–PTA0/KBA0). . 29
1.5.7 Port C I/O Pins (PTC0). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.5.8 Port D I/O Pins (PTD0/1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.5.9 Port E I/O Pins (PTE4/D–, PTE3/D+, PTE1/TCH0) . . . . . . . 30
1.2 Introduction
The MC68HC08JB1 is a member of the low-cost, high-performance
M68HC08 Family of 8-bit microcontroller units (MCUs). 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.
MC68HC08JB1 — Rev. 2.1
Freescale Semiconductor
Technical Data
23