mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 27

• Manufacturer Part Number: mc68hc908jb8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
1.1 Contents
1.2 Introduction
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
1.2
1.3
1.4
1.5
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.5.7
1.5.8
1.5.9
1.5.10
The MC68HC908JB8 is a member of the low-cost, high-performance
M68HC08 Family of 8-bit microcontroller units (MCUs). 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.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Power Supply Pins (V
Voltage Regulator Out (V
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . . 35
External Reset Pin (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
External Interrupt Pins (IRQ, PTE4/D–) . . . . . . . . . . . . . . . . 35
Port A Input/Output (I/O) Pins (PTA7/KBA7–PTA0/KBA0). . 36
Port B (I/O) Pins (PTB7–PTB0) . . . . . . . . . . . . . . . . . . . . . . 36
Port C I/O Pins (PTC7–PTC0) . . . . . . . . . . . . . . . . . . . . . . . 36
Port D I/O Pins (PTD7–PTD0) . . . . . . . . . . . . . . . . . . . . . . . 36
Port E I/O Pins (PTE4/D–, PTE3/D+, PTE2/TCH1,
PTE1/TCH0, PTE0/TCLK). . . . . . . . . . . . . . . . . . . . . . . . 36
General Description
Section 1. General Description
DD
, V
REG
SS
) . . . . . . . . . . . . . . . . . . . . . . . 34
) . . . . . . . . . . . . . . . . . . . . . . . 34
Technical Data
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