MC908JB16DWE Datasheet, PDF(29/332 Page) Freescale Semiconductor, Inc – Microcontrollers

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MC908JB16DWE Datasheet, PDF (29/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

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Technical Data â MC68HC908JB16

Section 1. General Description

1.1 Contents

1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1.4 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1.5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1.6 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

1.6.1

1.6.2

1.6.3

Power Supply Pins (VDD, VSS) . . . . . . . . . . . . . . . . . . . . . . . 34

Voltage Regulator Output Pin (VREG). . . . . . . . . . . . . . . . . . 34

Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . . 35

1.6.4 External Reset Pin (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

1.6.5 External Interrupt Pins (IRQ, PTE4/Dâ) . . . . . . . . . . . . . . . . 35

1.6.6

1.6.7

1.6.8

1.6.9

CGM Power Supply Pins (VDDA, VSSA0, VSSA1) . . . . . . . . . 36

CGM Voltage Regulator Out (VREGA0) . . . . . . . . . . . . . . . . . 36

CGM Voltage Regulator In (VREGA1) . . . . . . . . . . . . . . . . . . 36

External Filter Capacitor Pins (CGMXFC1, CGMXFC2) . . . 36

1.6.10 CGM Clock Output Pins (CGMOUT1, CGMOUT2) . . . . . . . 36

1.6.11 Port A Input/Output (I/O) Pins (PTA7/KBA7âPTA0/KBA0). . 36

1.6.12 Port C I/O Pins (PTC1/RxD, PTC0/TxD) . . . . . . . . . . . . . . . 37

1.6.13 Port D I/O Pins (PTD5âPTD0) . . . . . . . . . . . . . . . . . . . . . . . 37

1.6.14 Port E I/O Pins (PTE4/Dâ, PTE3/D+, PTE2/T2CH01,

PTE1/T1CH01, PTE0/TCLK). . . . . . . . . . . . . . . . . . . . . . 37

1.2 Introduction

The MC68HC908JB16 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.

MC68HC908JB16 â Rev. 1.1

Freescale Semiconductor

General Description

Technical Data

29

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