MC908QY4ACPE Electronic IC Chips microchips and integrated circuits

 

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MC68HC908QY4A

MC68HC908QT4A

MC68HC908QY2A

MC68HC908QT2A

MC68HC908QY1A

MC68HC908QT1A

 

M68HC08 Microcontrollers

 

Introduction

The MC68HC908QY4A 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.

 

Features

• High-performance M68HC08 CPU core

• Fully upward-compatible object code with M68HC05 Family

• 5-V and 3-V operating voltages (V_DD)

• 8-MHz internal bus operation at 5 V, 4-MHz at 3 V

 

• Trimmable internal oscillator

  – Software selectable 1 MHz, 2 MHz, or 3.2 MHz internal bus operation

  – 8-bit trim capability

  – ±25% untrimmed

  – Trimmable to approximately 0.4%⁽¹⁾

 

• Software selectable crystal oscillator range, 32–100 kHz, 1–8 MHz and 8–32 MHz

• Software configurable input clock from either internal or external source

• Auto wakeup from STOP capability using dedicated internal 32-kHz RC or bus clock source

 

• On-chip in-application programmable FLASH memory

  – Internal program/erase voltage generation

  – Monitor ROM containing user callable program/erase routines

  – FLASH security⁽²⁾

 

• On-chip random-access memory (RAM)

• 2-channel, 16-bit timer interface (TIM) module

• 6-channel, 10-bit analog-to-digital converter (ADC) with internal bandgap reference channel (ADC10)

 

• Up to 13 bidirectional input/output (I/O) lines and one input only:

  – Six shared with KBI

  – Six shared with ADC

  – Two shared with TIM

  – One input only shared with IRQ

  – High current sink/source capability on all port pins

  – Selectable pullups on all ports, selectable on an individual bit basis

  – Three-state ability on all port pins

 

• 6-bit keyboard interrupt with wakeup feature (KBI)

  – Programmable for rising/falling or high/low level detect

• Low-voltage inhibit (LVI) module features:

  – Software selectable trip point

 

• System protection features:

  – Computer operating properly (COP) watchdog

  – Low-voltage detection with reset

  – Illegal opcode detection with reset

  – Illegal address detection with reset

 

• External asynchronous interrupt pin with internal pullup (IRQ) shared with general-purpose input pin

• Master asynchronous reset pin with internal pullup (RST) shared with general-purpose input/output

  (I/O) pin

• Memory mapped I/O registers

• Power saving stop and wait modes

 

• MC68HC908QY4A, MC68HC908QY2A and MC68HC908QY1A are available in these packages:

  – 16-pin plastic dual in-line package (PDIP)

  – 16-pin small outline integrated circuit (SOIC) package

  – 16-pin thin shrink small outline packages (TSSOP)

 

• MC68HC908QT4A, MC68HC908QT2A and MC68HC908QT1A are available in these packages:

  – 8-pin PDIP

  – 8-pin SOIC

  – 8-pin dual flat no lead (DFN) package

 

Features of the CPU08 include the following:

• Enhanced HC05 programming model

• Extensive loop control functions

• 16 addressing modes (eight more than the HC05)

• 16-bit index register and stack pointer

• Memory-to-memory data transfers

 

• Fast 8 × 8 multiply instruction

• Fast 16/8 divide instruction

• Binary-coded decimal (BCD) instructions

• Optimization for controller applications

• Efficient C language support

 

Absolute Maximum Ratings

Maximum ratings are the extreme limits to which the microcontroller unit (MCU) can be exposed without permanently damaging it.

Characteristic(1)	Symbol	Value	Unit
Supply voltage	VDD	–0.3 to +6.0	V
Input voltage	VIN	VSS –0.3 to VDD +0.3	V
Mode entry voltage, IRQ pin	VTST	VSS –0.3 to +9.1	V
Maximum current per pin excluding PTA0–PTA5, VDD, and VSS	I	±15	mA
Maximum current for pins PTA0–PTA5	IPTA0—IPTA5	±25	mA
Storage temperature	TSTG	–55 to +150	°C
Maximum current out of VSS	IMVSS	100	mA
Maximum current into VDD	IMVDD	100	mA

1. Voltages references to V_SS.

 

MCU Block Diagram

 

Figure 1. shows the structure of the MC68HC908QY4A.