MC908QT1 FREESCALE [Freescale Semiconductor, Inc], MC908QT1 Datasheet - Page 17

• Manufacturer Part Number: MC908QT1
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 1
General Description
1.1 Introduction
The MC68HC908QY4 is a member of the low-cost, high-performance M68HC08 Family of 8-bit
microcontroller units (MCUs). The M68HC08 Family is a Complex Instruction Set Computer (CISC) with
a Von Neumann architecture. 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.
1.2 Features
Features include:
1. The oscillator frequency is guaranteed to ±5% over temperature and voltage range after trimming.
2. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the FLASH difficult for
Freescale Semiconductor
unauthorized users.
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High-performance M68HC08 CPU core
Fully upward-compatible object code with M68HC05 Family
5-V and 3-V operating voltages (V
8-MHz internal bus operation at 5 V, 4-MHz at 3 V
Trimmable internal oscillator
–
–
–
Auto wakeup from STOP capability
Configuration (CONFIG) register for MCU configuration options, including:
–
In-system FLASH programming
FLASH security
3.2 MHz internal bus operation
8-bit trim capability allows 0.4% accuracy
± 25% untrimmed
Low-voltage inhibit (LVI) trip point
MC68HC908QY1
MC68HC908QY2
MC68HC908QY4
MC68HC908QT1
MC68HC908QT2
MC68HC908QT4
Device
(2)
Table 1-1. Summary of Device Variations
MC68HC908QY/QT Family Data Sheet, Rev. 5
Memory Size
1536 bytes
1536 bytes
4096 bytes
1536 bytes
1536 bytes
4096 bytes
DD
FLASH
)
0.4
(1)
Analog-to-Digital
Converter
4 ch, 8 bit
4 ch, 8 bit
4 ch, 8 bit
4 ch, 8 bit
—
—
16 pins
16 pins
16 pins
Count
8 pins
8 pins
8 pins
Pin
17