MC68HC908GT8CFB Freescale Semiconductor, MC68HC908GT8CFB Datasheet - Page 21

• Manufacturer Part Number: MC68HC908GT8CFB
• Description: IC MCU 8K FLASH 8MHZ 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GT8CFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 34
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Chapter 1
General Description
1.1 Introduction
The MC68HC908GT16, MC68HC908GT8, and MC68HC08GT16 are members 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.
All references to the MC68HC908GT16 in this data book apply equally to the MC68HC908GT8, unless
otherwise stated.
This revision introduces the MC68HC08GT16, the ROM part equivalent to the MC68HC908GT16. The
entire data book applies to this ROM device, with the exceptions outlined in
1.2 Features
For convenience, features have been organized to reflect:
1.2.1 Standard Features of the MC68HC908GT16/MC68HC908GT8
1. 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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Standard features of the MC68HC908GT16/MC68HC908GT8
Features of the CPU08
High-performance M68HC08 architecture optimized for C-compilers
Fully upward-compatible object code with M6805, M146805, and M68HC05 Families
8-MHz internal bus frequency
Internal oscillator requiring no external components:
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Flash program memory security
On-chip programming firmware for use with host personal computer which does not require high
voltage for entry
In-system programming (ISP)
Software selectable bus frequencies
±25 percent accuracy with trim capability to ±4 percent
Clock monitor
Option to allow use of external clock source or external crystal/ceramic resonator
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
(1)
Appendix A
MC68HC08GT16.
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