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MC68HC08AS32CAFN bảng dữ liệu(PDF) 7 Page - Freescale Semiconductor, Inc

tên linh kiện MC68HC08AS32CAFN
Giải thích chi tiết về linh kiện  Microcontrollers
PDF  296 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
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MC68HC08AS32CAFN bảng dữ liệu(HTML) 7 Page - Freescale Semiconductor, Inc

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MC68HC08AS32A — Rev. 1.1
Data Sheet
Freescale Semiconductor
7
Data Sheet — MC68HC08AS32A —
Table of Contents
Section 1. General Description
1.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.3
MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.4
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.4.1
Power Supply Pins (VDD and VSS) . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.4.2
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.4.3
External Reset Pin (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.4.4
External Interrupt Pin (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.4.5
Analog Power Supply Pin (VDDA/VDDAREF) . . . . . . . . . . . . . . . . . . . 24
1.4.6
ADC High Reference Pin (VREFH) . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.4.7
Analog Ground Pin (VSSA/VREFL) . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.4.8
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . . . . . . . . 25
1.4.9
Port A Input/Output (I/O) Pins (PTA7–PTA0) . . . . . . . . . . . . . . . . . . 25
1.4.10
Port B I/O Pins (PTB7/ATD7–PTB0/ATD0) . . . . . . . . . . . . . . . . . . . 25
1.4.11
Port C I/O Pins (PTC4–PTC0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.4.12
Port D I/O Pins (PTD6/ATD14/TCLKA–PTD0/ATD8) . . . . . . . . . . . . 25
1.4.13
Port E I/O Pins (PTE7/SPSCK–PTE0/TxD) . . . . . . . . . . . . . . . . . . . 25
1.4.14
Port F I/O Pins (PTF3/TCH5–PTF0/TCH2) . . . . . . . . . . . . . . . . . . . 26
1.4.15
J1850 Transmit Pin Digital (BDTxD). . . . . . . . . . . . . . . . . . . . . . . . . 26
1.4.16
J1850 Receive Pin Digital (BDRxD) . . . . . . . . . . . . . . . . . . . . . . . . . 26
Section 2. Memory
2.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.2
Input/Output (I/O) Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.3
Random-Access Memory (RAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.4
Read-Only Memory (ROM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.5
Electrically Erasable Programmable ROM (EEPROM) . . . . . . . . . . . . . 40
2.5.1
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.5.1.1
EEPROM Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.5.1.2
EEPROM Timebase Requirements . . . . . . . . . . . . . . . . . . . . . . . 41
2.5.1.3
EEPROM Program/Erase Protection . . . . . . . . . . . . . . . . . . . . . . 42
2.5.1.4
EEPROM Block Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.5.1.5
EEPROM Programming and Erasing . . . . . . . . . . . . . . . . . . . . . . 43
2.5.1.6
Program/Erase Using AUTO Bit . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.5.1.7
EEPROM Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.5.1.8
EEPROM Erasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45



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