MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 195

• Manufacturer Part Number: MC812A4CPVE8
• Description: IC MCU 16BIT EEPROM 4K 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC812A4CPVE8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 83
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: EEPROM
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Processor Series: HC812A
• Core: HC12
• Data Bus Width: 16 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Controller Family/series: 68HC12
• No. Of I/o's: 91
• Eeprom Memory Size: 4KB
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Chapter 16
Analog-to-Digital Converter (ATD)
16.1 Introduction
The analog-to-digital converter (ATD) is an 8-channel, 8-bit, multiplexed-input, successive approximation
analog-to-digital converter, accurate to ±1 least significant bit (LSB). It does not require external sample
and hold circuits because of the type of charge redistribution technique used. The ATD converter timing
can be synchronized to the system P-clock. The ATD module consists of a 16-word (32-byte)
memory-mapped control register block used for control, testing, and configuration.
16.2 Features
Features of the ATD module include:
Freescale Semiconductor
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Eight multiplexed input channels
Multiplexed-input successive approximation
8-bit resolution
Single or continuous conversion
Conversion complete flag with CPU interrupt request
Selectable ATD clock
MC68HC812A4 Data Sheet, Rev. 7
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