MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 359

• Manufacturer Part Number: MC908MR8MPE
• Description: IC MCU 8BIT 8K FLASH 28-PDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908MR8MPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Technical Data — MC68HC908MR8
A — See accumulator (A).
accumulator (A) — An 8-bit general-purpose register in the CPU08. The CPU08 uses the
acquisition mode — A mode of PLL operation during startup before the PLL locks on a
address bus — The set of wires that the CPU or DMA uses to read and write memory locations.
addressing mode — The way that the CPU determines the operand address for an instruction.
ALU — See arithmetic logic unit (ALU).
arithmetic logic unit (ALU) — The portion of the CPU that contains the logic circuitry to perform
asynchronous — Refers to logic circuits and operations that are not synchronized by a common
baud rate — The total number of bits transmitted per unit of time.
BCD — See binary-coded decimal (BCD)
binary — Relating to the base 2 number system
binary number system — The base 2 number system, having two digits, 0 and 1. Binary
binary-coded decimal (BCD) — A notation that uses 4-bit binary numbers to represent the 10
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
accumulator to hold operands and results of arithmetic and logic operations.
frequency. Also see tracking mode.
The M68HC08 CPU has 16 addressing modes.
arithmetic, logic, and manipulation operations on operands.
reference signal
arithmetic is convenient in digital circuit design because digital circuits have two permissible
voltage levels, low and high. The binary digits 0 and 1 can be interpreted to correspond to the
two digital voltage levels.
decimal digits and that retains the same positional structure of a decimal number. For
example,
234 (decimal) = 0010 0011 0100 (BCD)
Glossary
Technical Data
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