MC68HC705C8ACFN Freescale Semiconductor, MC68HC705C8ACFN Datasheet - Page 8

IC MCU 4MHZ 8K OTP 44-PLCC

MC68HC705C8ACFN

Manufacturer Part Number
MC68HC705C8ACFN
Description
IC MCU 4MHZ 8K OTP 44-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705C8ACFN

Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
304 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-

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Table of Contents
Technical Data
8
2.5
2.6
2.7
3.1
3.2
3.3
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.4
4.1
4.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.4
5.1
5.2
Freescale Semiconductor, Inc.
For More Information On This Product,
RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
EPROM/OTPROM (PROM) . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Bootloader ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Interrupt Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Index Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Program Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Condition Code Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Software Interrupt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
External Interrupt (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Port B Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Capture/Compare Timer Interrupts . . . . . . . . . . . . . . . . . . .55
SCI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
SPI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Section 3. Central Processor Unit (CPU)
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Table of Contents
Section 4. Interrupts
Section 5. Resets
MC68HC705C8A — Rev. 3
MOTOROLA

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