MC68HC705J1ACDW Freescale Semiconductor, MC68HC705J1ACDW Datasheet - Page 73

IC MCU 4MHZ 1.2K OTP 20-SOIC

MC68HC705J1ACDW

Manufacturer Part Number
MC68HC705J1ACDW
Description
IC MCU 4MHZ 1.2K OTP 20-SOIC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705J1ACDW

Core Processor
HC05
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
14
Program Memory Size
1.2KB (1.2K x 8)
Program Memory Type
OTP
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
4.4 Interrupts
4.4.1 Software Interrupt
4.4.2 External Interrupt
MC68HC705J1A — Rev. 4.0
These sources can generate interrupts:
An interrupt temporarily stops the program sequence to process a
particular event. An interrupt does not stop the operation of the
instruction being executed, but takes effect when the current instruction
completes its execution. Interrupt processing automatically saves the
CPU registers on the stack and loads the program counter with a
user-defined interrupt vector address.
The software interrupt (SWI) instruction causes a non-maskable
interrupt.
An interrupt signal on the IRQ/V
request. When the CPU completes its current instruction, it tests the IRQ
latch. If the IRQ latch is set, the CPU then tests the I bit in the condition
code register. If the I bit is clear, the CPU then begins the interrupt
sequence.
Freescale Semiconductor, Inc.
For More Information On This Product,
Software interrupt (SWI) instruction
External interrupt pins:
– IRQ/V
– PA0–PA3
Timer:
– Real-time interrupt flag (RTIF)
– Timer overflow flag (TOF)
Go to: www.freescale.com
Resets and Interrupts
PP
PP
pin latches an external interrupt
Resets and Interrupts
Technical Data
Interrupts

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