MC68HC705C8ACB Freescale Semiconductor, MC68HC705C8ACB Datasheet - Page 72

• Manufacturer Part Number: MC68HC705C8ACB
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC705C8ACB

• Cpu Family: HC05
• Device Core Size: 8b
• Frequency (max): 2.1MHz
• Interface Type: SCI/SPI
• Program Memory Type: EPROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 304Byte
• # I/os (max): 24
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 42
• Package Type: SPDIP
• Lead Free Status / Rohs Status: Not Compliant

Low-Power Modes
Technical Data
72
NOTE:
If the clock monitor is enabled (CME = 1), the STOP instruction causes
the clock monitor to time out and reset the MCU.
Freescale Semiconductor, Inc.
For More Information On This Product,
1. LOAD PC WITH RESET VECTOR
2. SERVICE INTERRUPT:
a. SAVE CPU REGISTERS ON STACK
b. SET I BIT IN CCR
c. LOAD PC WITH INTERRUPT VECTOR
TURN OFF INTERNAL OSCILLATOR
RESUME COP WATCHDOG COUNT
TURN ON INTERNAL OSCILLATOR
TURN ON INTERNAL CLOCK
NO
SUSPEND COP COUNTER
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Figure 6-2. Programmable COP Watchdog
CLEAR I BIT IN CCR
STABILIZATION
INTERRUPT?
EXTERNAL
EXTERNAL
in Stop Mode (PCOPE = 1) Flowchart
Low-Power Modes
OR
RESET?
END OF
DELAY?
STOP
NO
NO
YES
YES
YES
1. LOAD PC WITH RESET VECTOR
2. SERVICE INTERRUPT:
a. SAVE CPU REGISTERS ON STACK
b. SET I BIT IN CCR
c. LOAD PC WITH INTERRUPT VECTOR
TURN ON INTERNAL OSCILLATOR
CLEAR PCOPE BIT IN COPCR
TURN ON INTERNAL CLOCK
CLEAR COP COUNTER
STABILIZATION
MC68HC705C8A — Rev. 3
END OF
DELAY?
OR
NO
YES