MC68HC705C8AB Freescale Semiconductor, MC68HC705C8AB Datasheet - Page 74

• Manufacturer Part Number: MC68HC705C8AB
• Description: IC MCU 8K OTP 2.1MHZ 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8AB

• 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: 0°C ~ 70°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Low-Power Modes
Technical Data
74
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
TURN ON INTERNAL OSCILLATOR
TURN ON INTERNAL CLOCK
NO
TURN OFF COP COUNTER
TURN ON COP WATCHDOG
Figure 6-3. Non-Programmable COP Watchdog
CLEAR COP COUNTER
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CLEAR I BIT IN CCR
STABILIZATION
INTERRUPT?
EXTERNAL
EXTERNAL
in Stop Mode (NCOPE = 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
TURN ON INTERNAL CLOCK
TURN ON COP WATCHDOG
CLEAR COP COUNTER
STABILIZATION
MC68HC705C8A — Rev. 3
END OF
DELAY?
OR
NO
YES