MC68HC705C8ACFB Freescale Semiconductor, MC68HC705C8ACFB Datasheet - Page 72

• Manufacturer Part Number: MC68HC705C8ACFB
• Description: IC MCU 8K 4MHZ OTP 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8ACFB

• 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-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

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
MOTOROLA