MC68HC705C8AFNE Freescale Semiconductor, MC68HC705C8AFNE Datasheet - Page 59

• Manufacturer Part Number: MC68HC705C8AFNE
• Description: IC MCU 8BIT 44-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8AFNE

• 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: 44-PLCC
• Processor Series: HC705C
• Core: HC05
• Data Bus Width: 8 bit
• Data Ram Size: 304 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 2.1 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 1
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

MC68HC705C8A — Rev. 3
MOTOROLA
Figure 4-5. Reset and Interrupt Processing Flowchart
YES
CCR REGISTER
INSTRUCTION?
INSTRUCTION?
INSTRUCTION
Freescale Semiconductor, Inc.
FETCH NEXT
INTERRUPT?
INTERRUPT?
INTERRUPT?
INTERRUPT?
EXTERNAL
I BIT IN
RESET
TIMER
For More Information On This Product,
FROM
SET?
IRQ
SCI
SWI
SPI
RTI
NO
NO
NO
NO
NO
NO
NO
Go to: www.freescale.com
YES
YES
YES
YES
YES
YES
Interrupts
RESTORE REGISTERS FROM STACK:
CLEAR IRQ REQUEST LATCH
EXECUTE INSTRUCTION
1. STACK PC, X, A, CCR
2. SET I BIT
3. LOAD PC WITH VECTOR
TIMER:
CCR, A, X, PC
SWI:
IRQ:
SCI:
SPI:
$1FFC–$1FFD
$1FFA–$1FFB
$1FF8–$1FF9
$1FF6–$1FF7
$1FF4–$1FF5
Interrupt Processing
Technical Data
Interrupts