XC68HC705B32CB Freescale Semiconductor, XC68HC705B32CB Datasheet - Page 35

• Manufacturer Part Number: XC68HC705B32CB
• Description: IC MCU 2.1MHZ 32K OTP 56-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of XC68HC705B32CB

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 256 x 8
• Ram Size: 528 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 56-SDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MC68HC05B6
Rev. 4.1
NO
watchdog reset
Generate
interrupt?
external
IRQ
YES
NO
YES
MODES OF OPERATION AND PIN DESCRIPTIONS
(1) Fetch reset vector or
(2) Service interrupt:
Stop oscillator and all
Wait for time delay to
Watchdog active?
Turn on oscillator.
a. stack
b. set I-bit
c. vector to interrupt
Figure 2-3 STOP and WAIT flowcharts
Clear I bit.
routine
stabilise
Reset?
clocks.
STOP
YES
NO
A/D, EEPROM clocks active.
Oscillator active. Timer, SCI,
Processor clocks stopped
Restart processor clock
(1) Fetch reset vector or
(2) Service interrupt:
a. stack
b. set I-bit
c. vector to interrupt
YES
Clear I-bit
Reset?
routine
WAIT
YES
NO
interrupt?
external
IRQ
YES
YES
Timer interrupt?
SCI interrupt?
NO
NO
Freescale
NO
2-7
2