MC68HC705X32CFU Freescale Semiconductor, MC68HC705X32CFU Datasheet - Page 32

• Manufacturer Part Number: MC68HC705X32CFU
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC705X32CFU

• Cpu Family: HC05
• Device Core Size: 8b
• Frequency (max): 4MHz
• Interface Type: SCI
• Program Memory Type: EPROM
• Program Memory Size: 32KB
• Total Internal Ram Size: 528Byte
• # I/os (max): 32
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 8-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: PQFP
• Lead Free Status / Rohs Status: Supplier Unconfirmed

2
The following list summarizes the effect of WAIT mode on the modules of the MC68HC05X16.
2.2.2.1
Power consumption during WAIT mode depends on how many systems are active. The power
consumption will be highest when all the systems (A/D, timer, EEPROM, SCI and MCAN) are
active, and lowest when the EEPROM erase and programming mechanism, SCI and A/D are
disabled and the MCAN is in SLEEP mode. The timer cannot be disabled in WAIT mode. It is
important that before entering WAIT mode, the programmer sets the relevant control bits for the
individual modules to reflect the desired functionality during WAIT mode.
Power consumption may be further reduced by the use of SLOW mode. (See
2.2.3
The SLOW mode function is controlled by the SM bit in the miscellaneous register at location
$000C. It allows the user to insert, under software control, an extra divide-by-16 between the
oscillator and the internal clock driver (see
operations to slow down and thus reduces power consumption.
Warning: The SLOW mode function should not be enabled while using the A/D converter or while
– The watchdog timer functions according to the mask option selected; see
– The EEPROM is not affected; see
– The SCI is not affected; see
– The timer is not affected; see
– The PLM is not affected; see
– The A/D converter is not affected; see
– The I-bit in the CCR is cleared
– The MCAN module is unaffected
Section 10.1.4.2
erasing/programming the EEPROM unless the internal A/D RC oscillator is turned on.
Power consumption during WAIT mode
SLOW mode
Freescale Semiconductor, Inc.
MODES OF OPERATION AND PIN DESCRIPTIONS
For More Information On This Product,
Go to: www.freescale.com
Section 7.14
Section 8.4
Section 6.7
Section 3.7
Figure
Section 9.4
2-5). This feature allows all the internal
Section
MC68HC05X16
2.2.3).
Rev. 1