MC68HC705X32CFU Freescale Semiconductor, MC68HC705X32CFU Datasheet - Page 36

• 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
2.3.4
A pull-down device is activated on this pin each time the RESET pin is pulled low. Even after the
RESET pin is pulled high, the pull-down on the MDS pin will remain active until the pin is pulled
high. In single-chip mode MDS can be connected to VSS or left floating. When MDS is tied to V
at the end of reset, it is used to select any mode of operation other than single-chip mode. This
has the same effect as tying IRQ to 2V
Note:
2.3.5
The TCAP1 input controls the input capture 1 function of the on-chip programmable timer system.
2.3.6
The TCAP2 input controls the input capture 2 function of the on-chip programmable timer system.
2.3.7
The TCMP1 pin is the output of the output compare 1 function of the timer system.
2.3.8
The TCMP2 pin is the output of the output compare 2 function of the timer system.
2.3.9
The RDI pin is the input pin of the SCI receiver.
2.3.10
The TDO pin is the output pin of the SCI transmitter.
Although this pin can be left floating to select single-chip mode, it is advisable to
hard-connect it to VSS, especially in an electrically noisy environment.
MDS
TCAP1
TCAP2
TCMP1
TCMP2
RDI (Receive data in)
TDO (Transmit data out)
Freescale Semiconductor, Inc.
MODES OF OPERATION AND PIN DESCRIPTIONS
For More Information On This Product,
Go to: www.freescale.com
DD
. See
Section
2.1.
MC68HC05X16
Rev. 1
DD