MC68HC705X32CFU Freescale Semiconductor, MC68HC705X32CFU Datasheet - Page 185

• 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

The MC68HC705X32 is a device similar to the MC68HC05X16, but with 32K bytes of EPROM
instead of 16K bytes of ROM. In addition, the bootstrap routines available in the MC68HC05X16
are replaced by bootstrap routines specific to the MC68HC705X32. The entire MC68HC05X16
data sheet applies to the MC68HC705X32, with the exceptions outlined in this appendix.
MC68HC05X16
Important note
The following applies to the D59J MC68HC705X32 mask set only.
On the D59J mask set, the oscillator divide ratio depends on the CANE pin:
On later mask set revisions, including G47V, DIV2 is forced in bootloader mode,
regardless of the CANE pin.
The following applies to the D40J and D59J MC68HC705X32 mask sets only:
– A mask option register (MOR) on the MC68HC705X32 allows
– The minimum external RESET input pulse width, t
– Maximum bus speed 2.2 MHz
Freescale Semiconductor, Inc.
the customer to select POR delay cycles and oscillator DIV
ratio. However, during reset, options of 4064 cycles POR and
DIV10 are forced, regardless of which options the customer has
selected. Therefore, a power-on reset delay of 40640 oscillator
cycles is forced.
CANE = 1
CANE = 0
(Table
For More Information On This Product,
B-10) is 1.5 t
Go to: www.freescale.com
MC68HC705X32
DIV10 forced in bootloader mode
DIV2 forced in bootloader mode
CYC
MC68HC705X32
B
RL
B-1
15