MC68HC705C8AB Freescale Semiconductor, MC68HC705C8AB Datasheet - Page 32
MC68HC705C8AB
Manufacturer Part Number
MC68HC705C8AB
Description
IC MCU 8K OTP 2.1MHZ 42-SDIP
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet
1.MC68HC705C8AB.pdf
(222 pages)
Specifications of MC68HC705C8AB
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
42-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
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General Description
1.7.3.3 External Clock Signal
1.7.4 External Reset Pin (RESET)
1.7.5 External Interrupt Request Pin (IRQ)
1.7.6 Input Capture Pin (TCAP)
Technical Data
32
NOTE:
An external clock from another
CMOS-compatible device can drive the
OSC1 input, with the OSC2 pin
unconnected, as
The bus frequency (f
the processor clock cycle is two times the f
A logic 0 on the bidirectional RESET pin forces the MCU to a known
startup state. The RESET pin contains an internal Schmitt trigger as part
of its input to improve noise immunity. See
The IRQ pin is an asynchronous external interrupt pin. The IRQ pin
contains an internal Schmitt trigger as part of its input to improve noise
immunity. See
The TCAP pin is the input capture pin for the on-chip capture/compare
timer. The TCAP pin contains an internal Schmitt trigger as part of its
input to improve noise immunity. See
Timer.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
4.3.2 External Interrupt
General Description
Figure 1-11
OP
) is one-half the external frequency (f
shows.
Section 8. Capture/Compare
(IRQ).
OSC
Section 5.
Figure 1-11. External
CMOS CLOCK
EXTERNAL
period.
MC68HC705C8A — Rev. 3
Clock
Resets.
MCU
OSC
) while
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