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68HC11KW1:
Microcontroller
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The
MC68HC11KW1 8-bit microcontroller is a member of the M68HC11
family of HCMOS microcontrollers. It has 640 bytes of EEPROM
and 768 bytes of RAM. Making use of a 100-pin TQFP package,
a non-multiplexed expanded bus is a feature of this device.
The main timer system includes three input captures, four
output compares and a software selectable input capture
or output compare. There are two additional 16-bit timers,
each with three output compares and one software selectable
input capture or output compare. Other major features of
this device are: a 10-channel, 10-bit resolution A/D converter,
four PWM timer channels, an SPI (serial peripheral interface)
and an enhanced SCI (serial communications interface). In
common with other family members, the MC68HC11KW1 also includes
an 8-bit pulse accumulator circuit, a real time interrupt
facility, and a computer operating properly watchdog system.
This device is intended for use in expanded memory applications.
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68HC11KW1
Features
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- Low power, high performance M68HC11 CPU core with 4MHz
internal bus frequency
- 768 bytes of RAM
- 640 bytes of byte-erasable EEPROM, with on-chip charge
pump
- 448 bytes of boot ROM
- Up to 70 general purpose I/O lines, plus up to 10 input-only
lines
- Non-multiplexed address and data buses, permitting direct
access to the full 64K byte address map
- Memory expansion unit, with six address extension lines,
allowing up to (for example) sixteen 32K byte banks of
external memory to be addressed in either of two bank
windows
- Four external chip selects
- 16-bit timer with 3/4 input captures and 5/4 output
compares; pulse accumulator and COP watchdog timer
- Real-time interrupt circuit
- Two additional 16-bit timers, each with 3 output compares
and one input capture or output compare (may be externally
clocked, if required, for external event counter operation)
- SCI subsystem (NRZ type for compatibility with standard
RS232 systems) with parity and a modulus prescaler
- SPI subsystem, with software selectable MSB/LSB first
option and increased baud rate selection range
- 10-channel, 10-bit analog-to-digital converter
- Four 8-bit PWM timer channels
- Available in 100-pin TQFP package
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68HC11KW1
Parametrics
RAM
(Bytes)
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EEPROM
(Bytes)
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Timer
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I/O EXP
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Serial
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A/D
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PWM
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Operating Voltage
(V)
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Bus Frequency
(Max)
(MHz)
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768
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640
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16-Bit,
3/4IC, 4/5OC, RTI, pulse accumulator
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55
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SCI+
SPI
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10-CH
10-Bit
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4-CH
8-Bit or 2-CH 16-Bit
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5
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4
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68HC11KW1
Documentation
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68HC11KW1
Design Tools and Data
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68HC11KW1
Orderable Parts
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Orderable Part ID |
Package
Info |
Status |
Remarks |
| MC68HC11KW1CPU4 |
Thin
Quad Flat Pack (TQFP) |
|
-40
to +85 C |
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