mc9s12a64 Freescale Semiconductor, Inc, mc9s12a64 Datasheet
mc9s12a64
Manufacturer Part Number
mc9s12a64
Description
16-bit Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12A64.pdf
(2 pages)
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MC9S12A64
Target Applications
> Instrumentation
> Energy management
> Industrial control
> Robotics
> Safety equipment
> Security
Overview
The MC9S12A64 Flash microcontroller (MCU)
is the next generation of the highly successful
68HC12 architecture. Utilizing Freescale’s
industry-leading 0.25µ Flash, the A64 is part of
a pin-compatible family that is planned to scale
from 32 KB to 512 KB of Flash memory. The
MC9S12A64 provides an upward migration
path from Freescale’s 68HC08, 68HC11 and
68HC12 architectures for applications that
need larger memory, more peripherals and
higher performance.
16-bit Microcontrollers
Vreg 5V to 2.5V
16-Keyboard
IRQ Ports
Wake-Up
2 x SCI
SPI
I
2
C
HCS12 CPU
64 KB Flash
8-ch., 10-bit
4 KB RAM
ADC0
Enhanced Capture Timer
8-ch., 8-bit/4-ch., 16-bit
8-ch., 16-bit
PWM
1 KB EEPROM
8-ch., 10-bit
ADC1
Features
High-Performance 16-bit HCS12 CPU Core
> 25 MHz bus operation at 5V for 40 ns
On-Chip Debug Interface
> Dedicated serial debug interface
> On-chip breakpoints
Integrated Third-Generation Flash Memory
> In-application reprogrammable
> Self-timed, fast programming
> 5V Flash program/erase/read
> Flash granularity—512 byte Flash erase/2 byte
> Flexible block protection and security
> Flexibility to change code in the field
1 KB Integrated EEPROM
> Flexible protection scheme for protection
> EEPROM can be programmed in 46 µs
10-bit Analog-to-Digital Converter (ADC)
> Two eight-channel ADCs
> 7 µs, 10-bit single conversion time, scan
Clock Generation Module with Phase-Lock Loop (PLL)
> Clock monitor with limp home mode in case of
> Programmable clock frequency with 1,024
> Real-time interrupt
> Watchdog
minimum instruction cycle time
Flash program
against accidental program or erase
mode available
no external clock
options ranging from divide by 16 to multiply
by 64 form base oscillator
• Fast Flash page erase—20 ms (512 bytes)
• Can program 16 bits in 20 µs while in
burst mode
> Opcode compatible with the 68HC11
> C-optimized architecture produces extremely
> Real-time in-circuit emulation and debug
> Read/write memory and registers while running
> Efficient end-of-line programming
> Total program time for 164 KB code is less
> Reduces production programming cost
> No external high voltage or charge
> Virtual EEPROM implementation, Flash array
> Can erase 4 bytes at a time and program
> Fast, easy conversion from analog inputs,
> Can effectively have 3.5 µs conversion
> Reliable, robust operation
> Provides high performance using low-cost
> Reduces generated noise
> Reduces power consumption
> Easily able to implement
Benefits
and 68HC12
compact code
without expensive and cumbersome
box emulators
at full speed
than 5s
through ultra-fast programming
pump required
usable for EE extension
2 bytes at a time for calibration, security,
personality and diagnostic information
such as position sensors, analog meters
and photovoltaic cells, to digital values for
CPU processing
time by sampling same signal with
both ADCs
reference crystals
real-time clock
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mc9s12a64 Summary of contents
Page 1
... Flash, the A64 is part of a pin-compatible family that is planned to scale from 512 KB of Flash memory. The MC9S12A64 provides an upward migration path from Freescale’s 68HC08, 68HC11 and 68HC12 architectures for applications that need larger memory, more peripherals and higher performance ...
Page 2
... Learn More: For more information about Freescale products, please visit www.freescale.com. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. This product incorporates SuperFlash © Freescale Semiconductor, Inc. 2005 Document Number: MC9S12A64FS REV 0 Benefits > Flexible, programmable timer system > ...