Freescale Semiconductor

HCS12 HCS12 Microcontroller IC 16-Bit 25MHz 128KB (128K x 8) FLASH 80-QFP (14x14)

Overview 

Device Introduction

Freescale Semiconductor’s MC9S12A128 Flash microcontroller (MCU) is the next

generation of the highly successful 68HC12 architecture. Using Freescale’s

industry-leading 0.25 µs Flash, the A128 is part of a pin-compatible family that 

scales from 32 KB to 512 KB of Flash memory.

The MC9S12A128 provides an upward migration path from Freescale’s 68HC08,

68HC11 and 68HC12 architectures for applications that need larger memory,more 

peripherals and higher performance.

Device Features

High-Performance 16-bit HCS12 CPU Core

> 25 MHz bus operation at 5V for 40 ns minimum instruction cycle time

> Opcode compatible with the 68HC11 and 68HC12

> C-optimized architecture produces extremely compact code

On-Chip Debug Interface

> Dedicated serial debug interface

> On-chip breakpoints

> Real-time in-circuit emulation and debug without expensive and cumbersome

box emulators

> Read/write memory and registers while running at full speed

Integrated Third-Generation Flash Memory

> In-application reprogrammable

> Self-timed, fast programming

• Fast Flash page erase—20 ms (512 bytes)

• Can program 16 bits in 20 µs while in burst mode

> 5V Flash program/erase/read

> Flash granularity—512 byte Flash erase/2 byte Flash program

> Two independently programmable Flash arrays

> Flexible block protection and security

> Flexibility to change code in the field

> Efficient end-of-line programming

> Total program time for 128 KB code is less than five seconds

> Reduces production programming cost through ultra-fast programming

> No external high voltage or charge pump required

> Virtual EEPROM implementation, Flash array usable for EE extension

> Can erase one array while executing code from another

2 KB Integrated EEPROM

> Flexible protection scheme for protection against accidental program or erase

> EEPROM can be programmed in 46 µs

> Can erase 4 bytes at a time and program 2 bytes at a time for calibration, security,

personality and diagnostic information

10-bit Analog-to-Digital Converter (ADC)

> Two, 8-channel ADCs

> 7 µs, 10-bit single conversion time, scan mode available

> Fast, easy conversion from analog inputs like position sensors, analog meters and

photovoltaic cells to digital values for CPU processing

> Can effectively have 3.5 µs conversion time by sampling same signal with both ADCs

NXP Electronics components unboxing，humidity card changed color chip can used？

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HCS12 HCS12 Microcontroller IC 16-Bit 25MHz 32KB (32K x 8) FLASH 48-LQFP (7x7)

Introduction

The MC9S12C-Family / MC9S12GC-Family are 48/52/80 pin Flash-based MCU families, which deliver

the power and flexibility of the 16-bit core to a whole new range of cost and space sensitive, general

purpose industrial and automotive network applications. All MC9S12C-Family / MC9S12GC-Family

members feature standard on-chip peripherals including a 16-bit central processing unit (CPU12), up to

128K bytes of Flash EEPROM, up to 4K bytes of RAM, an asynchronous serial communications interface

(SCI), a serial peripheral interface (SPI), an 8-channel 16-bit timer module (TIM), a 6-channel 8-bit pulse

width modulator (PWM), an 8-channel, 10-bit analog-to-digital converter (ADC).

The MC9S12C128-Family members also feature a CAN 2.0 A, B software compatible module

(MSCAN12).

All MC9S12C-Family / MC9S12GC-Family devices feature full 16-bit data paths throughout. The

inclusion of a PLL circuit allows power consumption and performance to be adjusted to suit operational

requirements. In addition to the I/O ports available in each module, up to 10 dedicated I/O port bits are

available with wake-up capability from stop or wait mode. The devices are available in 48-, 52-, and 80-

pin QFP packages, with the 80-pin version pin compatible to the HCS12 A, B, and D Family derivatives.

Features

• 16-bit HCS12 core:

— HCS12 CPU

– Upward compatible with M68HC11 instruction set

– Interrupt stacking and programmer’s model identical to M68HC11

– Instruction queue

– Enhanced indexed addressing

— MMC (memory map and interface)

— INT (interrupt control)

— BDM (background debug mode)

— DBG12 (enhanced debug12 module, including breakpoints and change-of-flow trace buffer)

— MEBI (multiplexed expansion bus interface) available only in 80-pin package version

• Wake-up interrupt inputs:

— Up to 12 port bits available for wake up interrupt function with digital filtering

• Memory options:

— 16K or 32Kbyte Flash EEPROM (erasable in 512-byte sectors)

64K, 96K, or 128Kbyte Flash EEPROM (erasable in 1024-byte sectors)

— 1K, 2K or 4K Byte RAM

• Analog-to-digital converters:

— One 8-channel module with 10-bit resolution

— External conversion trigger capability

• Available on MC9S12C Family:

— One 1M bit per second, CAN 2.0 A, B software compatible module

— Five receive and three transmit buffers

— Flexible identifier filter programmable as 2 x 32 bit, 4 x 16 bit, or 8 x 8 bit

— Four separate interrupt channels for Rx, Tx, error, and wake-up

— Low-pass filter wake-up function

— Loop-back for self test operation

• Timer module (TIM):

— 8-channel timer

— Each channel configurable as either input capture or output compare

— Simple PWM mode

— Modulo reset of timer counter

— 16-bit pulse accumulator

— External event counting

— Gated time accumulation

• PWM module:

— Programmable period and duty cycle

— 8-bit 6-channel or 16-bit 3-channel

— Separate control for each pulse width and duty cycle

— Center-aligned or left-aligned outputs

— Programmable clock select logic with a wide range of frequencies

— Fast emergency shutdown input

• Serial interfaces:

— One asynchronous serial communications interface (SCI)

— One synchronous serial peripheral interface (SPI)

• CRG (clock reset generator module)

— Windowed COP watchdog

— Real time interrupt

— Clock monitor

— Pierce or low current Colpitts oscillator

— Phase-locked loop clock frequency multiplier

— Limp home mode in absence of external clock

— Low power 0.5MHz to 16MHz crystal oscillator reference clock

• Operating frequency:

— 32MHz equivalent to 16MHz bus speed for single chip

— 32MHz equivalent to 16MHz bus speed in expanded bus modes

— Option of 9S12C Family: 50MHz equivalent to 25MHz bus speed

— All 9S12GC Family members allow a 50MHz operating frequency.

• Internal 2.5V regulator:

— Supports an input voltage range from 2.97V to 5.5V

— Low power mode capability

— Includes low voltage reset (LVR) circuitry

— Includes low voltage interrupt (LVI) circuitry

• 48-pin LQFP, 52-pin LQFP, or 80-pin QFP package:

— Up to 58 I/O lines with 5V input and drive capability (80-pin package)

— Up to 2 dedicated 5V input only lines (IRQ, XIRQ)

— 5V 8 A/D converter inputs and 5V I/O

• Development support:

— Single-wire background debug™ mode (BDM)

— On-chip hardware breakpoints

— Enhanced DBG12 debug features