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S9S12HZ256J3MAL

HCS12 Microcontrollers

Freescale Semiconductor 

Chapter 1 MC9S12HZ256 Device Overview

• Memory

– 256K, 128K, 64K, 32K Flash EEPROM or ROM

– 2K, 1K byte EEPROM

– 12K, 6K, 4K, 2K byte RAM

• CRG (low current oscillator, PLL, reset, clocks, COP watchdog, real time interrupt, clock monitor)

• Analog-to-digital converter

– 16 channels, 10-bit resolution

– External conversion trigger capability

• Two 1-Mbps, CAN 2.0 A, B software compatible modules

– 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

– 16-bit main counter with 7-bit prescaler

– 8 programmable input capture or output compare channels

– Two 8-bit or one 16-bit pulse accumulators

• 6 PWM channels

– 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

– Two asynchronous serial communications interfaces (SCI)

– Synchronous serial peripheral interface (SPI)

– Inter-integrated circuit interface (IIC)

• Liquid crystal display (LCD) driver with variable input voltage

– Configurable for up to 32 frontplanes and 4 backplanes or general-purpose input or output

– 5 modes of operation allow for different display sizes to meet application requirements

– Unused frontplane and backplane pins can be used as general-purpose I/O

• PWM motor controller (MC) with 16 high current drivers

– Each PWM channel switchable between two drivers in an H-bridge configuration

– Left, right and center aligned outputs

– Support for sine and cosine drive

– Dithering

– Output slew rate control

MC9S12HZ256 Data Sheet, Rev. 2.04

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Freescale Semiconductor

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