MC9S12E256VPVE           Description

 The MC9S12E256 is a 112 amp 80-pin low-cost general-purpose MCU composed of standard on-chip peripherals. Includes a 16-bit central processing unit (HCS12 CPU), 256K-byte Flash EEPROM, 16K-byte RAM, three asynchronous serial communication interface modules (SCI), a serial peripheral interface (SPI), an inter-integrated circuit bus (IIC), three 4-channel 16-bit timer modules (TIM), a 6-channel 15-bit pulse modulator (PMF) with fault protection, a 6-channel 8-bit pulse width modulator (PWM), A 16-channel 10-bit analog-to-digital converter (ADC) and two 1-channel 8-bit digital-to-analog converters (DAC). MC9S12E256 always has a complete 16-bit data path. By using the PLL circuit, the power consumption and performance can be adjusted to meet the operational requirements. In addition to the Ithumb O ports available on each module, 16 dedicated I / O port bits are provided with a wake-up function in stop or wait mode. In addition, the on-chip bandgap voltage regulator (VREG) generates an internal digital power supply voltage of 2.5V (VDD) over an external power supply range of 2.97V to 5.5V.

 MC9S12E256VPVE                    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

— Module Mapping Control (MMC)

— Interrupt control (INT)

— Background Debug Module (BDM)

— Debugger (DBG12) including breakpoints and change-of-flow trace buffer

— Multiplexed External Bus Interface (MEBI)

? Wake-Up interrupt inputs

— Up to 16 port bits available for wake up interrupt function with digital filtering

? Memory

— 256K Byte Flash EEPROM

— 16K Byte RAM

? Two 1-channel Digital-to-Analog Converters (DAC)

— 8-bit resolution

? Analog-to-Digital Converter (ADC)

— 16-channel module with 10-bit resolution

— External conversion trigger capability

? Three 4-channel Timers (TIM)

— Programmable input capture or output compare channels

— Simple PWM mode

— Counter modulo reset

— External event counting

— Gated time accumulation

? 6 PWM channels (PWM)

— 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

? 6-channel Pulse width Modulator with Fault protection (PMF)

— Three independent 15-bit counters with synchronous mode

— Complementary channel operation

— Edge and center aligned PWM signals

— Programmable dead time insertion

— Integral reload rates from 1 to 16

— Four fault protection shut down input pins

— Three current sense input pins

? Serial interfaces

— Three asynchronous serial communication interfaces (SCI)

— Synchronous serial peripheral interface (SPI)

— Inter-IC Bus (IIC)

MC9S12E256VPVE            Applications

User modes

? Normal modes

— Normal Single-Chip Mode

— Normal Expanded Wide Mode

— Normal Expanded Narrow Mode

— Emulation Expanded Wide Mode

— Emulation Expanded Narrow Mode

? Special Operating Modes

— Special Single-Chip Mode with active Background Debug Mode

— Special Test Mode (Freescale use only)

— Special Peripheral Mode (Freescale use only)

? Low power modes

— Stop Mode

— Pseudo Stop Mode

— Wait Mode