MCF51EM: MCF51EM256 32-bit MCU for Smart Meter Applications
MCF51EM256 is NXP®.s smart-meter-on-a-chip 32-bit ColdFire® V1 core microcontroller (MCU) with embedded LCD controller, 16-bit analog-to-digital converter (ADC), and metrology-specific peripherals optimized for smart meter applications. MCF51EM256 comes with a full suite of hardware and software tools that make development quick and easy.
ColdFire® MCF51EM Microcontroller Block Diagram
特性
- 32-bit V1 ColdFire® CPU offering 47 MIPS at 50 MHz 3.3-volt single supply
- Up to 256 KB flash (dual bank)
- Up to 16 KB SRAM
- Low-power operation mode
- 4 x 16-bit segmentation and reassembly (SAR) ADC
- 288 segment LCD driver
- Up to 50 general purpose input/output (GPIO)
- Integrated real-time clock (RTC)
- Automatic meter reading (AMR) serial peripheral interface (SPI)
- Background debug mode (BDM) for in-circuit debugging
- The MCF51EM256 is included in NXP®.s product longevity program, with assured supply for a minimum of 10 years after launch
Recommended Documentation (3)
| Name/Description | Type | Modified Date |
|---|---|---|
| MCF51EM Smart metering made easy with V1 ColdFire® ® MCU - Fact Sheet (REV 0) PDF (198.2 kB) MCF51EM256FS | Fact Sheets | 15 Oct 2009 |
| MCF51EM256 Series ColdFire® ® Integrated Microcontroller - Reference Manual (REV 8.1) PDF (4.3 MB) MCF51EM256RM | Reference Manuals | 21 May 2012 |
| MCF51EM256 Series ColdFire® Microcontroller - Data Sheet (REV 3) PDF (1.0 MB) MCF51EM256 | Data Sheets | 30 Aug 2010 |
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| MCF51EM256 Series ColdFire® Microcontroller - Data Sheet (REV 3) PDF (1.0 MB) MCF51EM256 | 30 Aug 2010 |
Errata (2)
| Name/Description | Modified Date |
|---|---|
| MSEF51EM256_1M00S - Mask Set Errata for Mask 1M00S (REV 1) PDF (179.1 kB) MSEF51EM256_1M00S | 27 May 2015 |
| MSEF51EM256_2M00S- Mask Set Errata for Mask 2M00S (REV 0) PDF (162.3 kB) MSEF51EM256_2M00S | 27 May 2015 |
Application Notes (11)
Reference Manuals (4)
| Name/Description | Modified Date |
|---|---|
| MCF51EM256 Series ColdFire® ® Integrated Microcontroller - Reference Manual (REV 8.1) PDF (4.3 MB) MCF51EM256RM | 21 May 2012 |
| MCF51EM256 Reference Manual Addendum (REV 1) PDF (37.6 kB) MCF51EM256RMAD | 18 Jan 2012 |
| DRM121, MQX-Enabled MCF51EM256 Single-Phase Electricity Meter - Reference Manual (REV 0) PDF (10.6 MB) DRM121 | 16 Jun 2011 |
| ColdFire® ® Family Programmer’s - Reference Manual (REV 3) PDF (1.7 MB) CFPRM | 08 Mar 2005 |
Users Guides (1)
| Name/Description | Modified Date |
|---|---|
| MCF51 Advanced Control Library User’s Reference Manual (REV 0) PDF (281.2 kB) MCF51_ACLIB | 14 Apr 2009 |
Fact Sheets (1)
| Name/Description | Modified Date |
|---|---|
| MCF51EM Smart metering made easy with V1 ColdFire® ® MCU - Fact Sheet (REV 0) PDF (198.2 kB) MCF51EM256FS | 15 Oct 2009 |
Supporting Information (1)
| Name/Description | Modified Date |
|---|---|
| MCF51EM256 anti-tamper features a leap towards robust smart metering solutions (REV 0) PDF (215.4 kB) BRMETERING__INT_ISSUE_4_09 | 01 Dec 2009 |
Programmers (Flash, etc.)
Ordering Information
| Product | Status | Status | Package Type and Termination Count | Qualification Tier | Budgetary Price excluding tax(US$) | Core: Performance in MIPS | Operating Frequency (Max) (MHz) | Bus Frequency (Max) (MHz) | Internal Flash (KB) | Internal RAM (KB) | Cache (KB) | External Memory Supported | USB features | Ethernet Type | Timer Features | External Bus Interface | GPIOs | External Interrupts | Additional Features | Debug & Trace | Supply Voltage (Min-Max) (V) | Ambient Operating Temperature (Min-Max) (°C) | Video/Display features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MCF51EM128CLL | Active | LQFP 100 | 10-YEARS APPLICATION LIFE | 10K @ US$3.75 | 47 | 50 | 25 | 128 | 8 | Pulse Accumulator, Output Compare, Input Capture | 47 | 16 | Analog Comparator, COP, Internal Clock Generator, KBI, Low Voltage Detect | 1.8 to 3.6 | -40 to 85 | LCD Controller | |||||||
| MCF51EM128CLK | Active | LQFP 80 | 10-YEARS APPLICATION LIFE | 10K @ US$3.50 | 47 | 50 | 25 | 128 | 8 | Pulse Accumulator, Output Compare, Input Capture | 40 | 16 | Analog Comparator, COP, Internal Clock Generator, KBI, Low Voltage Detect | 1.8 to 3.6 | -40 to 85 | LCD Controller | |||||||
| MCF51EM256CLK | Active | LQFP 80 | 10-YEARS APPLICATION LIFE | 10K @ US$3.85 | 47 | 50 | 25 | 256 | 16 | Pulse Accumulator, Output Compare, Input Capture | 40 | 16 | Analog Comparator, COP, Internal Clock Generator, KBI, Low Voltage Detect | 1.8 to 3.6 | -40 to 85 | LCD Controller | |||||||
| MCF51EM256CLL | Active | LQFP 100 | 10-YEARS APPLICATION LIFE | 10K @ US$4.10 | 47 | 50 | 25 | 256 | 16 | Pulse Accumulator, Output Compare, Input Capture | 47 | 16 | Analog Comparator, COP, Internal Clock Generator, KBI, Low Voltage Detect | 1.8 to 3.6 | -40 to 85 | LCD Controller | |||||||
| SCF51EM256J2CLK | No Longer Manufactured | 10-YEARS APPLICATION LIFE | 47 | 50 | 25 | 256 | 16 | Input Capture, Output Compare, Pulse Accumulator | 40 | 16 | Low Voltage Detect, KBI, Internal Clock Generator, COP, Analog Comparator | 1.8 to 3.6 | -40 to 85 | LCD Controller | |||||||||
| SCF51EM256J2CLL | No Longer Manufactured | 10-YEARS APPLICATION LIFE | 47 | 50 | 25 | 256 | 16 | Input Capture, Output Compare, Pulse Accumulator | 40 | 16 | Low Voltage Detect, KBI, Internal Clock Generator, COP, Analog Comparator | 1.8 to 3.6 | -40 to 85 | LCD Controller |
Package Information
| Package Description | Outline Version | Packing | Product Status | Part Number | Chemical Content | RoHS / Pb FreeChina RoHS Lookup | MSL | PPT (°C) |
|---|---|---|---|---|---|---|---|---|
| LQFP 80 14*14*1.4P0.65 | 98ASS23237W | MPQ - 450 BRICKPOQ - 450 BOX | Active | MCF51EM128CLK | MCF51EM128CLK.pdf |   | 3 | 260 |
| MPQ - 450 BRICKPOQ - 450 BOX | Active | MCF51EM256CLK | MCF51EM256CLK.pdf | | 3 | 260 | ||
| No Longer Manufactured | SCF51EM256J2CLK | SCF51EM256J2CLK.pdf | | 3 | 260 | |||
| LQFP 100 14*14*1.4P0.5 | 98ASS23308W | MPQ - 450 BRICKPOQ - 450 BOX | Active | MCF51EM128CLL | MCF51EM128CLL.pdf | | 3 | 260 |
| MPQ - 450 BRICKPOQ - 450 BOX | Active | MCF51EM256CLL | MCF51EM256CLL.pdf | | 3 | 260 | ||
| No Longer Manufactured | SCF51EM256J2CLL | SCF51EM256J2CLL.pdf | | 3 | 260 |
- MSEF51EM256_1M00S - Mask Set Errata for Mask 1M00S MCF51EM
- MSEF51EM256_2M00S- Mask Set Errata for Mask 2M00S MCF51EM
- FFT-Based Algorithm for Metering Applications - Application Note MCF51EM
- AN4752, FreeMASTER Serial Driver Usage - Application Note S08SV
- AN4753, Rational ClearCase Use in CodeWarrior® 10.3 - Application Note S08SV
- Display eGUI using TWR-LCD board MCF5445X
- AN3796, LCD Driver Specification - Application Notes MCF51EM
- AN4164, A Single-Phase Energy Meter with Capacitive Power Supply and Shunts - Application Notes MCF51EM
- Enabling the IRTC Module MCF51EM
- AN3949, ADC16 Calibration Procedure and Programmable Delay Block Synchronization For the MCF51EM256 - Application Notes MCF51MM
- AN3827, Differences Between Controller Continuum ADC Modules - Application Notes MCF51MM
- Using the MCF51EM Family for Infrared Communication MCF51EM
- MCF51EM256 Performance Assessment with Algorithms Used in Metering Applications MCF51EM
- MCF51EM256 Series ColdFire® ® Integrated Microcontroller - Reference Manual MCF51EM
- MCF51EM256 Reference Manual Addendum MCF51EM
- DRM121, MQX-Enabled MCF51EM256 Single-Phase Electricity Meter - Reference Manual MCF51EM
- ColdFire® ® Family Programmer’s - Reference Manual MCF5445X
- MCF51 Advanced Control Library User’s Reference Manual MCF51QE
- MCF51EM Smart metering made easy with V1 ColdFire® ® MCU - Fact Sheet MCF51EM
- MCF51EM256 anti-tamper features a leap towards robust smart metering solutions MCF51EM
- PROGCFV1 MCF51QE
- 98ASS23237W kea
- MCF51EM128CLK.pdf MCF51EM
- MCF51EM256CLK.pdf MCF51EM
- SCF51EM256J2CLK.pdf MCF51EM
- 98ASS23308W K51_72
- MCF51EM128CLL.pdf MCF51EM
- MCF51EM256CLL.pdf MCF51EM
- SCF51EM256J2CLL.pdf MCF51EM
