ST72254G2：8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY,ADC, 16-BIT TIMERS, SPI, I2C INTERFACES

The ST72104G, ST72215G, ST72216G and ST72254G devices are members of the ST7 microcontroller family. They can be grouped as follows:ST72254G devices are designed for mid-range applications with ADC and I²C interface capabilities.ST72215/6G devices target the same range of applications but without I²C interface.ST72104G devices are for applications that do not need ADC and I²C peripherals.

All devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set.

The ST72C104G, ST72C215G, ST72C216G and ST72C254G versions feature single-voltage FLASH memory with byte-by-byte In-Situ Programming (ISP) capability.

Under software control, all devices can be placed in WAIT, SLOW, or HALT mode, reducing power consumption when the application is in idle or stand-by state.

The enhanced instruction set and addressing modes of the ST7 offer both power and flexibility to software developers, enabling the design of highly efficient and compact application code. In addition to standard 8-bit data management, all ST7 microcontrollers feature true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes.

For easy reference, all parametric data are located in Section 13 on page 96.

Key Features

1 Analog peripheral8-bit ADC with 6 input channels(except on ST72104Gx)
2 Communications InterfacesSPI synchronous serial interfaceI2C multimaster interface(only on ST72254Gx)
Development ToolsFull hardware/software development package
Memories4K or 8K bytes Program memory (ROM and single voltage FLASH) with read-out protection and in-situ programming (remote ISP)256 bytes RAM
Interrupt Management7 interrupt vectors plus TRAP and RESET22 external interrupt lines (on 2 vectors)
Clock, Reset and Supply ManagementEnhanced reset systemEnhanced low voltage supply supervisor with3 programmable levelsClock sources: crystal/ceramic resonator oscillators or RC oscillators, external clock, backup Clock Security SystemClock-out capability3 Power Saving Modes: Halt, Wait and Slow
3 TimersConfigurable watchdog timerTwo 16-bit timers with: 2 input captures, 2 output compares, external clock input on one timer, PWM and Pulse generator modes(one only on ST72104Gx and ST72216G1)
Instruction Set8-bit data manipulation63 basic instructions17 main addressing modes8 x 8 unsigned multiply instructionTrue bit manipulation
22 I/O Ports22 multifunctional bidirectional I/O lines14 alternate function lines8 high sink outputs

Product Specifications

Description	Version	Size
DS3834: 8-bit MCU with single voltage Flash memory, ADC, 16-bit timers, SPI, I2C interfaces	3.2	2 MB

Application Notes

Description	Version	Size
AN1812: A High Precision, Low Cost, Single Supply ADC for Positive and Negative Input Voltages	1.3	320 KB
AN1755: A High Resolution/Precision thermometer using ST7 and NE555	1.3	77 KB
AN2390: A flexible universal battery charger	1.2	572 KB
AN1530: Accurate timebase for low-cost ST7 applications with internal RC oscillator	1.4	69 KB
AN2389: An MCU-based low cost non-inverting buck-boost converter for battery chargers	1.4	127 KB
AN1150: Benchmark ST72 vs. PIC16	1.4	228 KB
AN2017: DIFFERENT WAYS TO RESET ST7 MICROCONTROLLER	1.3	108 KB
AN1754: Data logging program for testing ST7 applications via ICC	1.4	129 KB
AN1577: Device firmware upgrade (DFU) implementation in ST7 USB devices	1.4	143 KB
AN1633: Device firmware upgrade (DFU) implementation in non-USB applications	1.4	62 KB
AN976: Driving a buzzer through ST7 timer PWM function	1.4	68 KB
AN979: Driving an analog keyboard with the ST7 ADC	1.6	139 KB
AN1709: EMC design guide for ST microcontrollers	2.0	843 KB
AN2271: Ekey-Udisk solution	1.3	59 KB
AN1181: Electrostatic discharge sensitivity measurement	1.6	49 KB
AN1502: Emulated data EEPROM with ST7 HDFlash memory	1.5	42 KB
AN1477: Emulated data EEPROM with XFlash memory	1.4	27 KB
AN985: Executing code in ST7 RAM	1.4	52 KB
AN1796: Field updates for Flash based ST7 applications using a PC COMM port	1.4	141 KB
AN1712: GENERATING A HIGH RESOLUTION SINEWAVE USING ST7 PWMART	1.5	105 KB
AN1365: Guidelines for migrating ST72C254 applications to ST72F264	2.3	130 KB
AN2197: Guidelines for migrating ST72F324 & ST72F321 applications to ST72F324B, ST72F321B or ST72F325	1.4	86 KB
AN2200: Guidelines for migrating ST7LITE1x applications to ST7FLITE1xB	1.6	104 KB
AN1149: Handling suspend mode on a USB mouse	1.4	101 KB
AN1014: How to minimize the ST7 power consumption	1.4	252 KB
AN971: I2C communication between ST7 and M24CXX EEPROM	1.6	68 KB
AN1576: In-Application Programming (IAP) drivers for ST7 HDFlash or XFlash MCUs	1.4	69 KB
AN1278: LIN (Local Interconnect Network) solutions	1.5	297 KB
AN1047: Managing reception errors with the ST7 SCI peripheral	1.4	20 KB
AN1040: Monitoring the VBUS signal for USB self-powered devices	1.4	28 KB
AN1044: Multiple interrupt sources management for ST7 MCUs	1.4	100 KB
AN1575: On-board programming methods for XFlash and HDFlash ST7 MCUs	1.4	67 KB
AN1077: Overview of enhanced CAN controllers for ST7 and ST9 MCUs	1.5	80 KB
AN2511: PMBus™ interface using ST7 I²C	3.2	645 KB
AN1179: Programming ST7 Flash microcontrollers in remote ISP mode (In-Situ Programming)	1.4	165 KB
AN974: Real time clock with ST7 Timer Output Compare	1.4	66 KB
AN969: SCI communication between ST7 and PC	1.4	58 KB
AN1713: SMBus slave driver for ST7 I2C peripheral	1.4	42 KB
AN1711: SOFTWARE TECHNIQUES FOR COMPENSATING ST7 ADC ERRORS	1.3	638 KB
AN970: SPI communication between ST7 and EEPROM	1.5	63 KB
AN3084: ST7 10-bit A/D converter non-linearity at center of range	1.3	52 KB
AN990: ST7 Benefits versus Industry Standard	1.4	55 KB
AN1070: ST7 Checksum self-checking capability	1.4	52 KB
AN1045: ST7 S/W implementation of I2C bus master	1.4	150 KB
AN972: ST7 Software SPI master communication	1.4	37 KB
AN1046: ST7 UART emulation software	1.4	171 KB
AN910: ST7 and ST9 performance benchmarking	2.5	711 KB
AN1635: ST7 customer ROM code release information	1.4	43 KB
AN980: ST7 keypad decoding techniques, implementing wake-up on keystroke	1.5	45 KB
AN1039: ST7 math utility routines	1.4	171 KB
AN1105: ST7 pCAN peripheral driver	1.7	581 KB
AN1042: ST7 routine for I2C slave mode management	1.4	89 KB
AN987: ST7 serial test controller programming	1.5	76 KB
AN1048: ST7 software LCD driver	5.3	226 KB
AN1078: ST7 timer PWM duty cycle switch for true 0% or 100% duty cycle	1.4	59 KB
AN1086: ST7/ST10/U435 CAN-do solutions for car multiplexing	1.5	146 KB
AN1068: Selecting between ROM, FASTROM and Flash for a microcontroller	1.4	89 KB
AN886: Selecting between ROM, FASTROM and OTP for a microcontroller	1.3	124 KB
AN1504: Starting a PWM signal directly at high level using the ST7 16-bit timer	1.4	170 KB
AN2278: Temperature sensor application using ST LM135	3.2	91 KB
AN1106: Translating assembly code from HC05 to ST7	1.6	77 KB
AN1636: Understanding and minimising ADC conversion errors	1.4	406 KB
AN1041: Using ST7 PWM signal to generate analog output (sinusoïd)	1.6	123 KB
AN982: Using ceramic resonators with the ST7	1.5	65 KB
AN1445: Using the ST7 SPI to emulate a 16-bit slave	1.5	61 KB
AN1603: Using the ST7 USB device firmware upgrade development kit (DFU-DK)	1.4	94 KB
AN1325: Using the ST7 USB low-speed library V4.2x	1.4	227 KB
AN1017: Using the ST7 Universal Serial Bus microncontroller	1.6	261 KB
AN986: Using the indirect addressing mode with ST7	1.4	37 KB

Technical Notes & Articles

Description	Version	Size
TN1163: Description of WLCSP for microcontrollers and recommendations for its use	4.0	1 MB

User Manuals

Description	Version	Size
UM0015: ST7 8-bit MCU family user guide	1.4	2 MB
UM0402: Single-phase multi tariff energy meter	1.3	587 KB

Programming Manuals

Description	Version	Size
PM0018: ST7 Flash programming quick reference guide	6.4	152 KB
PM0011: ST7 family Flash programming reference manual	2.4	747 KB
PM0012: ST7 family ICC protocol reference manual	3.3	892 KB
PM0002: ST7 family programming manual	2.4	1 MB

Training Material

Description	Version	Size
ST7 Training Part 1 : Introduction	1.0	4 MB
ST7 Training Part 2 : Core	1.0	1 MB
ST7 Training Part 3 : Addressing Modes	1.0	524 KB
ST7 Training Part 4 : Assembly Toolchain	1.0	273 KB
ST7 Training Part 5 : Debugger	1.0	571 KB
ST7 Training Part 6 : Hardware Tools	1.0	6 MB
ST7 Training Part 7 : Peripherals	1.0	1 MB
ST7 Training Part 8 : Realizer	1.0	212 KB
ST7 Training Part 9 : Cosmic Compiler	1.0	1 MB

Board Manufacturing Specifications

Description	Version	Size
Gerber files for PIR PCB (AN1828)	1.0	29 KB

Product Certifications

Description	Version	Size
ST72F324B Qualification Certificate	1.0	25 KB

Hardware Development Tools

Part Number	Manufacturer	Description
STX-RLINK	Raisonance	In-circuit debugger/programmer for STM8, ST7, STM32, STR7 and STR9 microcontrollers

Software Development Tools

Part Number	Manufacturer	Description
RIDE-STR	Raisonance	Raisonance branded integrated development environment for ST7, STR7 and STR9 MCUs
STSW-ST7009	ST	DFU Development Kit package (Device Firmware Upgrade).Contains all sources for the GUI and the DFU protocol layer.
STVD-ST7	ST	ST Visual IDE for developing ST7 applications
STVP-LIB-ST7	ST	STVP programming toolkit: C++ source files for creating PC programming interface
STVP-ST7	ST	ST Visual Programmer ST7

MCUs Embedded Software

Part Number	Manufacturer	Description
STSW-ST7020	ST	HDFlash IAP C-Driver Compatible with Metrowerks and Cosmic compilers.
STSW-ST7025	ST	ST7 USB Low Speed EvalKit Firmware
STSW-ST7029	ST	ST7 XFLASH IAP example with the ST7FOPTIONS-EVAL board
STSW-ST7030	ST	XFlash IAP C-Driver Compatible with Metrowerks and Cosmic compilers.
STSW-ST7031	ST	S/W Implementation of I2C Bus master
STSW-ST7032	ST	Checksum self checking capability
STSW-ST7033	ST	ST72141 BLDC motor control software and flowchart example
STSW-ST7034	ST	Translating assembly code from HC05 to ST7
STSW-ST7035	ST	Handling suspend mode on a USB mouse
STSW-ST7036	ST	Performance comparison between ST72254 and PIC16F876
STSW-ST7038	ST	Workaround to ISP mode limitation on the ST7MDT1-DVP2 and ST7MDT2-DVP2
STSW-ST7041	ST	ST7MC Three-Phase AC Induction Motor Ccontrol Software Library
STSW-ST7046	ST	Ekey-Udisk solution
STSW-ST7058	ST	ST Visual Develop (STVD 3.3.2), core debugger source files
STSW-ST7060	ST	Half Duplex USB-to-Serial bridge using the ST72611 USB microcontroller
STSW-ST7061	ST	LIN (Local Interconnect Network) Solutions
STSW-ST7062	ST	Emulated data EEPROM with ST7 HDFlash memory
STSW-ST7065	ST	ST7 Software Examples
STSW-ST7066	ST	ST7 Software Library
STSW-ST7071	ST	ST7MDT1 Training Exercises
STSW-ST7079	ST	ST7 HDFLASH IAP example with the ST7MDT2-TRAIN board
STSW-ST7085	ST	ST7 math utility routines
STSW-ST7086	ST	ST7 routine for I2C slave mode management
STSW-ST7087	ST	ST7 UART emulation software
STSW-ST7088	ST	ST7 Software LCD driver
STSW-ST7089	ST	ST7 timer PWM duty cycle switch for true 0% or 100% duty cycle
STSW-ST7090	ST	ST7 pCAN Peripheral Driver
STSW-ST7091	ST	Software Techniques for compensating ST7 ADC Errors
STSW-ST7092	ST	Generating a high resolution sinewave using ST7 PWMART
STSW-ST7093	ST	SMBus Slave Driver for ST7 I2C Peripherals
STSW-ST7094	ST	Software UART using ST7 12-Bit Autoreload Timer
STSW-ST7096	ST	SCI communication between ST7 and PC
STSW-ST7097	ST	SPI Communication between ST7 and EEPROM
STSW-ST7098	ST	I2C Communication between ST7 and M24Cxx EEPROM
STSW-ST7099	ST	ST7 software SPI master communication
STSW-ST7100	ST	Real time clock with ST7 timer output compare
STSW-ST7101	ST	ST7 - Driving an analog keyboard with the ST7 ADC

Sample & Buy

Part Number	Quantity	Unit Price (US$) *	Package	Packing Type	Operating Temperature (°C) (min)	Operating Temperature (°C) (max)	ECCN (EU)	ECCN (US)	Country of Origin
ST72C254G2M6	-	-	SO-28	Tube	-40	85	NEC	EAR99	-

Quality & Reliability

Part Number	Package	Grade	RoHS Compliance Grade	Material Declaration**
ST72C254G2M6	SO-28	Industrial	Ecopack1