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TM52FN8278

Data Sheet
DS-TM52FN8273_76_74_78_EV091.pdf

8/9/2022
User manual

Development Tools
T-Link-EV Board
TWR98/TWR99/TWR100/TWR100A

BLOCK DIAGRAM


FEATURES
1.	Standard 8051 Instruction set, fast machine cycle
	Executes instructions six times faster than the standard 8051.
2.	Flash Program Memory
	8K Bytes (TM52FN8274/78)
	16K Bytes (TM52FN8273/76)
	Support “In Circuit Programming” (ICP) or “In System Programming” (ISP) for the Flash code
	Byte Write “In Application Programming” (IAP) mode is convenient as Data EEPROM access
	Code Protection Capability
	Built-in Watchdog Timer for escape the write fail state
	10K erase times at least
	10 years data retention at least
3.	128 Bytes EEPROM Memory
	50K erase times at least
	10 years data retention at least
4.	Total 1024 Bytes SRAM (IRAM + XRAM) 
	256 Bytes IRAM in the 8051 internal data memory area
	768 Bytes XRAM in the 8051 external data memory area (accessed by MOVX Instruction)
5.	Four System Clock type selections
	Fast clock from 1~16MHz Crystal (FXT)
	Fast clock from Internal RC (FRC, 14.7456 MHz)
	Slow clock from 32768Hz Crystal (SXT)
	Slow clock from Internal RC (SRC, 80 KHz)
	System Clock can be divided by 1/2/4/16 option
6.	8051 Standard Timer – Timer0/1/2
	16-bit Timer0, also supports T0O clock output for Buzzer application
	16-bit Timer1
	16-bit Timer2, also supports T2O clock output for Buzzer application
7.	15-bit Timer3
	Clock source is Slow clock
	Interrupt period can be clock divided by 32768/16384/8192/4096/2048/1024/512/256 option
8.	UARTs
	UART1, 8051 standard UART, One Wire UART option can be used for ISP or other application
	UART2, the second UART, supports only mode1 and mode3
 
9.	Three independent "8+2" bits PWMs with prescaler/ period-adjustment
10.	SPI Interface
	Master or Slave mode selectable
	Programmable transmit bit rate
	Serial clock phase and polarity options
	MSB-first or LSB-first selectable
11.	19-Channel Touch Key (FN8276/78 only)
	Internal reference key
	Touch Key clock Auto-change
12.	12-bit ADC with 14 channels External Pin Input and 2 channels Internal Reference Voltage 
	Internal Reference Voltage (VBG): 1.20V±1%@VCC=5V~3V, 25℃
	Internal Reference Voltage: Vcc/4
	ADC reference voltage = 2.5V / VCC
13.	LCD Driver
	Software controlled COM00~07, COM10~17, COM20~21, COM30~37 (Max. 26 pins)
	1/2 LCD Bias
14.	LED Controller/Driver
	New Matrix mode function
	Max. 10 pins (4 COM x 4 SEG ~ 4 COM x 6 SEG)
	COM with Dead Time
	3groups, 8-level Brightness with smooth option
	LED hold function
15.	12 Sources, 4-level priority Interrupt
	Timer0/Timer1/Timer2/Timer3 Interrupt
	INT0/INT1 pin Falling-Edge/Low-Level Interrupt
	P1.0~P1.3 Pin Change Interrupt
	UART1/UART2 TX/RX Interrupt
	P3.7 (INT2) pin Interrupt
	ADC/Touch Key Interrupt
	SPI Interrupt
16.	Pin Interrupt can Wake up CPU from Power-Down (Stop) mode
	P3.2/P3.3 (INT0/INT1) Interrupt & Wake-up
	P3.7 (INT2) Interrupt & Wake-up
	P1.0~P1.3 pin can be defined as Interrupt & Wake-up pin (by pin change)
 
17.	Max. 26 Programmable I/O pins
	CMOS Output
	Pseudo-Open-Drain, or Open-Drain Output
	Schmitt Trigger Input
	Pin Pull-up can be Enabled or Disabled
	All pin with High sink (80mA@VCC=5V,VOL=0.1VCC)
18.	Independent RC Oscillating Watch Dog Timer
	400ms/200ms/100ms/50ms selectable WDT timeout options
19.	Five types Reset
	Power on Reset
	Selectable External Pin Reset
	Selectable Watch Dog Reset
	Software Command Reset
	Selectable Low Voltage Reset
20.	8-level Low Voltage Reset
	2.2V/2.5V/2.8V/3.1V/3.4V/3.7V/4.0V/4.3V (can be disabled)
21.	Five Power Operation Modes
	Fast/Slow/Idle/Stop/Halt mode
22.	Integrated 16-bit Cyclic Redundancy Check function
23.	On-chip Debug/ICE interface
	Use P3.0/P3.1 pin or P0.0/P0.1 pin 
	Share with ICP programming pin
24.	Operating Voltage and Current
	VCC = 2.2V ~ 5.5V @FSYSCLK=14.7456 MHz (-40℃ ~ 85℃)
	ICC = 0.1µA @Stop mode, PWRSAV=1, VCC=3V
	ICC = 5.5µA @Halt mode, PWRSAV=1, VCC=3V
	ICC = 16µA @Idle mode, PWRSAV=1, VCC=3V
25.	Operating Temperature Range
	–40°C ~ +85°C
 
26.	Package Types
	28-pin SOP (300 mil)
	28-pin SSOP (150 mil)
	28-pin QFN (4x4x0.75-0.4mm)
	24-pin SSOP (150 mil)
	20-pin SOP (300 mil)
	20-pin QFN (3x3x0.75-0.4mm) (L=0.25mm)
	16-pin SOP (150 mil)


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