80C51 Microcontroller - 4T

A leading supplier of 8051 compatible microcontrollers, Nuvoton offers a wide range of parts that meets the price/performance demand of industrial and consumer products OEMs. The 8-bit μCs are supported by leading tool makers for rapid product development. ROM-less, ROM and Flash types are available with a rich set of I/O such as PWM, GPIO, DPTR, PCA Timers, ADC and more. 4T, 6T and 12T cores running at up to 40MHz provide one of the industry's best choices of 8051 μCs.

Please click on each part number and Application Note for more information.

Turbo-51(4T 8051 core) Series

Enhanced-51(4T 8051 core) Series

Feature Rich-51(4T 8051 core) Series - Industrial grade

Turbo-51(4T 8051 core) Series

Part No. ROM Type ROM
(Byte)		 RAM
(Byte)		 I/O Pins External
Memory
Space
(Byte)		 Op.
Volt		 Timer/ Counter Int ISP/
ICP		 Special Function PACKAGE Status* RoHS Datasheet
W77E058A Flash EPROM 32K 1K+
256		 32/36 64K 5.5V-4.5V 3 12 - -4T / machine cycle
-Dual UARTs and DPTRs
-Wait-state control signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44
 P Y Available
W77L058A Flash EPROM 32K 1K+
256		 32/36 64K 5.5V-2.7V 3 12 - -4T / machine cycle
-5.5V~2.7V Supply Voltage
-Dual UARTs and DPTRs
-Wait-state control signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44		 P Y Available
W77E516A Flash EPROM 64K 1K+
256		 32/36 64K 5.5V- 4.5V 3 12 ISP -4T / Machine Cycle
-Dual UARTs and DPTRs
-Wait-State Control Signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44		 P Y Available
W77L516A Flash EPROM 64K 1K+
256		 32/36 64K 5.5V- 2.7V 3 12 ISP -4T / Machine Cycle
-Dual UARTs and DPTRs
-Wait-State Control Signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44		 P Y Available
W77E532A  Flash EPROM 128K 1K+
256		 32/36 64K 5.5V- 4.5V 3 12 ISP -4T / Machine Cycle
-Dual UARTs and DPTRs
-Wait-State Control Signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44		 P Y Available
W77L532A   Flash EPROM 128K 1K+
256		 32/36 64K 5.5V- 2.7V 3 12 ISP -4T / Machine Cycle
-Dual UARTs and DPTRs
-Wait-State Control Signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44		 P Y Available
W77C032A ROMless - 1K+
256		 32/36 64K 5.5V- 4.5V 3 12 - -4T / machine cycle
-Dual UARTs and DPTRs
-Wait-state control signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44		 P Y Available
W77L032A ROMless - 1K+
256		 32/36 64K 5.5V- 2.7V 3 12 - -4T / machine cycle
-5.5V~2.7V Supply Voltage
-Dual UARTs and DPTRs
-Wait-state control signal
-WDT
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port		 PDIP40
PLCC44
PQFP44		 P Y Available

*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

Enhanced-51(4T 8051 core) Series

Part No. ROM Type ROM
(Byte)		 RAM
(Byte)		 I/O Pins External Memory Space
(Byte)		 Op.
Volt		 Timer/ Counter Int ISP/
ICP		 Special
Function		 PACKAGE Status* RoHS Datasheet
N79E352
N79E352R  		 Flash EPROM 8K 256 32/36 64K 5.5V-4.5V up to 24MHz
5.5V–2.7V up to 12MHz
5.5V-2.4V up to 4MHz		 3 11 ICP -4T/ Machine Cycle
- On-chip configurable RC oscillator
-One UART
-Dual DPTR
-BOR
-WDT
-2 channel 8 bit PWM
-128 bytes NVM Data Flash EPROM
-One I2C communication port
-Eight keypads interrupt inputs with sharing the same interrupt source
-One channel input capture		 PDIP40
PLCC44
PQFP44
LQFP48		 P Y Available
W79E201A Flash EPROM 16K 256 33 64K 5.5V -
4.5V		 3 8 ISP -4T/ Machine Cycle
-One UART and DPTR
-WDT. 6 channel PWM
-25 I/O pins
-8 input only pins
-10 bits ADC with 8 channel analog input
- Embedded ICE (In-Circuit Emulation) function with JTAG interface to development tool		 PLCC44
PQFP44		 P Y Available
W79E632A Flash EPROM 128K 1K+
256		 32/36 64K 5.5V-4.5V up to 40MHz 3 7 ISP -4T/ Machine Cycle
-One UART and DPTR
-WDT. PWM
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port
-With ICE tool		 PDIP40
PLCC44
PQFP44		 P Y Available
W79L632A 5.5V-3.0V up to 20MHz Available
W79E648A Flash EPROM 128K 1K+
256		 60 64K 5.5V-4.5V up to 40MHz 3 7 ISP -4T/ Machine Cycle
-One UART and DPTR
-WDT. PWM
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port
-With ICE tool		 PLCC68 P Y Available
W79L648A 5.5V-3.0V up to 20MHz Available
W79E649A Flash EPROM 32K + accessi-bility to external ROM 1K+
256		 60 64K 5.5V-4.5V up to 40MHz 3 7 ISP -4T/ Machine Cycle
-One UART and DPTR
-WDT. PWM
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port
-With ICE tool		 PLCC68 P Y Available
W79L649A 5.5V-3.0V up to 20MHz Available
W79E633A Flash EPROM 128K 1K+256 36 64K 5.5V-4.5V up to 40MHz 3 10 ISP -4T/ Machine Cycle
-One UART and DPTR
-WDT. PWM
-2-ch I²C
-4-ch ADC
-On-chip 1K
Bytes MOVX
SRAM
-Extra I/O
port
-With ICE tool		 PLCC44 P Y Available
W79L633A 5.5V-3.0V up to 25MHz Available
W79E658A Flash EPROM 128K 1K+256 60 64K 5.5V-4.5V up to 40MHz 3 10 ISP -4T/ Machine Cycle
-One UART and DPTR
-WDT. PWM
-2-ch I²C
-8-ch ADC
-On-chip 1K
Bytes MOVX
SRAM
-Extra I/O
port
-With ICE tool		 PQFP100 P Y Available
W79L658A 5.5V-3.0V up to 25MHz Available
W79E659A Flash EPROM 32K + accessi-bility to external ROM 1K+256 60 64K 5.5V-4.5V up to 40MHz 3 10 ISP -4T/ Machine Cycle
-One UART and DPTR
-WDT. PWM
-2-ch I²C
-8-ch ADC
-On-chip 1K Bytes MOVX SRAM
-Extra I/O port  
-With ICE tool		 PQFP100 P Y Available
W79L659A 5.5V~3.0V up to 25MHz Available

*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

Feature Rich-51(4T 8051 core) Series - Industrial grade

Part No. ROM Type ROM
(Byte)		 RAM
(Byte)		 NVM
Data
Flash 		I/O Pins Speed
MHz 		Op.
Volt 		Timer/ Counter Int ISP/
ICP 		Special
Function 		PACKAGE* Status** RoHS Datasheet
W79E217 Flash EPROM 64K 256 + 2KB 2KB 60 33 5.5V - 2.7V 4 20 ISP
-4T/ Machine Cycle
-WDT
-12bit PWM x8 & QEI
-10-bit ADC x8
-2UART & SPI & I²C
-32*4 LCD driver
-3 Input Capture
F100 P Y Available
W79E225 Flash EPROM 16K 256 +1KB 1KB 34/38 40 5.5V - 2.7V 4 20 ISP -4T/ Machine Cycle
-WDT
-12bit PWM x8 & QEI
-10-bit ADC x8
-2UART & SPI & I²C
-3 Input Capture		 L48/P44 P Y Available
W79E226 Flash EPROM 32K 256
+2KB		 2KB 34/38 40 5.5V - 2.7V 4 20 ISP -4T/ Machine Cycle
-WDT
-12bit PWM x8 & QEI
-10-bit ADC x8
-2UART & SPI & I²C
-3 Input Capture		 L48/P44 P Y Available
W79E227 Flash EPROM 64K 256 + 2KB 2KB 34/38 40 5.5V - 2.7V 4 20 ISP -4T/ Machine Cycle
-WDT
-12bit PWM x8 & QEI
-10-bit ADC x8
-2UART & SPI & I²C
-3 Input Capture 		L48/ P44 P Y Available
*Package: D=DIP, S=SOP, F=PQFP/QFP, L=LQFP, P=PLCC
**Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life

Contact us:  MicroC-8bit@nuvoton.com