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.

	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 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 PDIP40PLCC44PQFP44 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 PDIP40PLCC44PQFP44 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 PDIP40PLCC44PQFP44 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 PDIP40PLCC44PQFP44 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 PDIP40PLCC44PQFP44 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 PDIP40PLCC44PQFP44 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 PDIP40PLCC44PQFP44 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 PDIP40PLCC44PQFP44
	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 N79E352 N79E352R Flash EPROM 8K 256 32/36 64K 5.5V-4.5V up to 24MHz5.5V–2.7V up to 12MHz5.5V-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 PDIP40PLCC44PQFP44LQFP48 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 PLCC44PQFP44 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 PDIP40PLCC44PQFP44 W79L632A 5.5V-3.0V up to 20MHz 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 W79L648A 5.5V-3.0V up to 20MHz 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 W79L649A 5.5V-3.0V up to 20MHz 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 1KBytes MOVXSRAM-Extra I/Oport-With ICE tool PLCC44 W79L633A 5.5V-3.0V up to 25MHz 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 1KBytes MOVXSRAM-Extra I/Oport-With ICE tool PQFP100 W79L658A 5.5V-3.0V up to 25MHz 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 W79L659A 5.5V~3.0V up to 25MHz
	Feature Rich-51(4T 8051 core) Series - Industrial grade Part No. ROM Type ROM(Byte) RAM(Byte) NVMDataFlash I/O Pins Speed MHz Op. Volt Timer/ Counter Int ISP/ ICP Special Function PACKAGE* 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 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 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 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