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

RAM

I/O Pins

External
Memory
Space

Op.
Volt

Timer/ Counter

Int

ISP/
ICP

Special Function

PACKAGE

Status*

RoHS

PDIP

PLCC

PQFP

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

40

44

44

P

Y

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

40

44

44

P

Y

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

40

44

44

P

Y

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

40

44

44

P

Y

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

40

44

44

P

Y

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

40

44

44

P

Y

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

40

44

44

P

Y

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

40

44

44

P

Y

*  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 RAM I/O Pins External Memory Space Op.
Volt
Timer/ Counter Int ISP/
ICP
Special
Function
PACKAGE Status* RoHS
PDIP PLCC PQFP
N79E352
N79E352R
 
Flash EPROM 8K 256 32/36 64K 5.5V -
4.5V
3 10 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
40 44 44 P Y
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
- 44 44 P Y
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
40 44 44 P Y
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
- 68 - P Y
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
- 68 - P Y
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 1K
Bytes MOVX
SRAM
-Extra I/O
port
-With ICE tool
- 44 - P Y
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 1K
Bytes MOVX
SRAM
-Extra I/O
port
-With ICE tool
- - 100 P Y
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
- - 100 P Y
W79L659A 5.5V~3.0V up to 25MHz

*  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

RAM

NVM
Data
Flash

I/O Pins

Speed
MHz

Op.
Volt

Timer/ Counter

Int

ISP/
ICP

Special
Function

PACKAGE*

Status**

RoHS

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

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

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

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


*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