80C51 Microcontroller - 12T

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.

Standard Parts

Wide Supply Voltage Standard Parts

Industrial Temperature Series

Standard Parts

Part No.

ROM Type

ROM

RAM

I/O Pins

External Memory Space

Speed MHz

Timer/ Counter

Int

ISP/ ICP

Special Function

PACKAGE

Status*

RoHS

PDIP

PLCC

PQFP

W78E051C

Flash EPROM

4K

128

32/36

64K

40

2

5/7

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78E052C

Flash EPROM

8K

256

32/36

64K

40

3

6/8

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78E054C

Flash EPROM

16K

256

32/36

64K

40

3

6/8

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78E058B

Flash EPROM

32K

256

32/36

64K

40

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3

40

44

44

P

Y

W78E058D Flash EPROM 32K 256 32/36 64K 40 3 6/8 ISP -In-system Programming
-Extra I/O Port, / INT2, /INT3
40 44 44 P Y

W78E516B

Flash EPROM

64K

512

32/36

64K

40

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3

40

44

44

P

Y

W78E516D Flash EPROM 64K 512 32/36 64K 40 3 6/8 ISP -In-system Programming
-Extra I/O Port, / INT2, /INT3
40 44 44 P Y

W78E365A

Flash EPROM

64K

1280

32/36

64K

40

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3
-WDT
-PWM

40

44

44

P

Y

W78ERD2A

Flash EPROM

64K

1280

32/36

64K

40

3

9

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3
-WDT, PWM, PCA
-High ESD, EMC immunity

40

44

44

P

Y

W78E858A

Flash EPROM

32K

768

32/36

64K

40

3

14

ISP

-In-system Programming
-128 bytes EEPROM
-Extra I/O Port, / INT2~INT9, 4 channels PWM

40

44

44

P

Y

W78C051D

Mask

4K

128

32/36

64K

40

2

5/7

-

-Extra I/O Port, / INT2, /INT3-WDT

40

44

44

P

Y

W78C052D

Mask

8K

256

32/36

64K

40

3

6/8

-

-Extra I/O Port, / INT2, /INT3
-WDT

40

44

44

P

Y

W78C054A

Mask

16K

256

32/36

64K

40

3

6/8

-

-Extra I/O Port, / INT2, /INT3

40

44

44

P

Y

W78C032C

ROMless

-

256

32

64K

40

3

6

-

CMOS General purpose

40

44

44

P

Y

W78C438C

ROMless

-

256

40

1 M

40

3

8

-

-5 pure ports I/O expanded
-1 MB external memory space
-Additional INT2, INT3

-

84

100

P

Y

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

Wide Supply Voltage Standard Parts

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

W78L051A

Flash EPROM

4K

128

32/36

64K

5.5V - 2.4V

2

5/7

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78L052A

Flash EPROM

8K

256

32/36

64K

5.5V - 2.4V

3

6/8

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78L054A

Flash EPROM

16K

256

32/36

64K

5.5V - 2.4V

3

6/8

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78L051C

Flash EPROM

4K

128

32/36

64K

5.5V - 2.4V

2

5/7

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78L052C

Flash EPROM

8K

256

32/36

64K

5.5V - 2.4V

3

6/8

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78L054C

Flash EPROM

16K

256

32/36

64K

5.5V - 2.4V

3

6/8

-

-Extra I/O Port,/INT2,
/INT3
-WDT

40

44

44

P

Y

W78L058A

Flash EPROM

32K

256

32/36

64K

5.5V - 2.4V

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3

40

44

44

P

Y

W78L516A

Flash EPROM

64K

512

32/36

64K

5.5V - 2.4V

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3

40

44

44

P

Y

W78L365A

Flash EPROM

64K

1280

32/36

64K

5.5V - 2.4V

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3
-WDT
-PWM

40

44

44

P

Y

W78L812A

Flash EPROM

8K

256

33/37

64K

5.5V - 2.4V

3

14

-

-Extra I/O Port
-Wake-up the Power-Down mode from Port1 interrupt
-WDT
-UART

40

44

44

P

Y

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

Industrial Temperature 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

W78IRD2A 

Flash EPROM

64K

1280

32/36

64K

5.5V - 2.4V

3

9

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3, WDT
-WDT, PWM, PCA
-High ESD, EMC immunity

40

44

-

P

Y

W78I058D

Flash EPROM

32K

256

32/36

64K

5.5V - 2.4V

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3

40

44

44

P

Y

W78I516D

Flash EPROM

64K

512

32/36

64K

5.5V - 2.4V

3

6/8

ISP

-In-system Programming
-Extra I/O Port, / INT2, /INT3

40

44

44

P

Y

*  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