Recommend me a 8052 microcontroller with 4 I/O pins

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Hi,

May i know, there is any least pin and cheap 8052 uC? because i just need 4 I/O.

Anyone can recommend me?

Thank You.
 

Re: Least pin 8052 uC

8-pin versions - 6 general purpose I/Os:

P89LPC901
...
P89LPC908

**broken link removed**

Regards,
IanP
 

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Re: Least pin 8052 uC

Hi,

Do you have the programmer tool for this chips?

Thank You.
 

Re: Least pin 8052 uC

Info on how to use P89LPCXXX In-Circuit proramming (ICP):

**broken link removed**

Regards,
IanP
 

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Re: Least pin 8052 uC

AT89C2051 = 20 pin 2K flash memory, 128 byte RAM, 24 MHz xtal, Vcc=2.7-6.0 Volt
AT89C4051 = 20 pin 4K flash memory, 128 byte RAM, 24 MHz xtal, Vcc=2.7-6.0 Volt

AT89S2051 = 20 pin 2K flash memory, 256 byte RAM, 24 MHz xtal, Vcc=2 .7-5.5 Volt, ISP
AT89S4051 = 20 pin 4K flash memory, 256 byte RAM, 24 MHz xtal, Vcc=2 .7-5.5 Volt, ISP

Use regular Atmel AT89 series Flash Programmer
Vcc=2.7 Volt mean can directly connect AT89x051 to cellphone RX/TX

Atmel 8051 Architecture Product Parametric Table
 

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Least pin 8052 uC

NXP has LPC901/902/903/906/907/908, all are 8-pin. With the internal oscillator you can use up to 6 I/O pins.
For programming, you can use the MCB900 from Keil and an adapter that you can order @ www.lpctools.com
Software that comes with the MCB900 is good for 4k code size. The devices can store up to 1k code and 128 bytes SRAM.

Robert
 

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Re: Least pin 8052 uC

you may use ATtiny15 or attiny13
 

Re: Least pin 8052 uC

yousafzai said:
you may use ATtiny15 or attiny13
Click to expand...
TINY series is from AVR family, not 8051/52.
 

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