High-performance microcontroller N76E003T20 in a miniature case SSOP-20 (4mm x 6.5mm) at an extra low price is already in stock!

 The core is 1T-8051;
 18KB FLASH, 1KB RAM;
 12bit ADC - 8 channels;
 UART (2x), I2C, SPI;
 16bit timer - 4x;
 Built-in 16MHz generator;
 Built-in 10kHz generator;
 Ultra-low power consumption (6μA in sleep mode);
 Range of supply voltage: 2.4..5.5V;
 Operating temperature range: -40 .. 105°C.

 Technical information at:
 http://www.nuvoton.com/hq/products/microcontrollers/8bit-8051-mcus/low-pin-count-8051-series/n76e003/