Nuvoton > Small Home Electronics > Home Appliance

4-Bit Single Chip Micro Mini MCU with small DIE size and Low Power (some devices can operate below 1.5V). All items come with a built-in LCD Segment Driver. This Family is ideal for portable products such as remote controllers, gifts, toys, clocks, timers, and thermometers.

Part No. Working Voltage ROM Size RAM Size Working Frequency System Clock IO LCD Share Output LCD Others Package
W541L20x 1.2-1.8v 2k*16 128*4

H:400KHZ~1MHz,
L:32768Hz

Single
Crystal/RC 		20 - - MFP DIP:18,20,28; SOP:20,28
W541L23x 1.2-3.6v 1/1.5 / 2k*16 64/96 / 128*4

H:100K~800KHz;
L:32768Hz

Single / Dual
Crystal/RC 		12 16 4*16 MFP 44PLCC
W541L240 1.2-1.8v 2k*16 64*4

H:400KHZ~1MHz,
L:32768Hz

Single
Crystal/RC 		12 - 4*24 MFP 80 QFP
W541L250 1.2-1.8v 2k*16 128*4

H:400KHZ~1MHz,
L:32768Hz

Single
Crystal/RC 		20 24 4*24 MFP 80 QFP
W541L261 1.2-3.6v 2k*16 128*4

H:400KHZ~1MHz,

Single / Dual 20 32 4*32 MFP 80 QFP
W541L480 1.2-3.6v 4k*16 256*4

H:400KHZ~1MHz,

Single / Dual 20 32 4*32 MFP 80 QFP
W541C20x 2.4-5.5v 2k*16 128*4

H:400KHZ~4MHz,
L:32768Hz

Single
Crystal/RC 		20 - - MFP DIP:18,20,28; SOP:20,28
W541C250 2.4-5.5v 2k*16 128*4

H:400KHZ~4MHz,
L:32768Hz

Single
Crystal/RC 		20 24 4*24 MFP 80 QFP
W541C261 2.4-5.5v 2k*16 128*4

H:400KHZ~4MHz,
L:32768Hz

Single / Dual
Crystal/RC 		20 32 4*32 MFP 80 QFP
W541C480 2.4-5.5v 4k*16 256*4

H:400KHZ~4MHz,
L:32768Hz

Single / Dual
Crystal/RC 		20 32 4*32 MFP 80 QFP
W536C3A0 2.4-5.5v 32k*20 1.4K*4
Fm:400KHZ~4MHz,
Fs:32768Hz
Dual
Crystal/RC 		12 32 16*64 MFP 128 QFP
W541E20x 2.4-5.5v 2k*16 128*4

H:400KHZ~4MHz,
L:32768Hz

Single
Crystal/RC 		20 - - MFP DIP:18,20,28; SOP:20,28
W541E261 2.4-5.5v 2k*16 128*4

H:400KHZ~4MHz,
L:32768Hz

Single / Dual
Crystal/RC 		20 32 4*32 MFP 80 QFP
W541E480 2.4-5.5v 4k*16 256*4

H:400KHZ~4MHz,
L:32768Hz

Single / Dual
Crystal/RC 		20 32 4*32 MFP 80 QFP
W536E3A0 2.4-5.5v 32k*20 1.4K*4
Fm:400KHZ~4MHz,
Fs:32768Hz
Dual
Crystal/RC 		12 32 16*64 MFP 128 QFP