AT89C2051 4-Digit Digital Clock DIY Kit (YSZ-4) is a classic electronics learning kit built around the Intel AT89C2051 microcontroller : one of the most widely used chips in electronics education.
Complete Component List:
- 0.25W Resistor 4.7KΩ ×5 (R1, R3–R6)
- Resistor Array 470Ω×9 ×1 (R2)
- Electrolytic Capacitor 10µF ×1 (C1)
- Electrolytic Capacitor 100µF ×1 (C4)
- Ceramic Capacitor 30pF ×2 (C2, C3)
- Ceramic Capacitor 104 ×1 (C5)
- Diode IN4007 ×2 (D1, D2)
- Nixie Tube 0.4″ ×1 (DS1)
- Crystal Oscillator 12MHz ×1 (T1)
- Key Switch 6×6mm ×2 (S1, S2)
- Transistor 8550 ×1 (Q1)
- AT89C2051 Single Chip Microcontroller ×1 (V1)
- DIP20 IC Socket ×1
- Buzzer 5V ×1 (V2)
- Terminal Block KF126-2P ×1 (J1)
- FR-4 Circuit Board ×1
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