Productos
74HC595D118 from NXP is an 8-bit serial-in/parallel-out shift register with output latch. 2-6V. 78MHz shift freq. 3-state outputs. SOIC-16. 118 = tape-and-reel.
Principio de funcionamiento
Serial data shifted through 8 flip-flops on rising SRCLK. RCLK latches data to outputs. SRCLR clears shift register. OE enables 3-state outputs. Daisy-chain via Q7S for unlimited expansion.
Pin Description
| Pin | Nombre | Función |
|---|---|---|
| 14 | SER | Serial data in |
| 11 | SRCLK | Shift register clock |
| 12 | RCLK | Storage register clock |
| 13 | OE | Output enable |
| 10 | SRCLR | Shift register clear |
| 9 | Q7S | Serial out (cascade) |
Aplicaciones
- LED matrix driving
- GPIO expansion
- Display multiplexing
Alternative Models
| Fabricante | Número de pieza | Notas |
|---|---|---|
| NXP | 74HCT595D | TTL input version |