نظرة عامة على المنتج
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.
مبدأ العمل
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
| دبوس | الاسم | الوظيفة |
|---|---|---|
| 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 | س 7 س | Serial out (cascade) |
التطبيقات
- LED matrix driving
- GPIO expansion
- Display multiplexing
Alternative Models
| الشركة المصنعة | رقم الجزء | الملاحظات |
|---|---|---|
| NXP | 74HCT595D | TTL input version |