نظرة عامة على المنتج
The 74LV4094D,118 from Nexperia is an 8-bit shift register with output latches and 3-state outputs. It features a cascade output (QS) for daisy-chaining multiple devices, enabling serial-to-parallel conversion for LED displays and I/O expansion with minimal pin count.
المواصفات الرئيسية
| الوظيفة | 8-bit shift register with output latch |
| جهد الإمداد | 1.0V to 5.5V |
| Shift Frequency | Up to 50 MHz at 3.3V |
| Output Drive | ±12 mA at 3.3V |
| Cascade | Yes (QS cascade output) |
| الحزمة | SOIC-16 (3.9×9.9mm) |
مبدأ العمل
Serial data is shifted in through D input on each rising STR clock edge. After 8 bits are loaded, the STROBE input transfers shift register data to the output latches. OE (output enable) controls tri-state outputs. QS cascade output provides the shift register overflow for connecting to the D input of the next device in the chain.
التطبيقات
- LED display driver (serial data)
- I/O port expansion
- Relay / valve control cascade
- GPO expansion via SPI