BU4021BF
Standard ICs
8-bit static shift register
BU4021B / BU4021BF
The BU4021B and BU4021BF are 8-bit static shift registers consisting of 8 register cells, each of which has parallel input. Control of the parallel / serial control input (P / S) enables serial input / serial output with clock synchronization, as well as parallel input / serial output conversions.
- Absolute maximum ratings (V
Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Input voltage
= 0V, Ta = 25°C)
Symbol VDD Pd Topr Tstg VIN Limits
- 0.3 ~ + 18 1000 (DIP), 500 (SOP)
- 40 ~ + 85
- 55 ~ + 150
- 0.3 ~ VDD + 0.3 Unit V m W °C °C V
- Logic circuit diagram
P/S (9) Ds (11) CLOCK (10) P1 (7) P2 (6) P3 (5) P4 (4) P5 (13) P6 (14) P7 (15) P8 (1)
- Block diagram
P8 1 P8 Q6 2 Q6 Q8 3 Q8 P4 4 P4 P3 5 P3 P2 (2) Q6 (12) Q7 (3) Q8 P1 6 P2 DS CLOCK 11 Q7 12 Q7 DS P5 13 P5 P7 P6 14 P6 16 VDD 15 P7
P1
P/S
CLOCK...
