Standard ICs Dual 4-bit static shift register BU4015B / BU4015BF The BU4015B and BU4015BF are 4-stage static shift registers, each consisting of two circuits. The D flip-flops for each stage share a common reset input, enabling external asynchronous reset at any point. Also, the flip-flops at each stage are triggered by the rising edge of the clock input. “H” level reset input resets the contents of all stages to “L”, regardless of the clock and data input, and sets data outputs Q0 to Q3 to “L”. •1)Features Low power dissipation. 2) Wide range of operating power supply voltages. 3) High input impedance. •Block diagram 4) High fan-out. 5) Direct drive of 2 L-TTL inputs and 1 LS-TTL input. •Logic circuit diagram Q1 Q0 CLOCK B 1 16 VDD Q3B 2 15 DB Q2B 3 14 RESET B Q1A 4 13 Q0B Q0A 5 12 Q1B 11 Q2B D CL R D Q3 Q2 Q1 Q0 CLOCK D Q CLR Q D Q CLR Q Q2 D Q CLR Q Q3 D Q CLR Q RESET Q 0 Q1 Q2 Q3 RESET A 6 DA 7 10 Q3A VSS 8 9 CLOCK A CL R D •Truth table CLOCK X D RESET Q0 Q1 Q2 Q3 L H L L Q0 Q1 Q2 L H Q0 Q1 Q2 X L X H No Change L L L L X : Irrelevant 1 Standard ICs BU4015B / BU4015BF •Absolute maximum ratings (V SS = 0V, Ta = 25°C) Parameter Symbol Limits Power supply voltage VDD – 0.3 ~ + 18 V Power dissipation Pd 1000 (DIP), 500 (SOP) mW Operating temperature Topr – 40 ~ + 85 °C Storage temperature Tstg – 55 ~ + 150 °C – 0.3 ~ VDD + 0.3 V Input voltage VIN characteristics •DCElectrical characteristics (unless otherwise noted, Ta = 25°C, V Parameter Input high level voltage Input low level voltage = 0V) Symbol Min. 3.5 — — VIH 7.0 — — 11.0 — — 15 — — 1.5 5 — — 3.0 — — 4.0 VIL Typ. SS Max. Unit Conditions VDD (V) 5 V V 10 — 10 — 15 Input high level current IIH — — 0.3 µA 15 VIH = 15V Input low level current IIL — — – 0.3 µA 15 VIL = 0V 4.95 — — Output high level voltage Output low level voltage VOH VOL Output high level current Output low level current Static current dissipation IOH IOL IDD 5 V 9.95 — — 14.95 — — — — 0.05 — — 0.05 — — 0.05 15 — — 5 – 0.16 2 Unit – 0.4 — — – 1.2 — — 0.44 — — 1.1 — — 3.0 — — — — 20 — — 40 — — 80 10 IO = 0mA 15 5 V mA mA 10 IO = 0mA VOH = 4.6V 10 VOH = 9.5V 15 VOH = 13.5V 5 VOL = 0.4V 10 VOL = 0.5V 15 VOL = 1.5V 5 µA 10 15 VI = VDD or GND Standard ICs BU4015B / BU4015BF Switching characteristics (unless otherwise noted, Ta = 25°C, VSS = 0V, CL = 50pF) Parameter Output rise time Output fall time Propagation delay time, CLOCK, D→Q Propagation delay time, RESET to Q Setup time Minimum clock pulse width Minimum reset pulse width Maximum clock frequency Maximum clock rise time and fall time Input capacitance Symbol tTLH tTHL tPLH tPHL tPLH tPHL tsu tWH (CLK) tWH (R) f (CLK) Max. tr (CLK) tf (CLK) CIN Min. Typ. Max. Unit — 180 — — 90 — — 65 — 15 — 100 — 5 VDD (V) Conditions 5 ns ns 10 — 50 — — 40 — 10 — 310 — — 125 — — 90 — 15 — 460 — 5 — — 15 5 ns ns 10 — 180 — — 120 — 15 — 100 — 5 ns 10 — 50 — — 40 — 10 — 185 — — 85 — — 55 — 15 — 200 — 5 — 80 — — 60 — — 20 — — 6.0 — — 7.5 — 15 — 100 — 5 — 40 — — 15 — — 5 — — — — 15 5 ns ns 10 10 — — 15 5 MHz µs 10 10 — — 15 pF — — 3 Standard ICs BU4015B / BU4015BF •Measurement circuits VDD 20ns 20ns tSU tSU D D P. G. 2 Q0 20ns Q1 tWH Q2 CL R P. G. 1 20ns CLOCK tWH tPLH tPHL 90% Q0 Q3 CL VSS CL CL tTLH CL tPHL 50% 10% 50% tTHL 20ns RESET 10% GND 20ns 90% 50% 10% tWH (R) Fig.1 Switching characteristics measurement circuit Fig.2 Switching time measurement waveform •Electrical characterisistic curve POWER DISSIPATION : Pd (mW) 1200 DIP16 1000 800 600 SOP16 400 200 0 0 25 50 75 100 125 150 AMBIENT TEMPERATURE : Ta (°C) Fig.3 Power dissipation vs. ambient temperature •External dimensions (Units: mm) BU4015B BU4015BF 10.0 ± 0.2 19.4 ± 0.3 8 0.51Min. 6.2 ± 0.3 0.11 0.3 ± 0.1 0.5 ± 0.1 1.5 ± 0.1 3.2 ± 0.2 4.25 ± 0.3 7.62 2.54 9 1 8 1.27 0.4 ± 0.1 0.15 ± 0.1 1 16 4.4 ± 0.2 9 6.5 ± 0.3 16 0.3Min. 0° ~ 15° 0.15 DIP16 4 SOP16