Quad 2-input NAND gate BU40B / BU40BF / BU40BF The BU40B, BU40BF, and BU40BF are dual-input positive logic NAND gates. Four circuits are contained on a single chip. An inverter-based buffer has been added to the gate output, enabling improved input / output propagation characteristics, and an increased load capacitance minimizes fluctuation in propagation time. Features ) Low power dissipation. 2) Wide range of operating power supply voltage. 3) High input impedance. 4) High fan-out. ) Direct drive of 2 L-TTL inputs and LS-TTL input. Block diagram A 4 B 2 3 A4 O 3 2 B4 O2 4 O4 B2 0 O3 A2 6 9 B3 SS A3 Absolute maximum ratings (SS = 0, Ta = 2 C) Parameter Symbol Limits Unit Power supply voltage 0.3 ~ + Power dissipation Pd 000 (DIP), 40 (SOP) 30 (SSOP-B4) mw Operating temperature Topr 40 ~ + C Storage temperature Tstg ~ + 0 C Input voltage IN 0.3 ~ + 0.3
BU40B / BU40BF / BU40BF Electrical characteristics DC characteristics (unless otherwise noted, SS = 0, Ta = 2 C) Parameter Symbol Min. Typ. Max. Unit Conditions () Measurement circuit 3. Input high-level voltage IH.0 0 Fig..0. Input low-level voltage IL 3.0 0 Fig. 4.0 Input high-level current IIH 0.3 µa IH = Fig. Input low-level current IIL 0.3 µa IL = 0 Fig. 4.9 Output high-level voltage OH 9.9 0 IO = 0mA Fig. 4.9 0.0 Output low-level voltage OL 0.0 0 IO = 0mA Fig. 0.0 0.6 OH = 4.6 Output high-level current IOH 0.4 ma 0 OH = 9. Fig..2 OH = 3. 0.44 OL = 0.4 Output low-level current IOL. ma 0 OL = 0. Fig. 3.0 OL =. Static current dissipation IDD 2 µa 0 I = or GND 4 2
BU40B / BU40BF / BU40BF Switching characteristics (unless otherwise noted, Ta = 2 C, ss = 0, CL = 0pF) Parameter Symbol Min. Typ. Max. Unit. Conditions () Measurement circuit 0 360 Output rise time ttlh 90 0 ns 0 6 30 00 200 Output fall time tthl 0 00 ns 0 40 0 90 0 L to H Propagation delay time tplh 0 00 ns 0 40 0 90 0 H to L Propagation delay time tphl 0 00 ns 0 40 0 Input capacitance CIN pf Measurement circuits A GND Fig. DC characteristics 20ns 20ns Input waveform 90% 0% 0% tphl tplh P.G CL = 0pF Output waveform 90% 0% 0% GND tthl ttlh Fig. 2 Switching characteristics 3
Electrical characteristic curve 200 BU40B / BU40BF / BU40BF POWER DISSIPATION : Pd (mw) 000 DIP4 00 600 SOP4 400 SSOP - B4 200 0 0 2 0 00 2 0 AMBIENT TEMPERATURE: Ta ( C) Fig. 3 Power dissipation vs. Ta External dimensions (Units: mm) BU40B BU40BF 3.2 ± 0.2 4.2 ± 0.3 0.Min. 9.4 ± 0.3 4 6. ± 0.3 2.4 0. ± 0..62 0 ~ 0.3 ± 0. 6.2 ± 0.3. ± 0. 4.4 ± 0.2 0.. ± 0.2 4.2 0.4 ± 0. 0.3Min. 0. ± 0. 0. DIP4 SOP4 BU40BF.0 ± 0.2 4 6.4 ± 0.3. ± 0. 0. 4.4 ± 0.2 0.6 0.22 ± 0. 0.3Min. 0. ± 0. SSOP - B4 0. 4
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