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74LV20 Datasheet(PDF) 2 Page - NXP Semiconductors |
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74LV20 Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 12 page Philips Semiconductors Product specification 74LV20 Dual 4-input NAND gate 2 1998 Apr 20 853–1962 19256 FEATURES • Optimized for Low Voltage applications: 1.0 to 3.6V • Accepts TTL input levels between V CC = 2.7V and VCC = 3.6V • Typical V OLP (output ground bounce) t 0.8V @ VCC = 3.3V, Tamb = 25°C • Typical V OHV (output VOH undershoot) u 2V @ VCC = 3.3V, Tamb = 25°C • Output capability: standard • I CC category: SSI DESCRIPTION The 74LV20 is a low–voltage Si–gate CMOS device and is pin and function compatible with 74HC/HCT20. The 74LV20 provides the 4–input NAND function. QUICK REFERENCE DATA GND = 0V; Tamb = 25°C; tr =tf v2.5 ns SYMBOL PARAMETER CONDITIONS TYPICAL UNIT tPHL/tPLH Propagation delay nA, nB, nC, nD to nY CL = 15pF VCC = 3.3V 8 ns CI Input capacitance 3.5 pF CPD Power dissipation capacitance per gate Notes 1 and 2 22 pF NOTES: 1CPD is used to determine the dynamic power dissipation (PD in µW) PD = CPD VCC2 x fi )S (CL VCC2 fo) where: fi = input frequency in MHz; CL = output load capacitance in pF; fo = output frequency in MHz; VCC = supply voltage in V; S (CL VCC2 fo) = sum of the outputs. 2 The condition is VI = GND to VCC ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. # 14-Pin Plastic DIL –40 °C to +125°C 74LV20 N 74LV20 N SOT27-1 14-Pin Plastic SO –40 °C to +125°C 74LV20 D 74LV20 D SOT108-1 14-Pin Plastic SSOP Type II –40 °C to +125°C 74LV20 DB 74LV20 DB SOT337-1 14-Pin Plastic TSSOP Type I –40 °C to +125°C 74LV20 PW 74LV20PW DH SOT402-1 PIN DESCRIPTION PIN NUMBER SYMBOL FUNCTION 1, 9 1A to 2A Data inputs 2, 10 1B to 2B Data inputs 3, 11 NC No connection 4, 12 1C to 2C Data inputs 5, 13 1D to 2D Data inputs 6, 8 1Y to 2Y Data outputs 7 GND Ground (0V) 14 VCC Positive supply voltage FUNCTION TABLE INPUTS OUTPUTS nA nB nC nD nY L X X X H X L X X H X X L X H X X X L H H H H H L NOTES: H = HIGH voltage level L = LOW voltage level X = Don’t care |
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