74HC540D,652

74HC540 74HCT540 Octal buffer/line driver 3-state inverting Rev. 6 19 October 2021 Product data sheet 1. General description The 74HC540 74HCT540 is an 8-bit inverting buffer/line driver with 3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V . CC 2. Features and benefits Wide supply voltage range from 2.0 V to 6.0 V CMOS low power dissipation High noise immunity Latch-up performance exceeds 100 mA per JESD 78 Class II Level B Inverting outputs Input levels: For 74HC540: CMOS level For 74HCT540: TTL level Complies with JEDEC standards JESD8C (2.7 V to 3.6 V) JESD7A (2.0 V to 6.0 V) ESD protection: HBM JESD22-A114F exceeds 2000 V MM JESD22-A115-A exceeds 200 V Multiple package options Specified from -40 C to +85 C and from -40 C to +125 C 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC540D -40 C to +125 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm 74HCT540D 74HC540DB -40 C to +125 C SSOP20 plastic shrink small outline package 20 leads SOT339-1 body width 5.3 mm 74HCT540DB 74HC540PW -40 C to +125 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm 74HCT540PWNexperia 74HC540 74HCT540 Octal buffer/line driver 3-state inverting 4. Functional diagram A0 Y0 2 18 Y1 A1 3 17 Y2 A2 4 16 Y3 A3 5 15 1 & EN 19 Y4 A4 6 14 A5 Y5 2 18 7 13 3 17 A6 Y6 4 16 8 12 5 15 6 14 A7 Y7 9 11 7 13 8 12 OE1 1 9 11 19 OE2 aaa-006167 aaa-006168 Fig. 1. Logic symbol Fig. 2. IEC logic symbol A0 Y0 2 18 A1 Y1 3 17 A2 Y2 4 16 A3 Y3 5 15 Y4 A4 6 14 A5 Y5 7 13 A6 Y6 8 12 A7 Y7 9 11 OE1 1 19 OE2 aaa-006169 Fig. 3. Functional diagram 74HC HCT540 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 6 19 October 2021 2 / 15