74HC240DB

74HC240 74HCT240 Octal buffer/line driver 3-state inverting Rev. 03 2 August 2007 Product data sheet 1. General description The 74HC240 74HCT240 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). The 74HC240 74HCT240 is a dual octal inverting buffer/line driver with 3-state outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high impedance OFF-state. The 74HC240 74HCT240 is similar to the 74HC244 74HCT244 but has inverting outputs. 2. Features Inverting 3-state outputs Multiple package options Complies with JEDEC standard no. 7 A ESD protection: HBM JESD22-A114-D exceeds 2000 V MM JESD22-A115-A exceeds 200 V Specied from - 40 Cto+85 C and from - 40 C to +125 C 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC240 74HC240N - 40 C to +125 C DIP20 plastic dual in-line package 20 leads (300 mil) SOT146-1 74HC240D - 40 C to +125 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm 74HC240DB - 40 C to +125 C SSOP20 plastic shrink small outline package 20 leads SOT339-1 body width 5.3 mm 74HC240PW - 40 C to +125 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm 74HC240BQ - 40 C to +125 C DHVQFN20 plastic dual-in-line compatible thermal enhanced SOT764-1 very thin quad at package no leads 20 terminals body 2.5 4.5 0.85 mm 74HCT240 74HCT240N - 40 C to +125 C DIP20 plastic dual in-line package 20 leads (300 mil) SOT146-174HC240 74HCT240 NXP Semiconductors Octal buffer/line driver 3-state inverting Table 1. Ordering information continued Type number Package Temperature range Name Description Version 74HCT240D - 40 C to +125 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm 74HCT240DB - 40 C to +125 C SSOP20 plastic shrink small outline package 20 leads SOT339-1 body width 5.3 mm 74HCT240PW - 40 C to +125 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm 74HCT240BQ - 40 C to +125 C DHVQFN20 plastic dual-in-line compatible thermal enhanced SOT764-1 very thin quad at package no leads 20 terminals body 2.5 4.5 0.85 mm 4. Functional diagram 2 1A0 1Y0 18 1A1 4 1Y1 16 6 1A2 1Y2 14 8 1A3 12 1Y3 1 EN 1 1OE 2 18 16 4 2 1Y0 18 1A0 2A0 2Y0 17 3 6 14 17 2A0 2Y0 3 8 12 15 2A1 2Y1 5 4 1A1 1Y1 16 15 2A1 2Y1 5 19 EN 2A2 13 2Y2 7 6 1Y2 14 1A2 13 2A2 2Y2 7 11 9 2A3 11 2Y3 9 8 12 1A3 1Y3 13 7 11 2Y3 9 2A3 15 5 2OE 19 1OE 17 3 1 19 2OE mgu779 mgu778 mgu780 Fig 1. Logic symbol Fig 2. IEC logic symbol Fig 3. Functional diagram 74HC HCT240 3 NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 2 August 2007 2 of 18