74LVCH244ABQ Nexperia

74LVC244A 74LVCH244A Octal buffer/line driver 3-state Rev. 8 26 June 2013 Product data sheet 1. General description The 74LVC244A 74LVCH244A is an octal non-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. Schmitt-trigger action at all inputs makes the circuit highly tolerant for slower input rise and fall times. Inputs can be driven from either 3.3 V or 5.0 V devices. In 3-state operation, outputs can handle 5 V. These features allow the use of these devices as translators in a mixed 3.3 V and 5 V environment. The 74LVCH244A bus hold on data inputs eliminates the need for external pull-up resistors to hold unused inputs. 2. Features and benefits 5 V tolerant inputs/outputs for interfacing with 5 V logic Wide supply voltage range from 1.2 V to 3.6 V CMOS low-power consumption Direct interface with TTL levels Inputs accept voltages up to 5.5 V High-impedance when V = 0 V CC Bus hold on all data inputs (74LVCH244A only) Complies with JEDEC standard: JESD8-7A (1.65 V to 1.95 V) JESD8-5A (2.3 V to 2.7 V) JESD8-C/JESD36 (2.7 V to 3.6 V) ESD protection: HBM JESD22-A114F exceeds 2000 V MM JESD22-A115B exceeds 200 V CDM JESD22-C101E exceeds 1000 V Specified from 40 C to +85 C and 40 C to +125 C74LVC244A 74LVCH244A NXP Semiconductors Octal buffer/line driver 3-state 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74LVC244AD 40 C to +125 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm 74LVCH244AD 74LVC244ADB 40 C to +125 C SSOP20 plastic shrink small outline package 20 leads SOT339-1 body width 5.3 mm 74LVCH244ADB 74LVC244APW 40 C to +125 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm 74LVCH244APW 74LVC244ABQ 40 C to +125 C DHVQFN20 plastic dual in-line compatible thermal enhanced SOT764-1 very thin quad flat package no leads 20 terminals 74LVCH244ABQ body 2.5 4.5 0.85 mm 74LVC244ABX 40 C to +125 C DHXQFN20 plastic dual in-line compatible thermal enhanced SOT1045-2 extremely thin quad flat package no leads 20 74LVCH244ABX terminals body 4.5 2.5 0.5 mm 4. Functional diagram 2 18 17 3 1A0 1Y0 2A0 2Y0 4 15 16 5 1A1 2A1 1Y1 2Y1 6 13 14 7 1A2 1Y2 2A2 2Y2 8 11 12 9 1A3 1Y3 2A3 2Y3 1 19 1OE 2OE mna874 Fig 1. Logic symbol 74LVC LVCH244A All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 8 26 June 2013 2 of 19