74AHCT244APWJ Nexperia

74AHCT244A Octal buffer/line driver 3-state Rev. 1 23 November 2016 Product data sheet 1. General description The 74AHCT244A is an 8-bit buffer/line driver with 3-state outputs and TTL inputs. The device features two output enables (1OE and 2OE). A HIGH on nOE causes the associated outputs to assume a high-impedance OFF-state. Designed to operate over a V range from 4.5 V to 5.5 V, the inputs are TTL compatible, CC which allows the device to be used to translate from 3.3 V to 5 V. Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times. This device is fully specified for partial Power-down applications using I . OFF The I circuitry disables the output, preventing the damaging backflow current through OFF the device when it is powered down. 2. Features and benefits Direct interface with TTL levels Supply voltage range from 4.5 V to 5.5 V Typical t of 2.8 ns at 5 V pd Typical V < 0.8 V at V = 5 V, T = 25 C OL(p) CC amb Typical V > 2.3 V at V = 5 V, T = 25 C OH(v) CC amb Supports mixed-mode voltage operation on all ports I circuitry provides partial Power-down mode operation OFF Latch-up performance exceeds 250 mA per JESD 78 Class II ESD protection: HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 3 kV MM JESD22-A115-A exceeds 150 V CDM JESD22-C101E exceeds 2 kV Specified from 40 C to +85 C and from 40 C to +125 C74AHCT244A Nexperia Octal buffer/line driver 3-state 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74AHCT244APW 40 C to +125 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm 4. Functional diagram < < < < (1 ( < < (1 < < ( QD P D P Q Fig 1. Logic symbol Fig 2. IEC logic symbol 74AHCT244A All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2017. All rights reserved Product data sheet Rev. 1 23 November 2016 2 of 13 2 2