74LVC257ADB NXP

74LVC257A Quad 2-input multiplexer with 5 V tolerant inputs/outputs 3-state Rev. 7 26 June 2020 Product data sheet 1. General description The 74LVC257A is a quad 2-input multiplexer with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (pin S). The data inputs from source 0 (pins 1I0 to 4I0) are selected when pin S is LOW and the data inputs from source 1 (pins 1I1 to 4I1) are selected when pin S is HIGH. Data appears at the outputs (pins 1Y to 4Y) in true (non-inverting) form from the selected inputs. The device is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to pin S. The outputs are forced to a high-impedance OFF-state when pin OE is HIGH. Inputs can be driven from either 3.3 V or 5.0 V devices. When disabled, up to 5.5 V can be applied to the outputs. These features allow the use of these devices as translators in mixed 3.3 V and 5 V applications. 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 Output drive capability 50 transmission lines at 85 C 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 C 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74LVC257AD -40 C to +125 C SO16 plastic small outline package 16 leads SOT109-1 body width 3.9 mm 74LVC257ADB -40 C to +125 C SSOP16 plastic shrink small outline package 16 leads SOT338-1 body width 5.3 mm 74LVC257APW -40 C to +125 C TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 74LVC257ABQ -40 C to +125 C DHVQFN16 plastic dual in-line compatible thermal enhanced SOT763-1 very thin quad flat package no leads 16 terminals body 2.5 3.5 0.85 mmNexperia 74LVC257A Quad 2-input multiplexer with 5 V tolerant inputs/outputs 3-state 4. Functional diagram 1 G1 15 1I0 2 EN 3 1I1 2 MUX 1 1Y 2I0 5 4 4 3 1 2Y 6 2I1 7 5 7 11 3I0 3Y 9 6 10 12 3I1 4Y 11 9 14 4I0 10 13 4I1 14 12 S OE 13 mna865 1 15 mna866 Fig. 1. Logic diagram Fig. 2. IEC logic symbol 1I1 1Y 1I0 2I1 2Y 2I0 1I0 2 1Y 4 1I1 3 3I1 3Y 2I0 5 2Y 7 3-STATE 2I1 6 3I0 MULTI- SELECTOR 3I0 11 PLEXER 3Y 9 OUTPUTS 3I1 10 4I1 4I0 4Y 14 4Y 12 4I1 13 4I0 S 1 OE 15 OE S mna867 mna868 Fig. 3. Functional diagram Fig. 4. Logic diagram 74LVC257A All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 7 26 June 2020 2 / 15