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74HC251
74HC251; 74HCT251 8-input multiplexer; 3-state Rev. 3 — 9 July 2013 Product data sheet 1. General description The 74HC251; 74HCT251 is an 8-bit multiplexer with eight binary inputs (I0 to I7), three select inputs (S0 to S2) and an output enable input (OE). The select inputs select one of the eight binary inputs and route it to the complementary outputs (Y and Y). A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC. 2. Features and benefits Input levels: For 74HC251: CMOS level For 74HCT251: TTL level Low-power dissipation Non-inverting data path Specified in compliance with JEDEC standard no. 7A ESD protection: HBM JESD22-A114F exceeds 2 000 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 74HC251N Name Description Version 40 C to +125 C DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4 40 C to +125 C SO16 plastic small outline package; 16 leads; body width SOT109-1 3.9 mm 40 C to +125 C SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm 40 C to +125 C TSSOP16 plastic thin shrink small outline package; 16 leads; SOT403-1 body width 4.4 mm 74HCT251N 74HC251D 74HCT251D 74HC251DB 74HCT251DB 74HC251PW 74HCT251PW SOT338-1
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