74HC4851D,112

74HC4851 74HCT4851 8-channel analog multiplexer/demultiplexer with injection-current effect control Rev. 3 24 August 2018 Product data sheet 1. General description The 74HC4851 74HCT4851 are high-speed Si-gate CMOS devices and are specified in compliance with JEDEC standard no. 7A. The 74HC4851 74HCT4851 are 8-channel analog multiplexers/demultiplexers with three digital select inputs (S0 to S2), an active-LOW enable input (E), eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z). The devices feature injection-current effect control, which has excellent value in automotive applications where voltages in excess of the supply voltage are common. With E LOW, one of the eight switches is selected (low impedance ON-state) by S0 to S2. With E HIGH, all switches are in the high-impedance OFF-state, independent of S0 to S2. The injection-current effect control allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel. This eliminates the need for external diode/resistor networks typically used to keep the analog channel signals within the supply-voltage range. 2. Features and benefits Injection-current cross coupling < 1 mV/mA Wide supply voltage range from 2.0 V to 6.0 V for 74HC4851 ESD protection: HBM JESD22-A114E exceeds 2000 V CDM JESD22-C101C exceeds 1000 V Latch-up performance exceeds 100 mA per JESD 78 Class II level A Low ON-state resistance: 400 (typical) at V = 2.0 V CC 215 (typical) at V = 3.0 V CC 120 (typical) at V = 3.3 V CC 76 (typical) at V = 4.5 V CC 59 (typical) at V = 6.0 V CC 3. Applications Analog multiplexing and demultiplexing Digital multiplexing and demultiplexing Signal gatingNexperia 74HC4851 74HCT4851 8-channel analog multiplexer/demultiplexer with injection-current effect control 4. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC4851D -40 C to +125 C SO16 plastic small outline package 16 leads SOT109-1 body width 3.9 mm 74HCT4851D 74HC4851PW -40 C to +125 C TSSOP16 plastic thin shrink small outline package SOT403-1 16 leads body width 4.4 mm 74HCT4851PW 74HC4851BQ -40 C to +125 C DHVQFN16 plastic dual in-line compatible thermal SOT763-1 enhanced very thin quad flat package no leads 74HCT4851BQ 16 terminals body 2.5 3.5 0.85 mm 5. Functional diagram 11 0 10 0 8 X 9 7 2 6 G8 Y0 13 S0 Y1 MUX/DMUX 11 14 13 0 S1 Y2 10 15 14 1 S2 Y3 9 12 15 2 Y4 1 12 3 3 Y5 1 5 4 Y6 5 2 5 E Y7 2 6 6 4 3 4 7 Z 001aad541 001aad542 Fig. 1. Logic symbol Fig. 2. IEC logic symbol 74HC HCT4851 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2018. All rights reserved Product data sheet Rev. 3 24 August 2018 2 / 19