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74HC4051 Datasheet(PDF) 2 Page - NXP Semiconductors |
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74HC4051 Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 16 page December 1990 2 Philips Semiconductors Product specification 8-channel analog multiplexer/demultiplexer 74HC/HCT4051 FEATURES • Wide analog input voltage range: ± 5V. • Low “ON” resistance: 80 Ω (typ.) at VCC − VEE = 4.5 V 70 Ω (typ.) at VCC − VEE = 6.0 V 60 Ω (typ.) at VCC − VEE = 9.0 V • Logic level translation: to enable 5 V logic to communicate with ± 5 V analog signals • Typical “break before make” built in • Output capability: non-standard • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT4051 are high-speed Si-gate CMOS devices and are pin compatible with the “4051” of the “4000B” series. They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT4051 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). 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. VCC and GND are the supply voltage pins for the digital control inputs (S0 to S2, and E). The VCC to GND ranges are 2.0 to 10.0 V for HC and 4.5 to 5.5 V for HCT. The analog inputs/outputs (Y0 to Y7, and Z) can swing between VCC as a positive limit and VEE as a negative limit. VCC − VEE may not exceed 10.0 V. For operation as a digital multiplexer/demultiplexer, VEE is connected to GND (typically ground). QUICK REFERENCE DATA VEE = GND = 0 V; Tamb =25 °C; tr =tf = 6 ns Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD =CPD × VCC2 × fi + ∑{ (CL +CS )× VCC2 × fo } where: fi = input frequency in MHz fo = output frequency in MHz ∑ {(CL +CS)× VCC2 × fo } = sum of outputs CL = output load capacitance in pF CS = max. switch capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC − 1.5 V SYMBOL PARAMETER CONDITIONS TYPICAL UNIT HC HCT tPZH/ tPZL turn “ON” time CL = 15 pF; RL =1kΩ; VCC =5V E to Vos 22 22 ns Sn to Vos 20 24 ns tPHZ/ tPLZ turn “OFF” time E to Vos 18 16 ns Sn to Vos 19 20 ns CI input capacitance 3.5 3.5 pF CPD power dissipation capacitance per switch notes 1 and 2 25 25 pF CS max. switch capacitance independent (Y) 5 5 pF common (Z) 25 25 pF |
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