74HC4051 PHILIPS

Document overview

  • PDF pages: 16

Technical content

Page 1

PDF page 1 diagram

Page 2

8-channel analog

multiplexer/demultiplexer

FEATURES

  • Wide analog input voltage range: ± 5 V.
  • 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

QUICK REFERENCE DATA

VEE = GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns

“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).

SYMBOL PARAMETER CONDITIONS TYPICAL UNIT
HC HCT
t / t PZH PZL turn “ON” time E to V os S to V n os C = 15 pF; R = 1 kΩ; L L V = 5 V CC 22 20 22 24 ns ns
t / t PHZ PLZ turn “OFF” time E to V os S to V n os 18 19 16 20 ns ns
C I input capacitance 3.5 3.5 pF
C PD power dissipation capacitance per switch notes 1 and 2 25 25 pF
C S max. switch capacitance independent (Y) common (Z) 5 25 5 25 pF pF

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

Page 3

ORDERING INFORMATION

See “74HC/HCT/HCU/HCMOS Logic Package Information”.

PIN DESCRIPTION

PIN NO. SYMBOL NAME AND FUNCTION
3 6 7 8 11, 10, 9 13, 14, 15, 12, 1, 5, 2, 4 16 Z E V EE GND S to S 0 2 Y to Y 0 7 V CC common input/output enable input (active LOW) negative supply voltage ground (0 V) select inputs independent inputs/outputs positive supply voltage
PDF page 3 diagram
PDF page 3 diagram
PDF page 3 diagram

Fig.2 Logic symbol.

Fig.1 Pin configuration.

Fig.3 IEC logic symbol.

Page 4

APPLICATIONS

  • Analog multiplexing and demultiplexing
  • Digital multiplexing and demultiplexing
PDF page 4 diagram
  • Signal gating

FUNCTION TABLE

Column 1 Column 2 Column 3 Column 4 Column 5
INPUTS channel ON
E S 2 S 1 S 0
L L L L L L L L H L L L L H H H H X L L H H L L H H X L H L H L H L H X Y −Z 0 Y −Z 1 Y −Z 2 Y −Z 3 Y −Z 4 Y −Z 5 Y −Z 6 Y −Z 7 none

Notes 1. H = HIGH voltage level L = LOW voltage level X = don’t care

Fig.4 Functional diagram.

PDF page 4 diagram

Fig.5 Schematic diagram (one switch).

Page 5

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134) Voltages are referenced to VEE = GND (ground = 0 V)

SYMBOL PARAMETER MIN. MAX. UNIT CONDITIONS
V CC DC supply voltage −0.5 +11.0 V
±I IK DC digital input diode current 20 mA for V < −0.5 V or V > V + 0.5 V I I CC
±I SK DC switch diode current 20 mA for V < −0.5 V or V > V + 0.5 V S S CC
±I S DC switch current 25 mA for −0.5 V < V < V + 0.5 V S CC
±I EE DC V current EE 20 mA
±I ; ±I CC GND DC V or GND current CC 50 mA
T stg storage temperature range −65 +150 °C
P tot power dissipation per package plastic DIL 750 mW for temperature range: −40 to +125 °C 74HC/HCT above +70 °C: derate linearly with 12 mW/K
plastic mini-pack (SO) 500 mW above +70 °C: derate linearly with 8 mW/K
P S power dissipation per switch 100 mW

Note to ratings 1. To avoid drawing VCC current out of terminal Z, when switch current flows in terminals Yn, the voltage drop across the bidirectional switch must not exceed 0.4 V. If the switch current flows into terminal Z, no VCC current will flow out of terminals Yn. In this case there is no limit for the voltage drop across the switch, but the voltages at Yn and Z may not exceed VCC or VEE.

RECOMMENDED OPERATING CONDITIONS

SYMBOL PARAMETER 74HC 74HCT UNIT CONDITIONS
min. typ. max. min. typ. max.
V CC DC supply voltage V − GND CC 2.0 5.0 10.0 4.5 5.0 5.5 V see Figs 6 and 7
V CC DC supply voltage V − V CC EE 2.0 5.0 10.0 2.0 5.0 10.0 V see Figs 6 and 7
V I DC input voltage range GND V CC GND V CC V
V S DC switch voltage range V EE V CC V EE V CC V
T amb operating ambient temperature range −40 +85 −40 +85 °C see DC and AC CHARACTERISTICS
T amb operating ambient temperature range −40 +125 −40 +125 °C
t, t r f input rise and fall times 6.0 1000 500 400 250 6.0 500 ns V = 2.0 V CC V = 4.5 V CC V = 6.0 V CC V = 10.0 V CC

Page 6

PDF page 6 diagram

Fig.6 Guaranteed operating area as a function of the supply voltages for 74HC4051.

DC CHARACTERISTICS FOR 74HC/HCT

For 74HC: VCC − GND or VCC − VEE = 2.0, 4.5, 6.0 and 9.0 V

PDF page 6 diagram

Fig.7 Guaranteed operating area as a function of the supply voltages for 74HCT4051.

For 74HCT: VCC − GND = 4.5 and 5.5 V; VCC − VEE = 2.0, 4.5, 6.0 and 9.0 V

SYMBOL PARAMETER T (°C) amb UNIT TEST CONDITIONS
74HC/HCT V CC (V) V EE (V) I S (µA) V is V I
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
R ON ON resistance (peak) − 100 90 70 − 180 160 130 − 225 200 165 − 270 240 195 Ω Ω Ω Ω 2.0 4.5 6.0 4.5 0 0 0 −4.5 100 1000 1000 1000 V CC to V EE V IH or V IL
R ON ON resistance (rail) 150 80 70 60 − 140 120 105 − 175 150 130 − 210 180 160 Ω Ω Ω Ω 2.0 4.5 6.0 4.5 0 0 0 −4.5 100 1000 1000 1000 V EE V IH or V IL
R ON ON resistance (rail) 150 90 80 65 − 160 140 120 − 200 175 150 − 240 210 180 Ω Ω Ω Ω 2.0 4.5 6.0 4.5 0 0 0 −4.5 100 1000 1000 1000 V CC V IH or V IL
∆R ON maximum ∆ON resistance between any two channels − 9 8 6 Ω Ω Ω Ω 2.0 4.5 6.0 4.5 0 0 0 −4.5 V CC to V EE V IH or V IL

Notes to DC characteristics 1. At supply voltages (VCC − VEE) approaching 2.0 V the analog switch ON-resistance becomes extremely non-linear. Therefore it is recommended that these devices be used to transmit digital signals only, when using these supply voltages. 2. For test circuit measuring RON see Fig.8.

Page 7

DC CHARACTERISTICS FOR 74HC

Voltages are referenced to GND (ground = 0 V)

SYMBOL PARAMETER T (°C) amb UNIT TEST CONDITIONS
74HC V CC (V) V EE (V) V i OTHER
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
V IH HIGH level input voltage 1.5 3.15 4.2 6.3 1.2 2.4 3.2 4.7 1.5 3.15 4.2 6.3 1.5 3.15 4.2 6.3 V 2.0 4.5 6.0 9.0
V IL LOW level input voltage 0.8 2.1 2.8 4.3 0.5 1.35 1.8 2.7 0.5 1.35 1.8 2.7 0.5 1.35 1.8 2.7 V 2.0 4.5 6.0 9.0
± I I input leakage current 0.1 0.2 1.0 2.0 1.0 2.0 µA 6.0 10.0 0 0 V CC or GND
± I S analog switch OFF-state current per channel 0.1 1.0 1.0 µA 10.0 0 V IH or V IL |V | = S V −V CC EE Fig.10
± I S analog switch OFF-state current all channels 0.4 4.0 4.0 µA 10.0 0 V IH or V IL |V | = S V − V CC EE Fig.10
± I S analog switch ON-state current 0.4 4.0 4.0 µA 10.0 0 V IH or V IL |V | = S V −V CC EE Fig.11
I CC quiescent supply current 8.0 16.0 80.0 160.0 160.0 320.0 µA 6.0 10.0 0 0 V CC or GND V =V is EE or V ; CC V = V os CC or V EE

Page 8

AC CHARACTERISTICS FOR 74HC

GND = 0 V; tr = tf = 6 ns; CL = 50 pF

SYMBOL PARAMETER T (°C) amb UNIT TEST CONDITIONS
74HC V CC (V) V EE (V) OTHER
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t / t PHL PLH propagation delay V to V is os 14 5 4 4 60 12 10 8 75 15 13 10 90 18 15 12 ns 2.0 4.5 6.0 4.5 0 0 0 −4.5 R = ∞; C = 50 pF L L (see Fig.17)
t / t PZH PZL turn “ON” time E to V os 72 29 21 18 345 69 59 51 430 86 73 64 520 104 88 77 ns 2.0 4.5 6.0 4.5 0 0 0 −4.5 R = 1 kΩ; L C = 50 pF L (see Fig.18, 19 and 20)
t / t PZH PZL turn “ON” time S to V n os 66 28 19 16 345 69 59 51 430 86 73 64 520 104 88 77 ns 2.0 4.5 6.0 4.5 0 0 0 −4.5 R = 1 kΩ; L C = 50 pF L (see Fig.18, 19 and 20)
t / t PHZ PLZ turn “OFF” time E to V os 58 31 17 18 290 58 49 42 365 73 62 53 435 87 74 72 ns 2.0 4.5 6.0 4.5 0 0 0 −4.5 R = 1 kΩ; L C = 50 pF L (see Fig.18, 19 and 20)
t / t PHZ PLZ turn “OFF” time S to V n os 61 25 18 18 290 58 49 42 365 73 62 53 435 87 74 72 ns 2.0 4.5 6.0 4.5 0 0 0 −4.5 R = 1 kΩ; L C = 50 pF L (see Fig.18, 19 and 20)

Page 9

DC CHARACTERISTICS FOR 74HCT

Voltages are referenced to GND (ground = 0)

SYMBOL PARAMETER T (°C) amb UNIT TEST CONDITIONS
74HCT V CC (V) V EE (V) V i OTHER
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
V IH HIGH level input voltage 2.0 1.6 2.0 2.0 V 4.5 to 5.5
V IL LOW level input voltage 1.2 0.8 0.8 0.8 V 4.5 to 5.5
± I I input leakage current 0.1 1.0 1.0 µA 5.5 0 V CC or GND
± I S analog switch OFF-state current per channel 0.1 1.0 1.0 µA 10.0 0 V IH or V IL |V | = S V − V CC EE (see Fig.10)
± I S analog switch OFF-state current all channels 0.4 4.0 4.0 µA 10.0 0 V IH or V IL |V | = S V −V CC EE (see Fig.10)
± I S analog switch ON-state current 0.4 4.0 4.0 µA 10.0 0 V IH or V IL |V | = S V −V CC EE (see Fig.11)
I CC quiescent supply current 8.0 16.0 80.0 160.0 160.0 320.0 µA 5.5 5.0 0 −5.0 V CC or GND V =V or is EE V ; CC V = V os CC or V EE
∆I CC additional quiescent supply current per input pin for unit load coefficient is 1 (note 1) 100 360 450 490 µA 4.5 to 5.5 0 V CC −2.1 V other inputs at V or CC GND

Note to HCT types 1. The value of additional quiescent supply current (∆ ICC) for a unit load of 1 is given here. To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.

INPUT UNIT LOAD COEFFICIENT
S n E 0.50 0.50

Page 10

AC CHARACTERISTICS FOR 74HCT

GND = 0 V; tr = tf = 6 ns; CL = 50 pF

SYMBOL PARAMETER T (°C) amb UNIT TEST CONDITIONS
74HCT V CC (V) V EE (V) OTHER
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t / t PHL PLH propagation delay V to V is os 5 4 12 8 15 10 18 12 ns 4.5 4.5 0 −4.5 R = ∞; C = 50 pF L L (see Fig.17)
t / t PZH PZL turn “ON” time E to V os 26 16 55 39 69 49 83 59 ns 4.5 4.5 0 −4.5 R = 1 kΩ; C = 50 pF L L (see Fig.18, 19 and 20)
t / t PZH PZL turn “ON” time S to V n os 28 16 55 39 69 49 83 59 ns 4.5 4.5 0 −4.5 R = 1 kΩ; C = 50 pF L L (see Fig.18, 19 and 20)
t / t PHZ PLZ turn “OFF” time E to V os 19 16 45 32 56 40 68 48 ns 4.5 4.5 0 −4.5 R = 1 kΩ; C = 50 pF L L (see Fig.18, 19 and 20)
t / t PHZ PLZ turn “OFF” time S to V n os 23 16 45 32 56 40 68 48 ns 4.5 4.5 0 −4.5 R = 1 kΩ; C = 50 pF L L (see Fig.18, 19 and 20)
PDF page 10 diagram
PDF page 10 diagram

Fig.8 Test circuit for measuring RON.

Fig.9 Typical RON as a function of input voltage Vis for Vis = 0 to VCC − VEE.

Page 11

PDF page 11 diagram

Page 12

ADDITIONAL AC CHARACTERISTICS FOR 74HC/HCT

Recommended conditions and typical values

GND = 0 V; Tamb = 25 °C

SYMBOL PARAMETER typ. UNIT V CC (V) V EE (V) V is(p−p) (V) CONDITIONS
sine-wave distortion f = 1 kHz 0.04 0.02 % % 2.25 4.5 −2.25 −4.5 4.0 8.0 R = 10 kΩ; C = 50 pF L L (see Fig.14)
sine-wave distortion f = 10 kHz 0.12 0.06 % % 2.25 4.5 −2.25 −4.5 4.0 8.0 R = 10 kΩ; C = 50 pF L L (see Fig.14)
switch “OFF” signal feed-through −50 −50 dB dB 2.25 4.5 −2.25 −4.5 note 1 R = 600 Ω; C = 50 pF L L (see Figs 12 and 15)
V (p−p) crosstalk voltage between control and any switch (peak-to-peak value) 110 220 mV mV 4.5 4.5 0 −4.5 R = 600 Ω; C = 50 pF; L L f = 1 MHz (E or S , n square-wave between V and GND, CC t = t = 6 ns) r f (see Fig.16)
f max minimum frequency response (−3dB) 170 180 MHz MHz 2.25 4.5 −2.25 −4.5 note 2 R = 50 Ω; C = 10 pF L L (see Fig.13 and 14)
C S maximum switch capacitance independent (Y) common (Z) 5 25 pF pF

Notes to AC characteristics 1. Adjust input voltage Vis to 0 dBm level (0 dBm = 1 mW into 600 Ω). 2. Adjust input voltage Vis to 0 dBm level at Vos for 1 MHz (0 dBm = 1 mW into 50 Ω).

General note Vis is the input voltage at a Yn or Z terminal, whichever is assigned as an input. Vos is the output voltage at a Yn or Z terminal, whichever is assigned as an output.

PDF page 12 diagram

Test conditions: VCC = 4.5 V; GND = 0 V; VEE = −4.5 V; RL = 50 Ω; Rsource = 1 kΩ

Fig.12 Typical switch “OFF” signal feed-through as a function of frequency.

Page 13

PDF page 13 diagram

Page 14

PDF page 14 diagram

Page 15

TEST CIRCUIT AND WAVEFORMS

PDF page 15 diagram

Conditions

Column 1 Column 2 Column 3
TEST SWITCH V is
t PZH t PZL t PHZ t PLZ others V EE V CC V EE V CC open V CC V EE V CC V EE pulse
Column 1 Column 2 Column 3 Column 4 Column 5
FAMILY AMPLITUDE V M t; t r f
f ; max PULSE WIDTH OTHER
74HC 74HCT V CC 3.0 V 50% 1.3 V < 2 ns < 2 ns 6 ns 6 ns

CL = load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values). RT = termination resistance should be equal to the output impedance ZO of the pulse generator. tr = tf = 6 ns; when measuring fmax, there is no constraint to tr, tf with 50% duty factor.

Fig.19 Test circuit for measuring AC performance.

PDF page 15 diagram

Conditions

Column 1 Column 2 Column 3
TEST SWITCH V is
t PZH t PZL t PHZ t PLZ others V EE V CC V EE V CC open V CC V EE V CC V EE pulse
Column 1 Column 2 Column 3 Column 4 Column 5
FAMILY AMPLITUDE V M t; t r f
f ; max PULSE WIDTH OTHER
74HC 74HCT V CC 3.0 V 50% 1.3 V < 2 ns < 2 ns 6 ns 6 ns

CL = load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values). RT = termination resistance should be equal to the output impedance ZO of the pulse generator. tr = tf = 6 ns; when measuring fmax, there is no constraint to tr, tf with 50% duty factor.

Fig.20 Input pulse definitions.

Page 16

PDF page 16 diagram