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.
Product specification
74HC/HCT4051
APPLICATIONS
• Analog multiplexing and demultiplexing • Digital multiplexing and demultiplexing • Signal gating
FUNCTION TABLE
SYMBOL
PARAMETER
tPZH/ tPZL
tPHZ/ tPLZ
CI CPD CS
turn “ON” time E to Vos Sn to Vos
turn “OFF” time E to Vos Sn to Vos
input capacitance power dissipation capacitance per switch max. switch capacitance
DC switch current
DC VEE current DC VCC or GND current storage temperature range −65
power dissipation per package
+11.0 V 20 mA 20 mA 25 mA 20 mA 50 mA +150 °C
Product specification
74HC/HCT4051
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
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Philips Semiconductors
8-channel analog multiplexer/demultiplexer
750 mW above +70 °C: derate linearly with 12 mW/K 500 mW above +70 °C: derate linearly with 8 mW/K
PS
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.
for VI < −0.5 V or VI > VCC + 0.5 V for VS < −0.5 V or VS > VCC + 0.5 V for −0.5 V < VS < VCC + 0.5 V
for temperature range: −40 to +125 °C 74HC/HCT
plastic DIL plastic mini-pack (SO)
NAME AND FUNCTION common input/output enable input (active LOW) negative supply voltage ground (0 V) select inputs independent inputs/outputs positive supply voltage
Y4 − Z Y5 − Z Y6 − Z Y7 − Z
none
Fig.4 Functional diagram.
December 1990
Fig.5 Schematic diagram (one switch). 4
Philips Semiconductors
8-channel analog multiplexer/demultiplexer
Product specification
74HC/HCT4051
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Voltages are referenced to VEE = GND (ground = 0 V)
74HC/HCT4051 8-channel analog multiplexer/demultiplexer
Product specification File under Integrated Circuits, IC06
December 1990
Philips Semiconductors
8-channel analog multiplexer/demultiplexer
INPUTS
E
S2
S1
S0
L
L
L
L
L
L
L
H
L
L
H
L
L
L
H
H
L
H
L
L
L
H
L
H
L
H
H
L
L
H
H
H
H
X
X
X
Notes
1. H = HIGH voltage level L = LOW voltage level X = don’t care
channel ON
Y0 − Z Y1 − Z Y2 − Z Y3 − Z
2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC − 1.5 V
December 1990
2
Philips Semiconductors
8-channel analog multiplexer/demultiplexer
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.
SYMBOL
PARAMETER
MIN. MAX. UNIT
CONDITIONS
VCC ±IIK ±ISK ±IS ±IEE ±ICC; ±IGND Tstg Ptot
DC supply voltage
−0.5
DC digital input diode current
DC switch diode current
22
22
20
24
UNIT
ns ns
notes 1 and 2
18
16
ns
19
20
ns
3.5
3.5
pF
25
25
pF
5
5
pF
25
25
pF
Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi + ∑ { (CL + CS ) × VCC2 × fo } where:
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC VCC VI VS Tamb
Tamb
tr, tf
DC supply voltage VCC − GND DC supply voltage VCC − VEE DC input voltage range DC switch voltage range operating ambient temperature range operating ambient temperature range input rise and fall times
Product specification
74HC/HCT4051
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