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INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
* The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications * The IC06 74HC/HCT/HCU/HCMOS Logic Package Information * The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT4351 8-channel analog multiplexer/demultiplexer with latch
Product specification File under Integrated Circuits, IC06 December 1990
Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
FEATURES * Wide analog input voltage range: 5V * Low "ON" resistance: 80 (typ.) at VCC - VEE = 4.5 V 70 (typ.) at VCC - VEE = 6.0 V 60 (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 * Address latches provided * Output capability: non-standard * ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT4351 are high-speed Si-gate CMOS devices. They are specified in compliance with JEDEC standard no. 7A.
74HC/HCT4351
The 74HC/HCT4351 are 8-channel analog multiplexers/demultiplexers with three select inputs (S0 to S2), two enable inputs (E1 and E2), a latch enable input (LE), eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z). With E1 LOW and E2 is HIGH, one of the eight switches is selected (low impedance ON-state) by S0 to S2. The data at the select inputs may be latched by using the active LOW latch enable input (LE). When LE is HIGH the latch is transparent. When either of the two enable inputs, E1 (active LOW) and E2 (active HIGH), is inactive, all 8 analog switches are turned off. VCC and GND are the supply voltage pins for the digital control inputs (S0 to S2, LE, E1 and E2). 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 TYPICAL SYMBOL tPZH / tPZL tPHZ / tPLZ CI CPD CS PARAMETER turn "ON" time E1, E2 or Sn to Vos turn "OFF" time E1, E2 or Sn to Vos input capacitance power dissipation capacitance per switch max. switch capacitance independent (Y) common (Z) Notes 1. CPD is used to determine the dynamic power dissipation (PD in W): PD = CPD x VCC2 x fi + {(CL+ CS) x VCC2 x fo} where: fi = input frequency in MHz fo = output frequency in MHz CL = output load capacitance in pF CS = max. switch capacitance in pF {(CL+ CS) x VCC2 x fo} = sum of outputs VCC = supply voltage in V December 1990 2 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC - 1.5 V ORDERING INFORMATION See "74HC/HCT/HCU/HCMOS Logic Package Information". 5 25 5 25 pF pF notes 1 and 2 CONDITIONS HC CL = 15 pF; RL = 1 k; VCC = 5 V 27 21 3.5 25 HCT 35 23 3.5 25 ns ns pF pF UNIT
Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
PIN DESCRIPTION PIN NO. 4 3, 14 7 8 9 10 11 15, 13, 12 17, 18, 19, 16, 1, 6, 2, 5 20 SYMBOL Z n.c. E1 E2 VEE GND LE S0 to S2 Y0 to Y7 VCC NAME AND FUNCTION common not connected enable input (active LOW) enable input (active HIGH) negative supply voltage ground (0 V) latch enable input (active LOW) select inputs independent inputs/outputs positive supply voltage
74HC/HCT4351
Fig.1 Pin configuration.
Fig.2
Fig.3 IEC logic symbol.
December 1990
3
Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
FUNCTION TABLE INPUTS E1 H X L L L L L L L L L X Notes 1. Last selected channel "ON". 2. Selected channels latched. 3. H = HIGH voltage level L = LOW voltage level X = don't care = HIGH-to-LOW LE transition APPLICATIONS * Analog multiplexing and demultiplexing * Digital multiplexing and demultiplexing * Signal gating X L H H H H H H H H H X E2 LE X X H H H H H H H H L S2 X X L L L L H H H H X X S1 X X L L H H L L H H X X S0 X X L H L H L H L H X X CHANNEL ON none none Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
(1) (2)
74HC/HCT4351
Fig.4 Functional diagram.
Fig.5 Schematic diagram (one switch).
December 1990
4
Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Voltages are referenced to VEE = GND (ground = 0 V) SYMBOL VCC IIK ISK IS IEE ICC; IGND Tstg Ptot PARAMETER DC supply voltage DC digital input diode current DC switch diode current DC switch current DC VEE current DC VCC or GND current storage temperature range power dissipation per package plastic DIL plastic mini-pack (SO) PS power dissipation per switch 750 500 100 mW mW mW -65 MIN. MAX. -0.5 +11.0 20 20 25 20 50 +150 UNIT V mA mA mA mA mA C CONDITIONS
74HC/HCT4351
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 above +70 C: derate linearly with 12 mW/K above +70 C: derate linearly with 8 mW/K
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 74HC
SYMBOL PARAMETER
74HCT
UNIT CONDITIONS
min. 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 2.0 2.0 GND VEE
typ. max. min. typ. max. 5.0 5.0 10.0 10.0 VCC VCC +85 1000 500 400 250 4.5 2.0 GND VEE -40 5.0 5.0 5.5 10.0 VCC VCC +85 V V V V C see DC and AC CHARACTERISTICS VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VCC = 10.0 V see Figs 6 and 7 see Figs 6 and 7
operating ambient temperature range -40 operating ambient temperature range -40 input rise and fall times 6.0
+125 -40 6.0
+125 C 500 ns
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
MBA334
74HC/HCT4351
10 handbook, halfpage VCC - GND (V) 8 operating area 6
4
2
0
0
2
4
6
8 10 VCC - V EE (V)
Fig.6
Guaranteed operating area as a function of the supply voltages for 74HC4351.
Fig.7
Guaranteed operating area as a function of the supply voltages for 74HCT4351.
DC CHARACTERISTICS FOR 74HC/HCT For 74HC: VCC - GND or VCC - VEE = 2.0, 4.5, 6.0 and 9.0 V For 74HCT: VCC - GND = 4.5 and 5.5 V; VCC - VEE = 2.0, 4.5, 6.0 and 9.0 V Tamb (C) 74HC/HCT SYMBOL PARAMETER +25 -40 to +85 -40 to +125 - 270 240 195 - 210 180 160 - 240 210 180 UNIT VCC (V) VEE (V) IS (A) Vis VI TEST CONDITIONS
min. typ. max. min. max. min. max. RON ON resistance (rail) - 100 90 70 150 80 70 60 150 90 80 65 - 9 8 6 - 180 160 130 - 140 120 105 - 160 140 120 - 225 200 165 - 175 150 130 - 200 175 150 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5
0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 100 1000 1000 1000 100 1000 1000 1000 100 1000 1000 1000
VCC to VEE VEE
VIN or VIL VIH or VIL VIH or VIL VIH or VIL
RON
ON resistance (rail)
RON
ON resistance (rail)
VCC
RON
maximum ON resistance between any two channels
VCC to VEE
Notes to DC characteristics 1. At supply voltages (VCC - VEE) approaching 2.0 V, the analog switch ON-resistance becomes extremely non-linear. There 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. December 1990 6
Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
DC CHARACTERISTICS FOR 74HC Voltages are referenced to GND (ground = 0 V) Tamb (C) 74HC SYMBOL PARAMETER +25 -40 to +85 -40 to +125 UNIT V CC (V) V 2.0 4.5 6.0 9.0 2.0 4.5 6.0 9.0
74HC/HCT4351
TEST CONDITIONS VEE (V)
VI
OTHER
min. typ. max. min. max. min. max. VIH
HIGH level input voltage
1.5 3.15 4.2 6.3
1.2 2.4 3.2 4.7 0.8 2.1 2.8 4.3 0.5 1.35 1.8 2.7 0.1 0.2 0.1
1.5 3.15 4.2 6.3 0.5 1.35 1.8 2.7 1.0 2.0 1.0
1.5 3.15 4.2 6.3 0.5 1.35 1.8 2.7 1.0 2.0 1.0
VIL
LOW level input voltage
V
II
input leakage current analog switch OFF-state current per channel analog switch OFF-state current all channels analog switch ON-state current quiescent supply current
A
6.0 0 10.0 0 10.0 0
VCC or GND
IS
A
VIH or VIL VIH or VIL VIH or VIL
VS = VCC - VEE (see Fig.10) VS = VCC - VEE (see Fig.10) VS = VCC - VEE (see Fig.11)
IS
0.4
4.0
4.0
A
10.0 0
IS
0.4
4.0
4.0
A
10.0 0
ICC
8.0 16.0
80.0 160.0
160.0 A 320.0
6.0 0 10.0 0
VCC Vis = VEE or or VCC; GND Vos = VCC or VEE
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
AC CHARACTERISTICS FOR 74HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (C) 74HC SYMBOL PARAMETER +25 min. tPHL/ tPLH propagation delay Vis to Vos typ. 14 5 4 4 85 31 25 28 85 31 25 25 91 33 26 27 88 32 26 25 69 25 20 20 72 26 21 19 83 30 24 26 80 29 23 24 -40 to +85 -40 to +125 max. 90 18 15 12 450 90 77 83 450 90 77 83 450 90 77 83 450 90 77 75 375 75 64 60 375 75 64 60 415 83 71 68 415 83 71 72 ns
74HC/HCT4351
TEST CONDITIONS UNIT V CC (V) 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 VEE (V) 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5
OTHER RL = ; CL = 50 pF (see Fig.17) RL = 1 k; CL = 50 pF (see Fig.18) RL = 1 k; CL = 50 pF (see Fig.18) RL = 1 k; CL = 50 pF (see Fig.18) RL = 1 k; CL = 50 pF (see Fig.18) RL = 1 k; CL = 50 pF (see Fig.18) RL = 1 k; CL = 50 pF (see Fig.18) RL = 1 k; CL = 50 pF (see Fig.18) RL = 1 k; CL = 50 pF (see Fig.18)
max. min. max. min. 60 12 10 8 300 60 51 55 300 60 51 55 300 60 51 55 300 60 51 50 250 50 43 40 250 50 43 40 275 55 47 45 275 55 47 48 75 15 13 10 375 75 64 69 375 75 64 69 375 75 64 69 375 75 64 63 315 63 54 50 315 63 54 50 345 69 59 56 345 69 59 60
tPZH/ tPZL
turn "ON" time E1 to Vos
ns
tPZH/ tPZL
turn "ON" time E2 to Vos
ns
tPZH/ tPZL
turn "ON" time LE to Vos
ns
tPZH/ tPZL
turn "ON" time Sn to Vos
ns
tPHZ/ tPLZ
turn "OFF" time E1 to Vos
ns
tPHZ/ tPLZ
turn "OFF" time E2 to Vos
ns
tPHZ/ tPLZ
turn "OFF" time LE to Vos
ns
tPHZ/ tPLZ
turn "OFF" time Sn to Vos
ns
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
Tamb (C) 74HC SYMBOL PARAMETER +25 min. tsu set-up time Sn to LE 60 12 10 18 5 5 5 5 100 20 17 25 typ. 17 6 5 9 -8 -3 -2 -4 11 1 3 7 -40 to +85 -40 to +125 max. 90 18 15 27 5 5 5 5 150 30 26 38 ns
74HC/HCT4351
TEST CONDITIONS UNIT V CC (V) 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 2.0 4.5 6.0 4.5 VEE (V) 0 0 0 -4.5 0 0 0 -4.5 0 0 0 -4.5
OTHER
max. min. max. min. 75 15 13 23 5 5 5 5 125 25 21 31
RL = 1 k; CL = 50 pF (see Fig.19) RL = 1 k; CL = 50 pF (see Fig.19) RL = 1 k; CL = 50 pF (see Fig.19)
th
hold time Sn to LE
ns
tW
LE minimum pulse width HIGH
ns
December 1990
9
Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
DC CHARACTERISTICS FOR 74HCT Voltages are referenced to GND (ground = 0) Tamb (C) 74HCT SYMBOL PARAMETER +25 -40 to +85 max. -40 to +125 min. max. 2.0 V 4.5 to 5.5 4.5 to 5.5 5.5 UNIT V CC (V)
74HC/HCT4351
TEST CONDITIONS VEE (V)
VI
OTHER
min. typ. max. min. VIH
HIGH level input voltage LOW level input voltage input leakage current analog switch OFF-state current per channel analog switch OFF-state current all channels analog switch ON-state current
2.0
1.6
2.0
VIL
1.2
0.8
0.8
0.8
V
II
0.1
1.0
1.0
A
0
VCC or GND
IS
0.1
1.0
1.0
A
10.0 0
VIH or VIL VIH or VIL VIH or VIL
VS = VCC - VEE (see Fig.10) VS = VCC - VEE (see Fig.10) VS = VCC - VEE (see Fig.11) Vis = VEE or VCC; Vos = VCC or VEE other inputs at VCC or GND
IS
0.4
4.0
4.0
A
10.0 0
IS
0.4
4.0
4.0
A
10.0 0
ICC
quiescent supply current
8.0 16.0
80.0 160.0
160.0 320.0
A
5.5 5.0
0 VCC -5.0 or GND
ICC
additional quiescent supply current per input pin for unit load coefficient is 1 (note 1)
100
360
450
490
A
4.5 to 5.5
0
VCC -2.1 V
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 E1, E2 Sn LE UNIT LOAD COEFFICIENT 0.50 0.50 1.5
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (C) 74HCT SYMBOL PARAMETER +25 -40 to +85 -40 to +125
74HC/HCT4351
TEST CONDITIONS UNIT V CC (V) ns 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 VEE (V)
OTHER
min. typ. max. min. max. min. max. tPHL/ tPLH propagation delay Vis to Vos turn "ON" time E1 to Vos turn "ON" time E2 to Vos turn "ON" time LE to Vos turn "ON" time Sn to Vos turn "OFF" time E1 to Vos turn "OFF" time E2 to Vos turn "OFF" time LE to Vos turn "OFF" time Sn to Vos set-up time Sn to LE hold time Sn to LE LE minimum pulse width HIGH 12 14 5 5 25 25 6 4 40 31 35 26 42 37 39 30 27 20 32 26 33 30 33 29 6 7 -1 -2 13 13 12 8 75 60 70 50 75 60 75 60 55 40 60 50 60 55 65 55 15 10 94 75 88 63 94 75 94 75 69 50 75 63 75 69 81 69 15 18 5 5 31 31 18 12 113 90 105 75 113 90 113 90 83 60 90 75 90 83 98 83 18 21 5 5 38 38 0 RL = ; -4.5 CL = 50 pF (see Fig.17) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.18) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.19) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.19) 0 RL = 1 k; -4.5 CL = 50 pF (see Fig.19)
tPZH/ tPZL
ns
tPZH/ tPZL
ns
tPZH/ tPZL
ns
tPZH/ tPZL
ns
tPHZ/ tPLZ
ns
tPHZ/ tPLZ
ns
tPHZ/ tPLZ
ns
tPHZ/ tPLZ
ns
tsu
ns
th
ns
tW
ns
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
74HC/HCT4351
Fig.8 Test circuit for measuring RON.
Fig.9
Typical RON as a function of input voltage Vis for Vis = 0 to VCC - VEE.
Fig.10 Test circuit for measuring OFF-state current.
Fig.11 Test circuit for measuring ON-state current.
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
ADDITIONAL AC CHARACTERISTICS FOR 74HC/HCT Recommended conditions and typical values GND = 0 V; Tamb = 25 C SYMBOL PARAMETER sine-wave distortion f = 1 kHz sine-wave distortion f = 10 kHz switch "OFF" signal feed-through V(p-p) crosstalk voltage between control and any switch (peak-to-peak value) typ. 0.04 0.02 0.12 0.06 -50 -50 120 220 UNIT % % % % dB dB mV mV VCC (V) 2.25 4.5 2.25 4.5 2.25 4.5 4.5 4.5 VEE (V) -2.25 -4.5 -2.25 -4.5 -2.25 -4.5 0 -4.5 Vis(p-p) (V) 4.0 8.0 4.0 8.0 note 1
74HC/HCT4351
CONDITIONS RL = 10 k; CL = 50 pF (see Fig.14) RL = 10 k; CL = 50 pF (see Fig.14) RL = 600 ; CL = 50 pF (see Figs 12 and 15) RL = 600 ; CL = 50 pF; f = 1 MHz (E1, E2 or Sn, square-wave between VCC and GND, tr = tf = 6 ns) (see Fig.16)
fmax CS
minimum frequency response (-3dB) maximum switch capacitance independent (Y) common (Z)
160 170 5 25
MHz MHz pF pF
2.25 4.5
-2.25 -4.5
note 2
RL = 50 ; CL = 10 pF (see Figs 13 and 14)
Notes to AC characteristics 1. Adjust input voltage Vis to 0 dBm level (0 dBm = 1 mW into 600 ). 2. Adjust input voltage Vis to 0 dBm level at Vos for 1 MHz (0 dBm = 1 mW into 50 ). 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.
Test conditions: VCC = 4.5 V; GND = 0 V; VEE = -4.5 V; RL = 50 ; Rsource = 1 k.
Fig.12 Typical switch "OFF" signal feed-through as a function of frequency.
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
74HC/HCT4351
Test conditions: VCC = 4.5 V; GND = 0 V; VEE = -4.5 V; RL = 50 ; Rsource = 1 k.
Fig.13 Typical frequency response.
Fig.14 Test circuit for measuring sine-wave distortion and minimum frequency response.
Fig.15 Test circuit for measuring switch "OFF" signal feed-through.
The crosstalk is defined as follows (oscilloscope output):
Fig.16 Test circuit for measuring crosstalk between control and any switch.
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
AC WAVEFORMS
74HC/HCT4351
HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.17 Waveforms showing the input (Vis) to output (Vos) propagation delays.
Fig.18 Waveforms showing the turn-ON and turn-OFF times.
HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.19 Waveforms showing the set-up and hold times from Sn inputs to LE input, and minimum pulse width of LE.
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
TEST CIRCUIT AND WAVEFORMS
74HC/HCT4351
Conditions TEST tPZH tPZL tPHZ tPLZ others CL RT tr = = = SWITCH VEE VCC VEE VCC open VEE VCC VEE pulse 74HC 74HCT VCC 3.0 V 50% 1.3 V Vis VCC FAMILY AMPLITUDE VM tr; tf fmax; PULSE WIDTH < 2 ns < 2 ns OTHER 6 ns 6 ns
load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values). termination resistance should be equal to the output impedance ZO of the pulse generator. tf = 6 ns; when measuring fmax, there is no constraint on tr, tf with 50% duty factor. Fig.20 Test circuit for measuring AC performance.
Conditions TEST tPZH tPZL tPHZ tPLZ others SWITCH VEE VCC VEE VCC open VEE VCC VEE pulse 74HC 74HCT VCC 3.0 V 50% 1.3 V Vis VCC FAMILY AMPLITUDE VM tr; tf fmax; PULSE WIDTH < 2 ns < 2 ns OTHER 6 ns 6 ns
CL RT tr
= = =
load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values). termination resistance should be equal to the output impedance ZO of the pulse generator. tf = 6 ns; when measuring fmax, there is no constraint on tr, tf with 50% duty factor. Fig.21 Input pulse definitions.
December 1990
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Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer with latch
PACKAGE OUTLINES See "74HC/HCT/HCU/HCMOS Logic Package Outlines".
74HC/HCT4351
December 1990
17

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