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M74HC4351
ANALOG MULTIPLEXER/DEMULTIPLEXER WITH ADDRESS LATCH : SINGLE 8 CHANNEL
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LOGIC LEVEL TRANSLATION TO ENABLE 5V LOGIC SIGNAL TO COMMUNICATE WITH 5V ANALOG SIGNAL LOW POWER DISSIPATION: ICC = 4A(MAX.) at TA = 25 C LOW "ON" RESISTANCE: 70 TYP. (VCC - VEE = 4.5V) 50 TYP. (VCC - VEE = 9V) WIDE ANALOG INPUT VOLTAGE RANGE 6v LOW CROSSTALK BETWEEN SWITCHES FAST SWITCHING SINE WAVE DISTORTION: 0.02% (TYP.) at VCC - VEE = 9V HIGH NOISE IMMUNITY: VNIH = V NIL = 28 % VCC (MIN.) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 4351
DIP
SOP
TSSOP
ORDER CODES
PACKAGE DIP SOP TSSOP TUBE M74HC4351B1R M74HC4351M1R T&R M74HC4351RM13TR M74HC4351TTR
DESCRIPTION The M74HC4351 is an high speed CMOS ANALOG MULTIPLEXER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology. A built-in level shifting is included to allow an input range up to 6V (peak) for an analog signal with digital control signal of 0 to 6V.
VEE supply pin is provided for analog input signals. It has two enable inputs to enable all the switches when high (EN2) or low (EN1). For operation as a digital multiplexer/demultiplexer , VEE is connected to GND. The M74HC4351 is a single 8 channel multiplexer/ demultiplexer having three binary control inputs A, B and C to select 1 of 8 to be turned on, and connected to the output.
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
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M74HC4351
CONTROL INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 4 3, 14 7 8 9 11 15, 13, 12 17, 18, 19, 16, 1, 6, 2, 5 10 20 SYMBOL COM NC EN1 EN2 VEE LE A, B, C 0 to 7 GND VCC NAME AND FUNCTION Common Not Connected Enable Input (Active LOW) Enable Input (Active HIGH) Negative Supply Voltage Latch Enable Input (Active LOW) Select Inputs Independent Inputs/Outputs Ground (0V) Positive Supply Voltage
TRUTH TABLE
CONTROL INPUTS "ON" CHANNEL (LE = H)** EN1 L L L L L L L L H X EN2 H H H H H H H H X L C L L L L H H H H X X B L L H H L L H H X X A L H L H L H L H X X 0 1 2 3 4 5 6 7 NONE NONE
X : Don't Care ** : When latch Enable is low, the Channel Selection is latched and the Channel Address Latch does not change state.
ABSOLUTE MAXIMUM RATINGS
Symbol VCC VIN VI/O IIK IOK IOUT Supply Voltage DC Input Voltage DC Switch Input/Output Voltage Input Diode Current I/O Diode Current DC Output Current VCC - VEE Supply Voltage Range Parameter Value -0.5 to +7 -0.5 to +13 -0.5 to VCC + 0.5 VEE -0.5 to VCC + 0.5 20 20 25 50 500(*) -65 to +150 300 Unit V V V V mA mA mA mA mW C C
ICC or IGND DC VCC or Ground Current PD Power Dissipation Tstg TL Storage Temperature Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (*) 500mW at 65 C; derate to 300mW by 10mW/C from 65C to 85C
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M74HC4351
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VEE VI VI/O Top tr, tf Supply Voltage Supply Voltage Input Voltage Switch I/O Voltage Operating Temperature Input Rise and Fall Time VCC = 2.0V VCC = 4.5V VCC = 6.0V Parameter Value 2 to 12 2 to 12 2 to 12 0 to VCC 0 to VCC -55 to 125 0 to 1000 0 to 500 0 to 400 ns Unit V V V V V C
VCC - VEE Supply Voltage
DC SPECIFICATIONS
Test Condition Symbol Parameter VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 4.5 4.5 6.0 2.0 4.5 4.5 6.0 4.5 4.5 6.0 6.0 VEE (V) TA = 25C Min. 1.5 3.15 4.2 0.5 1.35 1.8 180 120 100 150 100 80 30 12 10 100 Typ. Max. Value -40 to 85C Min. 1.5 3.15 4.2 0.5 1.35 1.8 225 150 125 190 125 100 35 15 12 1000 1000 Max. -55 to 125C Unit Min. 1.5 3.15 4.2 0.5 1.35 1.8 Max. V
VIHC
High Level Control Input Voltage Low Level Control Input Voltage ON Resistance
VILC
V
RON
RON
Difference of ON Resistance between switches Input/Output Leakage Current (SWITCH OFF) Switch Input Leakage Current (SWITCH ON, OUTPUT OPEN) Control Input Current Quiescent Supply Current
IOFF
GND VI = VIHC or VILC -4.5 VI/O = VCC to VEE II/O < 2 mA -6.0 GND VI = VIHC or VILC GND VI/O = VCC or VEE -4.5 II/O < 2 mA -6.0 GND VI = VIHC or VILC -4.5 VI/O = VCC to VEE II/O < 2 mA -6.0 VOS = VCC or GND -6.0 VIS = VCC or GND VIN = VILC -6.0 VOS = VCC or GND VINH = VIHC
85 55 50 150 70 50 45 10 5 5
nA
IIZ
100
6.0
nA 1 80 160
IIN ICC
6.0 6.0 6.0
GND VIN = VCC or GND GND VIN = VCC or GND -6.0
0.1 4 8
1 40 80
A A
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M74HC4351
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns, GND = 0)
Test Condition Symbol Parameter VCC (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 2.0 4.5 6.0 2.0 4.5 6.0 VEE (V) GND GND GND -4.5 GND GND GND -4.5 GND GND GND -4.5 GND GND GND -4.5 GND GND GND -4.5 GND GND GND -4.5 GND GND GND -4.5 GND GND GND GND GND GND GND GND GND TA = 25C Min. Typ. 25 6 5 4 80 20 16 18 80 22 17 18 75 22 16 17 120 38 33 30 120 40 35 34 120 40 35 35 Max. 60 12 10 200 40 34 225 45 38 225 45 38 275 55 47 275 55 47 290 58 49 75 15 13 50 10 9 5 5 5 Value -40 to 85C -55 to 125C Unit Min. Max. 75 15 13 250 50 43 280 56 48 280 56 48 344 69 59 344 69 59 363 73 61 95 19 16 60 12 11 5 5 5 300 60 51 340 68 57 340 68 57 415 83 71 415 83 71 433 87 74 110 22 19 75 15 13 5 5 5 Min. Max.
I/O
Phase Difference Between Input and Output
ns
tPZL tPZH
Output Enable Time (E1, E2 - O)
RL = 1K
ns
tPZL tPZH
Output Enable Time (LE -I/O)
RL = 1K
ns
tPZL tPZH
Output Enable Time (A, B, C - I/O)
RL = 1K
ns
tPLZ tPHZ
Output Disable Time (E1, E2 - O)
RL = 1K
ns
tPLZ tPHZ
Output Disable Time (LE -I/O)
RL = 1K
ns
tPLZ tPHZ
Output Disable Time (A, B, C - I/O)
RL = 1K
ns
tW(H)
Minimum Pulse Width (LE) Minimum Set-Up Time Minimum Hold Time
ns
ts
ns
th
ns
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M74HC4351
CAPACITIVE CHARACTERISTICS
Test Condition Symbol Parameter VCC (V) VEE (V) TA = 25C Min. Typ. 5 5.0 5.0 5.0 5.0 -5.0 -5.0 -5.0 GND 36 7 0.95 23 Max. 10 70 15 2 Value -40 to 85C Min. Max. 10 70 15 2 -55 to 125C Unit Min. Max. 10 70 15 2 pF pF pF pF pF
CIN CIS COS CIOS CPD
Input Capacitance Common Terminal Capacitance Switch Terminal Capacitance Feed Through Capacitance Power Dissipation Capacitance (note 1)
1) CPD is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
ANALOG SWITCH CHARACTERISTICS (GND = 0V;TA = 25C)
Symbol Parameter VCC (V) Sine Wave Distortion (THD) fMAX Frequency Response (Switch ON) Feed through Attenuation (Switch OFF) Crosstalk Control to Switch Crosstalk (Between Any Switches) 2.25 4.5 4.5 2.25 4.5 6.0 2.25 4.5 6.0 2.25 4.5 6.0 VEE (V) -2.25 -4.5 -4.5 -2.25 -4.5 -6.0 -2.25 -4.5 -6.0 -2.25 -4.5 -6.0 VIN (Vp-p) 4 8 fIN = 1 KHz RL = 10 K, CL = 50 pF Adjust fIN voltage to obtain 0 dBm at VOS. Increase fIN Frequency until dB meter reads -3dB RL = 50, CL = 10 pF(*) VIN is centered at (VCC - VEE) /2. Adjust input for 0 dBm RL = 600, CL = 50 pF, fIN = 1MHz sine wave tr = tf =6ns RL = 600, CL = 50 pF fIN = 1MHz square wave Adjust VIN to Obtain 0 dBm at input RL = 600, CL = 50 pF, fIN = 1MHz sine wave Test Condition Value Unit Typ. 0.025 0.020 200 -50 -50 -50 110 225 310 -50 -50 -50 %
MHz
dB
mV
dB
(*) : Input COMMON Terminal, and measured at SWITCH Terminal. NOTE : These Characteristics are determined by design of device.
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M74HC4351
SWITCHING CARACTERISTICS TEST CIRCUIT
CROSSTALK (control to output)
BANDWIDTH AND FEEDTHROUGH ATTENUATION
CROSSTALK BETWEEN ANY TWO SWITCHES
CI-O CI/O
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M74HC4351
WAVEFORM 1 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
WAVEFORM 2 : MINIMUM PULSE WIDTH, SETUP AND HOLD TIME (f=1MHz; 50% duty cycle)
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M74HC4351
CHANNEL RESISTANCE (RON) ICC (Opr.)
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M74HC4351
Plastic DIP-20 (0.25) MECHANICAL DATA
mm. DIM. MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.34 8.5 2.54 22.86 7.1 3.93 0.130 0.053 0.254 1.39 0.45 0.25 25.4 0.335 0.100 0.900 0.280 0.155 1.65 TYP MAX. MIN. 0.010 0.055 0.018 0.010 1.000 0.065 TYP. MAX. inch
P001J
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M74HC4351
SO-20 MECHANICAL DATA
mm. DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 7.40 0.50 12.60 10.00 1.27 11.43 7.60 1.27 0.75 8 (max.) 0.291 0.020 13.00 10.65 0.35 0.23 0.5 45 (typ.) 0.496 0.393 0.050 0.450 0.300 0.050 0.029 0.512 0.419 0.1 TYP MAX. 2.65 0.2 2.45 0.49 0.32 0.014 0.009 0.020 0.004 MIN. TYP. MAX. 0.104 0.008 0.096 0.019 0.012 inch
PO13L
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M74HC4351
TSSOP20 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 6.4 6.2 4.3 6.5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 6.6 6.6 4.48 0.002 0.031 0.007 0.004 0.252 0.244 0.169 0.256 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0089 0.260 0.260 0.176 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0087225C
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M74HC4351
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom (c) http://www.st.com
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