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| M74HC4851 SINGLE 8 CHANNEL ANALOG MUX/DEMUX WITH INJECTION CURRENT PROTECTION s s s s s s s s s LOW POWER DISSIPATION: ICC = 2A(MAX.) at TA=25C INJECTION CURRENT PROTECTION: VOUT<1mV at VCC=5V IIN1mA R S3.9K "ON" RESISTANCE at TA=25C: 215 TYP. (VCC = 3.0V) 150 TYP. (VCC = 4.5V) 160 TYP. (VCC = 6V) FAST SWITCHING: tpd = 8.6ns (TYP.) at TA = 25 C, VCC = 4.5V WIDE OPERATING SUPPLY VOLTAGE RANGE: VCC = 2V TO 6V HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.) PIN AND FUNCTION COMPATIBLE WITH SERIES 4051, 4851 LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (JESD22-A114B); MM > 200V SOP TSSOP ORDER CODES PACKAGE SOP TSSOP TUBE M74HC4851M1R T&R M74HC4851RM13TR M74HC4851TTR DESCRIPTION The M74HC4851 is a single eight-channel analog MULTIPLEXER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology. It is pin to pin compatible with the equivalent to standard HC4051 and MC14051, but feature injection current effect control. This make this device expecially suited for usage in automotive applications where voltages in excess of normal PIN CONNECTION AND IEC LOGIC SYMBOLS logic voltage are common. The injection current effect control allows signals at disabled input channels to exceed the supply voltage range or go down ground without affecting the signal of the enabled analog channel. This eliminated the need for external diode-resistor networks typically esed to keep the analog channel signals within the supply voltage range. This analog switch is bidirectional and digitally controlled. It have three binary control inputs A, B, abd C to select 1 of 8 to be turned on, and connected to the output, and a INH input to disable all channel. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. September 2002 1/11 M74HC4851 CONTROL INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 3 6 7 11, 10, 9 13, 14, 15, 12, 1, 5, 2, 4 8 16 SYMBOL COM OUT/IN INH NC A, B, C 0 to 7 GND VCC NAME AND FUNCTION Common Output/Input INHIBIT Input Not Connected Select Inputs Independent Input/Outputs Ground (0V) Positive Supply Voltage TRUTH TABLE I/O EQUIVALENT CIRCUIT INPUT STATE ON CHANNEL INH L L L L L L L L H X: Don't care C L L L L H H H H X B L L H H L L H H X A L H L H L H L H X 0 1 2 3 4 5 6 7 NONE FUNCTIONAL DIAGRAM 2/11 M74HC4851 ABSOLUTE MAXIMUM RATINGS Symbol VCC VIN VI/O ICK IIOK ICC PD Tstg TL Supply Voltage Control Input Voltage Switch I/O Voltage Control Input Diode Current I/O Diode Current DC VCC or Ground Current Power Dissipation Storage Temperature Lead Temperature (10 sec) SOP TSSOP Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 25 25 50 500(*) 450(*) -65 to +150 300 Unit V V V mA mA mA mW mW C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (*) Power difssipation at 65 C. Derating from 65C to 125C: SO Package -7mW/C; TSSOP Package -6.1mW/C RECOMMENDED OPERATING CONDITIONS Symbol VCC VI/O VI/O VIN Top tr, tf Supply Voltage Input Output Voltage Static or Dynamic Voltage Across Switch (note1) Control Input Voltage Operating Temperature Input Rise and Fall Time (note2) (Channel Select or Enable Inputs only) VCC = 2.0V VCC = 3.0.V VCC = 3.3V VCC = 4.5V VCC = 6.0V Parameter Value 2 to 6 0 to VCC 0 to 1.2 0 to VCC -55 to 125 0 to 1000 0 to 800 0 to 700 0 to 500 0 to 400 ns Unit V V V V C 1) For voltage drops across switch greater than 1.2V (switch on), excessive Vcc current may drawn; i.e., the current out of the switch may containbothVCCandswitchinput components.Thereliabilityofthedevicewill beunaffectedunlesstheMaximumRatings areexceeded. 2) VIN from 30% to 70% VCC of channel Selected or Enable Inputs 3/11 M74HC4851 DC SPECIFICATIONS Test Condition Symbol Parameter VCC (V) 2.0 3.0 3.0 4.5 6.0 2.0 3.0 3.3 4.5 6.0 2.0 3.0 3.3 4.5 6.0 RON Difference of ON Resistance between switches 2.0 3.0 3.3 4.5 6.0 6.0 IS=2mA IS2mA IS=2mA IS2mA VIN = VIHC or VILC VIS = VCC/2 VIN = VIHC or VILC VIS = VCC to GND TA = 25C Min. 1.5 2.1 2.3 3.15 4.2 0.5 0.9 1.0 1.35 1.8 500 215 210 160 150 4 2 2 2 3 650 280 270 210 195 10 8 8 8 9 0.1 Value up to 85C up to 125C Min. 1.5 2.1 2.3 3.15 4.2 0.5 0.9 1.0 1.35 1.8 670 320 305 240 220 15 12 12 12 13 0.5 0.5 0.9 1.0 1.35 1.8 700 360 345 270 250 20 16 16 16 18 1.0 Max. Unit Typ. Max. Min. Max. 1.5 2.1 2.3 3.15 4.2 VIHC High Level Input Voltage V VILC Low Level Input Voltage V RON ON Resistance IOFF IOFF ION IIN ICC Input/Output Leakage Current (SWITCH OFF) (Any Channel) Input/Output Leakage Current (SWITCH OFF) (Common Channel) Switch Input Leakage Current (SWITCH ON, OUTPUT OPEN) Control Input Current Quiescent Supply Current VIN = VCC or GND A 6.0 0.2 2 4 A 0.1 0.5 1 A 6.0 6.0 VIN = VCC or GND VIN = VCC or GND VIN(analog)= GND 0.1 2 0.1 20 1 40 A A 6.0 VIN = VCC or GND 4/11 M74HC4851 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns) Test Condition Symbol Parameter VCC (V) 2.0 3.0 3.3 4.5 6.0 2.0 3.0 3.3 4.5 6.0 2.0 3.0 3.3 4.5 6.0 TEST CIRCUIT 1 TA = 25C Min. Value up to 85C up to 125C Min. Max. 32 19.5 18.5 13.5 12 40 23 22 17 16.5 115 110 105 100 80 10 Unit Typ. Max. Min. Max. 19.5 12 11 8.6 8 23 13.5 12.5 10 9.5 25 15.5 14.5 11.5 10 30 17.5 16.5 13 12.5 95 90 85 80 78 10 29 17.5 16.5 12.5 11 35 20 19 15 14.5 105 100 95 90 80 10 tPHL,tPLH Propagation Delay Time, Analog Input to Analog Output ns tPHL,tPLH Propagation Delay Time Channel-Select to Analog Output ns tPHZtPZH Enable Disable Time, Enable or tPLZ,tPZL Channel-Select to Analog Output ns CIN CIN CIN CPD Input Capacitance (Digital Pins) Input Capacitance (Switches Off, Any Single Analog Pins) Input Capacitance (Switches Off, Any Common Analog Pins) Power Dissipation Capacitance (*) 3.5 pF pF 6.7 15 15 15 pF 22 3.3 5.0 24 28 40 40 40 pF (*) 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/8 INJECTION CURRENT COUPLING SPECIFICATION (TA= -55C to +125C) Test Condition Symbol VOUT Parameter Shift of Output Voltage of Enabled Analog Channel VCC (V) 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 TEST CIRCUIT 2 IIN 1mA, RS 3.9K IIN 10mA, RS 3.9K IIN 1mA, RS 20K IIN 10mA, RS 20K Typ.(1) 0.050 0.100 0.345 0.067 0.050 0.110 0.050 0.024 Value Unit Max. 1.0 1.0 5.0 5.0 2.0 2.0 20 20 mV 1) Typical values are measured at TA=25C e they are calculate as differance from Vout without Injection Current and Vout with Injection Current. IIN = total current injected into any other disabled channels, one at time. 5/11 M74HC4851 TEST CIRCUIT 1 TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ CL =50pF or equivalent (includes jig and probe capacitance) RL = R1 = 10K or equivalent RT = ZOUT of pulse generator (typically 50) SWITCH Open VCC GND TEST CIRCUIT 2 6/11 M74HC4851 WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle) WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle) 7/11 M74HC4851 WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle) CHANNEL RESISTANCE (RON) ICC (Opr.) 8/11 M74HC4851 SO-16 MECHANICAL DATA DIM. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 9.8 5.8 1.27 8.89 4.0 5.3 1.27 0.62 8 (max.) 0.149 0.181 0.019 10 6.2 0.35 0.19 0.5 45 (typ.) 0.385 0.228 0.050 0.350 0.157 0.208 0.050 0.024 0.393 0.244 0.1 mm. MIN. TYP MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.003 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 PO13H 9/11 M74HC4851 TSSOP16 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 4.9 6.2 4.3 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 5.1 6.6 4.48 0.002 0.031 0.007 0.004 0.193 0.244 0.169 0.197 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 0.201 0.260 0.176 inch A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080338D 10/11 M74HC4851 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) 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. (c) http://www.st.com 11/11 |
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