M74HC4851 SINGLE 8 CHANNEL ANALOG MUX/DEMUX WITH INJECTION CURRENT PROTECTION ■ ■ ■ ■ ■ ■ ■ ■ ■ LOW POWER DISSIPATION: ICC = 2µA(MAX.) at TA=25°C INJECTION CURRENT PROTECTION: V∆OUT<1mV at VCC=5V IIN≤1mA R S≤3.9KΩ "ON" RESISTANCE at TA=25°C: 215Ω TYP. (VCC = 3.0V) 150Ω TYP. (VCC = 4.5V) 160Ω 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 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 SOP TSSOP ORDER CODES PACKAGE TUBE T&R SOP TSSOP M74HC4851M1R M74HC4851RM13TR M74HC4851TTR 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. PIN CONNECTION AND IEC LOGIC SYMBOLS September 2002 1/11 M74HC4851 CONTROL INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 3 COM OUT/IN INH NC Common Output/Input A, B, C 0 to 7 Select Inputs Independent Input/Outputs Ground (0V) 6 7 11, 10, 9 13, 14, 15, 12, 1, 5, 2, 4 8 16 GND VCC NAME AND FUNCTION INHIBIT Input Not Connected Positive Supply Voltage TRUTH TABLE I/O EQUIVALENT CIRCUIT INPUT STATE ON CHANNEL INH C B A 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 X: Don’t care FUNCTIONAL DIAGRAM 2/11 0 1 2 3 4 5 6 7 NONE M74HC4851 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCC Supply Voltage VIN Control Input Voltage VI/O Switch I/O Voltage ICK Control Input Diode Current IIOK I/O Diode Current ± 25 mA ICC DC VCC or Ground Current ± 50 mA PD Power Dissipation 500(*) 450(*) mW mW Tstg Storage Temperature -65 to +150 °C TL Lead Temperature (10 sec) 300 °C SOP TSSOP -0.5 to +7 V -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 V V ± 25 mA 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 65°C to 125°C: SO Package -7mW/°C; TSSOP Package -6.1mW/°C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit VCC Supply Voltage 2 to 6 V VI/O Input Output Voltage 0 to VCC V VI/O Static or Dynamic Voltage Across Switch (note1) 0 to 1.2 V VIN Control Input Voltage Top Operating Temperature tr, tf Input Rise and Fall Time (note2) VCC = 2.0V 0 to 1000 (Channel Select or Enable Inputs only) VCC = 3.0.V 0 to 800 VCC = 3.3V 0 to 700 VCC = 4.5V 0 to 500 VCC = 6.0V 0 to 400 0 to VCC V -55 to 125 °C ns 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 VIHC VILC RON ∆RON IOFF IOFF ION IIN ICC 4/11 Parameter High Level Input Voltage Low Level Input Voltage ON Resistance Difference of ON Resistance between switches 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 TA = 25°C VCC (V) Min. 2.0 3.0 3.0 4.5 6.0 2.0 3.0 3.3 4.5 6.0 2.0 up to 85°C Typ. Max. Min. Max. 1.5 2.1 2.3 3.15 4.2 IS=2mA 3.0 3.3 4.5 6.0 IS≤2mA 2.0 IS=2mA 3.0 3.3 4.5 6.0 6.0 Value IS≤2mA VIN = VIHC or VILC VIS = VCC to GND VIN = VIHC or VILC VIS = VCC/2 VIN = VCC or GND 1.5 2.1 2.3 3.15 4.2 up to 125°C Min. Unit Max. 1.5 2.1 2.3 3.15 4.2 V 0.5 0.9 1.0 1.35 1.8 0.5 0.9 1.0 1.35 1.8 0.5 0.9 1.0 1.35 1.8 500 650 670 700 215 210 160 150 280 270 210 195 320 305 240 220 360 345 270 250 4 10 15 20 2 2 2 3 8 8 8 9 ±0.1 12 12 12 13 ± 0.5 16 16 16 18 ± 1.0 V Ω Ω µA ± 0.2 6.0 ±2 ±4 µA 6.0 VIN = VCC or GND ±0.1 ± 0.5 ±1 µA 6.0 VIN = VCC or GND ± 0.1 ± 0.1 ±1 6.0 VIN = VCC or GND VIN(analog)= GND 2 20 40 µA µA M74HC4851 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns) Test Condition Symbol Parameter tPHL,tPLH Propagation Delay Time, Analog Input to Analog Output tPHL,tPLH Propagation Delay Time Channel-Select to Analog Output tPHZtPZH Enable Disable Time, Enable or tPLZ,tPZL Channel-Select to Analog Output 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 (*) VCC (V) TEST CIRCUIT 1 Value TA = 25°C Min. 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 up to 85°C Typ. Max. Min. Max. 19.5 12 11 8.6 8 23 13.5 12.5 10 9.5 3.5 up to 125°C Min. Unit Max. 25 15.5 14.5 11.5 10 30 17.5 16.5 13 12.5 95 90 85 80 78 29 17.5 16.5 12.5 11 35 20 19 15 14.5 105 100 95 90 80 32 19.5 18.5 13.5 12 40 23 22 17 16.5 115 110 105 100 80 10 10 10 ns ns ns pF pF 6.7 15 15 15 pF 22 3.3 24 5.0 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= -55°C to +125°C) Test Condition Symbol V∆OUT 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 Value Unit TEST CIRCUIT 2 Typ.(1) Max. IIN ≤ 1mA, RS ≤ 3.9KΩ 0.050 0.100 0.345 0.067 0.050 0.110 0.050 0.024 1.0 1.0 5.0 5.0 2.0 2.0 20 20 IIN ≤ 10mA, RS ≤ 3.9KΩ IIN ≤ 1mA, RS ≤ 20KΩ IIN ≤ 10mA, RS ≤ 20KΩ mV 1) Typical values are measured at TA=25°C 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 SWITCH Open tPZL, tPLZ VCC tPZH, tPHZ GND CL =50pF or equivalent (includes jig and probe capacitance) RL = R1 = 10KΩ or equivalent RT = ZOUT of pulse generator (typically 50Ω) 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) 8/11 ICC (Opr.) M74HC4851 SO-16 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.003 0.007 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45˚ (typ.) D 9.8 E 5.8 10 0.385 6.2 0.228 0.393 0.244 e 1.27 0.050 e3 8.89 0.350 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.62 0.024 8 ˚ (max.) PO13H 9/11 M74HC4851 TSSOP16 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 1 e 0.65 BSC K 0˚ L 0.45 A 0.60 0.0256 BSC 8˚ 0˚ 0.75 0.018 8˚ 0.024 0.030 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. 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