74LVX257MTR

74LVX257 LOW VOLTAGE CMOS QUAD 2 CHANNEL MULTIPLEXER (3-STATE) WITH 5V TOLERANT INPUTS ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD=5.8ns (TYP.) at VCC = 3.3V 5V TOLERANT INPUTS POWER-DOWN PROTECTION ON INPUTS INPUT VOLTAGE LEVEL: VIL = 0.8V, VIH = 2V at VCC =3V LOW POWER DISSIPATION: ICC = 4 µA (MAX.) at TA=25°C LOW NOISE: VOLP = 0.3V (TYP.) at VCC =3.3V SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4 mA (MIN) at VCC =3V BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 257 IMPROVED LATCH-UP IMMUNITY SOP Table 1: Order Codes t c u d o r P e t e l o s b O t e l o T&R 74LVX257MTR 74LVX257TTR s b O multiplexer. When the ENABLE INPUT is held "High", all outputs become in high impedance state. If SELECT INPUT is held "Low", "A" data is selected, when SELECT INPUT is "High", "B" data is chosen. Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V. It combines high speed performance with the true CMOS low power consumption. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. ) (s DESCRIPTION The 74LVX257 is a low voltage CMOS QUAD 2 CHANNEL MULTIPLEXER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power, battery operated and low noise 3.3V applications. It is composed of four independent 2-channel multiplexers with common SELECT and ENABLE (OE) INPUT. The 74LVX257 is a non-inverting u d o r P e PACKAGE SOP TSSOP ) s ( ct TSSOP Figure 1: Pin Connection And IEC Logic Symbols August 2004 Rev. 3 1/13 74LVX257 Figure 2: Input Equivalent Circuit Table 2: Pin Description PIN N° SYMBOL NAME AND FUNCTION 1 SELECT 2, 5, 11, 14 1A to 4A 3, 6, 10, 13 1B to 4B 4, 7, 9, 12 1Y to 4Y 15 OE 8 16 GND VCC Common Data Select Inputs Data Inputs From Source A Data Inputs From Source B 3 State Multiplexer Outputs 3 State Output Enable Inputs (Active LOW) Ground (0V) Positive Supply Voltage ) s ( ct u d o Table 3: Truth Table INPUTS OE SELECT A H L L L L X L L H H X L H X X ) (s X :Don‘t Care Z : High Impedance t c u Figure 3: Logic Diagram d o r P e t e l o s b O This logic diagram has not be used to estimate propagation delays 2/13 e t e ol B s b O X X X L H Pr OUTPUT Y Z L H L H 74LVX257 Table 4: Absolute Maximum Ratings Symbol VCC Parameter Supply Voltage VI DC Input Voltage VO DC Output Voltage IIK DC Input Diode Current IOK DC Output Diode Current IO DC Output Current Unit -0.5 to +7.0 V -0.5 to +7.0 V -0.5 to VCC + 0.5 - 20 V mA ± 20 mA ICC or IGND DC VCC or Ground Current Storage Temperature Tstg TL Value ± 25 mA ± 50 mA ) s ( ct -65 to +150 Lead Temperature (10 sec) °C 300 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied Table 5: Recommended Operating Conditions Symbol VCC Value let Supply Voltage (note 1) Input Voltage VO Output Voltage Top Operating Temperature dt/dv so Input Rise and Fall Time (note 2) (VCC = 3V) ) (s 1) Truth Table guaranteed: 1.2V to 3.6V 2) VIN from 0.8V to 2.0V b O t c u Table 6: DC Specifications od Test Condition Symbol VIH Parameter e t e ol High Level Input Voltage s b O VIL VOH VOL IOZ II ICC r P e Parameter VI Low Level Input Voltage High Level Output Voltage Low Level Output Voltage High Impedance Output Leakage Current Input Leakage Current Quiescent Supply Current Pr VCC (V) u d o 2 to 3.6 V 0 to 5.5 V 0 to VCC V -55 to 125 °C 0 to 100 ns/V Value TA = 25°C Min. 2.0 3.0 3.6 2.0 3.0 3.6 Unit Typ. Max. 1.5 2.0 2.4 -40 to 85°C -55 to 125°C Min. Min. Max. 1.5 2.0 2.4 0.5 0.8 0.8 Max. 1.5 2.0 2.4 0.5 0.8 0.8 Unit V 0.5 0.8 0.8 V 2.0 IO=-50 µA 3.0 3.0 2.0 IO=50 µA 0.0 0.1 0.1 0.1 3.0 IO=50 µA 0.0 0.1 0.1 0.1 3.0 IO=4 mA 0.36 0.44 0.55 3.6 VI = VIH or VIL VO = VCC or GND ±0.25 ± 2.5 ±5 µA 3.6 VI = 5.5V or GND ± 0.1 ±1 ±1 µA 3.6 VI = VCC or GND 4 40 40 µA 1.9 2.0 IO=-50 µA 2.9 3.0 IO=-4 mA 2.58 1.9 1.9 2.9 2.9 2.48 2.4 V V 3/13 74LVX257 Table 7: Dynamic Switching Characteristics Test Condition Symbol VOLP VOLV VIHD VILD Parameter Dynamic Low Voltage Quiet Output (note 1, 2) Dynamic High Voltage Input (note 1, 3) Dynamic Low Voltage Input (note 1, 3) Value TA = 25°C VCC (V) Min. 3.3 -0.5 CL = 50 pF 3.3 Typ. Max. 0.3 0.5 -40 to 85°C -55 to 125°C Min. Min. Max. Unit Max. -0.3 V 2.0 3.3 ) s ( ct 0.8 u d o 1) Worst case package. 2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND. 3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold (VIHD), f=1MHz. r P e Table 8: AC Electrical Characteristics (Input tr = tf = 3ns) t e l o Test Condition Symbol tPLH tPHL tPLH tPHL tPZL tPZH Parameter Propagation Delay Time A, B, to Y Propagation Delay Time SELECT to Y e t e ol Output Enable Time s b O tPLZ tPHZ Output Disable Time tOSLH tOSHL Output to Output Skew Time (note 1,2) VCC (V) CL (pF) 2.7 2.7 15 50 3.3(*) 15 3.3(*) 2.7 2.7 50 TA = 25°C Min. Pr ) (s ct u d o 15 50 Value s b O -40 to 85°C -55 to 125°C Typ. Max. Min. Max. Min. Max. 7.0 9.5 13.0 18.0 1.0 1.0 15.4 20.3 1.0 1.0 16.4 21.3 5.8 9.3 1.0 11.0 1.0 12.0 8.3 12.8 1.0 14.5 1.0 15.5 8.5 10.5 15.4 20.3 1.0 1.0 18.2 23.1 1.0 1.0 20.0 24.5 7.0 11.0 1.0 13.0 1.0 14.0 (*) 15 3.3(*) 2.7 2.7 50 9.5 14.5 1.0 16.5 1.0 18.0 15 50 8.0 10.5 14.7 19.6 1.0 1.0 17.5 22.4 1.0 1.0 18.5 24.0 3.3(*) 15 6.7 10.5 1.0 12.5 1.0 13.5 3.3(*) 2.7 50 9.2 14.0 1.0 16.0 1.0 17.0 50 9.5 16.8 1.0 18.9 1.0 20.0 3.3(*) 2.7 50 8.6 12.0 1.0 13.5 1.0 15.0 50 0.5 1.0 1.5 1.5 3.3(*) 50 0.5 1.0 1.5 1.5 3.3 Unit ns ns ns ns ns 1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW 2) Parameter guaranteed by design (*) Voltage range is 3.3V ± 0.3V 4/13 74LVX257 Table 9: Capacitive Characteristics Test Condition Symbol Parameter CIN Input Capacitance COUT Output Capacitance Power Dissipation Capacitance (note 1) CPD Value TA = 25°C VCC (V) Min. -40 to 85°C -55 to 125°C Min. Min. Max. Unit Typ. Max. Max. 3.3 4 10 3.3 6 pF 3.3 23 pF 10 10 pF ) s ( ct 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/4 (per channel) u d o Figure 4: Test Circuit r P e t e l o ) (s s b O t c u d o r t e l o tPLH, tPHL tPZL, tPLZ s b O tPZH, tPHZ P e TEST SWITCH Open VCC GND CL =15/50pF or equivalent (includes jig and probe capacitance) RL = R1 = 1KΩ or equivalent RT = ZOUT of pulse generator (typically 50Ω) 5/13 74LVX257 Figure 5: Waveform - Propagation Delays For Inverting Conditions (f=1MHz; 50% duty cycle) ) s ( ct u d o r P e t e l o Figure 6: Waveform - Propagation Delays For Non-inverting Conditions (f=1MHz; 50% duty cycle) ) (s t c u d o r P e t e l o s b O 6/13 s b O 74LVX257 Figure 7: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle) ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O 7/13 74LVX257 SO-16 MECHANICAL DATA mm. DIM. MIN. inch TYP MAX. A MIN. TYP. a1 1.75 MAX. 0.1 0.068 0.25 a2 0.004 0.010 1.64 0.063 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 c1 45° (typ.) D 9.8 10 0.385 E 5.8 6.2 0.228 e u d o 0.393 1.27 e3 ) s ( ct 0.019 Pr 0.050 e t e l 8.89 0.244 0.350 F 3.8 4.0 0.149 G 4.6 5.3 0.181 L 0.5 1.27 M 0.62 so 0.019 ) (s S b O 0.157 0.208 0.050 0.024 8° (max.) t c u d o r P e t e l o s b O 0016020D 8/13 74LVX257 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 c 0.09 0.20 0.004 D 4.9 5 5.1 0.193 E 6.2 6.4 6.6 0.244 E1 4.3 4.4 4.48 0.169 1 e K 0˚ L 0.45 A O ) 0.60 r P e 0.197 bs 8˚ 0.75 s ( t c u d o 0.0079 t e l o 0.65 BSC ) s ( ct 0.012 0.201 0.252 0.260 0.173 0.176 0.0256 BSC 0˚ 8˚ 0.018 0.024 0.030 u d o r P e A2 let A1 o s b b O e K c L E D E1 PIN 1 IDENTIFICATION 1 0080338D 9/13 74LVX257 Tape & Reel SO-16 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. A TYP. MAX. 330 13.2 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 0.504 0.519 ) s ( ct 22.4 0.882 Ao 6.45 6.65 0.254 Bo 10.3 10.5 0.406 Ko 2.1 2.3 0.082 Po 3.9 4.1 0.153 P 7.9 8.1 0.311 ) (s t c u d o r P e t e l o s b O 10/13 MIN. 0.262 ro P e let so b O du 0.414 0.090 0.161 0.319 74LVX257 Tape & Reel TSSOP16 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. A MIN. TYP. MAX. 330 13.2 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 0.504 0.519 ) s ( ct 22.4 0.882 Ao 6.7 6.9 0.264 Bo 5.3 5.5 0.209 Ko 1.6 1.8 0.063 Po 3.9 4.1 0.153 P 7.9 8.1 0.311 ) (s 0.272 ro P e let so b O du 0.217 0.071 0.161 0.319 t c u d o r P e t e l o s b O 11/13 74LVX257 Table 10: Revision History Date Revision 27-Aug-2004 3 Description of Changes Ordering Codes Revision - pag. 1. ) s ( ct u d o r P e t e l o ) (s t c u d o r P e t e l o s b O 12/13 s b O 74LVX257 ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O Information furnished is believed to be accurate and reliable. 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