74ACT157MTR

74ACT157 QUAD 2 CHANNEL MULTIPLEXER ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 5.5 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.), V IL = 0.8V (MAX.) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 157 IMPROVED LATCH-UP IMMUNITY DESCRIPTION The 74ACT157 is an advanced high-speed CMOS QUAD 2-CHANNEL MULTIPLEXER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology. It consists of four 2-input digital multiplexer with common SELECT and STROBE inputs. It is a non-inverting multiplexer. When the STROBE input is held high selection of data is inhibit and all ) s ( ct DIP SOP TSSOP ORDER CODES PACKAGE TUBE DIP SOP TSSOP 74ACT157B 74ACT157M ) s t( T&R o r P c u d 74ACT157MTR 74ACT157TTR the outputs become low. The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs. The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. e t le o s b O - u d o r P e PIN CONNECTION AND IEC LOGIC SYMBOLS t e l o s b O April 2001 1/10 74ACT157 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1 SELECT 2, 5, 11, 14 1A to 4A 3, 6, 10, 13 1B to 4B 4, 7, 9, 12 15 8 16 1Y to 4Y STROBE GND VCC Common Data Select Inputs Data Inputs From Source A Data Inputs From Source B Multiplexer Outputs Strobe Input Ground (0V) Positive Supply Voltage TRUTH TABLE INPUTS OUTPUT STROBE SELECT A B H L L L L X L L H H X L H X X X X X L H LOGIC DIAGRAM ) s ( ct u d o r P e t e l o s b O 2/10 o s b O - uc d o r P e let X : Don’t Care ) s t( Y L L H L H 74ACT157 ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Value Supply Voltage Unit -0.5 to +7 V -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 V DC Input Diode Current ± 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 50 mA ± 200 mA VI DC Input Voltage VO DC Output Voltage IIK ICC or IGND DC VCC or Ground Current Tstg Storage Temperature TL Lead Temperature (10 sec) V -65 to +150 °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. RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Value Unit uc Supply Voltage 4.5 to 5.5 VI Input Voltage 0 to VCC VO Output Voltage Top Operating Temperature dt/dv 1) VIN from 0.8V to 2.0V ) s ( ct d o r P e let Input Rise and Fall Time VCC = 4.5 to 5.5V (note 1) ) s t( V V 0 to VCC V -55 to 125 °C 8 ns/V o s b O - u d o r P e t e l o s b O 3/10 74ACT157 DC SPECIFICATIONS Test Condition Symbol Parameter Value TA = 25°C VCC (V) Min. Typ. 2.0 2.0 1.5 1.5 Max. -40 to 85°C -55 to 125°C Min. Min. Max. VIH High Level Input Voltage 4.5 5.5 VO = 0.1 V or VCC-0.1V VIL Low Level Input Voltage 4.5 5.5 VO = 0.1 V or VCC-0.1V VOH High Level Output Voltage 4.5 IO=-50 µA 4.4 4.49 4.4 4.4 5.5 IO=-50 µA 5.4 5.49 5.4 5.4 4.5 IO=-24 mA 3.86 3.76 3.7 4.86 VOL Low Level Output Voltage II ICCT Input Leakage Current Max ICC/Input 1.5 1.5 Max. 0.8 0.8 2.0 2.0 0.8 0.8 V 0.8 0.8 V 5.5 IO=-24 mA 4.5 IO=50 µA 0.001 0.1 0.1 0.1 5.5 IO=50 µA 0.001 0.1 0.1 0.1 4.5 IO=24 mA 0.36 0.44 5.5 IO=24 mA 0.36 0.44 5.5 VI = VCC or GND ± 0.1 ±1 5.5 VI = VCC - 2.1V ICC Quiescent Supply Current 5.5 VI = VCC or GND IOLD Dynamic Output Current (note 1, 2) 5.5 IOHD 2.0 2.0 4.76 4.7 1.5 P e let VOLD = 1.65 V max VOHD = 3.85 V min o s b O - V ) s t( 0.5 c u d ro 0.6 4 Unit 40 0.5 ±1 µA 1.6 mA 80 µA 75 50 mA -75 -50 mA 1) Maximum test duration 2ms, one output loaded at time 2) Incident wave switching is guaranteed on trasmission lines with impedances as low as 50Ω AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns) ) s ( ct Test Condition Symbol Parameter VCC (V) du tPLH tPHL Propagation Delay 5.0(*) Time SELECT to Y tPLH tPHL Propagation Delay 5.0(*) Time STROBE to Y tPLH tPHL Propagation Delay 5.0(*) Time A, B to Y o r P e t e l o s b O (*) Voltage range is 5.0V ± 0.5V 4/10 Value TA = 25°C -40 to 85°C -55 to 125°C Unit Min. Typ. Max. Min. Max. Min. Max. 1.5 5.5 9.0 1.5 10.0 1.5 11.3 ns 1.5 6.5 8.5 1.5 9.0 1.5 11.5 ns 1.5 6.5 9.0 1.5 8.5 1.5 10.8 ns 74ACT157 CAPACITIVE CHARACTERISTICS Test Condition Symbol Parameter Value TA = 25°C VCC (V) CIN Input Capacitance 5.0 CPD Power Dissipation Capacitance (note 1) 5.0 Min. fIN = 10MHz Typ. Max. -40 to 85°C -55 to 125°C Min. Min. Max. Unit Max. 5.5 pF 37 pF 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 f IN + ICC/n (per circuit) TEST CIRCUIT c u d e t le ) s ( ct CL = 50pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) ) s t( o r P o s b O - u d o r P e t e l o s b O 5/10 74ACT157 WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING CONDITIONS (f=1MHz; 50% duty cycle) c u d ) s t( WAVEFORM 2: PROPAGATION DELAYS FOR NON-INVERTING CONDITIONS (f=1MHz; 50% duty cycle) e t le ) s ( ct u d o r P e t e l o s b O 6/10 o s b O - o r P 74ACT157 Plastic DIP-16 (0.25) MECHANICAL DATA mm DIM. MIN. a1 0.51 B 0.77 TYP. inch MAX. MIN. TYP. MAX. 0.020 1.65 0.030 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 17.78 0.700 F 7.1 I 5.1 L c u d e t le 3.3 Z 1.27 ) s ( ct o s b O - o r P ) s t( 0.280 0.201 0.130 0.050 u d o r P e t e l o s b O P001C 7/10 74ACT157 SO-16 MECHANICAL DATA mm DIM. MIN. TYP. A inch MAX. MIN. TYP. a1 1.75 0.1 0.068 0.2 a2 MAX. 0.004 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 10 0.385 E 5.8 6.2 0.228 0.393 e 1.27 0.050 e3 8.89 0.350 F 3.8 4.0 0.149 G 4.6 5.3 0.181 L 0.5 1.27 0.019 M e t le 0.62 S 8 (max.) ) s ( ct ) s t( 0.244 o r P c u d 0.157 0.208 0.050 0.024 o s b O - u d o r P e t e l o s b O P013H 8/10 74ACT157 TSSOP16 MECHANICAL DATA mm DIM. MIN. inch TYP. A MAX. MIN. TYP. MAX. 1.1 0.433 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 0.85 0.9 0.95 0.335 0.354 0.374 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 D 4.9 5 5.1 0.193 0.197 E 6.25 6.4 6.5 0.246 0.252 E1 4.3 4.4 4.48 0.169 0.173 e r P e t le 0.65 BSC o K 0 L 0.50 A o du b A1 o r P e t e l o s b O 4 8 0.60 0.70 e uc od 0.256 0.176 0.0256 BSC o ) s ( ct A2 ) s t( 0.201 o o s b O - 0 4o 8o 0.020 0.024 0.028 K c L E D E1 PIN 1 IDENTIFICATION 1 9/10 74ACT157 c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 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. © The ST logo is a registered trademark of STMicroelectronics © 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 © http://www.st.com 10/10