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| MOTOROLA SEMICONDUCTOR TECHNICAL DATA Product Preview Low-Voltage CMOS Octal Transceiver With 5V-Tolerant Inputs and Outputs (3-State, Non-Inverting) The MC74LCX2245 is a high performance, non-inverting octal transceiver operating from a 2.7 to 3.6V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX2245 inputs to be safely driven from 5V devices. The MC74LCX2245 is designed to reduce output overshoot and undershoot and is suitable for memory address driving and all TTL level bus oriented transceiver applications; especially those requiring the very quiet outputs. Current drive capability is 12mA at both A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bi-directional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition. MC74LCX2245 LOW-VOLTAGE CMOS OCTAL TRANSCEIVER DW SUFFIX 20-LEAD PLASTIC SOIC CASE 751D-04 * * * * * * * * Designed for 2.7 to 3.6V VCC Operation 5V Tolerant -- Interface Capability With 5V TTL Logic Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0V LVTTL Compatible LVCMOS Compatible 12mA Balanced Output Sink and Source Capability Near Zero Static Supply Current in All Three Logic States (10A) Substantially Reduces System Power Requirements * Latchup Performance Exceeds 500mA * ESD Performance: Human Body Model >2000V; Machine Model >200V M SUFFIX 20-LEAD PLASTIC SOIC EIAJ CASE 967-01 SD SUFFIX 20-LEADPLASTIC SSOP CASE 940C-03 DT SUFFIX 20-LEAD PLASTIC TSSOP CASE 948E-02 VCC 20 OE 19 B0 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 PIN NAMES Pins OE T/R A0-A7 B0-B7 Function Output Enable Input Transmit/Receive Input Side A 3-State Inputs or 3-State Outputs Side B 3-State Inputs or 3-State Outputs 1 T/R 2 A0 3 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 GND Figure 1. 20-Lead Pinout (Top View) This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. 1/97 (c) Motorola, Inc. 1997 1 REV 0 MC74LCX2245 OE 19 T/R 1 2 18 A1 3 17 A2 4 16 A3 5 15 A4 6 14 A5 7 13 A6 8 12 A7 9 11 A0 B0 B1 B2 B3 B4 B5 B6 B7 Figure 2. Logic Diagram INPUTS OE L L H T/R L H X OPERATING MODE Non-Inverting B Data to A Bus A Data to B Bus Z H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions are Acceptable; For ICC reasons, Do Not Float Inputs MOTOROLA 2 LCX DATA BR1339 -- REV 3 MC74LCX2245 ABSOLUTE MAXIMUM RATINGS* Symbol VCC VI VO Parameter DC Supply Voltage DC Input Voltage DC Output Voltage Value -0.5 to +7.0 -0.5 VI +7.0 -0.5 VO +7.0 -0.5 VO VCC + 0.5 IIK IOK DC Input Diode Current DC Output Diode Current -50 -50 +50 IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current Per Supply Pin DC Ground Current Per Ground Pin Storage Temperature Range 50 100 100 -65 to +150 Output in 3-State Note 1. VI < GND VO < GND VO > VCC Condition Unit V V V V mA mA mA mA mA mA C * Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute-maximum-rated conditions is not implied. 1. Output in HIGH or LOW State. IO absolute maximum rating must be observed. RECOMMENDED OPERATING CONDITIONS Symbol VCC VI VO IOH IOL IOH IOL TA t/V Supply Voltage Input Voltage Output Voltage (HIGH or LOW State) (3-State) Parameter Operating Data Retention Only Min 2.0 1.5 0 0 0 Typ 3.3 3.3 Max 3.6 3.6 5.5 VCC 5.5 -12 12 -8 8 -40 0 +85 10 Unit V V V mA mA mA mA C ns/V HIGH Level Output Current, VCC = 3.0V - 3.6V LOW Level Output Current, VCC = 3.0V - 3.6V HIGH Level Output Current, VCC = 2.7V - 3.0V LOW Level Output Current, VCC = 2.7V - 3.0V Operating Free-Air Temperature Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V DC ELECTRICAL CHARACTERISTICS TA = -40C to +85C Symbol VIH VIL VOH Characteristic HIGH Level Input Voltage (Note 2.) LOW Level Input Voltage (Note 2.) HIGH Level Output Voltage Condition 2.7V VCC 3.6V 2.7V VCC 3.6V 2.7V VCC 3.6V; IOH = -100A VCC = 2.7V; IOH = -4mA VCC = 2.7V; IOH = -8mA VCC = 3.0V; IOH = -6mA VCC = 3.0V; IOH = -12mA 2. These values of VI are used to test DC electrical characteristics only. VCC - 0.2 2.2 2.0 2.4 2.0 Min 2.0 0.8 Max Unit V V V LCX DATA BR1339 -- REV 3 3 MOTOROLA MC74LCX2245 DC ELECTRICAL CHARACTERISTICS (continued) TA = -40C to +85C Symbol VOL Characteristic LOW Level Output Voltage Condition 2.7V VCC 3.6V; IOL = 100A VCC = 2.7V; IOL= 4mA VCC = 2.7V; IOL= 8mA VCC = 3.0V; IOL = 6mA VCC = 3.0V; IOL = 12mA II IOZ IOFF ICC ICC Input Leakage Current 3-State Output Current Power-Off Leakage Current Quiescent Supply Current 2.7V VCC 3.6V; 0V VI 5.5V 2.7 VCC 3.6V; 0V VO 5.5V; VI = VIH or V IL VCC = 0V; VI or VO = 5.5V 2.7 VCC 3.6V; VI = GND or VCC 2.7 VCC 3.6V; 3.6 VI or VO 5.5V Increase in ICC per Input 2.7 VCC 3.6V; VIH = VCC - 0.6V Min Max 0.2 0.4 0.6 0.55 0.8 5.0 5.0 10 10 10 500 A A A A A A Unit V AC CHARACTERISTICS (Note 3., tR = tF = 2.5ns; CL = 50pF; RL = 500) Limits TA = -40C to +85C VCC = 3.0V to 3.6V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tOSHL tOSLH Propagation Delay Input to Output Output Enable Time to High and Low Level Output Disable Time From High and Low Level Output-to-Output Skew (Note 4.) Parameter Waveform 1 2 2 Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 10.0 10.0 11.5 11.5 7.5 7.5 1.0 1.0 VCC = 2.7V Max 11.0 11.0 12.5 12.5 8.5 8.5 Unit ns ns ns ns 3. These AC parameters are preliminary and may be modified prior to release. 4. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH); parameter guaranteed by design. DYNAMIC SWITCHING CHARACTERISTICS TA = +25C Symbol VOLP Characteristic Dynamic LOW Peak Voltage (Note 5.) Condition VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V Min Typ 0.8 Max Unit V VOLV Dynamic LOW Valley Voltage (Note 5.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V 5. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the LOW state. MOTOROLA 4 LCX DATA BR1339 -- REV 3 MC74LCX2245 CAPACITIVE CHARACTERISTICS Symbol CIN CI/O CPD Parameter Input Capacitance Input/Output Capacitance Power Dissipation Capacitance Condition VCC = 3.3V, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC 10MHz, VCC = 3.3V, VI = 0V or VCC 2.7V An, Bn 1.5V 1.5V 0V tPLH Bn, An 1.5V tPHL VOH 1.5V VOL WAVEFORM 1 - PROPAGATION DELAYS tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns 2.7V OE, T/R tPZH An, Bn tPZL An, Bn 1.5V VOL + 0.3V GND WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns 1.5V 0V tPLZ 3.0V 1.5V tPHZ 1.5V 0V VCC VOH - 0.3V Typical 7 8 25 Unit pF pF pF Figure 3. AC Waveforms VCC 6V OPEN GND PULSE GENERATOR RT DUT CL R1 RL TEST tPLH, tPHL tPZL, tPLZ Open Collector/Drain tPLH and tPHL SWITCH Open 6V 6V tPZH, tPHZ GND CL = 50pF or equivalent (Includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50) Figure 4. Test Circuit LCX DATA BR1339 -- REV 3 5 MOTOROLA MC74LCX2245 OUTLINE DIMENSIONS DW SUFFIX PLASTIC SOIC PACKAGE CASE 751D-04 ISSUE E -A - 20 11 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.150 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 12.65 12.95 7.40 7.60 2.35 2.65 0.35 0.49 0.50 0.90 1.27 BSC 0.25 0.32 0.10 0.25 0 7 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.499 0.510 0.292 0.299 0.093 0.104 0.014 0.019 0.020 0.035 0.050 BSC 0.010 0.012 0.004 0.009 0 7 0.395 0.415 0.010 0.029 -B - 1 10 P 10 PL 0.010 (0.25) M B M D 20 PL J M 0.010 (0.25) T A S B S F R X 45 C -T G 18 PL SEATING - PLANE K M M SUFFIX PLASTIC SOIC EIAJ PACKAGE CASE 967-01 ISSUE O NOTES: 1 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2 CONTROLLING DIMENSION: MILLIMETER. 3 DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5 THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). DIM A A1 b c D E e HE L LE M Q1 Z MILLIMETERS MIN MAX --2.05 0.05 0.20 0.35 0.50 0.18 0.27 12.35 12.80 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 _ 0_ 0.70 0.90 --0.81 INCHES MIN MAX --0.081 0.002 0.008 0.014 0.020 0.007 0.011 0.486 0.504 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 _ 0_ 0.028 0.035 --0.032 20 11 LE Q1 E HE M_ L DETAIL P 1 10 Z D e A VIEW P c b 0.13 (0.005) M A1 0.10 (0.004) MOTOROLA 6 LCX DATA BR1339 -- REV 3 MC74LCX2245 OUTLINE DIMENSIONS SD SUFFIX PLASTIC SSOP PACKAGE CASE 940C-03 ISSUE B 20X K REF 0.12 (0.005) M TU S V S 0.25 (0.010) N L/2 L PIN 1 IDENT 20 11 M B N F 1 10 DETAIL E K -U- J A -V- 0.20 (0.008) M NOTES: 13 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 14 CONTROLLING DIMENSION: MILLIMETER. 15 DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 16 DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 17 DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION/INTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF K DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR INTRUSION SHALL NOT REDUCE DIMENSION K BY MORE THAN 0.07 (0.002) AT LEAST MATERIAL CONDITION. 18 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 19 DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE -W-. DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 7.07 7.33 5.20 5.38 1.73 1.99 0.05 0.21 0.63 0.95 0.65 BSC 0.59 0.75 0.09 0.20 0.09 0.16 0.25 0.38 0.25 0.33 7.65 7.90 0_ 8_ INCHES MIN MAX 0.278 0.288 0.205 0.212 0.068 0.078 0.002 0.008 0.024 0.037 0.026 BSC 0.023 0.030 0.003 0.008 0.003 0.006 0.010 0.015 0.010 0.013 0.301 0.311 0_ 8_ TU S SECTION N-N -W- 0.076 (0.003) -T- SEATING PLANE C D G H DETAIL E 20X K REF M DT SUFFIX PLASTIC TSSOP PACKAGE CASE 948E-02 ISSUE A TU S 0.15 (0.006) T U S 0.10 (0.004) V S 2X L/2 20 11 B L PIN 1 IDENT 1 10 J J1 -U- N 0.15 (0.006) T U S A -V- N F C D 0.100 (0.004) -T- SEATING PLANE G H DETAIL E LCX DATA BR1339 -- REV 3 7 IIII IIII IIII SECTION N-N DETAIL E -W- EEE CCC EEE CCC K1 K K1 M J1 0.25 (0.010) NOTES: 6 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 7 CONTROLLING DIMENSION: MILLIMETER. 8 DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 9 DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. 10 DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 11 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 12 DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE -W-. MILLIMETERS MIN MAX 6.40 6.60 4.30 4.50 --- 1.20 0.05 0.15 0.50 0.75 0.65 BSC 0.27 0.37 0.09 0.20 0.09 0.16 0.19 0.30 0.19 0.25 6.40 BSC 0_ 8_ INCHES MIN MAX 0.252 0.260 0.169 0.177 --- 0.047 0.002 0.006 0.020 0.030 0.026 BSC 0.011 0.015 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC 0_ 8_ DIM A B C D F G H J J1 K K1 L M MOTOROLA MC74LCX2245 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405; Denver, Colorado 80217. 303-675-2140 or 1-800-441-2447 MfaxTM: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 81-3-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 MOTOROLA 8 MC74LCX2245/D LCX DATA BR1339 -- REV 3 |
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