74AC520SC

74AC520, 74ACT520 8-Bit Identity Comparator March 2007 74AC520, 74ACT520 8-Bit Identity Comparator Features ■ Compares two 8-bit words in 6.5ns typ. ■ Expandable to any word length ■ 20-pin package ■ Outputs source/sink 24mA ■ ACT520 has TTL-compatible inputs tm General Description The AC/ACT520 are expandable 8-bit comparators. They compare two words of up to eight bits each and provide a LOW output when the two words match bit for bit. The expansion input IA = B also serves as an active LOW enable input. Ordering Information Order Number 74AC520SC 74ACT520SC 74ACT520SJ 74ACT520PC Package Number M20B M20B M20D N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number. Connection Diagram Pin Descriptions Pin Names A0–A7 B0–B7 TA = B OA = B Description Word A Inputs Word B Inputs Expansion or Enable Input Identity Output Truth Table Inputs IA = B L L H H H = HIGH Voltage Level L = LOW Voltage Level Note: 1. A0 = B0, A1 = B1, A2 = B2, etc. Outputs A, B A= A= B(1) B(1) A≠B A≠B OA = B L H H H FACT™ is a trademark of Fairchild Semiconductor Corporation. ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 74AC520, 74ACT520 8-Bit Identity Comparator Logic Symbols IEEE/IEC Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 2 74AC520, 74ACT520 8-Bit Identity Comparator Applications Ripple Expansion Parallel Expansion ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 3 74AC520, 74ACT520 8-Bit Identity Comparator Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol VCC IIK Supply Voltage DC Input Diode Current VI = –0.5V VI = VCC + 0.5V VI IOK DC Input Voltage DC Output Diode Current VO = –0.5V VO = VCC + 0.5V VO IO TSTG TJ DC Output Voltage Parameter Rating –0.5V to +7.0V –20mA +20mA –0.5V to VCC + 0.5V –20mA +20mA –0.5V to VCC + 0.5V ±50mA ±50mA –65°C to +150°C 140°C DC Output Source or Sink Current Storage Temperature Junction Temperature ICC or IGND DC VCC or Ground Current per Output Pin Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Symbol VCC Supply Voltage AC ACT VI VO TA ∆V / ∆t ∆V / ∆t Input Voltage Output Voltage Operating Temperature Parameter Rating 2.0V to 6.0V 4.5V to 5.5V 0V to VCC 0V to VCC –40°C to +85°C 125mV/ns 125mV/ns Minimum Input Edge Rate, AC Devices: VIN from 30% to 70% of VCC, VCC @ 3.3V, 4.5V, 5.5V Minimum Input Edge Rate, ACT Devices: VIN from 0.8V to 2.0V, VCC @ 4.5V, 5.5V ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 4 74AC520, 74ACT520 8-Bit Identity Comparator DC Electrical Characteristics for AC TA = +25°C TA = –40°C to +85°C Symbol VIH Parameter Minimum HIGH Level Input Voltage VCC (V) 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 Conditions VOUT = 0.1V or VCC – 0.1V VOUT = 0.1V or VCC – 0.1V IOUT = –50µA Typ. 1.5 2.25 2.75 1.5 2.25 2.75 2.99 4.49 5.49 Guaranteed Limits 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.56 3.86 4.86 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.46 3.76 4.76 0.1 0.1 0.1 0.44 0.44 0.44 ±1.0 10.0 –1.0 75 –75 4.0 40.0 8.0 Units V VIL Maximum LOW Level Input Voltage V VOH Minimum HIGH Level Output Voltage V VIN = VIL or VIH: 3.0 4.5 5.5 VOL Maximum LOW Level Output Voltage 3.0 4.5 5.5 VIN = VIL or VIH: 3.0 4.5 5.5 IIN(4) IIH IIL IOLD IOHD ICC ICC(4) Maximum Input Leakage Current Maximum Input HIGH Leakage Current Maximum Input LOW Leakage Current Minimum Dynamic Output Current(3) Maximum Quiescent Supply Current Maximum Quiescent Supply Current 5.5 5.5 5.5 5.5 5.5 5.5 5.5 IOL = 12mA IOL = 24mA IOL = 24mA(2) VI = VCC, GND, A Inputs Only VI = VCC, B Inputs Only VI = VCC, B Inputs Only VOLD = 1.65V Max. VOHD = 3.85V Min. VIN = VCC VIN = GND 2.3 –0.3 0.36 0.36 0.36 ±0.1 10.0 –0.6 IOH = –12mA IOH = –24mA IOH = –24mA(2) 0.002 0.001 0.001 IOUT = 50µA 0.1 0.1 0.1 V µA µA mA mA mA µA mA 4.8 Notes: 2. All outputs loaded; thresholds on input associated with output under test. 3. Maximum test duration 2.0ms, one output loaded at a time. 4. IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC. ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 5 74AC520, 74ACT520 8-Bit Identity Comparator DC Electrical Characteristics for ACT TA = +25°C Symbol VIH VIL VOH TA = –40°C to +85°C Guaranteed Limits Units V V V 2.0 2.0 0.8 0.8 4.4 5.4 3.76 4.76 0.1 0.1 0.44 0.44 ±1.0 10.0 µA µA V Parameter Minimum HIGH Level Input Voltage Maximum LOW Level Input Voltage Minimum HIGH Level Output Voltage VCC (V) 4.5 5.5 4.5 5.5 4.5 5.5 Conditions VOUT = 0.1V or VCC – 0.1V VOUT = 0.1V or VCC – 0.1V IOUT = –50µA VIN = VIL or VIH: Typ. 1.5 1.5 1.5 1.5 4.49 5.49 2.0 2.0 0.8 0.8 4.4 5.4 3.86 4.86 0.001 0.001 0.1 0.1 0.36 0.36 ±0.1 10.0 4.5 5.5 VOL Maximum LOW Level Output Voltage 4.5 5.5 IOH = –24mA IOH = –24mA(5) IOUT = 50µA VIN = VIL or VIH: 4.5 5.5 IIN IIH Maximum Input Leakage Current Maximum Input HIGH Leakage Current Maximum Input LOW Leakage Current Maximum ICC/Input Minimum Dynamic Output Current(6) Maximum Quiescent Supply Current Maximum Quiescent Supply Current 5.5 5.5 IOL = 24mA IOL = 24mA(5) VI = VCC, GND VI = VCC, B Inputs Only VI = VCC, B Inputs Only VI = VCC – 2.1V VOLD = 1.65V Max. VOHD = 3.85V Min. VIN = VCC or GND VIN = GND 2.3 –0.3 0.6 IIL ICCT IOLD IOHD ICC ICC 5.5 5.5 5.5 5.5 5.5 5.5 –0.6 –1.0 1.5 75 –75 mA mA mA mA µA mA 4.0 4.8 40.0 8.0 Notes: 5. All outputs loaded; thresholds on input associated with output under test. 6. Maximum test duration 2.0ms, one output loaded at a time. ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 6 74AC520, 74ACT520 8-Bit Identity Comparator AC Electrical Characteristics for AC TA = +25°C, CL = 50pF Symbol tPLH tPHL tPLH tPHL TA = –40°C to +85°C, CL = 50pF Min. 3.0 2.0 3.5 2.5 2.5 2.0 2.5 2.0 Parameter Propagation Delay, An or Bn to O A = B Propagation Delay, An or Bn to OA = B Propagation Delay, IA = B to OA = B Propagation Delay, IA = B to OA = B VCC (V)(7) 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 Min. 4.0 2.5 4.5 3.0 3.5 2.5 3.5 2.5 Typ. 7.5 5.5 8.0 5.5 5.5 4.5 5.5 4.5 Max. 11.5 8.5 12.0 9.0 8.5 6.5 8.5 6.5 Max. 13.0 9.5 13.5 10.0 9.5 7.0 9.5 7.0 Units ns ns ns ns Note: 7. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V. AC Electrical Characteristics for ACT TA = +25°C, CL = 50pF Symbol tPLH tPHL tPLH tPHL TA = –40°C to +85°C, CL = 50 pF Min. 2.5 2.5 2.0 2.0 Parameter Propagation Delay, An or Bn to O A = B Propagation Delay, An or Bn to OA = B Propagation Delay, IA = B to OA = B Propagation Delay, IA = B to OA = B VCC (V)(8) 5.0 5.0 5.0 5.0 Min. 3.0 3.0 2.0 2.5 Typ. 5.5 6.0 4.0 5.0 Max. 8.5 10.0 6.0 7.5 Max. 9.5 11.5 6.5 8.5 Units ns ns ns ns Note: 8. Voltage range 5.0 is 5.0V ± 0.5V Capacitance Symbol CIN CPD Parameter Input Capacitance Power Dissipation Capacitance Conditions VCC = OPEN VCC = 5.0V Typ. 4.5 40 Units pF pF ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 7 74AC520, 74ACT520 8-Bit Identity Comparator Physical Dimensions Dimensions are in inches (millimeters) unless otherwise noted. Figure 1. 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 8 74AC520, 74ACT520 8-Bit Identity Comparator Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure 2. 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 9 74AC520, 74ACT520 8-Bit Identity Comparator Physical Dimensions (Continued) Dimensions are in inches (millimeters) unless otherwise noted. Figure 3. 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N20A ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 10 74AC520, 74ACT520 8-Bit Identity Comparator TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx Across the board. Around the world. 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FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Preliminary Product Status Formative or In Design First Production Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only. Rev. I24 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. No Identification Needed Full Production Obsolete Not In Production ©1989 Fairchild Semiconductor Corporation 74AC520, 74ACT520 Rev. 1.4 www.fairchildsemi.com 11