(1) PERICOM PI74FCT521T Fast CMOS Product Features: 8-Bit Identity Comparator PI74FCTS21T is pin compatible with bipolar FAST Series a at a higher speed and lower power consumption Product Description: * TTL input and output levels Pericom Semiconductor's PI74FCT series of logic circuits are pro- * Extremely low static power duced in the Companys advanced 0.8 micron CMOS technology, Hysteresis on all inputs achieving industry leading speed grades. * Industrial operating temperature range: 40C to +85C The PI74ECTS2IT is an 8-bit identity comparator. When two words of up to eight bits are compared, a bit-for-bit match of the two words provides a LOW output. The comparison can be extended over multiple words by the expansion input. The expansion input Ta=B also serves as an active LOW enable input. Packages available: 20-pin 173 mil wide plastic TSSOP (L20) 20-pin 300 mil wide plastic DIP (P20) 20-pin {50 mil wide plastic QSOP (Q20) 20-pin 150 mil wide plastic TQSOP (R20) 20-pin 300 mil wide plastic SOIC (S20) Logic Block Diagram Ao Bo Bi Ba A3 B3 |p ons Ba Bs As Be A7 B7 lA=B fila 102 PS2019A 03/11/96 (1) PERICOM PI74FCT521T 8-BIT IDENTITY COMPARATOR Product Pin Description Truth Table Pin Name Description Inputs Output TA=B Expansion or Enable Input (Active LOW) Ta-B A,B OA=B Oa=B Identity Output (Active LOW) L A =B* L A0-A7 Word A Inputs L A |B H Bo-B7 Word B Inputs H A =B* H GND Ground H A |B H Vec Power NOTE: |. H= High Voltage Level Product Pin Configuration ja=B [1 90 1 Veco Ao {]2 191] Oa-8 Bo {]3 20-PIN i18[] B7 Ai(f}4 20 170) A7 Bi 4 5 P20 i6f] Be A2 6 hee 15[] As B20 7 141] BS Ase 5 ish as B3 []9 121] Ba GND TJ 10 11[] A4 L = Low Voltage Level, *AO = BO, Al = BI, A2 = B2, etc. 103 PS2019A 03/11/96 (1) PERICOM Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature 0... ccceccecseccetseeeeeneeecessesseeeareeeesenseneseears 65C to + 150C Ambient Temperature with Power Applied ... 2 40C to 485C Supply Voltage to Ground Potential (Inputs & Vcc Only) oo. . -O.5V to+7.0V Supply Voltage to Ground Potential (Outputs & D/O Only)........... -0.5V to+7.0V DC Input Voltage oo... cece sete ceceeseeeseeseesrssesessersesseseaecaeeneats -0.5V to+7.0V DC Output Current... cece ceseneeseessessensseceeecaeeesesessenesacsesusaesensvenes 120mA Power Dissipation... ccc sccecseeecseeesessnesscseesssesessescessssssenessseesaseeeneesees O.SW PI74FCTS521T 8-BIT IDENTITY COMPARATOR Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Characteristics (Over the Operating Range, TA =40C to +85C, VCC =5V+5%) Parameters | Description Test Conditions'" Min. | Typ? | Max. | Units Vou Output HIGH Voltage =| Vcc=Min., ViIN= Vinor VIL lou =-15.0mA 24 3.0 Vv VoL Output LOW Current = | Vcc=Min., Vin= Vinor VIL IoL=48 mA 03 0.50 v VIH Input HIGH Voltage Guaranteed Logic HIGH Level 20 Vv Vi | InputLOW Voltage _| Guaranteed Logic LOW Level - os | Vv nu Input HIGH Current Vec= Max. Vin=Vec l / HA In Input LOW Current Vcc=Max. Vin=GND : -l HA Vik Clamp Diode Voltage Vcc = Min., In=-18 mA -0.7 -12 Vv los ShortCircuitCurrent | Vcc=Max., Vout=GND -60 | -120 mA IorF Power Down Disable Vcc=GND, VouT=4.5V _ _ 100 HA Vu Input Hysteresis 200 mV Capacitance (Ta = 25C, f= | MHz) Parameters Description Test Conditions Typ Max. Units CIN Input Capacitance Vin=0V 6 10 pF Cout Output Capacitance VouT=0V 8 12 pF Notes: |. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is determined by device characterization but is not production tested. 104 PS2019A 03/11/96 (1) PERICOM PI74FCTS521T 8-BIT IDENTITY COMPARATOR Power Supply Characteristics Parameters| Description Test Conditions Min. | Typ?| Max. | Units Icc Quiescent Power Vcc = Max. Vin = GND or Vcc 0.1 500 pA Supply Current Alcc Supply Current per Vcc = Max. Vin = 3.4V 0.5 2.0 mA Input @ TTL HIGH Iccb Supply Current per Vcc = Max., VIN = Vec 0.15 0.25 mA/ Input per MHz) Outputs Open Vin = GND MHz One Input Toggling 50% Duty Cycle Ic Total Power Supply Vcc = Max., VIN = Vec 1.5 3.5 mA Current Outputs Open Vin = GND fi= 10 MHz Vin =3.4V 18 | 45 50% Duty Cycle Vin = GND One Bit Toggling Notes: Aunkwnr Ic = Icc + Alec DHNT + Iccp (fcp/2 + fiND Icc = Quiescent Current Alcc = Power Supply Current for a TTL High Input (Vin = 3.4V) Du = Duty Cycle for TTL Inputs High Nt = Number of TTL Inputs at Du Iccp = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fcr = Clock Frequency for Register Devices (Zero for Non-Register Devices) fi = Input Frequency Ni = Number of Inputs at fi All currents are in milliamps and all frequencies are in megahertz. Switching Characteristics over Operating Range . For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device. . Typical values are at Vcc = 5.0V, +25C ambient. . Per TTL driven input (Vin = 3.4V); all other inputs at Vcc or GND. . This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. . Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested. . Ic =IQutescent + TINPUTS + IDYNAMIC 521T 521AT 21BT 521CT 521DT Com. Com. Com. Com. Com. Parameters Description Conditions' Min Max Min Max | Min Max | Min | Max | Min | Max |Unit tPLH Propagation Delay Cu = 50 pF 15 (0.0 1) 72 LS 5.5 15 45) 15 4.2 | ns tPHL AN or BN to Oa=8 RL=500Q teLH Propagation Delay 15 90 15 6.0 LS 46 15 41 15 38 | ns tPHL Ta=b to Oa= Notes: 1. See Test Circuit and Waveforms 2. Minimum limits are guaranteed but not tested on Propagation Delays. Pericom Semiconductor Corporation 2380 Bering Drive + San Jose, CA 95131 + 1-800-435-2336 Fax (408) 435-1100 + http:/Awww.pericom.com 105 PS2019A 03/11/96