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Details, datasheet, quote on part number:PI74FCT521TL
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Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT521T 8-Bit Identity Comparator
PI74FCT521T
Product Features
Fast CMOS 8-Bit Identity Comparator
PI74FCT521T is pin compatible with bipolar FAST Series at a higher speed and lower power consumption TTL input and output levels Extremely low static power Hysteresis on all inputs Industrial operating temperature range: 40°C to +85°C Packages available: 20-pin 209 mil wide plastic SSOP (H) 20-pin 173 mil wide plastic TSSOP (L) 20-pin 300 mil wide plastic DIP (P) 20-pin 150 mil wide plastic QSOP (Q) 20-pin 150 mil wide plastic TQSOP (R) 20-pin 300 mil wide plastic SOIC (S)
Product Description
Pericom Semiconductors PI74FCT series of logic circuits are produced in the Companys advanced 0.8 micron CMOS technology, achieving industry leading speed grades. The PI74FCT521T 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 IA=B also serves as an active LOW enable input.
Logic Block Diagram
A0 B0
A1 B1
A2 B2
A3 B3
OA=B
A4 B4
A5 B5
A6 B6
A7 B7
I A=B
1
PS2019B
07/02/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT521T 8-Bit Identity Comparator
Product Pin Description
Pin Name IA=B OA=B A0A7 B0B7 GND VC C Description Expansion or Enable Input (Active LOW) Identity Output (Active LOW) Word A Inputs Word B Inputs Ground Power
Truth Table(1)
Inputs IA=B L L H H A, B A = B* AB A = B* AB Output OA=B L H H H
Product Pin Configuration
IA=B A0 B0 A1 B1 A2 B2 A3 B3 GND
1 2 3 20-Pin 4 L,P,Q, 5 R,S,H 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11
NOTE: 1. H = High Voltage Level L = Low Voltage Level, * A0 = B0, A1 = B1, A2 = B2, etc.
Vcc OA = B B7 A7 B6 A6 B5 A5 B4 A4
2
PS2019B
07/02/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT521T 8-Bit Identity Comparator
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ........... 65°C to +150°C Ambient Temperature with Power Applied .... - 40°C to +85°C Supply Voltage to Ground Potential (Inputs & Vcc Only) ..... 0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) .. 0.5V to +7.0V DC Input Voltage .......... 0.5V to +7.0V DC Output Current .... 120 mA Power Dissipation ......... 0.5W 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 = 40°C to +85°C, VCC = 5V ± 5%)
Parameters Description VOH VOL VIH VIL IIH IIL VIK IOS IOFF VH Output HIGH Voltage Output LOW Current Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current Clamp Diode Voltage Short Circuit Current Power Down Disable Input Hysteresis Test Conditions(1) VCC = Min., VIN = VIH or VIL VCC = Min., VIN = VIH or VIL Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VCC = Max. VCC = Min., IIN = 18 mA VCC = Max.(3), VOUT = GND VCC = GND, VOUT = 4.5V 60 VIN = VCC VIN = GND 0.7 120 200 100 IOH = 15.0 mA IOL = 48 mA 2.0 0.8 1 1 1.2 Min. 2.4 Typ(2) 3.0 0.3 0.50 Max. Units V V V V µA µA V mA µA m V
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ 6 8 Max. 10 12 Units pF pF
Notes: 1. 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, +25°C 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.
3
PS2019B
07/02/02
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