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| 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT280T 9-BIT PARITY GENERATOR/CHECKER PI74FCT280T 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 Product Features: * PI74FCT280T is pin compatible with bipolar FASTTM 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: -40C to +85C * Packages available: - 14-pin 150 mil wide SOIC (W) - 16-pin 150 mil wide QSOP (Q) Fast CMOS 9-Bit Parity Generator/Checker Product Description: Pericom Semiconductor's PI74FCT series of logic circuits are produced in the Company's advanced 0.8 micron CMOS technology, achieving industry leading speed grades. The PI74FCT280T is a high-speed CMOS TTL-compatible 9-bit parity generator-checkers. Both odd and even parity outputs are available for generating or checking odd or even parity. Logic Block Diagram I0 I1 I2 I3 I4 I5 I6 I7 e o I8 1 PS2014A 03/11/96 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT280T 9-BIT PARITY GENERATOR/CHECKER PI74FCT280T 14-Pin SOIC Configuration I6 I7 NC I8 e o GND 1 2 3 4 5 6 7 14 13 Product Pin Description Pin Name I8-I0 e o GND VCC Description Data In Even Parity Out Odd Parity Out Ground Power 14-PIN 12 W14 11 10 9 8 VCC I5 I4 I3 I2 I1 I0 Truth Table(1) PI74FCT280T 16-Pin QSOP Configuration Function I6 I7 NC I8 e o NC GND 1 2 3 4 5 6 7 8 16 15 14 Inputs Outputs I8-I0 No. of Bits at TTL High = 0, 2, 4, 6, 8 No. of Bits at TTL High = 1, 3, 5, 7, 9 16-PIN 13 Q16 12 11 10 9 VCC I5 I4 I3 I2 I1 I0 NC Even Parity Odd Parity e H L o L H Note: 1. H = High Voltage Level L = Low Voltage Level Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ................................................................. -65C to +150C Ambient Temperature with Power Applied ................................. -40C to +85C Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... -0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) ........... -0.5V +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. Capacitance (TA = 25C, f = 1 MHz) Parameters(1) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ 6 8 Max. 10 12 Units pF pF Notes: 1. This parameter is determined by device characterization but is not production tested. 2 PS2014A 03/11/96 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT280T 9-BIT PARITY GENERATOR/CHECKER DC Electrical Characteristics (Over the Operating Range, TA = -40C to +85C, 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. , VOUT = GND VCC = GND, VOUT = 4.5V (3) Min IOH = -15.0 mA IOL = 48 mA 2.0 2.4 Typ(2) 3.0 0.3 Max Units V 0.50 V V 0.8 VIN = VCC VIN = GND -0.7 -60 -- -120 -- 200 100 1 -1 -1.2 V A A V mA A mV Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for 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. Switching Characteristics over Operating Range 280T Com. Min Max 3.0 3.0 10.0 10.0 280AT Com. Min Max 3.0 3.0 7.5 7.5 280BT Com. Min Max 3.0 3.0 6.3 6.3 280CT Com. Min Max 3.0 3.0 5.3 5.3 Parameters Description tPHLE tPLHE tPHLO tPLHO Conditions(1) Unit ns ns Propagation Delay CL = 50 pF I0 - I8 to even RL = 500 Propagation Delay I0 - I8 to odd Notes: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3 PS2014A 03/11/96 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT280T 9-BIT PARITY GENERATOR/CHECKER Power Supply Characteristics Parameters Description ICC ICC ICCD Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Supply Current per Input per MHz(4) VCC = Max. VCC = Max. VCC = Max., Outputs Open One Input Toggling 50% Duty Cycle VCC = Max., Outputs Open fCP = 10 MHZ 50% Duty Cycle fI = 5 MHZ One Bit Toggling VCC = Max., Outputs Open fCP = 10 MHZ 50% Duty Cycle Nine Bits Toggling fI = 2.5 MHZ 50% Duty Cycle Test Conditions(1) VIN = GND or VCC VIN = 3.4V(3) VIN = VCC VIN = GND Min. Typ(2) 0.1 Max. 500 2.0 0.25 Units A mA mA/ MHz IC Total Power Supply Current(6) VIN = VCC VIN = GND VIN = 3.4V VIN = GND VIN = VCC VIN = GND VIN = 3.4V VIN = GND 1.7 4.0(5) 6.0(5) mA 2.2 4.0 7.8(5) 16.8(5) 6.2 Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested. 6. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCP/2 + fINI) ICC = Quiescent Current ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = 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. Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com 4 PS2014A 03/11/96 |
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