PI74FCT151/2151/251T PI74FCT151T 8-INPUT MULTIPLEXER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74FCT251T Ω (25Ω Series) PI74FCT2151T 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 8-Input Multiplexer Product Features: Product Description: • PI74FCT151/251/2151T is pin compatible with bipolar FAST™ Series at a higher speed and lower power consumption • 25Ω series resistor on all outputs (FCT2xxx Only) • TTL input and output levels • Extremely low static power • Hysteresis on all inputs • Industrial operating temperature range: –40°C to +85°C • Packages available: – 16-pin 150-mil wide plastic QSOP (Q) – 16-pin 300-mil wide plastic SOIC (S) – 16-pin 150-mil wide plastic SOIC (W) 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 PI74FCT151T, PI74FCT251T, and PI74FCT2151T are highspeed 8-input multiplexers. They select one bit from a source of eight under the control of three select inputs. Both assertion and negation outputs are provided. The PI74FCT151/2151T has a common, active-LOW, Enable input (E). When E is LOW, data from one of eight inputs is directed to the complementary outputs based on the 3-bit code applied to the Select (S0-S2) inputs. The PI74FCT151/2151T can be used as a data routing device from one of eight sources. The PI74FCT251T has a common Active-LOW Output Enable (OE) input. When OE is LOW, data from one of eight inputs is directed to the complementary outputs. When OE is HIGH, both outputs are switched to a high-impedance state allowing multiplexer expansion by tying several outputs together. Logic Block Diagram I7 I6 I5 Z I4 Z I3 I2 I1 I0 FCT251 Only S2 S1 S0 E for 151 OE for 251 1 PS2028A 03/11/96 PI74FCT151/2151/251T 8-INPUT MULTIPLEXER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table(1) Product Pin Description Pin Name I0-I7 S0-S2 E OE Z Z GND VCC Description Data Inputs Select Inputs Enable Input (Active LOW) FCT151/2151T Output Enable (Active LOW) FCT251T Data Output Inverted Data Output Ground Power S2 X X L L L L H H H H PI74FCT151/2151T Product Pin Configuration I3 1 16 VCC I2 2 15 I4 I1 3 14 I5 I0 4 13 I6 Z 5 12 I7 Z 6 11 S0 * E or OE 7 10 S1 GND 8 9 S2 16-PIN Q16 S16 W16 S1 X X L L H H L L H H Inputs S0 X X L H L H L H L H Outputs E/OE(2) H H L L L L L L L L Z L(3) Z(4) I0 I1 I2 I3 I4 I5 I6 I7 Z H(3) Z(4) I0 I1 I2 I3 I4 I5 I6 I7 Notes: 1. E for 151/2151, OE for 251. 2. H = High Voltage Level L = Low Voltage Level X = Don’t Care Z = High Impedance 3. 151/2151 ONLY. 4. 251 ONLY. * E for 151/2151 only, OE for 251 only 2 PS2028A 03/11/96 PI74FCT151/2151/251T 8-INPUT MULTIPLEXER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 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%) Test Conditions(1) Parameters Description Min. Typ(2) 2.4 3.0 Max. Units VOH Output HIGH Voltage VCC = Min., VIN = VIH or VIL IOH = –15.0 mA V VOL Output LOW Current VCC = Min., VIN = VIH or VIL IOL = 48 mA 0.3 0.50 V VOL Output LOW Current VCC = Min., VIN = VIH or VIL IOL = 12 mA (25Ω series) 0.3 0.50 V VIH Input HIGH Voltage Guaranteed Logic HIGH Level VIL Input LOW Voltage Guaranteed Logic LOW Level IIH Input HIGH Current VCC = Max. IIL Input LOW Current IOZH High Impedance IOZL Output Current VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA IOS Short Circuit Current VCC = Max.(3), VOUT = GND IOFF Power Down Disable VCC = GND, VOUT = 4.5V VH Input Hysteresis 2.0 V 0.8 V VIN = VCC 1 µA VCC = Max. VIN = GND –1 µA VCC = Max. VOUT = 2.7V 1 µA VOUT = 0.5V –1 µA –1.2 V –0.7 –60 –120 — — mA 100 200 µA mV Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) Description Test Conditions Typ Max. Units CIN Input Capacitance VIN = 0V 6 10 pF COUT Output Capacitance VOUT = 0V 8 12 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 PS2028A 03/11/96 PI74FCT151/2151/251T 8-INPUT MULTIPLEXER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parameters Description Test Conditions(1) Min. Typ(2) Max. Units ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 500 µA ∆ICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.4V(3) 0.5 2.0 mA ICCD Supply Current per Input per MHz(4) VCC = Max., Outputs Open E or OE = GND One Bit Toggling 50% Duty Cycle VIN = VCC VIN = GND 0.15 0.25 mA/ MHz IC Total Power Supply Current(6) VCC = Max., Outputs Open fI = 10 MHZ 50% Duty Cycle E or OE = GND One Bit Toggling VIN = VCC VIN = GND 3.2 6.5(5) mA VIN = 3.4V VIN = GND 3.5 7.5(5) Notes: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 5.0V, +25°C 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. 4 PS2028A 03/11/96 PI74FCT151/2151/251T 8-INPUT MULTIPLEXER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74FCT151/2151T Switching Characteristics over Operating Range 151T/2151T 151AT/2151AT Com. Parameters tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Description Propagation Delay Sn to Z Propagation Delay Sn to Z Propagation Delay E to Z Propagation Delay E to Z Propagation Delay In to Z Propagation Delay In to Z Conditions(1) CL = 50 pF RL = 500Ω 151CT/2151CT Com. Com. Min Max Min Max Min Max Unit 1.5 9.0 1.5 6.6 1.5 5.6 ns 1.5 10.5 1.5 6.8 1.5 5.8 ns 1.5 7.0 1.5 5.6 1.5 4.8 ns 1.5 9.5 1.5 5.8 1.5 5.0 ns 1.5 6.5 1.5 5.2 1.5 4.4 ns 1.5 7.5 1.5 5.5 1.5 4.7 ns PI74FCT251T Switching Characteristics over Operating Range Parameters tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ Description Propagation Delay Sn to Z Propagation Delay Sn to Z Propagation Delay In to Z Propagation Delay In to Z Output Enable Time OE to Z Output Disable Time(3) OE to Z Output Enable Time OE to Z Output Disable Time(3) OE to Z Conditions (1) CL = 50 pF RL = 500Ω 251T 251AT 251CT Com. Com. Com. Min Max Min Max Min Max Unit 1.5 9.0 1.5 6.6 1.5 5.6 ns 1.5 11.0 1.5 6.8 1.5 5.8 ns 1.5 7.0 1.5 5.2 1.5 4.4 ns 1.5 7.0 1.5 5.5 1.5 4.7 ns 1.5 9.0 1.5 6.7 1.5 5.7 ns 1.5 7.5 1.5 6.0 1.5 5.0 ns 1.5 9.0 1.5 6.7 1.5 5.7 ns 1.5 7.0 1.5 6.0 1.5 5.0 ns Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not production tested. Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 5 PS2028A 03/11/96