PI74FCT646T/648T/651T/652T Ω Series PI74FCT2646T/2652T (25Ω 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS Octal Registered Transceivers Product Description Product Features Pericom Semiconductors PI74FCT series of logic circuits are produced using the Companys advanced 0.6/0.8 micron CMOS technology, achieving industry leading speed grades. All PI74FCT2XXX devices have a built-in 25-ohm series resistor on all outputs to reduce noise because of reflections, thus eliminating the need for an external terminating resistor. The PI74FCT646T/648T/651T/652T and PI74FCT2646T/2652T are designed with a bus transceiver with 3-state D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. The PI74FCT651/652T/2652T utilize GAB and GBA signals to control the transceiver functions. The PI74FCT646/2646T/648T use the enable control (G) and direction pins (DIR) to control the transceiver functions. SAB and SBA control pins are used to select either realtime or stored data transfer. The circuitry used for select control will eliminate the typical decoding glitch that occurs in a multiplexer during the transition between real-time and stored data. A low input level selects real-time data and a high selects stored data. The PI74FCT646T is a non-inverting option of the PI74FCT648T. The PI74FCT652T is a non-inverting option of the PI74FCT651T. PI74FCT646T/648T/651T/652T/2646T/2652T 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 Low ground bounce outputs Extremely low static power Hysteresis on all inputs Industrial operating temperature range: 40°C to +85°C Packages available: 24-pin 300 mil wide plastic DIP (P) 24-pin 150 mil wide plastic QSOP (Q) 24-pin 150 mil wide plastic TQSOP (R) 24-pin 300 mil wide plastic SOIC (S) Device models available upon request Logic Block Diagram PI74FCT651/652 ONLY GBA GAB PI74FCT646/648 ONLY G DIR CPBA SBA CPAB SAB B REG 1 OR 8 CHANNELS 0D C0 B0 A REG A0 0D PI74FCT651/652 ONLY 646/652 ONLY C0 646/652 ONLY TO 7 OTHER CHANNELS 1 PS2022A 03/11/96 PI74FCT646/648/651/652T (25Ω Ω Series) P174FCT2646T/2652T Octal Registered Transceivers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74FCT646/648T Product Pin Configuration CPAB 1 24 Vcc CPBA SAB 2 23 CPBA SBA GAB 3 22 SBA G A0 4 21 GBA 20 B0 A1 5 19 B1 A2 6 18 B2 A3 7 17 B3 A4 8 16 B4 A5 A6 CPAB 1 24 Vcc SAB 2 23 DIR 3 22 A0 4 21 A1 5 A2 6 A3 7 A4 8 A5 9 24-PIN P24 Q24 R24 S24 PI74FCT651/652T Product Pin Configuration 24-PIN P24 Q24 R24 S24 20 B0 19 B1 18 B2 17 B3 9 16 B4 10 15 B5 A6 10 15 B5 A7 11 14 B6 A7 11 14 B6 GND 12 13 B7 GND 12 13 B7 Product Pin Description Pin Name A0-A7 B0-B7 CPAB, CPBA SAB, SBA DIR, G GAB, GBA GND VCC Description Data Register A Inputs Data Register B Outputs Data Register B Inputs Data Register A Outputs Clock Pulse Inputs Output Data Source Select Inputs Output Enable Inputs (646/648/2646) Output Enable Inputs (651/652/2652) Ground Power PI74FCT646/648/2646T Truth Table PI74FCT646/2646T Function/Operation Isolation Store A and B Data Real Time B Data to A Bus Stored B Data to A Bus Real Time A Data to B Bus Stored A Data to B Bus PI74FCT648T Function/Operation Isolation Store A and B Data Real Time B Data to A Bus Stored B Data to A Bus Real Time A Data to B Bus Stored A Data to B Bus DATA I/O(2) Inputs G H H L L L L DIR X X L L H H CPAB CPBA SAB H or L H or L X ↑ ↑ X X X X X H or L X X X L H or L X H SBA X X L H X X A0-A7 Input B0-B7 Input Output Input Input Output PI74FCT651/652/2652T Truth Table PI74FCT651T Function/Operation Isolation Store A and B Data Store A, Hold B Store A in Both Registers(3) Hold A, Store B Store B in Both Registers(4) Real Time B Data to A Bus Stored B Data to A Bus Real Time A Data to B Bus Stored A Data to B Bus Stored A Data to B Bus and Stored B Data to A Bus 1. 2. 3. 4. 3. 4. PI74FCT652/2652T Function/Operation GAB Isolation L Store A and B Data L Store A, Hold B X Store A in Both Registers H Hold A, Store B L Store B in Both Registers L Real Time B Data to A Bus L Stored B Data to A Bus L Real Time A Data to B Bus H Stored A Data to B Bus H Stored A Data to B Bus and H Stored B Data to A Bus DATA I/O(2) Inputs GBA H H H H X L L L H H L CPAB H or L ↑ ↑ ↑ H or L ↑ X X X H or L H or L CPBA SAB H or L X ↑ X H or L X ↑ X(2) ↑ X ↑ X X X H or L X X L X H H or L H SBA A0-A7 B0-B7 X Input Input X X Input Unspecified(1) X Input Output (1) X Unspecified Input X(2) Output Input L Output Input H X Input Output X H Output Output The data output functions may be enabled or disabled by various signals at the GAB or GBA inputs. Data input functions are always enabled, i.e., data at the bus pins will be stored on every low-to-high transition on the clock inputs. Select control = L: clocks can occur simultaneously. Select control = H: clocks must be staggered in order to load both registers. A in B Register B in A RegisterHIGH transition A in B Register. B in A Register. 2 PS2022A 03/11/96 PI74FCT646/648/651/652T (25Ω Ω Series) P174FCT2646T/2652T Octal Registered Transceivers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 REAL-TIME TRANSFER BUS A TO B REAL-TIME TRANSFER BUS B TO A BUS BUS BUS BUS A B A B G L CPAB CPBA X X SAB X SBA L 646/648/ 2646 CPAB CPBA X X SAB L SBA X 651/652/ GAB GBA CPAB CPBA 2652 L L X X SAB X SBA L 651/652/ GAB GBA CPAB CPBA 2652 H H X X SAB L SBA X CPAB CPBA X H or L H or L X SAB X H SBA H X 651/652/ GAB GBA CPAB CPBA 2652 H L H or L H or L SAB H SBA H 646/648/ 2646 DIR L DIR H STORAGE FROM A AND/OR B G L TRANSFER STORES DATA TO A AND/OR B BUS BUS BUS BUS A B A B G L L H CPAB CPBA ↑ X X ↑ ↑ ↑ SAB X X X SBA X X X 651/652/ GAB GBA CPAB CPBA 2652 X H ↑ X L X X ↑ L H ↑ ↑ SAB X X X SBA X X X 646/648/ 2646 DIR H L X 646/648(1) DIR 2646 L H G L L 1. Note: The FCT646/2646 cannot transfer data to A bus and B bus simultaneously. 3 PS2022A 03/11/96 PI74FCT646/648/651/652T (25Ω Ω Series) P174FCT2646T/2652T Octal Registered Transceivers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 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 = 5.0V ± 5%) Parameters Description Test Conditions(1) Min. Typ(2) Max. Units VOH Output HIGH Voltage VCC = Min., VIN = VIH or VIL IOH = 15.0 mA 2.4 3.0 V VOL Output LOW Current VCC = Min., VIN = VIH or VIL IOL = 64 mA 0.3 0.55 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 IOFF Power Down Disable VCC = GND, VOUT = 4.5V IOS Short Circuit Current (3) 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 0.7 1.2 V 100 µA 60 120 mA 200 mV VCC = Max. , VOUT = GND 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. 4 PS2022A 03/11/96 PI74FCT646/648/651/652T (25Ω Ω Series) P174FCT2646T/2652T Octal Registered Transceivers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Test Conditions(1) Parameters Description 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 G = DIR = GND or GAB = GBA = GND One Input Toggling 50% Duty Cycle VIN = VCC VIN = GND 0.15 0.25 mA/ MHz IC Total Power Supply Current(6) VCC = Max., Outputs Open fCP = 10 MHZ 50% Duty Cycle G = DIR = GND or GAB = GBA = GND fI = 5 MHZ One Bit Toggling VCC = Max., Outputs Open fCP = 10 MHZ 50% Duty Cycle G = DIR = GND or GAB = GBA = GND Eight Bits Toggling fI = 2.5 MHZ 50% Duty Cycle VIN = VCC VIN = GND 1.5 3.5(5) mA VIN = 3.4V VIN = GND 2.0 5.5(5) VIN = VCC VIN = GND 3.8 7.3(5) VIN = 3.4V VIN = GND 6.0 16.3(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. 5 PS2022A 03/11/96 PI74FCT646/648/651/652T (25Ω Ω Series) P174FCT2646T/2652T Octal Registered Transceivers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74FCT646/2646T Switching Characteristics over Operating Range 646T/2646T 646AT/2646AT Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPLH tPHL tSU tH tW Description Propagation Delay Bus to Bus Output Enable Time G, DIR to Bus Output Disable Time(3) G, DIR to Bus Propagation Delay Clock to Bus Propagation Delay SBA or SAB to Bus Setup Time HIGH or LOW, BUS to Clock Hold Time HIGH or LOW, Bus to Clock Clock Pulse Width(3) HIGH or LOW 646CT Com. 646DT Com. Com. Conditions(1) Min Max Min Max Min Max Min Max Unit CL = 50 pF RL = 500Ω 2.0 7.5 2.0 6.3 1.5 5.4 1.5 4.8 ns 2.0 14.0 2.0 9.8 1.5 7.8 1.5 7.3 ns 2.0 9.0 2.0 6.3 1.5 6.3 1.5 6.3 ns 2.0 9.0 2.0 6.3 1.5 5.7 1.5 5.2 ns 2.0 9.5 2.0 7.7 1.5 6.2 1.5 5.8 ns 4.0 2.0 2.0 2.0 ns 2.0 1.5 1.5 1.5 ns 6.0 5.0 5.0 5.0 ns PI74FCT648T Switching Characteristics over Operating Range 648T 648AT Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPLH tPHL tSU tH tW Description Propagation Delay Bus to Bus Output Enable Time G, DIR to Bus Output Disable Time(3) G, DIR to Bus Propagation Delay Clock to Bus Propagation Delay SBA or SAB to Bus Setup Time HIGH or LOW, BUS to Clock Hold Time HIGH or LOW, Bus to Clock Clock Pulse Width(3) HIGH or LOW 648CT Com. 648DT Com. Com. Conditions(1) Min Max Min Max Min Max Min Max Unit CL = 50 pF RL = 500Ω 2.0 7.5 2.0 6.3 1.5 5.4 1.5 4.8 ns 2.0 14.0 2.0 9.8 1.5 7.8 1.5 7.3 ns 2.0 9.0 2.0 6.3 1.5 6.3 1.5 6.3 ns 2.0 9.0 2.0 6.3 1.5 5.7 1.5 5.2 ns 2.0 9.5 2.0 7.7 1.5 6.2 1.5 5.8 ns 4.0 2.0 2.0 2.0 ns 2.0 1.5 1.5 1.5 ns 6.0 5.0 5.0 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 guaranteed but not production tested. 6 PS2022A 03/11/96 PI74FCT646/648/651/652T (25Ω Ω Series) P174FCT2646T/2652T Octal Registered Transceivers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74FCT651T Switching Characteristics over Operating Range Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPLH tPHL tSU tH tW 651T 651AT 651CT 651DT Com. Com. Com. Com. Description Conditions Min Max Min Max Min Max Min Max Unit Propagation Delay Bus to Bus Output Enable Time GBA, GAB to Bus Output Disable Time(3) GBA, GAB to Bus Propagation Delay Clock to Bus Propagation Delay SBA or SAB to Bus Setup Time HIGH or LOW, BUS to Clock Hold Time HIGH or LOW, Bus to Clock Clock Pulse Width(3) HIGH or LOW CL = 50 pF RL = 500Ω 2.0 9.0 2.0 6.3 1.5 5.4 1.5 4.8 ns 2.0 12.5 2.0 9.8 1.5 7.8 1.5 7.3 ns 2.0 9.0 2.0 6.3 1.5 6.3 1.5 6.0 ns 2.0 9.0 2.0 6.3 1.5 5.7 1.5 5.2 ns 2.0 9.5 2.0 7.7 1.5 6.2 1.5 5.8 ns 4.0 2.0 2.0 2.0 ns 2.0 1.5 1.5 1.5 ns 6.0 5.0 5.0 5.0 ns (1) PI74FCT652/2652T Switching Characteristics over Operating Range Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPLH tPHL tSU tH tW 652T/2652T 652AT/2652AT 652CT 652DT Com. Com. Com. Com. Description Conditions Min Max Min Max Min Max Min Max Unit Propagation Delay Bus to Bus Output Enable Time GBA, GAB to Bus Output Disable Time(3) GBA, GAB to Bus Propagation Delay Clock to Bus Propagation Delay SBA or SAB to Bus Setup Time HIGH or LOW, BUS to Clock Hold Time HIGH or LOW, Bus to Clock Clock Pulse Width(3) HIGH or LOW CL = 50 pF RL = 500Ω 2.0 9.0 2.0 6.3 1.5 5.4 1.5 4.8 ns 2.0 12.5 2.0 9.8 1.5 7.8 1.5 7.3 ns 2.0 9.0 2.0 6.3 1.5 6.3 1.5 6.0 ns 2.0 9.0 2.0 6.3 1.5 5.7 1.5 5.2 ns 2.0 9.5 2.0 7.7 1.5 6.2 1.5 5.8 ns 4.0 2.0 2.0 2.0 ns 2.0 1.5 1.5 1.5 ns 6.0 5.0 5.0 5.0 ns (1) 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 7 PS2022A 03/11/96