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| 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT16245T PI74FCT162245T PI74FCT162H245T Fast CMOS 16-Bit Bidirectional Transceivers Product Features Common Features * PI74FCT16245T, PI74FCT162245T and PI74FCT162H245 are high-speed, low-power devices with high-current drive * VCC = 5V 10% * Hysteresis on all inputs * Packages available: - 48-pin 240 mil wide plastic TSSOP (A48) - 48-pin 173 mil wide plastic TVSOP (JEDEC TSSOP K48) - 48-pin 300 mil wide plastic SSOP (V48) PI74FCT16245T Features * High output drive: IOH = -32mA; IOL = 64mA * Power off disable outputs permit "live insertion" * Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25C PI74FCT162245T Features * Balanced output drivers: 24mA * Reduced system switching noise * Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V, TA = 25C PI74FCT162H245T Features * Bus Hold retains last active bus state during Three-State * Eliminates the need for external pull-up resistors Product Description Pericom Semiconductor's PI74FCT series of logic circuits are produced using the Company's advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74FCT16245T, PI74FCT162245T, and PI74FCT162H245T are 16-bit bidirectional transceivers designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Ouput Enable controls are designed to operate these devices as either two independent 8-bit transceivers or one 16-bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. The PI74FCT16245T output buffers are designed with a PowerOff disable allowing "live insertion" of boards when used as backplane drivers. The PI74FCT162245T has 24mA balanced output drivers. It is designed with current limiting resistors at its outputs to control the output edge rate resulting in lower ground bounce and undershoot. This eliminates the need for external terminating resistors for most interface applications. The PI74FCT162H245T has "Bus Hold" which retains the input's last state whenever the input goes to high-impedance preventing "floating" inputs and eliminating the need for pull-up/down resistors. Logic Block Diagram 1DIR 1OE 1A0 1B0 1A1 1B1 1A2 1B2 1A3 1B3 1A4 1B4 1A5 1B5 1A6 1B6 1A7 1B7 2A7 2B7 2A6 2B6 2A5 2B5 2A4 2B4 2A3 2B3 2A2 2B2 2A1 2B1 2A0 2B0 2DIR 2OE 1 PS2032D 05/17/99 Product Pin Description Pin Name xOE xDIR xAx xBx GND VCC Description 3-State Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3-State Outputs (1) Side B Inputs or 3-State Outputs (1) Ground Power 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT16245T/162245T/162H245T Fast CMOS 16-Bit Bidirectional Tranceivers Truth Table Inputs(1) xOE xDIR L L L H H X Outputs(1) Bus B Data to Bus A Bus A Data to Bus B High Z State Note: 1. For the PI74FCT162H245T, these pins have "Bus Hold." All other pins are standard, outputs, or I/Os. Note: 1. H = High Voltage Level, X = Don't Care, L = Low Voltage Level, Z = High Impedance Product Pin Configuration 48-Pin V48 A48 K48 2 PS2032D 05/17/99 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT16245T/162245T/162H245T Fast CMOS 16-Bit Bidirectional Tranceivers 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 to +7.0V DC Input Voltage .................................................................. -0.5V to +7.0V DC Output Current ............................................................................. 120mA Power Dissipation ................................................................................... 1.0W 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 = 5.0V 10%) Parameters VIH VIL IIH IIH IIH IIH IIL IIL IIL IIL IBHH IBHL IOZH(5) IOZL(5) VIK IOS IO VH Description Input HIGH Voltage Input LOW Voltage Input HIGH Current Input HIGH Current Input HIGH Current Input HIGH Current Input LOW Current Input LOW Current Input LOW Current Input LOW Current Bus Hold Sustain Current High Impedance Output Current Clamp Diode Voltage Short Circuit Current Output Drive Current Input Hysteresis Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level Standard Input, VCC = Max. Standard I/O, VCC = Max. Bus Hold Input(4), VCC = Max. Bus Hold I/O(4), VCC = Max. Standard Input, VCC = Min. Standard I/O, VCC = Min. Bus Hold Input(4), VCC = Min. Bus Hold I/O(4), VCC = Min. Bus Hold Input(4), VCC = Min. VCC = Max. VCC = Max. VCC = Min., IIN = -18mA VCC = Max.(3), VOUT = GND VCC = Max.(3), VOUT = 2.5V Min. 2.0 VIN = VCC VIN = VCC VIN = VCC VIN = VCC VIN = GND VIN = GND VIN = GND VIN = GND VIN = 2.0V VIN = 0.8V VOUT = 2.7V VOUT = 0.5V 0.8 1 1 100 100 -1 -1 100 100 -50 +50 1 -1 -1.2 -200 -180 Typ.(2) Max. Units V V A A A A A A A A A A A V mA mA mV -80 -50 -0.7 -140 100 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, +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. Pins with Bus Hold are identified in the pin description. 5. This specification does not apply to bi-directional functionalities with Bus Hold. 3 PS2032D 05/17/99 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT16245T/162245T/162H245T Fast CMOS 16-Bit Bidirectional Tranceivers PI74FCT16245T Output Drive Characteristics (Over the Operating Range) Parameters VOH Description Output HIGH Voltage Test Conditions(1) VCC = Min., VIN = VIH or VIL IOH = -3.0mA IOH = -15.0mA IOH = -32.0mA IOL = 64mA Min. 2.5 2.4 2.0 -- Typ.(2) 3.5 3.5 3.0 0.2 -- Max. Units V VOL IOFF Output LOW Voltage Power Down Disable VCC = Min., VIN = VIH or VIL VCC = 0V, VIN or VOUT 4.5V 0.55 100 V A PI74FCT162245T/162H245T Output Drive Characteristics (Over the Operating Range) Parameters Description VOH VOL IODL IODH Output HIGH Voltage Output LOW Voltage Output LOW Current Output HIGH Current Test Conditions(1) VCC = Min., VIN = VIH or VIL IOH = -24.0mA VCC = Min., VIN = VIH or VIL IOL = 24mA VCC = 5V, VIN = VIH OR VIL, VOUT = 1.5V(3) VCC = 5V, VIN = VIH OR VIL, VOUT = 1.5V(3) Min. 2.4 60 -60 Typ.(2) 3.3 0.3 115 -115 Max. 0.55 150 -150 Units V V mA mA Capacitance (TA = 25C, f = 1 MHz) Parameters(4) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ. 4.5 5.5 Max. 6 8 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, +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. 4 PS2032D 05/17/99 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT16245T/162245T/162H245T Fast CMOS 16-Bit Bidirectional Tranceivers 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) Test Conditions(1) VCC = Max. VCC = Max. VCC = Max., Outputs Open XOE = xDIR = GND One Bit Toggling 50% Duty Cycle VCC = Max., Outputs Open fI = 10 MHZ 50% Duty Cycle XOE = xDIR = GND One Bit Toggling VCC = Max., Outputs Open fI = 2.5 MHZ 50% Duty Cycle XOE = xDIR = GND 16 Bits Toggling VIN = GND or VCC VIN = 3.4V(3) VIN = VCC VIN = GND Min. Typ.(2) 0.1 0.5 60 Max. 500 1.5 100 Units A mA A/ MHz IC Total Power Supply Current(6) VIN = VCC VIN = GND 0.7 2.5(5) mA VIN = 3.4V VIN = GND VIN = VCC VIN = GND 0.9 2.5 3.3(5) 5.5(5) VIN = 3.4V VIN = GND 6.5 17.5(5) 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. 5 PS2032D 05/17/99 Notes: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not production tested. 4. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design. Pericom Semiconductor Corporation 2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com 6 PS2032D 05/17/99 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 PI74FCT16245T/162245T/162H245T Fast CMOS 16-Bit Bidirectional Tranceivers 16245CT Com. 1.5 1.5 1.5 1.5 1.5 -- 4.1 5.8 4.8 5.8 4.8 0.5 16245DT Com. 1.5 1.5 1.5 1.5 1.5 -- 3.8 5.0 4.3 5.0 4.3 0.5 16245ET Com. 1.5 1.5 1.5 1.5 1.5 -- 3.2 4.4 4.0 4.8 4.0 0.5 ns ns ns ns ns ns PI74FCT16245T Switching Characteristics over Operating Range 16245T Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ tSK(o) Description Propagation Delay(2) A TO B, B TO A Output Enable Time XOE to A OR B Output Disable Time(3) XOE to A OR B Output Enable Time (3) XDIR to A OR B Output Disable Time (3) XDIR to A OR B Output Skew(4) Conditions CL = 50pF RL = 500 (1) 16245AT Com. 1.5 1.5 1.5 1.5 1.5 -- 4.6 6.2 5.0 6.2 5.0 0.5 Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Units 1.5 1.5 1.5 1.5 1.5 -- 7.0 9.5 7.5 9.5 7.5 0.5 PI74FCT162245T Switching Characteristics over Operating Range 162245T Com. (1) 162245AT Com. Min. Max. 162245CT Com. Min. Max. 162245DT Com. Min. Max. 162245ET Com. Min. Max. Units Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ tSK(o) Description Propagation Delay(2) A TO B, B TO A Output Enable Time XOE to A OR B Output Disable Time(3) XOE to A OR B Output Enable Time (3) XDIR to A OR B Output Disable Time (3) XDIR to A OR B Output Skew(4) Conditions CL = 50pF RL = 500 Min. Max. 1.5 1.5 1.5 1.5 1.5 -- 7.0 9.5 7.5 9.5 7.5 0.5 1.5 1.5 1.5 1.5 1.5 -- 4.6 6.2 5.0 6.2 5.0 0.5 1.5 1.5 1.5 1.5 1.5 -- 4.1 5.8 4.8 5.8 4.8 0.5 1.5 1.5 1.5 1.5 1.5 -- 3.8 5.0 4.3 5.0 4.3 0.5 1.5 1.5 1.5 1.5 1.5 -- 3.2 4.4 4.0 4.8 4.0 0.5 ns ns ns ns ns ns PI74FCT162H245T Switching Characteristics over Operating Range 162245T Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ tSK(o) Description Propagation Delay(2) A TO B, B TO A Output Enable Time XOE to A OR B Output Disable Time(3) XOE to A OR B Output Enable Time (3) XDIR to A OR B Output Disable Time (3) XDIR to A OR B Output Skew(4) Conditions CL = 50pF RL = 500 (1) 162245AT 162245CT 162245DT 162245ET Com. Min. Max. Com. Min. Max. Com. Min. Max. Com. Min. Max. Units Min. Max. 1.5 1.5 1.5 1.5 1.5 -- 7.0 9.5 7.5 9.5 7.5 0.5 1.5 1.5 1.5 1.5 1.5 -- 4.6 6.2 5.0 6.2 5.0 0.5 1.5 1.5 1.5 1.5 1.5 -- 4.1 5.8 4.8 5.8 4.8 0.5 1.5 1.5 1.5 1.5 1.5 -- 3.8 5.0 4.3 5.0 4.3 0.5 1.5 1.5 1.5 1.5 1.5 -- 3.2 4.4 4.0 4.8 4.0 0.5 ns ns ns ns ns ns |
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