PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Transceivers Features Description Common Features • PI74FCT16245T and PI74FCT162245T are high-speed, lowpower devices with high-current drive • VCC = 5V ±10% • Hysteresis on all inputs 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 = 25°C • Packaging (Pb-free & Green): – 48-pin 240-mil wide plastic TSSOP (A) – 48-pin 300-mil wide plastic SSOP (V) PI74FCT162245T Features • Balanced output drivers: ±24mA • Reduced system switching noise • Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V, TA = 25°C • Packaging (Pb-free & Green): – 48-pin 240-mil wide plastic TSSOP (A) – 48-pin 300-mil wide plastic SSOP (V) Pericom Semiconductor’s PI74FCT16245T and PI74FCT162245T are 16-bit bidirectional transceivers designed for asynchronous twoway 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 8bit transceivers or one 16-bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in Hi-Z condition. The PI74FCT16245T output buffers are designed with a power off 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. Block Diagram 1DIR 2DIR 1OE 2OE 1A0 2A0 1B0 2B0 1A1 2A1 1B1 2B1 1A2 2A2 1B2 2B2 1A3 2A3 1B3 2B3 1A4 2A4 1B4 2B4 1A5 2A5 1B5 2B5 1A6 2A6 1B6 2B6 1A7 2A7 1B7 11-0005 2B7 1 PS2032L 07/29/10 PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Tranceivers 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................................................................................ 120mA Power Dissipation.................................................................................... 1.0W Pin Configuration 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. Truth Table Inputs(1) 1DIR 1 4 1OE 1B0 2 47 1A0 1B1 3 46 1A1 GND 4 45 GND 1B2 5 44 1A2 1B3 6 43 1A3 VCC 7 42 VCC 41 1A4 1B4 40 1A5 GND 1B5 10 3 GND 1B6 11 3 1A6 1B7 12 37 1A7 2B0 13 36 2A0 2B1 14 35 2A1 GND 15 34 GND 2B2 16 33 2A2 2B3 17 32 VCC 1 2B4 2B5 Outputs(1) XOE XDIR L L Bus B Data to Bus A L H Bus A Data to Bus B H X High Z State Note: 1. H = High Voltage Level, X = Don’t Care, L = Low Voltage Level, Z = High Impedance Pin Description Pin Name Description XOE 3-State Enable Inputs (Active LOW) XDIR Direction Control Input XA X Side A Inputs or 3-State Outputs XBX Side B Inputs or 3-State Outputs 2A3 GND Ground 31 VCC VCC Power 1 30 2A4 20 2 2A5 GND 21 2 GND 2B6 22 27 2A6 2B7 23 26 2A7 2DIR 24 25 2OE 11-0005 2 PS2032L 07/29/10 PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Tranceivers DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5.0V ±10%) Parameters Test Conditions(1) Description VIH Input HIGH Voltage Guaranteed Logic HIGH Level VIL Input LOW Voltage Guaranteed Logic LOW Level IIH Input HIGH Current IIL Input LOW Current Min. Typ.(2) Max. 2.0 0.8 Standard Input, VCC = Max. VIN = VCC 1 Standard I/O, VCC = Max. VIN = VCC 1 Standard Input, VCC = Min. VIN = GND –1 Standard I/O, VCC = Min. VIN = GND –1 IOZH High Impedance VCC = Max. VOUT = 2.7V 1 IOZL Output Current VCC = Max. VOUT = 0.5V –1 VIK Clamp Diode Voltage VCC = Min., IIN = –18mA IOS Short Circuit Current IO Output Drive Current VH Input Hysteresis VCC = VCC = Max.(3), V Max.(3), V OUT = GND –80 OUT = 2.5V –50 –0.7 –1.2 –140 –300 –180 100 Units V µA V mA mV 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. PI74FCT16245T Output Drive Characteristics (Over the Operating Range) Parameters VOH Description Output HIGH Voltage Test Conditions(1) VCC = Min., VIN = VIH or VIL Min. Typ.(2) IOH = –3.0mA 2.5 3.5 IOH = –15.0mA 2.4 3.5 Max. V IOH = –32.0mA VOL Output LOW Voltage VCC = Min., VIN = VIH or VIL IOFF Power Down Disable VCC = 0V, VIN or VOUT ≤ 4.5V IOL = 64mA 0.2 Units 0.55 ±100 µA Max. Units 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. PI74FCT162245T Output Drive Characteristics (Over the Operating Range) Parameters Description Test Conditions(1) VOH Output HIGH Voltage VCC = Min., VIN = VIH or VIL IOH = –24.0mA VOL Output LOW Voltage VCC = Min., VIN = VIH or VIL IOL = 24mA IODL Output LOW Current IODH Output HIGH Current Min. Typ.(2) 2.4 3.3 0.3 0.55 VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) 60 115 160 VCC = 5V, VIN = VIH or VIL, VOUT = –60 –115 –150 1.5V(3) V mA 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. 11-0005 3 PS2032L 07/29/10 PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Tranceivers Capacitance (Ta = 25°C, f = 1 MHz) Parameters CIN COUT Test Conditions(1) Description Typ.(2) Max. Input Capacitance VIN = 0V 4.5 6 Output Capacitance VOUT = 0V 5.5 8 Units pF 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, +25°C ambient. Power Supply Characteristics Parameters ICC ΔICC ICCD IC Description Test Conditions(1) Min. Typ.(2) Max. Units Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 500 µA Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.4V(3) 0.5 1.5 mA Supply Current per Input per MHz(4) VCC = Max., Outputs Open xOE = xDIR = GND One Bit Toggling 50% Duty Cycle VIN = VCC, VIN = GND 60 100 µA/ MHz VCC = Max., Outputs Open fi = 10 MHz 50% Duty Cycle xOE = xDIR = GND One Bit Toggling VIN = VCC, VIN = GND 0.7 2.5(5) VIN = 3.4V 0.9 VCC = Max., Outputs Open fi = 2.5 MHz 50% Duty Cycle xOE = xDIR = GND 16 Bits Toggling VIN = VCC, VIN = GND 2.5 VIN = 3.4V 6.5 Total Power Supply Current(6) 3.3(5) mA 5.5(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, +25°C ambient. 3. Per TTL driven input (VIN = 3.4V); all other inputs at VCC or GND. 4. Guaranteed by design, not production tested. 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 + ΔICC DhNt + ICCD (fcp/2 + fiNi) ICC = Quiescent Current ΔICC = 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. 11-0005 4 PS2032L 07/29/10 PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Tranceivers PI74FCT16245T Switching Characteristics over Operating Range Parameters Description 16245T 16245AT 16245CT Com. Com. Com. Conditions(1) Units Min. Max. Min. Max. Min. Max. tPHL tPHL Propagation Delay(2) A to B, B to A 1.5 7.0 1.5 4.6 1.5 4.1 ns tPZH tPZL Output Enable Time xOE to A or B 1.5 9.5 1.5 6.2 1.5 5.8 ns 1.5 7.5 1.5 5.0 1.5 4.8 ns 1.5 9.5 1.5 6.2 1.5 5.8 ns 1.5 7.5 1.5 5.0 1.5 4.8 ns 0.5 ns tPHZ tPLZ Output Disable Time(3) xOE to A or B tPZH tPZL Output Enable Time (3) xDIR to A or B tPHZ tPLZ Output Disable Time (3) xDIR to A or B CL = 50pF RL = 500Ω Output Skew(4) tsk(o) 0.5 0.5 Notes: 1. For Max or Min conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 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. PI74FCT162245T Switching Characteristics over Operating Range Parameters Description 162245T 162245AT 162245CT Com. Com. Com. Conditions(1) Units Min. Max. Min. Max. Min. Max. tPHL tPHL Propagation Delay(2) A to B, B to A 1.5 7.0 1.5 4.6 1.5 4.1 ns tPZH tPZL Output Enable Time xOE to A or B 1.5 9.5 1.5 6.2 1.5 5.8 ns 1.5 7.5 1.5 5.0 1.5 4.8 ns 1.5 9.5 1.5 6.2 1.5 5.8 ns 1.5 7.5 1.5 5.0 1.5 4.8 ns 0.5 ns tPHZ tPLZ Output Disable Time(3) xOE to A or B tPZH tPZL Output Enable Time xDIR to A or B(3) tPHZ tPLZ Output Disable Time xDIR to A or B(3) tsk(o) CL = 50pF RL = 500Ω Output Skew(4) 0.5 0.5 Notes: 1. For Max or Min conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 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. 11-0005 5 PS2032L 07/29/10 PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Tranceivers Packaging Mechanical: 48-Pin, 240-mil wide Plastic TSSOP (A) 48 .236 .244 1 6.0 6.2 .488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE .004 0.09 .008 0.20 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .0197 BSC 0.50 0.45 .018 0.75 .030 .002 .006 0.05 0.15 .007 .010 0.17 0.27 .319 BSC 8.1 Packaging Mechanical: 48-pin 300-mil wide plastic SSOP (V) 48 .291 .299 7.39 7.59 .395 .420 10.03 10.67 Gauge Plane .010 0.25 .02 0.51 .04 1.01 1 .620 .630 15.75 16.00 .015 0.381 x 45˚ .025 0.635 .008 0.20 Nom. .110 2.79 Max .025 BSC 0.635 .008 0.20 .0135 0.34 0-8˚ .008 0.20 .016 0.40 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 11-0005 6 PS2032L 07/29/10 PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Tranceivers PI74FCT16245T Ordering Information Ordering Code Package Code Speed Grade Package Description PI74FCT16245TAE A Blank Pb-free & Green, 48-pin 240-mil wide plastic TSSOP PI74FCT16245TVE V Blank Pb-free & Green, 48-pin 300-mil wide plastic SSOP PI74FCT16245ATAE A A Pb-free & Green, 48-pin 240-mil wide plastic TSSOP PI74FCT16245ATVE V A Pb-free & Green, 48-pin 300-mil wide plastic SSOP PI74FCT16245CTVE V C Pb-free & Green, 48-pin 300-mil wide plastic SSOP PI74FCT162245T Ordering Information Ordering Code Package Code Speed Grade Package Description PI74FCT162245TVE V Blank Pb-free & Green, 48-pin 300-mil wide plastic SSOP PI74FCT162245ATAE A A Pb-free & Green, 48-pin 240-mil wide plastic TSSOP PI74FCT162245ATVE V A Pb-free & Green, 48-pin 300-mil wide plastic SSOP PI74FCT162245CTVE V C Pb-free & Green, 48-pin 300-mil wide plastic SSOP Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free and Green • Adding an X suffix = Tape/Reel 11-0005 7 PS2032L 07/29/10 PI74FCT16245T PI74FCT162245T Fast CMOS 16-Bit Bidirectional Tranceivers Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 11-0005 8 PS2032L 07/29/10