PI74LCX16652 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 16-Bit Registered Transceivers Product Features Product Description Functionally compatible with FCT3, LVT, and 74 series 16652 families of products Tri-State outputs 5V Tolerant inputs and outputs 2.0V-3.6V VCC supply operation Balanced sink and source output drives (24 mA) Low ground bounce outputs Supports live insertion ESD Protection exceeds 2000V, Human Body Model 200V, Machine Model Packages available: 56-pin 240-mil wide plastic TSSOP (A) 56-pin 300-mil wide plastic SSOP (V) Pericom Semiconductor's PI74LCX series of logic circuits are produced using the Companys advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74LCX16652 is 16-bit non-inverting, bidirectional bus transceiver organized as two independent 8-bit bus transceivers designed 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. Each 8-bit transceiver utilizes the enable controls (xOEAB and x OEBA) to control the transceiver functions. The Select (xSAB and xSBA) control pins are used to select either real-time 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 PI74LCX16652 can be driven from either 3.3V or 5.0V devices allowing this device to be used as a translator in a mixed 3.3/5.0V system. Logic Block Diagram 1OEAB 2OEAB 1OEBA 2OEBA 1CLKBA 2CLKBA 1SBA 2SBA 1CLKAB 2CLKAB 1SAB 2SAB B REG B REG D D C C 1A0 2A0 A REG A REG 1B0 D 2B0 D C C TO 7 OTHER CHANNELS TO 7 OTHER CHANNELS 1 PS2094A 02/19/97 PI74LCX16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table(1) Data I/O(2) Inputs Function/Operation xOEAB xOEBA xCLKAB xCLKBA xSAB xSBA xAx xBx Isolation Store A and B Data L L H H H or L ↑ H or L ↑ X X X X Input Input Store A, Hold B Store A in Both Registers X H H H ↑ ↑ H or L ↑ X X(2) X X Input Input Unspecified(1) Output Hold A, Store B Store B in Both Registers L L X L H or L ↑ ↑ ↑ X X X X(2) Unspecified(1) Output Input Input Real Time B Data to A Bus Stored B Data to A Bus L L L L X X X H or L X X L H Output Input Real Time A Data to B Bus Stored A Data to B Bus H H H H X H or L X X L H X X Input Output Stored A Data to B Bus and Stored B Data to A Bus H L H or L H or L H H Output Output Notes: 1. The data output functions may be enabled or disabled by various signals at the xOEAB or xOEBA 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. 2. Select control = L: clocks can occur simultaneously. Select control = H: clocks must be staggered in order to load both registers. H = High Voltage Level; L = Low Voltage Level; X = Don't Care; ↑ = LOW-to-HIGH transition Product Pin Configuration Product Pin Description 1OEAB 1 56 1OEBA 1CLKAB 2 55 1CLKBA 1SAB 3 54 1SBA GND 4 53 GND 1A0 5 52 1B0 1A1 6 51 1B1 VCC 7 50 VCC 1A2 8 49 1B2 1A3 9 48 1B3 1A4 10 47 1B4 GND 11 46 GND 1A5 12 45 1B5 1A6 13 44 1B6 1A7 14 43 1B7 2A0 15 42 2B0 2A1 16 41 2B1 2A2 17 40 2B2 GND 18 39 GND 2A3 19 38 2B3 2A4 20 37 2B4 2A5 21 36 2B5 VCC 22 35 VCC 2A6 23 34 2B6 2A7 24 33 2B7 GND 25 32 GND 56-PIN V56 A56 2SAB 26 31 2SAB 2CLKAB 27 30 2CLKBA 2OEAB 28 29 2OEBA 2 Pin Name De s cription XAX Data Register A Inputs Data Register B Outputs XBX Data Register B Inputs Data Register A Outputs xCLKAB, xCLKBA Clock Pulse Inputs SAB, SBA Output Data Source Select Inputs XO EAB, XO EBA Output Enable Inputs GND Ground VCC Power PS2094A 02/19/97 PI74LCX16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 REAL-TIME TRANSFER BUS A TO B REAL-TIME TRANSFER BUS B TO A BUS BUS BUS BUS A B A B xOEAB xOEBA xCLKAB xCLKBA xSAB xSBA L L X X X L xOEAB xOEBA xCLKAB xCLKBA xSAB xSBA H H X X L X STORAGE FROM A AND/OR B xOEAB X L L TRANSFER STORES DATA TO A AND/OR B BUS BUS BUS BUS A B A B xOEBA xCLKAB xCLKBA xSAB xSBA H ↑ X X X X X ↑ X X H ↑ ↑ X X xOEAB xOEBA xCLKAB xCLKBA xSAB xSBA H L H or L H or L H H 3 PS2094A 02/19/97 PI74LCX16652 16-BIT REGISTERED TRANSCEIVERS 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 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. Power Dissipation .................................................................................... 1.0W Recommended Operating Conditions Symbol VCC Parameter Supply Voltage VI Input Voltage VO Output Voltage IOH/IOL TA ∆t/∆V Output Current Min. Max. Operating 2.0 3.6 Data Retention 1.5 3.6 0 5.5 HIGH or LOW State 0 VCC TRI-State 0 5.5 VCC = 3.0V-3.6V ±24 VCC = 2.7V ±12 −40 +85 °C 0 10 ns/V Free-Air Operating Temperature Input Edge Rate V = 0.8V-2.0V, VCC = 3.0V 4 Units V mA PS2094A 02/19/97 PI74LCX16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics (Over the Operating Range, TA = −40°C to +85°C, VCC = 2.7V to 3.6V) Description Test Conditions(1) VIH Input HIGH Voltage VIL VOH Parameters Min. Typ(2) Max. Guaranteed Logic HIGH Level 2.0 — — Input LOW Voltage Guaranteed Logic LOW Level — — 0.8 Output HIGH Voltage VCC = 2.7-3.6 IOH = –0.1 mA VCC-0.2 — — VCC = 2.7 IOH = –12 mA 2.2 — — VCC = 3.0 IOH = –18 mA 2.4 — — IOH = –24 mA 2.2 — — VCC = 2.7-3.6 IOL = 0.1 mA — — 0.2 VCC = 2.7 IOL = 12mA — — 0.4 VCC = 3.0 IOL = 16 mA — — 0.4 IOL = 24 mA — — 0.55 Output LOW Voltage VOL Units V VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA — −0.7 −1.2 II Input Leakage Current 0 ≤ VI ≤ 5.5V Vcc = 2.7-3.6 — — ±5 IOZ Tri-State Output Leakage 0 ≤ VO ≤ 5.5V VI = VIH or VIL VCC = 2.7-3.6 — — ±5 IOFF Power Down Disable VCC = 0V, VIN or VOUT ≤ 5.5V — — 10 ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 10 ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = VCC – 0.6V(3) 500 µA 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 = 3.3V, +25°C ambient. 3. Per TTL driven input; all other inputs at Vcc or GND. Capacitance Parameters Description Test Conditions Typ. Input Capacitance VCC = Open, VI = 0V or VCC 7 COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 CPD Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, F = 10 MHz 20 CIN 5 Units pF PS2094A 02/19/97 PI74LCX16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range VCC = 3.3V ± 0.3V Parameters Description VCC = 2.7V Conditions Min. Max. Min. Max. CL = 50pF RL = 500Ω 1.5 5.7 1.5 6.2 tPLH tPHL Propagation Delay Bus to Bus tPZH tPZL Output Enable Time xOEAB or xOEBA to Bus 1.5 7.0 1.5 8.0 tPHZ tPLZ Output Disable Time xOEAB or xOEBA to Bus 1.5 6.5 1.5 7.0 tPLH tPHL Propagation Delay Clock to Bus 1.5 6.2 1.5 7.0 tPLh tPHL Propagation Delay xSBA to xSAB to Bus 1.5 6.5 1.5 7.0 tSU Setup Time HIGH or LOW, Bus to Clock 2.5 2.5 tH Hold Time HIGH or LOW, Bus to Clock 1.5 1.5 tW Clock Pulse Width HIGH or LOW 3.0 3.0 Output Skew(1) 1.0 tSK(O) Units ns Note: 1. Skew between any two outputs, of the same package, switching in the same direction. Dynamic Switching Characteristics (TA = +25°C) Parameters VOLP VOLV Description Test Conditions(1) Dynamic LOW Peak Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V Dynamic LOW Valley Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V Typical Units 0.8 V Note: 1. Measured with n1 outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the LOW state. Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 6 PS2094A 02/19/97