PI74LCX16952 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 3.3V 16-Bit 16-Bit Registered Transceivers Product Description Product Features Pericom Semiconductors PI74LCX series of logic circuits are produced using the Companys advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74LCX16952 is a 16-bit registered transceivers organized with two sets of eight D-type latches with separate input and output controls for each set. For data flow from A to B, for example, the Ato-B Enable (xCEAB) input must be LOW in order to enter data from xAx. The data present on the A port will be clocked on the B register when xCLKAB toggles from LOW-to-HIGH. The xOEAB control performs the output enable function on the B port. Control of data from B to A is similar, but uses the xCEAB, xCLKAB, and xOEAB inputs. By connecting the control pins of the two independent transceivers together, a full 16-bit operation can be achieved. The output buffers are designed with a Power-Off disable allowing "live insertion" of boards when used as backplane drivers. The PI74LCX16952 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. Functionally compatible with FCT3, LVT, and 74 series 16952 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) Logic Block Diagram 1OEBA 2OEBA 1CEBA 2CEBA 1CLKBA 2CLKBA 1OEAB 2OEAB 1CEAB 2CEAB 1CLKAB 2CLKAB C C 1A0 2A0 D 1B0 D C 2B0 C D D TO 7 OTHER CHANNELS TO 7 OTHER CHANNELS 1 PS2096A 02/12/97 PI74LCX16952 3.3V 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Description Pin Name Truth Table(1,2) Inputs Description Outputs xOEAB A-to-B Output Enable Input (Active LOW) xCEAB xCLKAB xOEAB xAx xBx XOEBA B-to-A Output Enable Input (Active LOW) H X L X B(3) XCEAB A-to-B Clock Enable Input (Active LOW) X L L X B(3) xCEBA B-to-A Clock Enable Input (Active LOW) L ↑ L L L XCLKAB A-to-B Clock Input L ↑ L H H XCLKBA B-to-A Clock Input X X H X High-Z XAX A-to-B Data Inputs or B-to-A 3-State Outputs XBX B-to-A Data Inputs or B-to-A 3-State Outputs GND Ground VCC Power Notes: 1. H = High Voltage Level L = Low Voltage Level X = Dont Care or Irrelevant ↑ = LOW-to-HIGH Transition Z = High Impedance 2. A-to-B data flow shown. B-to-A flow control is the same, except using xCEBA, xCLKBA, and xOEBA. 3. Level of B before the indicated steady-state input conditions were established. Product Pin Configuration 1OEAB 1CLKAB 1CEAB GND 1A0 1A1 VCC 1A2 1A3 1A4 GND 1A5 1A6 1A7 2A0 2A1 2A2 GND 2A3 2A4 2A5 VCC 2A6 2A7 GND 2CEAB 2CLKAB 2OEAB 1 2 3 4 5 6 7 8 9 10 11 56 55 54 53 52 1OEBA 1CLKBA 1CEBA GND 1 B0 51 50 1 B1 49 48 47 1 B2 46 12 45 13 56-PIN 44 V56 43 14 A56 15 42 16 41 17 40 18 39 19 38 20 37 21 36 22 35 23 34 24 33 25 32 26 31 27 30 28 29 VCC 1 B3 1 B4 GND 1 B5 1 B6 1 B7 2 B0 2 B1 2 B2 GND 2 B3 2 B4 2 B5 VCC 2 B6 2 B7 GND 2CEBA 2CLKBA 2OEBA 2 PS2096A 02/12/97 PI74LCX16952 3.3V 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 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. 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 3 Units V mA PS2096A 02/12/97 PI74LCX16952 3.3V 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 VOL 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 = –0.1mA VCC-0.2 — — VCC = 2.7 IOH = –12mA 2.2 — — VCC = 3.0 IOH = –18mA 2.4 — — IOH = –24mA 2.2 — — VCC = 2.7-3.6 IOL = 0.1mA — — 0.2 VCC = 2.7 IOL = 12mA — — 0.4 VCC = 3.0 IOL = 16mA — — 0.4 IOL = 24mA — — 0.55 — −0.7 −1.2 Output LOW Voltage VIK Clamp Diode Voltage VCC = Min., IIN = –18mA 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 Units V 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 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 4 Typ. Units pF PS2096A 02/12/97 PI74LCX16952 3.3V 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 2.0 6.3 2.0 7.6 tPLH tPHL Propagation Delay xCLKAB, xCLKBA to xBx, xAx tPZH tPZL Output Enable Time xOEAB, xOEBA to xAx, xBx 1.5 7.0 1.5 8.4 tPHZ tPLZ Output Disable Time xOEAB, xOEBA to xAx, xBx 1.5 6.5 1.5 7.8 tsu Setup Time HIGH or LOW xAx, xBx to xCLKAB, xCLKB 2.5 2.5 tH Hold Time HIGH or LOW, xAx, xBx to xCLKAB, xCLKBA 2.0 2.0 tSU Setup Time HIGH or LOW xCEAB, xCEBA to xCLKAB, xCLKBA 3.0 3.0 tH Hold Time HIGH or LOW, xCEAB, xCEBA to xCLKAB, xCLKBA 2.0 2.0 tW Pulse Width HIGH or LOW xCLKAB or CLKBA 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) Description Test Conditions(1) VOLP Dynamic LOW Peak Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V VOLV Dynamic LOW Valley Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V Parameters Typ. 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 5 PS2096A 02/12/97