PI74ALVCH162601 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 18-Bit Universal Bus Transceiver with 3-State Outputs Product Features Product Description • • • • Pericom Semiconductors PI74ALVCH series of logic circuits are produced in the Companys advanced 0.5 micron CMOS technology, achieving industry leading speed. • • • • PI74ALVCH162601 is designed for low voltage operation VCC = 2.3V to 3.6V Hysteresis on all inputs Typical VOLP (Output Ground Bounce) < 0.8V at VCC = 3.3V, TA = 25°C Typical VOHV (Output VOH Undershoot) < 2.0V at VCC = 3.3V, TA = 25°C Bus Hold retains last active bus state during 3-STATE, eliminating the need for external pullup resistors Industrial operation at 40°C to +85°C Packages available: 56-pin 240 mil wide plastic TSSOP (A) 56-pin 300 mil wide plastic SSOP (V) The PI74ALVCH162601 uses D-type latches and D-type flip-flops with 3-state outputs to allow data flow in transparent, latched, and clocked modes. Data flow in each direction is controlled by Output Enable (OEAB and OEBA), Latched Enable (LEAB and LEBA), and Clock (CLKAB and CLKBA) inputs. The clock can be controlled by the Clock Enable (CLKENAB and CLKENBA) inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is HIGH. When LEAB is LOW, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A-bus is stored in the latch/flip-flop on the low-to-high transition of CLKAB. When OEAB is low, the outputs are active. When OEAB is HIGH, the outputs are in the highimpedance state. Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, CLKBA, and CLKENBA. To reduce overshoot and undershoot, the B-port outputs include 26Ω series resistors. Logic Block Diagram To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The PI74ALVCH162601 has Bus Hold which retains the data inputs last state whenever the data input goes to high-impedance preventing floating inputs and eliminating the need for pullup/ down resistors. 1 PS8093C 12/26/97 PI74ALVCH162601 18-BIT UNIVERSAL BUS TRANSCEIVER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Description Pin Name CLKEN OE LE CLK Ax Bx GND VCC Truth Table(1) Description Clock Enable Input (Active LOW) Output Enable Input (Active LOW) Latch Enable (Active HIGH) Clock Input (Active HIGH) Data I/O Data I/O Ground Power Inputs CLKENAB OEAB LEAB Product Pin Configuration OEAB LEAB A1 GND A2 A3 1 2 56 55 CLKENAB 3 4 5 54 53 52 B1 6 7 8 56-PIN 51 A-56 50 V-56 GND B2 B3 VCC B4 9 10 48 47 B5 B6 11 12 13 46 45 44 GND 43 42 41 B9 A11 14 15 16 A12 GND 17 18 40 39 B12 A13 38 37 36 B13 A15 19 20 21 VCC A16 A17 22 23 24 35 34 33 GND 25 26 32 31 GND 27 28 30 29 CLKBA CLKENBA A5 A6 GND A7 A8 A9 A10 A14 A18 OEBA LEBA A Output B X H X X X Z X L H X L L X L H X H H H L L X X B0 H L L X X B0 L L L L L L L L H H L L L L X B0 L L L H X B0§ Notes: 1. H = High Signal Level L = Low Signal Level Z = High Impedance ↑ = LOW-to-HIGH Transition A-to-B data flow is shown: B-to-A flow is similar but uses OEBA, LEBA, CLKBA, and CLKENBA. Output level before the indicated steady-state input conditions were established. § Output level before the indicated steady-state input conditions were established, provided that CLKAB is LOW before LEAB goes LOW. CLKAB 49 VCC A4 CLKAB B7 B8 B10 B11 GND B14 B15 VCC B16 B17 B18 2 PS8093C 12/26/97 PI74ALVCH162601 18-BIT UNIVERSAL BUS TRANSCEIVER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .............................................................. 65°C to +150°C Supply Voltage Range, VCC ......................................................... 0.5V to 4.6V Input Voltage Range,VI : Except I/O ports (See Note 1): ..................................................... 0.5V to 4.6V I/O ports (See Notes 1 and 2) ........................................... 0.5V to VCC + 0.5V Output Voltage Range, VO (See Notes1and 2) ................. 0.5V to VCC + 0.5V Input Clamp current, IIK (VI < 0) ........................................................... 50mA Output Clamp current, IOK (VO < 0 or VO > VCC) ................................ ±50mA Continous Output Current, IO (VO = 0 to VCC) .................................... ±50mA Continous Current through each VCC or GND .................................... ±100mA Maximum Power Dissipation: A package ................................................................................................... 1W V package ................................................................................................. 1.4W 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. Notes: 1. The input and output negative-voltage ratings maybe exceeded if the input and outputclamp-current ratings are observed. 2. This value is limited to 4.6V maximum. 3. The maximumpackage power dissipation is calculated using a junction temperature of 150ºC and a board trace lengthof 750mils. Recommended Operating Conditions(1) Parame te rs De s cription VCC Supply Voltage VIH Input HIGH Voltage VIL Input LOW Voltage VIN Input Voltage 0 VCC VOUT Output Voltage 0 VCC VCC = 2.3V - 12 IOH High- level Output Current (A Port) VCC = 2.7V - 12 VCC = 3.0V - 24 Low- level Output Current (A Port) VCC = 2.3V 12 VCC = 2.7V 12 VCC = 3.0V 24 High- level Output Current (B Port) VCC = 2.3V -6 Low- level Output Current (B Port) IOL IOH IOL TA Te s t Conditions M in. 2.3 VCC = 2.3V to 2.7V 1.7 VCC = 2.7V to 3.6V 2.0 VCC = 2.3V to 2.7V Typ. M ax. 3.6 0.7 VCC = 2.7V to 3.6V V 0.8 VCC = 2.7V -8 VCC = 3.0V - 12 VCC = 2.3V 6 VCC = 2.7V 8 VCC = 3.0V 12 Operating Free- Air Temperature Units - 40 85 mA °C Note: 1. Unused control inputs must be held HIGH or LOW to prevent them from floating. 3 PS8093C 12/26/97 PI74ALVCH162601 18-BIT UNIVERSAL BUS TRANSCEIVER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 3.3V ± 10%) Parame te rs VCC(1) Te s t Conditions IOH = - 100 mA IOH = - 4 mA VOH (B Port) VIH = 1.7V 2.3V VIH = 1.7V 2.3V 1.7 3.0V 2.4 IOH = - 8 mA VIH = 2.0V 2.7V 2.0 IOH = - 12 mA VIH = 2.0V 3.0V 2.0 IOH = - 6 mA IOH = - 12 mA IOH = - 24 mA VOL (B Port) VIH = 1.7V 2.3V VIH = 1.7V 2.3V 1.7 VIH = 2.0V 2.7V 2.2 VIH = 2.0V 3.0V 2.4 VIH = 2.0V 3.0V 2.0 2.3V 0.4 2.3V 0.55 VIL = 0.8V 3.0V 0.55 IOL = 8 mA VIL = 0.8V 2.7V 0.6 IOL= 12 mA VIL = 0.8V 3.0V 0.8 Min. to Max. 0.2 IOL = 12 mA IOL = 24 mA VIL = 0.7V 2.3V 0.4 VIL = 0.7V 2.3V 0.7 VIL = 0.8V 2.7V 0.4 VIL = 0.8V 3.0V 0.55 3.6V ±5 VI = VCC or GND VI = 0.7V II (Hold)(3) 2.3V VI = 1.7V VI = 0.8V 3.0V VI = 2.0V IOZ(4) ICC DICC 0.2 VIL = 0.7V IOL = 6 mA II V Min. to Max. IOL = 100 mA VOL (A Port) 2.0 VIL = 0.7V IOL = 6 mA 45 - 45 75 - 75 mA VI = 0 to 3.6V 3.6V ±500 VO = VCCor GND 3.6V ±10 3.6V 40 3V to 3.6V 750 VI = VCC or GND Units Min. to Max. VCC - 0.2 IOL = 100 mA IOL = 4 mA M ax. 1.9 VIH = 2.0V IOH = - 6 mA Typ.(2) Min. to Max. VCC - 0.2 IOH = - 100 mA VOH (A Port) M in. IO = 0 One input at VCC - 0.6V, Other inputs at VCC or GND CI Control Inputs VI = VCC or GND 3.3V 4 CIO A or B ports VO = VCC or GND 3.3V 8 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 = 3.3V, +25°C ambient and maximum loading. 3. Bus Hold maximum dynamic current required to switch the input from one state to another. 4. For I/O ports, the IOZ includes the input leakage current. 4 PS8093C 12/26/97 PI74ALVCH162601 18-BIT UNIVERSAL BUS TRANSCEIVER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Timing Requirements over Operating Range Parame te rs D e s cription fCLOCK tW Pulse Duration tSUSetup time tH Hold time Dt/Dv(1) VCC = 2.5V ± 0.2V VCC = 2.7V VCC = 3.3V ± 0.3V M in. M ax. M in. M ax. M in. M ax. Clock frequency 0 140 0 150 0 150 LE high 3.3 3.3 3.3 CLK high or low 3.3 3.3 3.3 Data before CLK high 2.3 2.4 2.1 Data before LE low, CLK high 2.0 1.6 1.6 Data before LE low, CLK low 1.3 1.2 1.1 CLK EN before CLK high 2.0 2.0 1.7 Data after CLK high 0.7 0.7 0.8 Data after LE low, CLK high 1.3 1.6 1.4 Data after LE low, CLK low 1.7 2.0 1.7 CLK EN after CLK high 0.3 0.5 0.6 Input Transition Rise or Fall 0 10 0 10 Units MHz ns 0 10 ns/V Note: 1. Unused control inputs must be held HIGH or LOW to prevent them from floating. Switching Characteristics over Operating Range(1) Parame te rs From(INPUT) To(OUTPUT) VCC = 2.5V ±0.2V M in.(2) VCC = 2.7V M ax. M in.(2) 140 fMAX VCC = 3.3 V ± 0.3V M ax. 150 M in.(2) 150 MHz tPD A B 1.8 5.4 5.2 1.6 4.5 tPD B A 1.3 4.9 4.6 1 4.1 tPD LEAB B 1.5 6.1 5.9 1.5 5.1 tPD LEBA A 1.4 5.6 5.3 1 4.7 tPD CLKAB B 2 6.7 6.3 1.6 5.5 tPD CLKBA A 1.8 6.2 5.8 1.4 5 tEN OEAB B 1.7 6.6 6.7 1.6 5.7 tDIS OEAB B 2.5 5.9 5.3 1.8 4.8 tEN OEBA A 1.2 6 OEBA A 2.1 5.4 tDIS Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. Units M ax. 6.1 1.1 5.2 4.8 1.6 4.4 ns Operating Characteristics, TA = 25ºC Parame te r CPD Power Dissipation Capacitance Te s t Conditions Outputs Enabled Outputs Disabled CL = 50pF, f = 10 MHz VCC = 2.5V ± 0.2V VCC = 3.3V ± 0.3V Typical 41 50 6 6 Units pF Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 5 PS8093C 12/26/97