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IDT74ALVCHR162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE 3.3V CMOS 16-BIT BUS TRANSCIEVER WITH 3-STATE OUTPUTS AND BUS-HOLD * 0.5 MICRON CMOS Technology * Typical tSK(o) (Output Skew) < 250ps * ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * VCC = 3.3V 0.3V, Normal Range * VCC = 2.7V to 3.6V, Extended Range * VCC = 2.5V 0.2V * CMOS power levels (0.4 W typ. static) * Rail-to-Rail output swing for increased noise margin * Available in SSOP, TSSOP, and TVSOP packages IDT74ALVCHR162245 FEATURES: DESCRIPTION: DRIVE FEATURES: APPLICATIONS: * Balanced Output Drivers: 12mA * Low Switching Noise This 16-bit bus transceiver is built using advanced dual metal CMOS technology. The ALVCHR162245 device is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements. This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The ALVCHR162245 has series resistors in the device output structure which will significantly reduce line noise when used with light loads. This driver has been designed to drive 12mA at the designated threshold levels. The ALVCHR162245 has "bus-hold" which retains the inputs' last state whenever the input bus goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistors. * 3.3V high speed systems * 3.3V and lower voltage computing systems FUNCTIONAL BLOCK DIAGRAM 1D IR 1 2D IR 48 24 25 36 13 35 1O E 2A 1 2O E 1A 1 47 2 46 1B 1 2A 2 2B 1 1A 2 3 44 5 43 1B 2 2A 3 1B 3 2A 4 32 33 14 2B 2 1A 3 16 2B 3 1A 4 6 41 8 40 9 38 11 1B 4 2A 5 1B 5 2A 6 1B 6 2A 7 1B 7 26 27 29 30 17 2B 4 1A 5 19 2B 5 1A 6 20 2B 6 1A 7 22 2B 7 1A 8 37 2A 8 12 1B 8 23 2B 8 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE 1 (c) 1999 Integrated Device Technology, Inc. MARCH 1999 DSC-4606/1 IDT74ALVCHR162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION 1DIR 1B1 1B2 ABSOLUTE MAXIMUM RATINGS(1) Symbol Description Max VTERM(2) Terminal Voltage with Respect to GND Storage Temperature DC Output Current Continuous Clamp Current, VI < 0 or VI > VCC Continuous Clamp Current, VO < 0 Continuous Current through each VCC or GND -0.5 to +4.6 -65 to +150 -50 to +50 50 -50 100 Unit V V C mA mA mA mA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1OE 1A1 1A2 VTERM(3) Terminal Voltage with Respect to GND -0.5 to VCC+0.5 TSTG IOUT IIK IOK ICC ISS GND 1B3 1B4 GND 1A3 1A4 VCC 1B5 1B6 VCC 1A5 1A6 GND 1B7 1B8 2B1 2B2 GND 1A7 1A8 2A1 2A2 NOTES: 1. Stresses greater than those listed under ABSOLUTE 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. 2. VCC terminals. 3. All terminals except VCC. CAPACITANCE Symbol CIN COUT CI/O Parameter(1) Input Capacitance (TA = +25C, F = 1.0MHz) Conditions VIN = 0V VOUT = 0V VIN = 0V Typ. 5 7 7 Max. 7 9 9 Unit pF pF pF GND 2B3 2B4 GND 2A3 2A4 Output Capacitance I/O Port Capacitance NOTE: 1. As applicable to the device type. VCC 2B5 2B6 VCC 2A5 2A6 PIN DESCRIPTION Pin Names xOE DIR xAx(1) xBx(1) Description Output Enable Inputs (Active LOW) Direction Control Inputs Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs GND 2B7 2B8 2DIR GND 2A7 2A8 2OE NOTE: 1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os. SSOP/ TSSOP/ TVSOP TOP VIEW FUNCTION TABLE Inputs xOE L L H NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance (EACH 8-BIT SECTION)(1) xDIR L H X Outputs Bus B data to A bus Bus A data to B bus High Z State 2 IDT74ALVCHR162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = -40C to +85C Symbol VIH VIL IIH IIL IOZH IOZL VIK VH ICCL ICCH ICCZ ICC Parameter Input HIGH Voltage Level Input LOW Voltage Level Input HIGH Current Input LOW Current High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current VCC = 2.3V, IIN = -18mA VCC = 3.3V VCC = 3.6V VIN = GND or VCC One input at VCC - 0.6V, other inputs at VCC or GND VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 3.6V VCC = 3.6V VCC = 3.6V VI = VCC VI = GND VO = VCC VO = GND Test Conditions Min. 1.7 2 -- -- -- -- -- -- -- -- -- Typ.(1) -- -- -- -- -- -- -- -- -0.7 100 0.1 Max. -- -- 0.7 0.8 5 5 10 10 -1.2 -- 40 V mV A A A A V Unit V Quiescent Power Supply Current Variation -- -- 750 A NOTE: 1. Typical values are at VCC = 3.3V, +25C ambient. BUS-HOLD CHARACTERISTICS Symbol IBHH IBHL IBHH IBHL IBHHO IBHLO NOTES: 1. Pins with Bus-Hold are identified in the pin description. 2. Typical values are at VCC = 3.3V, +25C ambient. Parameter(1) Bus-Hold Input Sustain Current Bus-Hold Input Sustain Current Bus-Hold Input Overdrive Current VCC = 3V VCC = 2.3V VCC = 3.6V Test Conditions VI = 2V VI = 0.8V VI = 1.7V VI = 0.7V VI = 0 to 3.6V Min. - 75 75 - 45 45 -- Typ.(2) -- -- -- -- -- Max. -- -- -- -- 500 Unit A A A 3 IDT74ALVCHR162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE OUTPUT DRIVE CHARACTERISTICS Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.7V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V Test Conditions(1) VCC = 2.3V to 3.6V IOH = - 0.1mA IOH = - 4mA IOH = - 6mA IOH = - 4mA IOH = - 8mA IOH = - 6mA IOH = - 12mA IOL = 0.1mA IOL = 4mA IOL = 6mA IOL = 4mA IOL = 8mA IOL = 6mA IOL = 12mA Min. VCC - 0.2 1.9 1.7 2.2 2 2.4 2 -- -- -- -- -- -- -- Max. -- -- -- -- -- -- -- 0.2 0.4 0.55 0.4 0.6 0.55 0.8 V Unit V NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = - 40C to + 85C. OPERATING CHARACTERISTICS, TA = 25C VCC = 2.5V 0.2V Symbol CPD CPD Parameter Power Dissipation Capacitance Outputs enabled Power Dissipation Capacitance Outputs disabled Test Conditions CL = 0pF, f = 10Mhz Typical 24 4 VCC = 3.3V 0.3V Typical 32 5 Unit pF SWITCHING CHARACTERISTICS(1) VCC = 2.5V 0.2V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Parameter Propagation Delay xAx to xBx or xBx to xAx Output Enable Time xOE to xAx or xBx Output Disable Time xOE to xAx or xBx Output Skew(2) 1 6.3 1 6.8 Min. 1 Max. 4.9 Min. VCC = 2.7V Max. 4.7 6.7 5.7 VCC = 3.3V 0.3V Min. 1 1 1 Max. 4.2 5.6 5.5 500 Unit ns ns ns ps -- -- -- -- -- -- -- -- NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = - 40C to + 85C. 2. Skew between any two outputs of the same package and switching in the same direction. 4 IDT74ALVCHR162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE VIH VT 0V VOH VT VOL VIH VT 0V ALVC Link TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V VCC(1)= 2.7V 6 2.7 1.5 300 300 50 VCC 500 Pulse Generator (1, 2) SAME PHASE INPUT TRANSITION VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30 Unit V V V mV mV pF VLOAD Open GND tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL 6 2.7 1.5 300 300 50 tPHL Propagation Delay ENABLE CONTROL INPUT tPZL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VIH VT 0V VLOAD/2 VLZ VOL VOH VHZ 0V ALVC Link VIN D.U.T. VOUT RT 500 CL ALVC Link Test Circuit for All Outputs DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2ns; tR 2ns. NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. Enable and Disable Times DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL SWITCH POSITION Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests Switch VLOAD GND Open VIH INPUT VT 0V VOH OUTPUT 1 VT VOL VOH OUTPUT 2 tPLH2 tPHL2 ALVC Link tSU tH tREM tSU tH VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V ALVC Link Set-up, Hold, and Release Times tPLH1 tPHL1 LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE VT tSK (x) tSK (x) VT VOL VT ALVC Link Pulse Width tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1 Output Skew - tSK(X) NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank. 5 IDT74ALVCHR162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT X ALVC XX Bus-Hold Temp. Range XX Family XXX Device Type XX Package PV PA PF 245 R162 Shrink Small Outline Package Thin Shrink Small Outline Package Thin Very Small Outline Package 16-Bit Bus Transceiver with 3-State Outputs Double-Density with Resistors, 12mA H 74 Bus-hold -40C to +85C CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com for Tech Support: logichelp@idt.com (408) 654-6459 6 |
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