IDT74ALVC245 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS FEATURES: IDT74ALVC245 DESCRIPTION: • 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 µ W typ. static) • CMOS power levels (0.4µ • Rail-to-Rail output swing for increased noise margin • Available in SOIC and TSSOP packages This octal bus transceiver is built using advanced dual metal CMOS technology. The three-state controls are designed to operate this device in a single-byte mode. All inputs are designed with hysteresis for improved noise margin. The ALVC245 is designed for asynchronous communication between data buses. The device transmits data 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 ALVC245 has been designed with a ±24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance. DRIVE FEATURES: • High Output Drivers: ±24mA • Suitable for Heavy Loads APPLICATIONS: • 3.3V high speed systems • 3.3V and lower voltage computing systems FUNCTIONAL BLOCK DIAGRAM DIR 1 19 A1 OE 2 18 B1 TO SEVEN OTHER CHANNELS The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE JANUARY 2004 1 © 2004 Integrated Device Technology, Inc. DSC-4917/2 IDT74ALVC245 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS(1) Symbol Description Max Unit VTERM(2) Terminal Voltage with Respect to GND –0.5 to +4.6 V VTERM(3) Terminal Voltage with Respect to GND –0.5 to VCC+0.5 V TSTG Storage Temperature –65 to +150 °C DIR 1 20 VCC A1 2 19 OE IOUT DC Output Current –50 to +50 mA Continuous Clamp Current, VI < 0 or VI > VCC ±50 mA A2 3 18 B1 IIK A3 4 17 B2 IOK Continuous Clamp Current, VO < 0 –50 mA A4 5 16 B3 ICC ISS Continuous Current through each VCC or GND ±100 mA A5 6 15 B4 A6 7 14 B5 A7 8 13 B6 A8 9 12 B7 10 11 B8 GND 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 (TA = +25°C, F = 1.0MHz) SOIC/ TSSOP TOPVIEW Parameter(1) Symbol Conditions Typ. Max. CIN Input Capacitance VIN = 0V 5 7 pF COUT Output Capacitance VOUT = 0V 7 9 pF CI/O I/O Port Capacitance VIN = 0V 7 9 pF NOTE: 1. As applicable to the device type. PIN DESCRIPTION Pin Names Description 3-State Output Enable Input (Active LOW) OE DIR Direction-Control Input Ax Side A Inputs or 3-State Outputs Bx Side B Inputs or 3-State Outputs FUNCTION TABLE(1) Inputs DIR Operation L L B data to A bus L H A data to B bus H X Isolation OE NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care 2 Unit IDT74ALVC245 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = –40°C to +85°C Symbol VIH VIL Min. Typ.(1) Max. Unit VCC = 2.3V to 2.7V 1.7 — — V VCC = 2.7V to 3.6V 2 — — VCC = 2.3V to 2.7V — — 0.7 VCC = 2.7V to 3.6V — — 0.8 Parameter Input HIGH Voltage Level Input LOW Voltage Level Test Conditions V IIH Input HIGH Current VCC = 3.6V VI = VCC — — ±5 µA IIL Input LOW Current VCC = 3.6V VI = GND — — ±5 µA IOZH High Impedance Output Current VCC = 3.6V VO = VCC — — ±10 µA IOZL (3-State Output pins) VO = GND — — ±10 VIK Clamp Diode Voltage VCC = 2.3V, IIN = –18mA — –0.7 –1.2 V VH ICCL ICCH ICCZ ∆ICC Input Hysteresis Quiescent Power Supply Current VCC = 3.3V VCC = 3.6V VIN = GND or VCC — — 100 0.1 — 40 mV µA Quiescent Power Supply Current Variation One input at VCC - 0.6V, other inputs at VCC or GND — — 750 µA NOTE: 1. Typical values are at VCC = 3.3V, +25°C ambient. OUTPUT DRIVE CHARACTERISTICS Symbol VOH VOL Test Conditions(1) Parameter Output HIGH Voltage Output LOW Voltage Min. Max. Unit VCC – 0.2 — V VCC = 2.3V to 3.6V IOH = – 0.1mA VCC = 2.3V IOH = – 6mA 2 — VCC = 2.3V IOH = – 12mA 1.7 — VCC = 2.7V 2.2 — VCC = 3V 2.4 — VCC = 3V IOH = – 24mA 2 — VCC = 2.3V to 3.6V IOL = 0.1mA — 0.2 VCC = 2.3V IOL = 6mA — 0.4 IOL = 12mA — 0.7 VCC = 2.7V IOL = 12mA — 0.4 VCC = 3V IOL = 24mA — 0.55 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 = – 40°C to + 85°C. 3 IDT74ALVC245 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE OPERATING CHARACTERISTICS, TA = 25°C Symbol Parameter CPD Power Dissipation Capacitance Outputs enabled CPD Power Dissipation Capacitance Outputs disabled VCC = 2.5V ± 0.2V VCC = 3.3V ± 0.3V Typical Typical Test Conditions Unit CL = 0pF, f = 10Mhz pF SWITCHING CHARACTERISTICS(1) VCC = 2.5V ± 0.2V Symbol VCC = 2.7V VCC = 3.3V ± 0.3V Parameter Min. Max. Min. Max. Min. Max. Unit 1.5 7 1.5 5.6 1.5 5 ns 1.5 9.5 1.5 6.2 1.5 5.8 ns 1.5 7.5 1.5 5 1.5 4.8 ns — — — — — 500 ps tPLH Propagation Delay tPHL Ax to Bx or Bx to Ax tPZH Output Enable Time tPZL OE or DIR to Ax or Bx tPHZ Output Disable Time tPLZ OE or DIR to Ax or Bx tSK(O) Output Skew(2) NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C. 2 Skew between any two outputs of the same package and switching in the same direction. 4 IDT74ALVC245 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS VCC(1)= 3.3V±0.3V VCC(1)= 2.7V Symbol VCC(2)= 2.5V±0.2V Unit VLOAD 6 6 2 x Vcc V VIH 2.7 2.7 Vcc V VT 1.5 1.5 Vcc / 2 V VLZ 300 300 150 mV VHZ 300 300 150 mV CL 50 50 30 pF tPLH tPHL tPLH tPHL OUTPUT VIH VT 0V OPPOSITE PHASE INPUT TRANSITION ALVC Link Propagation Delay VLOAD VCC Open VIN VOUT tPZL D.U.T. OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω RT DISABLE ENABLE CONTROL INPUT GND 500Ω Pulse(1, 2) Generator VIH VT 0V VOH VT VOL SAME PHASE INPUT TRANSITION CL ALVC Link Test Circuit for All Outputs tPLZ VIH VT 0V VLOAD/2 VT VLOAD/2 VLZ VOL tPHZ VOH VHZ 0V VT 0V ALVC Link DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. Enable and Disable Times NOTES: 1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns. SWITCH POSITION DATA INPUT Test Switch Open Drain Disable Low Enable Low VLOAD Disable High Enable High GND All Other Tests Open tSU VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V tH TIMING INPUT tREM ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL tSU tH ALVC Link INPUT OUTPUT 1 tPLH1 VIH VT 0V tPHL1 tSK (x) Set-up, Hold, and Release Times VOH VT VOL tSK (x) LOW-HIGH-LOW PULSE tW VOH VT VOL OUTPUT 2 tPLH2 HIGH-LOW-HIGH PULSE VT ALVC Link tPHL2 Pulse Width tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1 Output Skew - tSK(X) VT ALVC Link 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 IDT74ALVC245 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION X ALVC IDT XX Bus-Hold Temp. Range XXX XX Device Type Package CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 SO PG Small Outline IC Thin Shrink Small Outline Package 245 Octal Bus Transceiver with 3-State Outputs, ±24mA Blank No Bus-Hold 74 –40°C to +85°C for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 6 for Tech Support: [email protected] (408) 654-6459