idt74lvc2245a 3.3v cmos octal bus transceiver with 3-state outputs ...

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IDT74LVC2245A 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VCC (1) = 3.3V±0.3V VCC (1) = 2.7V 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 Pulse Generator (1, 2) VIN RT VCC D.U.T. VOUT CL Test Circuit for All Outputs 500Ω 500Ω LVC Link 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 ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns. VLOAD Open GND SAME PHASE INPUT TRANSITION OUTPUT OPPOSITE PHASE INPUT TRANSITION CONTROL INPUT OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH INDUSTRIAL TEMPERATURE RANGE tPLH tPLH Propagation Delay ENABLE tPZL SWITCH VLOAD tPZH SWITCH GND VLOAD/2 VT VT 0V tPHL tPHL DISABLE tPHZ tPLZ VIH VT 0V VOH VT VOL VIH VT 0V LVC Link VIH VT 0V VLOAD/2 VOL+VLZ VOL VOH 0V LVC Link VOH-VHZ Enable and Disable Times NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. SWITCH POSITION Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests INPUT tPLH1 tPHL1 Switch VLOAD GND Open VIH VT 0V VOH DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL tSU tSU tREM tH tH Set-up, Hold, and Release Times VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V LVC Link OUTPUT 1 OUTPUT 2 tPLH2 tSK (x) tPHL2 tSK (x) tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1 VT VOL VOH VT VOL LOW-HIGH-LOW PULSE HIGH-LOW-HIGH PULSE Pulse Width tW VT VT LVC Link Output Skew - tSK(X) NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two <strong>outputs</strong>. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank. LVC Link 6
IDT74LVC2245A 3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT XX LVC X XXXX XX Temp. Range Bus-Hold Device Type Package SO PY Q PG 2245A Blank 74 Small Outline IC (gull wing) Shrink Small Outline Package Quarter Size Small Outline Package Thin Shrink Small Outline Package Octal Bus Transceiver <strong>with</strong> 3-State Outputs, ±12mA (B port) ±24mA (A port) No Bus-hold –40°C to +85°C CORPORATE HEADQUARTERS for SALES: for Tech Support: 2975 Stender Way 800-345-7015 or 408-727-6116 logichelp@idt.com Santa Clara, CA 95054 fax: 408-492-8674 (408) 654-6459 www.idt.com 7
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