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TC59LM914AMG-50 Datasheet(PDF) 6 Page - Toshiba Semiconductor |
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TC59LM914AMG-50 Datasheet(HTML) 6 Page - Toshiba Semiconductor |
6 / 59 page TC59LM914/06AMG-37,-50 2004-08-20 6/59 Rev 1.0 Note: (1) All voltages referenced to VSS, VSSQ. (2) VREF is expected to track variations in VDDQ DC level of the transmitting device. Peak to peak AC noise on VREF may not exceed ±2% VREF (DC). (3) Overshoot limit: VIH (max) = VDDQ + 0.7 V with a pulse width ≤ 5 ns. (4) Undershoot limit: VIL (min) = −0.7 V with a pulse width ≤ 5 ns. (5) VIH (DC) and VIL (DC) are levels to maintain the current logic state. (6) VIH (AC) and VIL (AC) are levels to change to the new logic state. (7) VID is magnitude of the difference between VTR input level and VCP input level. (8) The value of VX (AC) is expected to equal VDDQ/2 of the transmitting device. (9) VISO means {VICK (VTR) + VICK (VCP)} /2. (10) Refer to the figure below. VTR is the true input (such as CLK, DQS) level and VCP is the complementary input (such as CLK , DQS ) level. (11) In the case of external termination, VTT (termination voltage) should be gone in the range of VREF (DC) ± 0.04 V. CAPACITANCE (VDD = 2.5V, VDDQ = 1.8 V, f = 1 MHz, Ta = 25°C) SYMBOL PARAMETER MIN MAX Delta UNIT CIN Input pin Capacitance 1.5 2.5 0.25 pF CINC Clock pin (CLK, CLK ) Capacitance 1.5 2.5 0.25 pF CI/O DQ, DQS, UDQS, LDQS, DQS Capacitance 2.5 4 0.5 pF CNC NC pin Capacitance ⎯ 4 ⎯ pF Note: These parameters are periodically sampled and not 100% tested. VISO (min) VISO (max) VICK VICK Vx Vx Vx Vx Vx VICK VICK CLK CLK VSS |VID (AC)| 0 V Differential VISO VSS VID (AC) |
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