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TRS3238CDBG4 Datasheet(PDF) 7 Page - Texas Instruments |
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TRS3238CDBG4 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 19 page www.ti.com RECEIVER SECTION Electrical Characteristics (1) Switching Characteristics (1) TRS3238 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD (HBM) PROTECTION SLLS817 – JULY 2007 over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6) PARAMETER TEST CONDITIONS MIN TYP(2) MAX UNIT VOH High-level output voltage IOH = –1 mA VCC – 0.6 VCC – 0.1 V VOL Low-level output voltage IOH = 1.6 mA 0.4 V VCC = 3.3 V 1.5 2.4 VIT+ Positive-going input threshold voltage V VCC = 5 V 1.8 2.4 VCC = 3.3 V 0.6 1.2 VIT– Negative-going input threshold voltage V VCC = 5 V 0.8 1.5 Vhys Input hysteresis (VIT+ – VIT– ) 0.3 V Ioff Output leakage current (except ROUT1B) FORCEOFF = 0 V ±0.05 ±10 μA rI Input resistance VI = ±3 V to ±25 V 3 5 7 k Ω (1) Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V. (2) All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C. over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS TYP(2) UNIT Propagation delay time, low- to high-level tPLH CL = 150 pF, See Figure 3 150 ns output Propagation delay time, high- to low-level tPHL CL = 150 pF, See Figure 3 150 ns output CL = 150 pF, RL = 3 kΩ, ten Output enable time 200 ns See Figure 4 tdis Output disable time CL = 150 pF, RL = 3 kΩ, See Figure 4 200 ns tsk(p) Pulse skew(3) See Figure 3 50 ns (1) Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V. (2) All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C. (3) Pulse skew is defined as |tPLH – tPHL| of each channel of the same device. 7 Submit Documentation Feedback |
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