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SN74ABTR2245DB 数据表(PDF) 5 Page - Texas Instruments |
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SN74ABTR2245DB 数据表(HTML) 5 Page - Texas Instruments |
5 / 8 page SN54ABTR2245, SN74ABTR2245 OCTAL TRANSCEIVERS AND LINE/MEMORY DRIVERS WITH 3-STATE OUTPUTS SCBS680A – MARCH 1997 – REVISED MAY 1997 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS TA = 25°C SN54ABTR2245 SN74ABTR2245 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN MAX MIN MAX UNIT VIK VCC = 4.5 V, II = –18 mA –1.2 –1.2 –1.2 V VCC = 4.5 V, IOH = –1 mA 3.35 3.3 3.35 VOH VCC = 5 V, IOH = –1 mA 3.85 3.8 3.85 V VOH VCC =4 5V IOH = –3 mA 3 3.1 V VCC = 4.5 V IOH = –12 mA 2.6 2.6 VOL VCC =4 5V IOL = 8 mA 0.65 0.8 0.65 V VOL VCC = 4.5 V IOL = 12 mA 0.8 0.8 V Vhys 100 mV II Control inputs VCC = 0 to 5.5 V, VI = VCC or GND ±1 ±1 ±1 µA II A or B ports VCC = 2.1 V to 5.5 V, VI = VCC or GND ±20 ±20 ±20 µA IOZH‡ VCC = 2.1 V to 5.5 V, VO = 2.7 V, OE ≥ 2 V 10 10 10 µA IOZL‡ VCC = 2.1 V to 5.5 V, VO = 0.5 V, OE ≥ 2 V –10 –10 –10 µA IOZPU§ VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V, OE = X ±50 ±50 ±50 µA IOZPD§ VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V, OE = X ±50 ±50 ±50 µA Ioff VCC = 0, VI or VO ≤ 4.5 V ±100 ±100 µA ICEX VCC = 5.5 V, VO = 5.5 V Outputs high 50 50 50 µA IO¶ VCC = 5.5 V, VO = 2.5 V –25 –100 –25 –100 –25 –100 mA VCC = 5.5 V, Outputs high 1 250 250 250 µA ICC A or B ports VCC = 5.5 V, IO = 0, Outputs low 24 32 32 32 mA VI = VCC or GND Outputs disabled 0.5 250 250 250 µA Data inputs VCC = 5.5 V, One input at 3.4 V, Outputs enabled 1.5 1.5 1.5 ∆ICC# Data inputs , Other inputs at VCC or GND Outputs disabled 0.05 0.05 0.05 mA Control inputs VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND 1.5 1.5 1.5 Ci VI = 2.5 V or 0.5 V 3 pF Cio VO = 2.5 V or 0.5 V 6 pF * On products compliant to MIL-PRF–38535, this parameter does not apply. † All typical values are at VCC = 5 V. ‡ The parameters IOZH and IOZL include the input leakage current. § This parameter is characterized but not production tested. ¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second. # This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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