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74LV244AT Arkusz danych(PDF) 4 Page - Texas Instruments |
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74LV244AT Arkusz danych(HTML) 4 Page - Texas Instruments |
4 / 17 page www.ti.com Electrical Characteristics Switching Characteristics Noise Characteristics (1) SN74LV244AT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCES572C – JUNE 2004 – REVISED AUGUST 2005 over recommended operating free-air temperature range (unless otherwise noted) TA = –40°C TA = 25°C to 85 °C PARAMETER TEST CONDITIONS VCC UNIT MIN TYP MAX MIN MAX IOH = –50 µA 4.5 V 4.4 4.5 4.4 VOH V IOH = –16 mA 4.5 V 3.8 3.8 IOL = 50 µA 4.5 V 0 0.1 0.1 VOL V IOL = 16 mA 4.5 V 0.55 0.55 II VI = 5.5 V or GND 0 to 5.5 V ±0.1 ±1 µA IOZ VO = VCC or GND 5.5 V ±0.25 ±2.5 µA ICC VI = VCC or GND, IO = 0 5.5 V 2 20 µA ∆I CC (1) One input at 3.4 V, Other inputs at VCC or GND 5.5 V 1.35 1.5 mA Ioff VI or VO = 0 to 5.5 V 0 0.5 5 µA Ci VI = VCC or GND 4.5 pF (1) This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC. over recommended operating free-air temperature range, V CC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C FROM TO LOAD PARAMETER MIN MAX UNIT (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX tPLH 2.6 5/4 7.4 1 8.5 A or B B or A CL = 15 pF ns tPHL 2.4 5.4 7.4 1 8.5 tPZH 2.2 7.7 10.4 1 12 OE A or B CL = 15 pF ns tPZL 2.7 7.7 10.4 1 12 tPHZ 2.2 3.9 7.7 1 8 OE A or B CL = 15 pF ns tPLZ 2.5 3.9 7.7 1 8 tPLH 4 5.9 8.9 1 9.5 A or B B or A CL = 50 pF ns tPHL 4.7 5.9 8.9 1 9.5 tPZH 3.9 8.2 11.4 1 13 OE A or B CL = 50 pF ns tPZL 4.9 8.2 11.4 1 13 tPHZ 3.3 8.8 11.4 1 13 OE A or B CL = 50 pF ns tPLZ 3.2 8.8 11.4 1 13 tsk(o) CL = 50 pF 1 1 ns V CC = 5 V, CL = 50 pF TA = 25°C PARAMETER UNIT MIN TYP MAX VOL(P) Quiet output, maximum dynamic VOL 0.8 1 V VOL(V) Quiet output, minimum dynamic VOL –0.8 –1 V VOH(V) Quiet output, minimum dynamic VOH 4 V VIH(D) High-level dynamic input voltage 2 V VIL(D) Low-level dynamic input voltage 0.8 V (1) Characteristics are for surface-mount packages only. 4 |
Podobny numer części - 74LV244AT |
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Podobny opis - 74LV244AT |
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