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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SN74LVC74ADE4 датащи(PDF) 5 Page - Texas Instruments |
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SN74LVC74ADE4 датащи(HTML) 5 Page - Texas Instruments |
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5 / 27 page  SN54LVC74A, SN74LVC74A www.ti.com SCAS287T – JANUARY 1993 – REVISED JULY 2013 Timing Requirements over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) SN74LVC74A –40°C to 125°C –40°C to 125°C –40°C to 85°C –40°C to 85°C Recommended Recommended UNIT VCC = 1.8 V VCC = 1.8 V VCC = 2.5 V VCC = 2.5 V ± 0.15 V ± 0.15 V ± 0.2 V ± 0.2 V MIN MAX MIN MAX MIN MAX MIN MAX fclock Clock frequency 83 83 83 83 MHz PRE or CLR low 4.1 4.1 3.3 3.3 tw Pulse duration ns CLK high or low 4.1 4.1 3.3 3.3 Data 3.6 3.6 2.3 2.3 tsu Setup time before CLK ↑ ns PRE or CLR inactive 2.7 2.7 1.9 1.9 th Hold time, data after CLK ↑ 1 1 1 1 ns Timing Requirements over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) SN74LVC74A –40°C to 125°C –40°C to 125°C –40°C to 85°C –40°C to 85°C Recommended Recommended UNIT VCC = 3.3 V VCC = 3.3 V VCC = 2.7 V VCC = 2.7 V ± 0.3 V ± 0.3 V MIN MAX MIN MAX MIN MAX MIN MAX fclock Clock frequency 83 83 150 100 MHz PRE or CLR low 3.3 3.3 3.3 3.3 tw Pulse duration ns CLK high or low 3.3 3.3 3.3 3.3 Data 3.4 3.4 3 3 tsu Setup time before CLK ↑ ns PRE or CLR inactive 2.2 2.2 2 2 th Hold time, data after CLK ↑ 1 1 0 1 ns Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) SN54LVC74A FROM TO VCC = 3.3 V PARAMETER VCC = 2.7 V UNIT (INPUT) (OUTPUT) ± 0.3 V MIN MAX MIN MAX fmax 83 100 MHz CLK 6 1 5.2 tpd Q or Q ns PRE or CLR 6.4 1 5.4 Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) SN74LVC74A –40°C to 125°C –40°C to 125°C –40°C to 85°C –40°C to 85°C FROM TO Recommended Recommended PARAMETER UNIT (INPUT) (OUTPUT) VCC = 1.8 V VCC = 1.8 V VCC = 2.5 V VCC = 2.5 V ± 0.15 V ± 0.15 V ± 0.2 V ± 0.2 V MIN MAX MIN MAX MIN MAX MIN MAX fmax 83 83 83 83 MHz CLK 1 7.1 1 7.1 1 4.4 1 4.4 tpd Q or Q ns PRE or CLR 1 6.9 1 6.9 1 4.6 1 4.6 tsk(o) ns Copyright © 1993–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: SN54LVC74A SN74LVC74A |
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