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74HC7245 Datasheet(PDF) 6 Page - NXP Semiconductors |
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74HC7245 Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 7 page December 1990 6 Philips Semiconductors Product specification Octal bus Schmitt-trigger transceiver; 3-state 74HC/HCT7245 AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr =tf = 6 ns; CL = 50 pF SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITIONS 74HCT VCC (V) WAVEFORMS +25 −40 to +85 −40 to +125 min. typ. max. min. max. min. max. tPHL/ tPLH propagation delay An to Bn; Bn to An 17 30 37 45 ns 4.5 Fig.7 tPZH/ tPZL 3-state output enable time OE to An; OE to Bn 19 32 40 48 ns 4.5 Fig.7 tPHZ/ tPLZ 3-state output disable time OE to An; OE to Bn 19 32 40 48 ns 4.5 Fig.7 tTHL/ tTLH output transition time 5 12 15 18 ns 4.5 Fig.7 TRANSFER CHARACTERISTIC WAVEFORMS Fig.4 Transfer characteristic. handbook, halfpage MBA325 V T V T V H V I VO Fig.5 Waveforms showing the definition of VT+, VT − and VH. handbook, halfpage MBA324 V T V T V H V I VO |
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