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IDT74FCT645TPB Datasheet(PDF) 6 Page - Integrated Device Technology |
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IDT74FCT645TPB Datasheet(HTML) 6 Page - Integrated Device Technology |
6 / 8 page 6.9 6 IDT54/74FCT245T/AT/CT/DT - 2245T/AT/CT, IDT54/74FCT640T/AT/CT, IDT54/74FCT645T/AT/CT/DT FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES SWITCHING CHARACTERISTICS OVER OPERATING RANGE FCT645T FCT645AT Com'l. Mil. Com'l. Mil. Symbol Parameter Conditions(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit tPLH tPHL Propagation Delay A to B, B to A CL = 50 pF RL = 500 Ω 1.5 9.5 1.5 11.0 1.5 4.6 1.5 4.9 ns tPZH tPZL Output Enable Time OE to A or B 1.5 11.0 1.5 12.0 1.5 6.2 1.5 6.5 ns tPHZ tPLZ Output Disable Time OE to A or B 1.5 12.0 1.5 13.0 1.5 5.0 1.5 6.0 ns tPZH tPZL Output Enable Time T/ R to A or B(3) 1.5 11.0 1.5 12.0 1.5 6.2 1.5 6.5 ns tPHZ tPLZ Output Disable Time T/ R to A or B(3) 1.5 12.0 1.5 13.0 1.5 5.0 1.5 6.0 ns 2534 tbl 12 FCT645CT FCT645DT Com'l. Mil. Com'l. Mil. Symbol Parameter Conditions(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit tPLH tPHL Propagation Delay A to B, B to A CL = 50 pF RL = 500 Ω 1.5 4.1 1.5 4.5 1.5 3.8 — — ns tPZH tPZL Output Enable Time OE to A or B 1.5 5.8 1.5 6.2 1.5 5.0 — — ns tPHZ tPLZ Output Disable Time OE to A or B 1.5 4.8 1.5 5.2 1.5 4.3 — — ns tPZH tPZL Output Enable Time T/ R to A or B(3) 1.5 5.8 1.5 6.2 1.5 5.0 — — ns tPHZ tPLZ Output Disable Time T/ R to A or B(3) 1.5 4.8 1.5 5.2 1.5 4.3 — — ns NOTES: 2534 tbl 13 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not tested. |
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