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IDT74FCT245T Datasheet(PDF) 5 Page - Integrated Device Technology |
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IDT74FCT245T Datasheet(HTML) 5 Page - Integrated Device Technology |
5 / 8 page 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 6.9 5 SWITCHING CHARACTERISTICS OVER OPERATING RANGE 2534 tbl 09 SWITCHING CHARACTERISTICS OVER OPERATING RANGE 2534 tbl 10 FCT245T FCT2245T FCT245AT FCT2245AT 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 7.0 1.5 7.5 1.5 4.6 1.5 4.9 ns tPZH tPZL Output Enable Time OE to A or B 1.5 9.5 1.5 10.0 1.5 6.2 1.5 6.5 ns tPHZ tPLZ Output Disable Time OE to A or B 1.5 7.5 1.5 10.0 1.5 5.0 1.5 6.0 ns tPZH tPZL Output Enable Time T/ R to A or B(3) 1.5 9.5 1.5 10.0 1.5 6.2 1.5 6.5 ns tPHZ tPLZ Output Disable Time T/ R to A or B(3) 1.5 7.5 1.5 10.0 1.5 5.0 1.5 6.0 ns FCT245CT FCT2245CT FCT245DT 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 FCT640T FCT640AT FCT640CT Com'l. Mil. Com'l. Mil. Com'l. Mil. Symbol Parameter Conditions(1) Min.(2) Max. Min.(2) Max. 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 2.0 7.0 2.0 8.0 1.5 5.0 1.5 5.3 1.5 4.4 1.5 4.7 ns tPZH tPZL Output Enable Time OE to A or B 2.0 13.0 2.0 16.0 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.2 ns tPHZ tPLZ Output Disable Time OE to A or B 2.0 10.0 2.0 12.0 1.5 5.0 1.5 6.0 1.5 4.8 1.5 5.2 ns tPZH tPZL Output Enable Time T/ R to A or B(3) 2.0 13.0 2.0 16.0 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.2 ns tPHZ tPLZ Output Disable Time T/ R to A or B(3) 2.0 10.0 2.0 12.0 1.5 5.0 1.5 6.0 1.5 4.8 1.5 5.2 ns NOTES: 2534 tbl 11 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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