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EPLD Datasheet(PDF) 31 Page - Altera Corporation |
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EPLD Datasheet(HTML) 31 Page - Altera Corporation |
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31 / 42 page ![]() Altera Corporation 775 Classic EPLD Family Data Sheet Notes to tables: (1) These values are specified in Table 15 on page 770. (2) See Application Note 78 (Understanding MAX 5000 & Classic Timing) in this data book for information on internal timing parameters. (3) The non-Turbo adder must be added to this parameter when the Turbo Bit option is off. (4) Sample-tested only for an output change of 500 mV. (5) The fMAX values represent the highest frequency for pipelined data. (6) Measured with the device programmed as a 24-bit counter. (7) Sample-tested only. This parameter is a guideline based on extensive device characterization and applies for both global and array clocking. Table 22. EP910I Internal Timing Parameters Symbol Parameter Condition EP910I-12 EP910I-15 EP910I-25 Unit Min Max Min Max Min Max tIN Input pad and buffer delay 2.0 3.0 2.0 ns tIO I/O input pad and buffer delay 0.0 0.0 0.0 ns tLAD Logic array delay 8.0 9.0 17.0 ns tOD Output buffer and pad delay C1 = 35 pF 2.0 3.0 6.0 ns tZX Output buffer enable delay C1 = 35 pF 5.0 6.0 9.0 ns tXZ Output buffer disable delay C1 = 5 pF 5.0 6.0 9.0 ns tSU Register setup time 4.0 5.0 5.0 ns tH Register hold time 4.0 6.0 11.0 ns tIC Array clock delay 12.0 12.0 14.0 ns tICS Global clock delay 4.0 3.0 6.0 ns tFD Feedback delay 1.0 1.0 3.0 ns tCLR Register clear time 11.0 12.0 20.0 ns |
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