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GAL16V8B-10LJI Datasheet(PDF) 13 Page - Lattice Semiconductor |
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GAL16V8B-10LJI Datasheet(HTML) 13 Page - Lattice Semiconductor |
13 / 23 page Specifications GAL16V8 1996 Data Book 3-77 Specifications GAL16V8B AC SWITCHING CHARACTERISTICS Over Recommended Operating Conditions tpd A Input or I/O to 8 outputs switching 3 7.5 3 10 3 15 3 20 3 25 ns Comb. Output 1 output switching — 7 — — — — — — — — ns tco A Clock to Output Delay 2 5 2 7 2 10 2 11 2 12 ns tcf2 — Clock to Feedback Delay — 3 — 6 — 8 — 9 — 10 ns tsu — Setup Time, Input or Fdbk before Clk ↑ 7 — 10 — 12 — 13 — 15 — ns th — Hold Time, Input or Fdbk after Clk ↑ 0 — 0 — 0— 0— 0 — ns A Maximum Clock Frequency with 83.3 — 58.8 — 45.5 — 41.6 — 37 — MHz External Feedback, 1/(tsu + tco) fmax3 A Maximum Clock Frequency with 100 — 62.5 — 50 — 45.4 — 40 — MHz Internal Feedback, 1/(tsu + tcf) A Maximum Clock Frequency with 100 — 62.5 — 62.5 — 50 — 41.6 — MHz No Feedback twh — Clock Pulse Duration, High 5 — 8 — 8 — 10 — 12 — ns twl — Clock Pulse Duration, Low 5 — 8 — 8 — 10 — 12 — ns ten B Input or I/O to Output Enabled 3 9 3 10 — 15 — 20 — 25 ns B OE to Output Enabled 2 6 2 10 — 15 — 18 — 20 ns tdis C Input or I/O to Output Disabled 2 9 2 10 — 15 — 20 — 25 ns C OE to Output Disabled 1.5 6 1.5 10 — 15 — 18 — 20 ns UNITS 1) Refer to Switching Test Conditions section. 2) Calculated from fmax with internal feedback. Refer to fmax Descriptions section. 3) Refer to fmax Descriptions section. -25 MIN. MAX. -20 MIN. MAX. -15 MIN. MAX. -10 MIN. MAX. PARAM. DESCRIPTION TEST COND1. -7 MIN. MAX. CAPACITANCE (T A = 25°C, f = 1.0 MHz) SYMBOL PARAMETER MAXIMUM* UNITS TEST CONDITIONS C I Input Capacitance 8 pF V CC = 5.0V, VI = 2.0V C I/O I/O Capacitance 8 pF V CC = 5.0V, VI/O = 2.0V *Guaranteed but not 100% tested. COM COM / IND COM / IND IND COM / IND |
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