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SN74ALS299NSRE4 датащи(PDF) 5 Page - Texas Instruments |
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SN74ALS299NSRE4 датащи(HTML) 5 Page - Texas Instruments |
5 / 17 page SN54ALS299, SN74ALS299 8-BIT UNIVERSAL SHIFT/STORAGE REGISTERS WITH 3-STATE OUTPUTS SDAS220B – DECEMBER 1982 – REVISED DECEMBER 1994 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) SN54ALS299 SN74ALS299 UNIT MIN MAX MIN MAX UNIT fclock Clock frequency (at 50% duty cycle) 0 17 0 30 MHz t Pulse duration CLK high or low 22 16.5 ns tw Pulse duration CLR low 12 10 ns ↑ S0 or S1 25 20 t Setup time before CLK ↑ Serial or parallel data High 18 16 ns tsu Serial or parallel data Low 15 6 ns Inactive-state setup time before CLK ↑† CLR 15 15 th Hold time after CLK ↑ S0 or S1 0 0 ns th Hold time after CLK ↑ Serial or parallel data 0 0 ns † Inactive-state setup time is also referred to as recovery time. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX‡ UNIT SN54ALS299 SN74ALS299 MIN MAX MIN MAX fmax 17 30 MHz tPLH CLK QQ 2 19 4 13 ns tPHL CLK QA– QH 4 25 7 19 ns tPLH CLK Q ′ or Q ′ 2 21 5 15 ns tPHL CLK QA ′ or QH′ 4 25 8 18 ns tPHL CLR QA –QH 6 29 6 22 ns tPHL CLR QA ′ or QH′ 6 29 6 22 ns tPZH OE1 OE2 QQ 5 22 6 16 ns tPZL OE1, OE2 QA – QH 6 27 8 22 ns tPZH S0 S1 QQ 5 27 7 17 ns tPZL S0, S1 QA – QH 6 26 8 22 ns tPHZ OE1 OE2 QQ 1 15 1 8 ns tPLZ OE1, OE2 QA – QH 4 38 5 15 ns tPHZ S0 S1 QA QH 1 16 1 12 ns tPLZ S0, S1 QA – QH 4 34 8 25 ns ‡ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
Аналогичный номер детали - SN74ALS299NSRE4 |
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Аналогичное описание - SN74ALS299NSRE4 |
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