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SN74ALVC7814 Fiches technique(PDF) 7 Page - Texas Instruments |
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SN74ALVC7814 Fiches technique(HTML) 7 Page - Texas Instruments |
7 / 11 page SN74ALVC7814 64 × 18 LOW-POWER FIRST-IN, FIRST-OUT MEMORY SCAS592A – OCTOBER 1997 – REVISED APRIL 1998 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating conditions (see Figures 1 through 3) ’ALVC7814-25 ’ALVC7814-40 UNIT MIN MAX MIN MAX UNIT fclock Clock frequency 40 25 MHz D0–D17 high or low 8 12 LDCK high or low 8 12 tw Pulse duration UNCK high or low 8 12 ns PEN low 8 12 RESET low 10 12 D0–D17 before LDCK ↑ 5 5 tsu Setup time LDCK inactive before RESET high 6 6 ns PEN before LDCK ↑ 8 8 D0–D17 after LDCK ↑ 0 0 th Hold time PEN high after LDCK low 0 0 ns th Hold time PEN low after LDCK ↑ 3 3 ns LDCK inactive after RESET high 6 6 switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 3) PARAMETER FROM TO ’ALVC7814-25 ’ALVC7814-40 UNIT PARAMETER (INPUT) (OUTPUT) MIN MAX MIN MAX UNIT fmax LDCK or UNCK 40 25 MHz t d LDCK ↑ Any Q 9 22 9 24 ns tpd UNCK ↑ Any Q 6 18 6 20 ns tPLH LDCK ↑ EMPTY 6 17 6 19 ns tPHL UNCK ↑ EMPTY 6 17 6 19 ns tPHL RESET low EMPTY 4 18 4 20 ns tPLH UNCK ↑ FULL 6 17 6 19 ns tPLH RESET low FULL 4 20 4 22 ns tPHL LDCK ↑ FULL 6 17 6 19 ns t d LDCK ↑ AF/AE 7 20 7 22 ns tpd UNCK ↑ AF/AE 7 20 7 22 ns tPLH RESET low AF/AE 2 12 2 14 ns tPLH LDCK ↑ HF 5 20 5 22 ns tPHL UNCK ↑ HF 7 20 7 22 ns tPHL RESET low HF 3 14 3 16 ns ten OE Any Q 2 10 2 11 ns tdis OE Any Q 2 11 2 12 ns operating characteristics, VCC = 3.3 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance per FIFO channel Outputs enabled CL = 50 pF, f = 5 MHz 53 pF |
Numéro de pièce similaire - SN74ALVC7814 |
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Description similaire - SN74ALVC7814 |
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