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SN74ACT7204L50RJ Datasheet(PDF) 10 Page - Texas Instruments |
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SN74ACT7204L50RJ Datasheet(HTML) 10 Page - Texas Instruments |
10 / 22 page SN74ACT7203L, SN74ACT7204L, SN74ACT7205L, SN74ACT7206L 2048 × 9, 4096 × 9, 8192 × 9, 16384 × 9 ASYNCHRONOUS FIRST IN, FIRST OUT MEMORIES SCAS226A − FEBRUARY 1993 − REVISED SEPTEMBER 1995 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 switching characteristics over recommended ranges of supply voltage and operating free-air temperature (see Figure 13) PARAMETER FIGURE ′ACT7203L-15 ′ACT7204L-15 ′ACT7205L-15 ′ACT7206L-15 ′ACT7203L-25 ′ACT7204L-25 ′ACT7205L-25 ′ACT7206L-25 ′ACT7203L-50 ′ACT7204L-50 ′ACT7205L-50 ′ACT7206L-50 UNIT MIN MAX MIN MAX MIN MAX ta Access time, R ↓ or EF↑ to data out valid 1(a), 3, 5 15 25 50 ns tv(RH) Valid time, data out valid after R ↑ 1(a) 5 5 5 ns ten(R-QX) Enable time, R ↓ to Q outputs at low impedance† 1(a) 5 5 10 ns ten(W-QX) Enable time, W ↑ to Q outputs at low impedance†‡ 5 5 5 15 ns tdis(R) Disable time, R ↑ to Q outputs at high impedance† 1(a) 15 18 30 ns tw(FH) Pulse duration, FF high in automatic-write mode 6 15 25 45 ns tw(EH) Pulse duration, EF high in automatic-read mode 5 15 25 45 ns tpd(W-F) Propagation delay time, W ↓ to FF low 2 15 25 45 ns tpd(R-F) Propagation delay time, R ↑ to FF high 2, 6, 12 15 25 45 ns tpd(RS-F) Propagation delay time, RS ↓ to FF high 7 25 35 65 ns tpd(RS-HF) Propagation delay time, RS ↓ to XO/HF high 7 25 35 65 ns tpd(W-E) Propagation delay time, W ↑ to EF high 3, 5, 11 15 25 45 ns tpd(R-E) Propagation delay time, R ↓ to EF low 3 15 25 45 ns tpd(RS-E) Propagation delay time, RS ↓ to EF low 7 25 35 65 ns tpd(W-HF) Propagation delay time, W ↓ to XO/HF low 8 25 35 65 ns tpd(R-HF) Propagation delay time, R ↑ to XO/HF high 8 25 35 65 ns tpd(R-XOL) Propagation delay time, R ↓ to XO/HF low 9 15 25 50 ns tpd(W-XOL) Propagation delay time, W ↓ to XO/HF low 9 15 25 50 ns tpd(R-XOH) Propagation delay time, R ↑ to XO/HF high 9 15 25 50 ns tpd(W-XOH) Propagation delay time, W ↑ to XO/HF high 9 15 25 50 ns tpd(RT-FL) Propagation delay time, FL/RT ↓ to HF, EF, FF valid 4 25 35 65 ns † These values are characterized but not currently tested. ‡ Only applies when data is automatically read |
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