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SN74ACT8990 bảng dữ liệu(PDF) 10 Page - Texas Instruments |
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SN74ACT8990 bảng dữ liệu(HTML) 10 Page - Texas Instruments |
10 / 15 page SN54ACT8990, SN74ACT8990 TEST-BUS CONTROLLERS IEEE STD 1149.1 (JTAG) TAP MASTERS WITH 16-BIT GENERIC HOST INTERFACES SCAS190E – JUNE 1990 – REVISED JANUARY 1997 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended ranges of supply voltage and operating free-air temperature (continued) (see Figure 1) PARAMETER FROM TO SN54ACT8990 SN74ACT8990 UNIT PARAMETER (INPUT) (OUTPUT) MIN MAX MIN MAX UNIT tPZH TOFF ↑ TMS/EVENT 2.3 15.3 2.3 13.8 ns tPZL TOFF ↑ TMS/EVENT 2.7 16.4 2.7 13.9 ns tPHZ RD ↑ DATA 3.8 18.4 3.8 15.4 ns tPLZ RD ↑ DATA 4.1 17.1 4.1 14.8 ns tPHZ TCKI ↓ TCKO 6.7 20.4 6.7 19.8 ns tPLZ TCKI ↓ TCKO 4.8 21.1 4.8 20.4 ns tPHZ TCKI ↓ TDO 5.1 21.7 5.1 21.3 ns tPLZ TCKI ↓ TDO 5 20.7 5 20.3 ns tPHZ TCKI ↓ TMS 6.9 22.4 6.9 21.9 ns tPLZ TCKI ↓ TMS 4.6 20.6 4.6 20.1 ns tPHZ TCKI ↓ TMS/EVENT 4.7 22.5 4.7 22.1 ns tPLZ TCKI ↓ TMS/EVENT 2.8 20.5 2.8 20.1 ns tPHZ TOFF ↓ TCKO 5 15.6 5 15.4 ns tPLZ TOFF ↓ TCKO 4.4 15.5 4.4 15.3 ns tPHZ TOFF ↓ TDO 5.6 16.6 5.6 16.5 ns tPLZ TOFF ↓ TDO 4.6 15.4 4.6 15.4 ns tPHZ TOFF ↓ TMS 4.8 19.1 4.8 17.1 ns tPLZ TOFF ↓ TMS 4.4 17 4.4 15.8 ns tPHZ TOFF ↓ TMS/EVENT 4.5 18.8 4.5 17.3 ns tPLZ TOFF ↓ TMS/EVENT 2.4 17.1 2.4 16.2 ns tPHZ TRST ↓ DATA 5.7 23 5.7 20.8 ns tPLZ TRST ↓ DATA 4.2 20.3 4.2 20 ns tPHZ TRST ↓ INT 6 19.6 8 19.5 ns tPLZ TRST ↓ INT 6.1 18 6.1 17.8 ns tPHZ TRST ↓ RDY 6.5 18.8 6.5 18.7 ns tPLZ TRST ↓ RDY 4.8 17.8 4.8 17.8 ns tPHZ TRST ↓ TMS/EVENT 6 21.1 6 21.1 ns tPLZ TRST ↓ TMS/EVENT 4.2 20 4.2 19.9 ns |
Số phần tương tự - SN74ACT8990 |
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Mô tả tương tự - SN74ACT8990 |
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