전자부품 데이터시트 검색엔진 |
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SN74ACT2236-20FN 데이터시트(PDF) 8 Page - Texas Instruments |
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SN74ACT2236-20FN 데이터시트(HTML) 8 Page - Texas Instruments |
8 / 14 page SN74ACT2236 1024 × 9 × 2 ASYNCHRONOUS BIDIRECTIONAL FIRST IN, FIRST OUT MEMORY SCAS149A − APRIL 1990 − REVISED SEPTEMBER 1995 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 recommended operating conditions ′ACT2236-20 ′ACT2236-30 ′ACT2236-40 ′ACT2236-60 UNIT MIN MAX MIN MAX MIN MAX MIN MAX UNIT VCC Supply voltage 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 V VIH High-level input voltage 2 2 2 2 V VIL Low-level input voltage 0.8 0.8 0.8 0.8 V IOH High-level output cur- A or B ports −8 −8 −8 −8 mA IOH High-level output cur- rent Status flags −8 −8 −8 −8 mA IOL Low-level output current A or B ports 16 16 16 16 mA IOL Low-level output current Status flags 8 8 8 8 mA fclock Clock frequency LDCKA or LDCKB 50 33 25 16.7 MHz fclock Clock frequency UNCKA or UNCKB 50 33 25 16.7 MHz RSTA or RSTB low 20 20 25 25 LDCKA or LDCKB low 8 10 14 20 tw Pulse duration LDCKA or LDCKB high 8 10 14 20 ns tw Pulse duration UNCKA or UNCKB low 8 10 14 20 ns UNCKA or UNCKB high 8 10 14 20 DAF or DBF high 10 10 10 10 Data before LDCKA or LDCKB ↑ 4 4 5 5 Define AF/AE: D0 − D8 before DAF or DBF ↓ 5 5 5 5 tsu Setup time Define AF/AE: DAF or DBF ↓ before RSTA or RSTB ↑ 7 7 7 7 ns tsu Setup time Define AF/AE (default): DAF or DBF high before RSTA or RSTB ↑ 5 5 5 5 ns RSTA or RSTB inactive (high) before LDCKA or LDCKB ↑ 5 5 5 5 Data after LDCKA or LDCKB ↑ 1 1 2 2 Define AF/AE: D0 − D8 after DAF or DBF ↓ 0 0 0 0 th Hold time Define AF/AE: DAF or DBF low after RSTA or RSTB ↑ 0 0 0 0 ns Define AF/AE (default): DAF or DBF high after RSTA or RSTB ↑ 0 0 0 0 TA Operating free-air temperature 0 70 0 70 0 70 0 70 °C |
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유사한 설명 - SN74ACT2236-20FN |
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