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GP2021 bảng dữ liệu(PDF) 44 Page - Mitel Networks Corporation |
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GP2021 bảng dữ liệu(HTML) 44 Page - Mitel Networks Corporation |
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44 / 62 page ![]() 44 GP2021 PIN TYPES The following Table defines the type of each pin and additional notes relating to them. Pin No Pin Name Pin Type Input Type Pull Up/Dn O/P Type Tri–State Notes 1 MULTI_FN_IO I/O ST2 75k dn OPT3 YES 1 2 POWER_GOOD IP ST2 none – – 3 NRESET_OP OP – – OP3 NO 4 NARMSYSIP ST2 none – – 5 XIN IP XTLI none – – Xtal In 6 XOUT OP – – XTLO NO Xtal Out 7 TXA OP – – OP6 NO 8 TXB OP – – OP6 NO 9 RXA IP ST2 none – – 10 RXB IP ST2 none – – 11 NROM / NC OP – – OPT6 YES 9 12 NEEPROM / NC OP – – OPT6 YES 8 13 NSPARE_CS / NC OP – – OPT6 YES 9 14 V DD V DD – – – – 15 V SS V SS – – – – 16 NRAM / NC OP – – OP6 NO 10 17 NW0 / NCOP – – OP6 NO 11 18 NW1 / NCOP – – OP6 NO 10 19 NW2 / NCOP – – OP6 NO 10 20 NW3 / NCOP – – OP6 NO 10 21 NRD / NCOP – OP6 NO 11 22 ARM_ALE / NC OP – – OP6 NO 8 23 DBE / NC OP – – OP6 NO 8 24 ACCUM_INT OP – – OPT1/OPT2 YES 2, 6 25 MEAS_INTOP – – OPT1/OPT2 YES 2, 7 26 NBW / WRPROG IP TTL none – – 27 NMREQ / DISCIP2 IP TTL none – – 28 NOPC / NINTELMOT IP TTL none – – 29 NRW / DISCIP3 IP TTL none – – 30 MCLK / NC OP – – OP6 NO 8 31 ABORT / MICRO_CLK OP – – OP3 NO 32 DISCIO I/O ST2 none OPT3 YES 33 A22 / READ IP TTL/ST2 none – – 3 34 V DD V DD – – – – 35 V SS V SS – – – – 36 A21 / NCS IP TTL/ST2 none – – 3 37 A20 / WREN IP TTL/ST2 none – – 3 38 A9 IP TTL none – – 39 A8 IP TTL none – – 40 A7 IP TTL none – – 41 A6 IP TTL none – – 42 A5 IP TTL none – – 43 A4 IP TTL none – – 44 A3 IP TTL none – – |
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