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TMS27C256-20JL Datasheet(PDF) 6 Page - Texas Instruments |
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TMS27C256-20JL Datasheet(HTML) 6 Page - Texas Instruments |
6 / 13 page TMS27C256 32768 BY 8BIT UV ERASABLE TMS27PC256 32768 BY 8BIT PROGRAMMABLE READONLY MEMORIES SMLS256H− SEPTEMBER 1984 − REVISED NOVEMBER 1997 6 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 logic symbol† 14 [PWR DWN] & EN A A A A A A A A A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 E G 10 9 8 7 6 5 4 3 25 24 21 23 2 26 27 20 22 EPROM 32 768 × 8 11 12 13 15 16 17 18 19 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 A 0 32 767 0 A 0 32 767 A A A A A A A A 14 [PWR DWN] & EN A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 E G 10 9 8 7 6 5 4 3 25 24 21 23 2 26 27 20 22 OTP PROM 32 768 × 8 11 12 13 15 16 17 18 19 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 0 † These symbols are in accordance with ANSI / IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for J package. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, VCC (see Note 1) : −0.6 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supply voltage range, VPP : −0.6 V to 14 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range (see Note 1): All inputs except A9 : −0.6 V to VCC + 1 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . A9 : −0.6 V to 13.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage range (see Note 1) : −0.6 V to VCC + 1 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range (’27C256-_ _JL, ’27PC256-_ _FML) TA :0°C to 70°C . . . . . . . . . . . . . . Operating free-air temperature range (’27C5256-_ _JE, ’27PC256-_ _FME) TA :−40°C to 85°C . . . . . . . . . . . Storage temperature range, Tstg :−65°C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: All voltage values are with respect to GND. |
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