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TMS28F008AST 데이터시트(PDF) 27 Page - Texas Instruments |
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TMS28F008AST 데이터시트(HTML) 27 Page - Texas Instruments |
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27 / 52 page ![]() TMS28F008Axy,TMS28F800Axy 1048576 BY 8BIT/524288 BY 16BIT AUTOSELECT BOOT BLOCK FLASH MEMORIES SMJS851A − NOVEMBER 1997 − REVISED MARCH 1998 27 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 recommended operating conditions MIN NOM MAX UNIT 3 VCC 2.7 3 3.6 VCC Supply voltage During write/read/erase/erase suspend 3.3 VCC 3 3.3 3.6 V VCC Supply voltage During write/read/erase/erase suspend 5 VCC 4.5 5 5.5 V During read only (VPPL) 0 6.5 V VPP Supply voltage During write/erase/erase suspend, VPP can have VCC 3 VPP 3.0 3.3 3.6 VPP Supply voltage During write/erase/erase suspend, VPP can have VCC as MIN or NOM 5 VPP 4.5 5 5.5 V as MIN or NOM 12 VPP 11.4 12 12.6 V VIH High-level dc input voltage TTL 2 VCC + 0.5 V VIH High-level dc input voltage CMOS VCC − 0.2 VCC + 0.2 V VIL Low-level dc input voltage TTL − 0.5 0.8 V VIL Low-level dc input voltage CMOS VSS − 0.2 VSS + 0.2 V VLKO VCC lock-out voltage from write/erase (see Note 7) 1.2 V VHH RP unlock voltage 11.4 12 13 V VPPLK VPP lock-out voltage from write/erase (see Note 7) 0 1.5 V TA Ambient temperature during read/erase/program: L Suffix 0 70 °C TA Ambient temperature during read/erase/program: E Suffix −40 85 °C NOTE 7: Typical values shown are at TA = 25°C. word/byte typical write and block-erase performance (see Notes 7 and 8) MIN TYP MAX UNIT Main-block erase time 2.4 s Main-block byte-program time 1.7 s Main-block word-program time 1.1 s Parameter/ boot-block erase time 0.84 s NOTES: 7. Typical values shown are at TA = 25°C. 8. Excludes system-level overhead (all times in seconds) |
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