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TMS28F008AXY Datasheet(PDF) 36 Page - Texas Instruments |
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TMS28F008AXY Datasheet(HTML) 36 Page - Texas Instruments |
36 / 52 page TMS28F008Axy,TMS28F800Axy 1048576 BY 8-BIT/524 288 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES SMJS851A – NOVEMBER 1997 – REVISED FEBRUARY 1998 36 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 timing requirements for TMS28F008AVy or ’ALy and TMS28F800AVy or ’ALy (commercial and extended temperature ranges) (continued) write/erase operations — CE-controlled writes ALT. SYMBOL ’28F008AVy 100 ’28F800AVy 100 ’28F008ALy100 ’28F800ALy100 ’28F008AVy80 ’28F800AVy80 ’28F008ALy80 ’28F800ALy80 UNIT MIN MAX MIN MAX tc( E ) Cycle time, write tAVAV 100 120 ns tc(E)OP Cycle time, duration of programming operation tEHQV1 6 6 µs tc(E)ERB Cycle time, erase operation (boot block) tEHQV2 0.3 0.3 s tc(E)ERP Cycle time, erase operation (parameter block) tEHQV3 0.3 0.3 s tc(E)ERM Cycle time, erase operation (main block) tEHQV4 0.6 0.6 s td(RPR) Delay time, boot-block relock tPHBR 200 200 ns th(A) Hold time, A0 – A18 (see Note 14) tEHAX 0 0 ns th(D) Hold time, DQ valid tEHDX 0 0 ns th( W ) Hold time, WE tEHWH 0 0 ns th (VPP) Hold time, VPP from valid status-register bit tQVVL 0 0 ns th(RP) Hold time, RP at VHH from valid status-register bit tQVPH 0 0 ns th(WP) Hold time, WP from valid status-register bit tWHPL 0 0 ns tsu(WP) Setup time, WP before write operation tELPH 90 100 ns tsu(A) Setup time, A0 – A18 (see Note 14) tAVEH 90 100 ns tsu(D) Setup time, DQ tDVEH 90 100 ns tsu( W ) Setup time, WE before write operation tWLEL 0 0 ns tsu(RP) Setup time, RP at VHH to CE going high tPHHEH 200 100 ns tsu( VPP)2 Setup time, VPP to CE going high tVPEH 200 100 ns tw(E) Pulse duration, CE low tELEH 90 100 ns tw( EH) Pulse duration, CE high tEHEL 20 30 ns trec(RPHE) Recovery time, RP high to CE going low tPHEL 1.5 1.5 µs NOTE 14: For 28F800 (8-bit configuration) A–1, A–1 – A18 with A–1 as LSB address. For 28F008 (16-bit configuration): A0–A19 with A0 as LSB address. |
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