as7c251mft18a ETC-unknow, as7c251mft18a Datasheet
as7c251mft18a
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as7c251mft18a Summary of contents
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... Q Enable register CE CLK D Q Enable Power delay down register CLK -75 -85 8.5 10 7.5 8.5 275 250 Alliance Semiconductor AS7C251MFT18A Memory 20 array Input Output registers buffers CLK 18 DQ[a,b] -10 Units 12 10 230 Copyright © Alliance Semiconductor. All rights reserved. ...
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... Mode PL-SCD PL-SCD PL-SCD PL-DCD PL-DCD PL-DCD NTD-PL NTD-PL NTD-PL NTD-FT NTD-FT NTD- Alliance Semiconductor AS7C251MFT18A Speed 166/133 MHz 166/133 MHz 166/133 MHz 166/133 MHz 166/133 MHz 166/133 MHz 7.5/8.5/10 ns 7.5/8.5/10 ns 7.5/8.5/10 ns 166/133 MHz 166/133 MHz 166/133 MHz 7.5/8.5/10 ns 7.5/8.5/10 ns 7.5/8.5/ ...
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... V 20 DDQ V 21 SSQ 22 DQb6 DQb7 23 24 DQPb SSQ V 27 DDQ 12/24/04, v. 1.2 ® TQFP 14 x 20mm Alliance Semiconductor AS7C251MFT18A DDQ 76 V SSQ DQPa DQa7 73 72 DQa6 V 71 SSQ 70 V DDQ 69 DQa5 68 DQa4 ...
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... WE signals are sampled on the clock edge that samples ADSC LOW (and ADSP HIGH). Master chip enable • CE0 blocks ADSP, but not ADSC. The AS7C251MFT18A family operates from a core 2.5V power supply. These devices are available in a 100-pin TQFP package. TQFP capacitance Parameter Symbol ...
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... DESELECT or READ cycle should be given while the SRAM is transitioning out of SNOOZE MODE. PUS 12/24/04, v. 1.2 ® or left floating, device follows interleaved Burst order. When DD is guaranteed after the time t is met. After entering SNOOZE MODE, all inputs except ZZ is SB2 ZZI Alliance Semiconductor AS7C251MFT18A . The duration of SB2 ...
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... Linear burst address (LBO = Address Address Address Address Alliance Semiconductor AS7C251MFT18A BWb ...
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... X External Next Next Current Current Alliance Semiconductor AS7C251MFT18A CLK Operation Deselect Deselect Deselect Deselect Deselect Begin read Begin read Begin read ...
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... IN V –0 – – OUT T –65 stg T –65 bias Symbol Min Nominal V 2.375 2 2.375 2.5 DDQ Vss 0 0 Alliance Semiconductor AS7C251MFT18A Max Unit +3 0 0.3 V DDQ 1 +150 C o +135 C Max Unit 2.625 V 2.625 ...
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... Deselected < Max Deselected < 0.2V, I SB1 ≤ 0.2V or ≥ V all ≥ V Deselected Max I SB2 ≤ ≥ V all Alliance Semiconductor AS7C251MFT18A Min Max < < OUT DDQ 1.7* V +0.3 DD 1.7* V DDQ -0.3** 0.7 -0.3** 0.7 1.7 – – ...
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... ADSPS t 2.0 – 2.0 ADSCS t 0.5 – 0.5 ADVH t 0.5 – 0.5 ADSPH t 0.5 – 0.5 ADSCH Conditions Symbol ZZ > SB2 t PDS t PUS t ZZI t RZZI Alliance Semiconductor AS7C251MFT18A –10 Min Max Unit Notes – 12 – ns – – 4.0 ns – 2.5 – ns 2,3,4 – 3.0 – ns – 0 – ns 2,3,4 - 4.0 ns 2,3,4 - 4.0 ns 2,3,4 – 0 – ...
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... ADV inserts wait states t HZOE t OH Q(A2Ý01) Q(A2Ý10) Q(A2Ý11 Read Burst Burst Suspend Burst Q(A2) Read Read Read Read Q(A 2Ý01 ) Q(A 2Ý10 ) Q(A 2Ý10 ) Q(A 2Ý11 ) Alliance Semiconductor AS7C251MFT18A A3 Q(A3Ý11) Q(A3) Q(A3Ý01) Q(A3Ý10) t HZC Read Burst Burst Burst Q(A3) Read Read Read DSEL Q(A 3Ý01 ) Q(A 3Ý10 ) Q(A 3Ý11 ) Undefined ...
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... CYC t CL ADSC LOADS NEW ADDRESS A2 ADV SUSPENDS BURST D(A2) D(A2Ý01) D(A2Ý01) Read Suspend ADV Suspend Write Q(A2) Write Burst Write D D(A 2Ý01 ) D(A1) Write D(A 2Ý01 ) Alliance Semiconductor AS7C251MFT18A t ADSCS t ADSCH ADVS t ADVH D(A2Ý10) D(A2Ý11) D(A3) D(A3Ý01) D(A3Ý10) ADV ADV Write ...
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... ADVS t ADVH D(A2 HZOE LZOE Q(A3) Suspend Read Suspend Read Read Q(A2) Write Q(A3) Q(A1) D Alliance Semiconductor AS7C251MFT18A t OH Q(A3Ý01) Q(A3Ý10) Q(A3Ý11) ADV ADV ADV Suspend Burst Burst Burst Read Read Read Read Q(A 3Ý11 ) Q(A 3Ý01 ) Q(A 3Ý10 ) Q(A 3Ý ...
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... Dout Din READ READ Q(A1) Q(A2) Note: ADV is don’t care here. 12/24/04, v. 1.2 ® t CYC HZOE Q(A3) Q(A4 D(A5) D(A6) D(A7) READ WRITE READ WRITE Q(A3) D(A6) Q(A4) D(A5) Alliance Semiconductor AS7C251MFT18A A10 Q(A9) Q(A10) D(A8) READ WRITE WRITE READ Q(A10) D(A7) D(A8) Q(A9 ...
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... Din Dout Q(A1) t PDS ZZ ZZ Setup Cycle t ZZI I supply READ READ Q(A1) Q(A1Ý01) W[a:b] is don’t care. 12/24/04, v. 1.2 ® HZC t PUS ZZ Recovery Cycle t RZZI I SB2 Sleep State Alliance Semiconductor AS7C251MFT18A t CYC HZOE Q(A2) Q(A2(Ý01)) Normal Operation Mode READ READ Q(A2) Q(A2Ý01 ...
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... pF* Figure B: Output load (A) at any given temperature and voltage. LZC is measured as low below VIL Alliance Semiconductor AS7C251MFT18A Thevenin equivalent: +2.5V 319Ω/1667Ω D OUT /2 DDQ 5 pF* 353Ω/1538Ω GND *including scope and jig capacitance Figure C: Output load(B) ...
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... Package dimensions 100-pin TQFP (quad flat pack) TQFP Min Max c A1 0.05 0.15 A2 1.35 1. 0.22 0. 0.09 0.20 D 13.90 14.10 E 19.90 20.10 e 0.65 nominal Hd 15.85 16.15 He 21.80 22.20 L 0.45 0.75 L1 1.00 nominal α 0° 7° Dimensions in millimeters 12/24/04, v. 1.2 ® α Alliance Semiconductor AS7C251MFT18A ...
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... Ordering information Width Package & AS7C251MFT18A-75TQC TQFP x18 AS7C251MFT18A-75TQI Note: Add ‘N’ to the above part numbers for Lead Free Parts (Ex. AS7C251MFT18A-85TQCN) Part numbering guide AS7C Alliance Semiconductor SRAM prefix 2. Operating voltage 2.5V 3. Organization Flow-through mode 5. Organization x18 6. Production version first production version 7. Clock access time: [-75 = 7.5 ns ...
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... Alliance products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use. AS7C251MFT18A ® Copyright © Alliance Semiconductor All Rights Reserved Part Number: AS7C251MFT18A Document Version: v. 1.2 ...