ds1245y-fir Maxim Integrated Products, Inc., ds1245y-fir Datasheet
ds1245y-fir
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ds1245y-fir Summary of contents
Page 1
... Unlimited write cycles Low-power CMOS Read and write access times as fast Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time Full ±10% V operating range (DS1245Y) CC Optional ±5% V operating range CC (DS1245AB) Optional industrial temperature range of -40°C to +85°C, designated IND ...
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... ODW DATA RETENTION MODE The DS1245AB provides full functional capability for V 4.5 volts. The DS1245Y provides full functional capability for V protects by 4.25 volts. Data is maintained in the absence of V The nonvolatile static RAMs constantly monitor V automatically write-protect themselves, all inputs become “don’t care,” and all outputs become high impedance ...
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... CCS1 I CCS2 I CCO1 V 4. DS1245Y/ See Note 10) A TYP MAX UNITS NOTES 5.0 5.25 V 5.0 5 0.8 V =5V ± 5% for DS1245AB =5V ± 10% for DS1245Y) CC TYP MAX UNITS NOTES μA +1.0 μA +1 μA 200 600 μA 50 150 85 mA 4.62 4.75 V ...
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... ODW t 5 OEW DH1 t 10 DH2 DS1245Y/AB 4 =25°C) A MAX UNITS NOTES =5V ± 5% for DS1245AB) CC =5V ± 10% for DS1245Y) CC DS1245Y-85 UNITS NOTES MAX ...
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... WR1 t 15 WR2 t 35 ODW t 5 OEW DH1 t 10 DH2 DS1245Y/AB =5V ± 5% for DS1245AB) CC =5V ± 10% for DS1245Y) CC MAX UNITS NOTES 120 ns 120 120 120 ...
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... READ CYCLE SEE NOTE 1 WRITE CYCLE 1 SEE NOTES and DS1245Y/AB ...
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... WRITE CYCLE 2 SEE NOTES and 13 POWER-DOWN/POWER-UP CONDITION DS1245Y/AB ...
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... DR during write cycle, the output buffers remain in a high impedance state. IH and . t is measured from the latter going high going high DS1245Y/ See Note 10) A TYP MAX UNITS NOTES μs 1.5 μs μ 125 ms (t =25°C) ...
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... DS1245Y-85 0°C to +70°C DS1245Y-85+ 0°C to +70°C DS1245Y-100 0°C to +70°C DS1245Y-100+ 0°C to +70°C DS1245YP-100 0°C to +70°C DS1245YP-100+ 0°C to +70°C DS1245Y-120 0°C to +70°C DS1245Y-120+ 0°C to +70°C DS1245Y-120IND -40°C to +85°C DS1245Y-120IND+ -40°C to +85°C + Denotes lead-free/RoHS-compliant product. ...
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... DS1245Y/AB NONVOLATILE SRAM, 34-PIN POWERCAP MODULE PKG DIM MIN A 0.920 B 0.980 0.052 E 0.048 F 0.015 G 0.020 DS1245Y/AB INCHES NOM MAX 0.925 0.930 0.985 0.990 - 0.080 0.055 0.058 0.050 0.052 0.020 0.025 0.025 0.030 ...
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... DS1245Y/AB NONVOLATILE SRAM, 34-PIN POWERCAP MODULE WITH POWERCAP ASSEMBLY AND USE Reflow soldering Dallas Semiconductor recommends that PowerCap Module bases experience one pass through solder reflow oriented label-side up (live-bug). Hand soldering and touch-up Do not touch soldering iron to leads for more than 3 seconds. To solder, apply flux to the pad, heat the lead frame pad and apply solder ...
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... RECOMMENDED POWERCAP MODULE SOLDER STENCIL PACKAGE INFORMATION (For the latest package outline information http://www.maxim-ic.com/DallasPackInfo.) PACKAGE TYPE 32 DIP PKG DIM PKG DIM DOCUMENT NO. 56-G0002-001 DS1245Y/AB INCHES MIN NOM MAX - 1.050 - - 0.826 - - 0.050 - - 0.030 - - 0.112 - INCHES MIN ...
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... REVISION HISTORY REVISION DATE Added package information table. 121907 Removed the DIP module package drawing and dimension table. DESCRIPTION DS1245Y/AB PAGES CHANGED 10, 11, 12 ...