CAT525 CATALYST [Catalyst Semiconductor], CAT525 Datasheet
CAT525
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CAT525 Summary of contents
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... Output pin. A RDY/BSY output working in concert with an internal low voltage detector signals proper operation of non-volatile NVRAM Memory Erase/Write cycle. The CAT525 is available in the commercial and – industrial operating temperature ranges and offered in 20-pin plastic DIP and Surface mount packages ...
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... CAT525 ABSOLUTE MAXIMUM RATINGS Supply Voltage GND ...................................... –0.5V to +7V DD Inputs CLK to GND ............................ –0. GND .............................. –0. GND ............................... –0. RDY/BSY to GND ................... –0. PROG to GND ........................ –0. GND ........................ –0. REF GND ......................... –0. REF ...
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... DC — 1 — — — 8 — — 6 — Doc. No. 25078-00 4/ M-1 CAT525 Units LSB / ppm / Units MHz ...
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... CAT525 A. C. TIMING DIAGRAM Doc. No. 25078-00 4/ M-1 4 ...
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... CLOCK The CAT525’s clock controls both data flow in and out of the IC and EEPROM memory cell programming. Serial data is shifted into the DI pin and out of the DO pin on the clock’s rising edge. While it is not necessary for the clock ...
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... DATA OUTPUT Data is output serially by the CAT525, LSB first, via the Data Out (DO) pin following the reception of a start bit and two address bits by the Data Input (DI). becomes active whenever CS goes high and resumes Figure 1 ...
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... EEPROM then a change would occur at the read cycle’s conclusion. TEMPORARILY CHANGE OUTPUT The CAT525 allows temporary changes in DAC’s output to be made without disturbing the settings retained in EEPROM memory. This feature is particularly useful when testing for a new output setting and allows for user adjustment of preset or default values without losing the original factory settings ...
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... R = ——————————— REF + OFFSET + -V REF – -V for Dual Power Supply Systems 15K 10 µF 1N5231B 5. REF 10K CAT525 OPT 505 + – LM 324 GND V L REF 4.02 K 1.00K + ) - (V ) OFFSET OFFSET 32V MPT3055EL OUTPUT 10 µ ...
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... Staircase Window Comparator 339 + – 10K +5V WINDOW 1 + – + – 10K +5V WINDOW 2 + – + – 10K +5V WINDOW 3 + – Overlapping Window Comparator 9 CAT525 V REF WINDOW OUT WINDOW OUT WINDOW OUT WINDOW OUT WINDOW 5 GND WINDOW STRUCTURE V H REF WINDOW 1 V ...
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... CAT525 APPLICATION CIRCUITS (Cont.) + CONTROL CAT525 & DATA GND + CONTROL CAT525 OPT 505 & DATA GND Doc. No. 25078-00 4/ M-1 2.2K V REF 4.7 A LM385-2.5 +15V + DPP1 +5V – 10K 10K + DPP2 – REF 10K Current Sink with 4 Decades of Resolution 51K 10K ...
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... ORDERING INFORMATION Prefix Device # CAT 525 Optional Product Company ID Number Notes: (1) The device used in the above example is a CAT525JI-TE13 (SOIC, Industrial Temperature, Tape & Reel) Suffix J I Package P: PDIP J: SOIC Temperature Range Blank = Commercial (0˚C to 70˚ Industrial (-40˚C to 85˚C) ...
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... CAT525 Doc. No. 25078-00 4/ M-1 12 ...