cat515 Catalyst Semiconductor, cat515 Datasheet
cat515
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cat515 Summary of contents
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... The CAT515 operates from a single 3–5 volt power supply. The high voltage required for EEPROM Erase/ Write operations is generated on-chip. The CAT515 is available in the Commercial and – +85 C Industrial operating temperature ranges and offered in 20-pin plastic DIP and Surface mount packages ...
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... CAT515 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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... L see note pF +5V LOAD pF +3V LOAD MHz 0V MHz OUT / CAT515 Min Typ Max Units 0.99 V 0.995 V — — 0.005 V 0. — — 1 — — 100K — — 150K — ...
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CLK t CSS CS t DIS DI t DIH DO1 PROG RDY/BSY CLK CSH CLK t CSMIN t DO0 t ...
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... CLOCK The CAT515’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 CAT515, 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 CAT515 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 = ——————————— DAC V L REF + OFFSET + -V REF – -V for Dual Power Supply Systems 15K 10 µF 1N5231B 5. REF 10K CAT515 OPT 505 + – LM 324 GND V L REF 4.02 K 1.00K Digitally Controlled Voltage Reference + ) - (V ) REF OFFSET 1 µ REF OFFSET 1 µA ...
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... Staircase Window Comparator 339 + – 10K +5V WINDOW 1 + – + – 10K +5V WINDOW 2 + – + – 10K +5V WINDOW 3 + – Overlapping Window Comparator 9 CAT515 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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... CAT515 APPLICATION CIRCUITS (Cont.) +5V CONTROL CAT515 OPT 505 & DATA GND + DAC CONTROL CAT515 OPT 505 & DATA DAC GND Doc. No. 25077-00 2/98 M-1 2. REF 4.7 µA LM385-2.5 +15V DAC + +5V – 10K 10K DAC + – meg 5 meg REF 10K Current Sink with 4 Decades of Resolution ...
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... ORDERING INFORMATION Prefix Device # CAT 515 Optional Product Company ID Number Notes: (1) The device used in the above example is a CAT515JI-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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... CAT515 Doc. No. 25077-00 2/98 M-1 12 ...