CAT512 Catalyst Semiconductor, CAT512 Datasheet
CAT512
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CAT512 Summary of contents
Page 1
... The CAT512 operates from a single 3–5 volt power supply. The high voltage required for EEPROM Erase/ Write operations is generated on-chip. The CAT512 is available in the Commercial and – +85 C Industrial operating temperature ranges and offered in 14-pin plastic DIP and Surface mount packages ...
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... CAT512 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 / CAT512 Min Typ Max Units 0.99 V 0.995 V — — 0.005 V 0. — — 1 — — 100K — — 150K — ...
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... CAT512 A. C. TIMING DIAGRAM CLK t CSS CS t DIS DI t DIH PROG RDY/BSY 8/ CLK t L CLK t DO0 t DO1 PROG Advanced Information CSH t CSMIN BUSY 4 5 ...
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... CLOCK The CAT512’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 CAT512, 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 CAT512 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 CAT512 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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... V L REF + LM385-2.5 -15V Current Source with 4 Decades of Resolution 255 mA SINK 1 mA steps 2N7000 µA steps 2N7000 3.9K 10K – TIP 30 + -15V +15V TIP 29 10K BS170P 1 mA steps 3.9K BS170P 5 µA steps 255 mA SOURCE CAT512 8/00 ...
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... CAT512 ORDERING INFORMATION Prefix Device # CAT 512 Optional Product Company ID Number Notes: (1) The device used in the above example is a CAT512JI-TE13 (SOIC, Industrial Temperature, Tape & Reel) 8/00 Suffix J I Package 2000/Reel P: PDIP J: SOIC Temperature Range Blank = Commercial (0˚C to +70˚ Industrial (-40˚C to +85˚C) ...