24c32a Microchip Technology Inc., 24c32a Datasheet
24c32a
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24c32a Summary of contents
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... The 24C32A also has a page-write capability bytes of data. The 24C32A is capable of both ran- dom and sequential reads up to the 32K boundary. Functional address lines allow up to eight 24C32A devices on the same bus, for up to 256K bits address space ...
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... ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V ...................................................................................7.0V CC All inputs and outputs w.r.t. V ............... -0. Storage temperature .....................................-65°C to +150°C Ambient temp. with power applied ................-65°C to +125°C Soldering temperature of leads (10 seconds) ............. +300°C ESD protection on all pins *Notice: Stresses above those listed under “Maximum Ratings” ...
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... HIGH DAT SU DAT STA T AA 24C32A Remarks (Note 1) (Note 1) After this period the first clock pulse is generated Only relevant for repeated START condition (Note 2) Time the bus must be free before a new transmission can start (Note 1), C 100 pF B (Note 3) 25° ...
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... NOT generating an acknowledge bit on the last byte that has been clocked out of the slave. In this case, the slave (24C32A) will leave the data line HIGH to enable the master to generate the STOP condition. (D) ...
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... SDA bus checking the device type identifier being transmitted. Upon receiving a 1010 code and appropri- ate device select bits, the slave device outputs an acknowledge signal on the SDA line. Depending on the state of the R/W bit, the 24C32A will select a read or write operation. Control Operation ...
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... Page Write The write control byte, word address and the first data byte are transmitted to the 24C32A in the same way byte write. But instead of generating a stop condi- tion, the master transmits bytes which are tem- porarily stored in the on-chip page buffer and will be written into memory after the master has transmitted a stop condition ...
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... To perform this type of read operation, first the word address must be set. This is done by sending the word address to the 24C32A as part of a write operation (R/W bit set to zero). After the word address is sent, the master gen- erates a start condition following the acknowledge. This terminates the write operation, but not before the inter- nal address pointer is set ...
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... The device select bits A2, A1, A0 can be used to expand the contiguous address space for up to 256K bits by adding up to eight 24C32A's on the same bus. In this case, software can use A0 of the control byte as address bit A12 address bit A13, and A2 as address bit A14 ...
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... PIN DESCRIPTIONS 7.1 A0, A1, A2 Chip Address Inputs The A0..A2 inputs are used by the 24C32A for multiple device operation and conform to the 2-wire bus stan- dard. The levels applied to these pins define the address block occupied by the device in the address map. A particular device is selected by transmitting the corresponding bits (A2, A1, A0) in the control byte (Figure 3-3) ...
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... Product Identification System To order or to obtain information, e.g., on pricing or delivery, please use the listed part numbers, and refer to the factory or the listed sales offices. 24C32A - /P Package: Temperature Range: Device: Sales and Support Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recom- mended workarounds ...
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... Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. 2004 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC ...
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... Via Salvatore Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 07/12/04 2004 Microchip Technology Inc. ...