24AA65 MicrochipTechnology, 24AA65 Datasheet
24AA65
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24AA65 Summary of contents
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... Temperature ranges - Commercial (C +70 C DESCRIPTION The Microchip Technology Inc. 24AA65 is a “smart” Serial Electrically Erasable PROM. This device has been developed for advanced, low power applications such as personal communications, and provides the systems designer with flexibility through the use of many new user-programmable features capable of opera- tion down to 1.8V, the end-of-life voltage for 2 “ ...
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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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... Schmitt trigger inputs which provide improved specification for standard operation HIGH DAT SU DAT 24AA65 Units Remarks kHz — ns — (Note 1) ns (Note 1) — ns After this period the first clock pulse is gen- erated — ...
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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 (24AA65) must leave the data line HIGH to enable the master to generate the STOP condition. (D) ...
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... A control byte is the first byte received following the start condition from the master device. The control byte consists of a four bit control code, for the 24AA65 this is set as 1010 binary for read and write operations. The next three bits of the control byte are the device select bits (A2, A1, A0) ...
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... FIGURE 4-2: PAGE WRITE (FOR CACHE WRITE, SEE FIGURE 8- Bus Activity: Control r Master Byte t SDA Line Bus Activity C K FIGURE 4-3: CURRENT ADDRESS READ S T BUS ACTIVITY A MASTER R T SDA LINE S BUS ACTIVITY FIGURE 4-4: RANDOM READ S T CONTROL WORD ...
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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 24AA65 as part of a write operation (R/W bit set to 0). After the word address is sent, the master generates a start condition following the acknowledge. This termi- nates the write operation, but not before the internal address pointer is set ...
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... After the third byte is sent to the device, it will acknowledge and a STOP bit is then sent by the master to complete the command. During a normal write sequence attempt is made to write to a protected address, no data will be written and the device will not report an error or abort the com- mand ...
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... PIN DESCRIPTIONS 8.1 A0, A1, A2 Chip Address Inputs The A0..A2 inputs are used by the 24AA65 for multiple device operation and conform to the two-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 3-2 and Figure 8-1) ...
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... FIGURE 8-1: CONTROL SEQUENCE BIT ASSIGNMENTS Control Byte Address Byte Slave Device Address Select Bits Security Read S t Acknowledges from Device ...
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... Page 0 of cache written to page 3 of array. Write cycle is executed after every page is written. • • • byte 2 byte 3 byte 4 byte 7 page 3 24AA65 cache page 7 • • • bytes 56-63 array row n • • • page 7 • • • page 7 array row beginning ...
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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. 24AA65 – /P Package: Temperature Range: Device: AMERICAS Corporate Office Microchip Technology Inc. 2355 West Chandler Blvd. ...