24LLC02 Ceramate Technical Co., Ltd., 24LLC02 Datasheet
24LLC02
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24LLC02 Summary of contents
Page 1
... Hardware-based write protection is controlled by the state of the write-protect (WP) pin. Using one-page write mode, you can load bytes of data into the EEPROM in a single write operation. Another significant feature of the 24LLC02 is its support for fast mode and standard mode. FEATURES ...
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... Serial EEPROM For Low Power SDA Start/Stop Logic WP SCL Slave Address Comparator Figure 1-1. 24LLC02 Block Diagram * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 Control Logic Word Address Row Pointer decoder D ...
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... Tel:886-3-3214525 Fax:886-3-3521052 V WP SCL SDA CC 24LLC02 The 24LLC02 is available in 8-pin DIP, SOP,TSSOP package. Figure 1-2. Pin Assignment Diagram Description C-bus serial data interface. Schmitt Typical values for this pull-up resistor are 4.7 k CC. (400 kHz). , the write function is enabled ...
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... All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 SCL Figure 1-4. Pin Circuit Type Noise Filter Figure 1-5. Pin Circuit Type 3 Page 24LLC02 Noise Filter Data Out Data In Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 1.0 Dec. 26, 2001 ...
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... Any device that puts data onto the bus is defined as the “transmitter” and any device that gets data from the bus is the “receiver.” The bus is controlled by a master device which generates the serial clock and start/stop conditions , controlling bus access. Using the A0, A1, and A2 input pins eight 24LLC02 devices can be connected 2 to the same I C-bus as slaves (see Figure 1-6) ...
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... All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 Data or Data ACK Valid Change Figure 1-7. Data Transmission Sequence Page 24LLC02 Stop Condition Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 1.0 Dec. 26, 2001 ...
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... A0, A1 and A2 pins. Using this addressing scheme, you can cascade up to eight 24LLC02 on the bus (see Table 1-2 below).are used by the master to select which of the blocks of internal memory (1 block= 256 words) are to be accessed. The bits are in effect the most significant bits of the word address ...
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... Following the Start condition, the master sends the device identifier (4 bits), the device address (3 bits), and bit set to “0” onto the bus. Then the addressed 24LLC02 generates an ACK and waits for the next byte. W The next byte to be transmitted by the master is the word address. This 8-bit address is written into the word address pointer of the 24LLC02 ...
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... If the master transmits more than 16 bytes before it generates a stop condition to end the page write operation, the 24LLC02 word address pointer value “rolls over” and the previously received data is overwritten.If the master transmits less than 16 bytes and generates a stop condition, the 24LLC02 writes the received data to the corresponding EEPROM address. ...
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... Serial EEPROM For Low Power POLLING FOR AN ACK SIGNAL When the master issues a stop condition to initiate a write cycle, the 24LLC02 starts an internal write cycle. The master can then immediately begin polling for an ACK from the slave device. To poll for an ACK signal in a write operation, the master issues a start condition followed by the slave address. ...
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... Serial EEPROM For Low Power HARDWARE-BASED WRITE PROTECTION You can also write-protect the entire memory area of the 24LLC02. This method of write protection is controlled by the state of the Write Protect (WP) pin. When the WP pin is connected to V The 24LLC02 will acknowledge slave and word address, but it will not generate an acknowledge after receiving the first byte of the data ...
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... The 24LLC02 then sends an ACK and the 8-bit data stored at the desired address this point, the master does not acknowledge the transmission, but generates a stop condition instead response, the 24LLC02 stops transmitting data and reverts to its stand-by mode (see Figure 1-13). Start Slave Address A ...
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... The first data is sent in the same way as the previous read mode used on the bus. The next time, however, the master responds with an ACK, indicating that it requires additional data. The 24LLC02 continues to output data for each ACK it receives. To stop the sequential read operation,the master does not respond with an ACK, but instead issues a Stop condition. ...
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... V = 1.8 V, 100 kHz CC4 SDA = SCL = 5.5 V, CC5 CC all other inputs = SDA = SCL = 1.8 V, CC6 CC all other inputs = 0 V Page 24LLC02 Rating – 0 7.0 – 0 7.0 – 0 7.0 – – 150 5000 500 Min Typ Max 0.3 V – – CC 0.7 V – ...
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... Upon customers request 400 kHz (Max.) in standard mode and 1 MHz in fast mode are available. 2. When acting as a transmitter, the 24LLC02 must provide an internal minimum delay time to bridge the undefined period (minimum 300 ns) of the falling edge of SCL. This is required to avoid unintended generation of a start or stop condition. ...
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... NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 HIGH R t LOW t t HD:STA HD:DAT t AA ACK Stop Condition Figure 1-16. Write Cycle Timing Diagram Page 24LLC02 t t SU:DAT SU:STO t BUF t WR Start Condition Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 1.0 Dec. 26, 2001 ...
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... Fax:886-3-3521052 D E-PIN O0.118 NOTE NOM MAX - 5. 3.30 3.45 0.46 0.56 1.27 1.52 0.99 1.17 0.25 0.33 9.30 9.53 - 8.26 6.35 6.60 2. 9.40 0.84 0.97 Page 24LLC02 E 15 (4X DIMENSIONS IN INCHS MIN NOM - - 0.015 - 0.128 0.130 0.014 0.018 0.045 0.050 0.032 0.039 0.008 0.010 0.359 0.366 0.300 - 0.244 0.250 - 0.100 0.125 - 0.330 - 0.028 0.033 Email: server@ceramate.com.tw Http: www ...
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... Fax:886-3-3521052 VIEW "A" 0.015x45 B y NOM MAX 1.60 1.73 - 0.25 1.45 - 0.41 0.51 0.20 0.25 4.85 4.95 3.91 3.99 1.27 - 5.99 6.20 0.71 1. Page 24LLC02 L 7 (4X) VIEW "A" DIMENSIONS IN INCHS MIN NOM 0.058 0.063 0.004 - - 0.057 0.013 0.016 0.0075 0.008 0.0098 0.189 0.191 0.150 0.154 - 0.050 0.228 0.236 0.015 0.028 - - Email: server@ceramate.com.tw Http: www ...
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... All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 DIMENSIONS IN MILLIMETERS MIN NOM 1.05 1.10 0.05 0.10 - 1.00 0.20 0.25 - 0.127 2.90 3.05 6.20 6.40 4.30 4.40 - 0.65 0.50 0.60 0.90 1. Page 24LLC02 DETAIL DETAIL A MAX 1.20 0.15 1.05 0.28 3.10 6.60 4.50 0.70 1. Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 1.0 Dec. 26, 2001 - - o ...