ST24 STMICROELECTRONICS [STMicroelectronics], ST24 Datasheet
ST24
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ST24 Summary of contents
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... ST24/25C01, ST24C01R SERIAL 1K (128 x 8) EEPROM PSDIP8 (B) 0.25mm Frame Figure 1. Logic Diagram 2 C bus 3 E0-E2 SCL MODE/WC* Note: WC signal is only available for ST24/25W01 products. ST24/25W01 NOT FOR NEW DESIGN 8 1 SO8 (M) 150mil Width V CC SDA ST24x01 ST25x01 ST24C01R V SS AI00839D 1/16 ...
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... The memories operate with a power supply value as low as 1.8V for the ST24C01R only. Both Plastic Dual-in-Line and Plastic Small Outline packages are available. The memories are compatible with the I ...
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... Notes Multibyte Write not available in ST24/25W01 versions. When writing data to the memory it responds to the 8 bits received by asserting an acknowledge bit during the 9th bit time. When data is read by the bus master, it acknowledges the receipt of the data bytes in the same way ...
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... ONLY when the SCL line is low. Memory Addressing. To start communication be- tween the bus master and the slave ST24/25x01, the master must initiate a START condition. Follow- ing this, the master sends onto the SDA bus line 8 bits (MSB first) corresponding to the device select code (7 bits) and a READ or WRITE bit ...
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... IL V Input High Voltage (SCL, SDA) IH Input Low Voltage V IL (E0-E2, MODE, WC) Input High Voltage V IH (E0-E2, MODE, WC) Output Low Voltage (ST24 series) Output Low Voltage (ST25 series Output Low Voltage (ST24C01R) ST24/25C01, ST24C01R, ST24/25W01 ( 100 kHz ) A Parameter Test Condition = ...
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... ST24/25C01, ST24C01R, ST24/25W01 Table 7. AC Characteristics ( – – Symbol Alt t t Clock Rise Time CH1CH2 Clock Fall Time CL1CL2 Input Rise Time DH1DH2 Input Fall Time DL1DL1 F ( Clock High to Input Transition ...
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... Figure 5. AC Waveforms SCL SDA IN START CONDITION SCL tCLQV SDA OUT tDHDL SCL SDA IN tCHDH STOP CONDITION ST24/25C01, ST24C01R, ST24/25W01 tCHCL tDLCL tCHDX tCLDX SDA SDA INPUT CHANGE tCLQX DATA VALID DATA OUTPUT tW WRITE CYCLE tCLCH tDXCX tCHDH tDHDL STOP & ...
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... CHANGE For the ST24/25W01 versions, any write command with (during a period of time from the START condition untill the end of the Byte Address) will not modify data and will NOT be acknowledged and the Page IH on data bytes Figure 9. ...
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... already decoded by ST24xxx NO ReSTART STOP ST24/25C01, ST24C01R, ST24/25W01 Page Write. For the Page Write mode, the MODE pin must bytes to be written in a single write cycle, provided that they are all located in the same ’row’ in the memory: that is the 5 most significant mem- ory address bits (A7-A3) are the same ...
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... ST24/25C01, ST24C01R, ST24/25W01 Figure 8. Write Modes Sequence (ST24/25C01 and ST24C01R) BYTE WRITE MULTIBYTE AND PAGE WRITE Minimizing System Delays by Polling On ACK. During the internal write cycle, the memory discon- nects itself from the bus in order to copy the data from the internal latches to the memory cells. The ...
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... Figure 9. Write Modes Sequence with Write Control = 1 (ST24/25W01) WC BYTE WRITE WC PAGE WRITE WC (cont'd) PAGE WRITE (cont'd) Sequential Read. This mode can be initiated with either a Current Address Read or a Random Ad- dress Read. However, in this case the master DOES acknowledge the data byte output and the memory continues to output the next byte in se- quence ...
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... ST24/25C01, ST24C01R, ST24/25W01 Figure 10. Read Modes Sequence CURRENT ADDRESS READ RANDOM ADDRESS READ SEQUENTIAL CURRENT READ SEQUENTIAL RANDOM READ Note: * The 7 Most Significant bits of DEV SEL bytes of a Random Read (1st byte and 3rd byte) must be identical. 12/16 ACK NO ACK DEV SEL ...
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... B M Notes Temperature range on special request only Temperature range for ST24C01R only. Parts are shipped with the memory content set at all "1’s" (FFh). For a list of available options (Operating Voltage, Range, Package, etc...) refer to the current Memory Shortform catalogue. For further information on any aspect of this device, please contact the SGS-THOMSON Sales Office nearest to you ...
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... ST24/25C01, ST24C01R, ST24/25W01 PSDIP8 - 8 pin Plastic Skinny DIP, 0.25mm lead frame Symb Typ 7. 2. PSDIP8 Drawing is not to scale. 14/16 mm Min Max 3.90 5.90 0.49 – 3.30 5.30 0.36 0.56 1.15 1.65 0.20 0.36 9.20 9.90 – – 6.00 6.70 – – 7.80 – 10.00 3.00 3. inches Typ Min ...
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... SO8 - 8 lead Plastic Small Outline, 150 mils body width Symb Typ 1. SO8 SO-a Drawing is not to scale. ST24/25C01, ST24C01R, ST24/25W01 mm Min Max 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 3.80 4.00 – – 5.80 6.20 0.25 0.50 0. inches Typ Min 0.053 0.069 0.004 0.010 0.013 ...
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... ST24/25C01, ST24C01R, ST24/25W01 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice ...