ST25W01 ST Microelectronics, ST25W01 Datasheet
ST25W01
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ST25W01 Summary of contents
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... SINGLE SUPPLY VOLTAGE: – 5.5V for ST24x01 versions – 2.5V to 5.5V for ST25x01 versions – 1.8V to 5.5V for ST24C01R version only HARDWARE WRITE CONTROL VERSIONS: ST24W01 and ST25W01 TWO WIRE SERIAL INTERFACE, FULLY I BUS COMPATIBLE BYTE and MULTIBYTE WRITE ( BYTES) PAGE WRITE ( BYTES) ...
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ST24/25C01, ST24C01R, ST24/25W01 Figure 2A. DIP Pin Connections ST24x01 ST25x01 ST24C01R AI00840D Table 2. Absolute Maximum Ratings Symbol T Ambient Operating Temperature A T Storage Temperature STG ...
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... CC is internally read as V Write Control (WC). An hardware Write Control feature (WC) is offered only for ST24W01 and ST25W01 versions on pin 7. This feature is usefull to protect the contents of the memory from any erroneous erase/write cycle. The Write Control sig- nal is used to enable ( the internal write protection ...
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ST24/25C01, ST24C01R, ST24/25W01 SIGNAL DESCRIPTION (cont’d) The devices with this Write Control feature no longer support the Multibyte Write mode of opera- tion, however all other write modes are fully sup- ported. Refer to the AN404 Application Note for more ...
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Table 5. Input Parameters Symbol C Input Capacitance (SDA Input Capacitance (other pins Input Impedance (ST24/25W01) WCL Z WC Input Impedance (ST24/25W01) WCH Low-pass filter input time constant t LP (SDA and SCL) Note: ...
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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 F ...
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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 ...
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ST24/25C01, ST24C01R, ST24/25W01 2 Figure Bus Protocol SCL SDA START CONDITION SCL MSB SDA START CONDITION 1 SCL MSB SDA Write Operations The Multibyte Write mode (only available on the ST24/25C01 and the ST24C01R versions) is se- ...
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Multibyte Write. For the Multibyte Write mode, the MODE pin must The Multibyte Write IH mode can be started from any address in the memory. The master sends from one bytes of data, ...
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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 ...
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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 ...
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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) ...
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... Example: Operating Voltage ST24C01 3V to 5.5V Standard ST24W01 3V to 5.5V Hardware Write Control ST25C01 2.5V to 5.5V Standard ST25W01 2.5V to 5.5V Hardware Write Control ST24C01R 1.8V to 5.5V Standard 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). ...
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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. ...
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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, ...
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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 ...