ST24C01 SGS-Thomson-Microelectronics, ST24C01 Datasheet
ST24C01
Available stocks
Related parts for ST24C01
ST24C01 Summary of contents
Page 1
... MILLION ERASE/WRITE CYCLES with 40 YEARS DATA RETENTION 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 ( ...
Page 2
... 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 ...
Page 3
... SIGNAL DESCRIPTIONS Serial Clock (SCL). The SCL input pin is used to synchronize all data in and out of the memory. A resistor can be connected from the SCL line act as a pull up (see Figure 3). ST24/25C01, ST24C01R, ST24/25W01 Device Code ...
Page 4
... 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 de- tailed information about Write Control feature. ...
Page 5
... 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 = 3V to 5.5V, 2.5V to 5.5V or 1.8V to 5.5V) CC Test Condition ...
Page 6
... 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 ...
Page 7
... 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 & ...
Page 8
... SCL MSB SDA Write Operations The Multibyte Write mode (only available on the ST24/25C01 and the ST24C01R versions) is se- lected when the MODE pin Write mode when MODE pin pin may be driven dynamically with CMOS input levels. Following a START condition the master sends a device select code with the RW bit reset to ’ ...
Page 9
... 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 ...
Page 10
... 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 ...
Page 11
... To terminate the stream of bytes, the master must NOT acknowledge the last byte out- put, but MUST generate a STOP condition. The output data is from consecutive byte addresses, with the internal byte address counter automat- ST24/25C01, ST24C01R, ST24/25W01 ACK ACK DEV SEL BYTE ADDR ...
Page 12
... 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 ...
Page 13
... 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 ...
Page 14
... 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 ...
Page 15
... 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 ...
Page 16
... 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 ...