st25e64 STMicroelectronics, st25e64 Datasheet
st25e64
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st25e64 Summary of contents
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... PERFORMANCES DESCRIPTION The ST24/25E64 are 64K bit electrically erasable programmable memories (EEPROM), organized as 8 blocks of 1024 x 8 bits. The ST25E64 operates with a power supply value as low as 2.5V. Both Plastic Dual-in-Line and Plastic Small Outline pack- ages are available. Table 1. Signal Names ...
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... ST24E64, ST25E64 Figure 2A. DIP Pin Connections ST24E64 ST25E64 SCL SDA AI01205B Table 2. Absolute Maximum Ratings Symbol T Ambient Operating Temperature A T Storage Temperature STG T Lead Temperature, Soldering LEAD V Input or Output Voltages IO V Supply Voltage ...
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... A stable V must be applied before applying any logic signal. SIGNALS DESCRIPTION Serial Clock (SCL). The SCL input pin is used to synchronize all data in and out of the memory. A ST24E64, ST25E64 Chip Enable ...
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... ST24E64, ST25E64 Figure 3. Maximum R Value versus Bus Capacitance ( BUS (pF) DEVICE OPERATION Bus Background The ST24/25E64 support the extended addressing protocol. This protocol defines any device that sends data onto the bus as a transmitter and any device that reads the data as a receiver ...
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... 2. 2.5V 400kHz CC C –0.3 0.7 V –0 3mA 2.1mA 2. ST24E64, ST25E64 Min Max Unit 500 k 100 ns Max Unit 100 A 300 0 ...
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... ST24E64, ST25E64 Table 7. AC Characteristics (T = – 4.5V to 5.5V or 2.5V to 5.5V Symbol Alt t t Clock Rise Time CH1CH2 Clock Fall Time CL1CL2 F ( SDA Rise Time DH1DH2 R ( SDA Fall Time DL1DL1 F ( Clock High to Input Transition ...
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... SDA IN tCHDX START CONDITION SCL tCLQV SDA OUT DATA OUTPUT tDHDL SCL SDA IN tCHDH STOP CONDITION tCLCH tDXCX tCLDX SDA SDA STOP & INPUT CHANGE BUS FREE tCLQX DATA VALID tW tCHDX WRITE CYCLE START CONDITION ST24E64, ST25E64 tCHDH tDHDL AI00795 7/16 ...
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... ST24E64, ST25E64 2 Figure Bus Protocol SCL SDA START CONDITION 1 SCL MSB SDA START CONDITION 1 2 SCL MSB SDA Write Operations Following a START condition the master sends a device select code with the RW bit reset to ’0’. The ST24/25E64 acknowledge this and waits for 2 bytes of address ...
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... ACK. The ST24/25E64 are ready to receive the sec- ond part of the instruction (the first byte of this instruction was already sent during Step1). ACK YES Next YES Memory Send Byte Address Proceed Proceed WRITE Operation Random Address READ Operation ST24E64, ST25E64 AI01099B 9/16 ...
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... ST24E64, ST25E64 Figure 8. Write Modes Sequence with Write Control = 0 WC BYTE WRITE DEV SEL R/W WC PAGE WRITE DEV SEL R/W WC (cont’d) ACK PAGE WRITE DATA IN N (cont’d) Read Operations On delivery, the memory content is set at all ”1’s” (or FFh). Current Address Read. The ST24/25E64 have an internal 13 bits address counter ...
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... Acknowledge in Read Mode. In all read modes the ST24/25E64 wait for an acknowledge during the 9th bit time. If the master does not pull the SDA line low during this time, the ST24/25E64 terminate the data transfer and switch to a standby state. ST24E64, ST25E64 DATA IN 2 AI01120 11/16 ...
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... ST24E64, ST25E64 Figure 10. Read Modes Sequence ACK CURRENT ADDRESS DEV SEL READ R/W ACK RANDOM ADDRESS DEV SEL * READ R/W ACK SEQUENTIAL CURRENT DEV SEL READ R/W ACK SEQUENTIAL RANDOM DEV SEL * READ R/W ACK DATA OUT N Note: * The 7 Most Significant bits of DEV SEL bytes of a Random Read (1st byte and 4th byte) must be identical. ...
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... Shortform catalogue. For further information on any aspect of this device, please contact the SGS-THOMSON Sales Office nearest to you. ST24E64 Package Temperature Range B PSDIP8 0.25mm Frame 6 – SO8 3 * –40 to 125 C 200mil Width ST24E64, ST25E64 Option TR Tape & Reel Packing 13/16 ...
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... ST24E64, ST25E64 PSDIP8 - 8 pin Plastic Skinny DIP, 0.25mm lead frame mm Symb Typ Min A 3.90 A1 0.49 A2 3.30 B 0.36 B1 1.15 C 0.20 D 9.20 E 7.62 – E1 6.00 e1 2.54 – PSDIP8 Drawing is not o scale 14/16 Max Typ 5.90 – 5.30 0.56 1.65 0.36 9.90 – 0.300 6.70 – 0.100 – 10.00 3. ...
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... 0.35 C 0.20 – D 5.15 E 5.20 e 1.27 – H 7. SO8b SO-b Drawing is not to scale ST24E64, ST25E64 inches Max Typ Min 2.03 0.25 0.004 1.78 0.45 0.014 – 0.008 – 5.35 0.203 5.40 0.205 – 0.050 – 8.10 0.303 0.80 0.020 0. Max 0.080 0.010 0.070 0.018 – ...
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... ST24E64, ST25E64 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 ...