CAT28C256P-15 Catalyst Semiconductor, CAT28C256P-15 Datasheet
CAT28C256P-15
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CAT28C256P-15 Summary of contents
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... CE CONTROL OE LOGIC WE TIMER ADDR. BUFFER A 0 –A 5 & LATCHES © Catalyst Semiconductor, Inc. Characteristics subject to change without notice Hardware and software write protection Automatic page write operation: – bytes in 5ms –Page load timer End of write detection: –Toggle bit DATA DATA polling ...
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DIP Package ( I I ...
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ABSOLUTE MAXIMUM RATINGS* Temperature Under Bias ................. – +125 C Storage Temperature ....................... – +150 C Voltage on Any Pin with (2) Respect to Ground ........... –2. with Respect to Ground ............... –2.0V ...
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MODE SELECTION Mode Read Byte Write (WE Controlled) Byte Write (CE Controlled) Standby, and Write Inhibit Read and Write Inhibit CAPACITANCE 1.0 MHz Symbol Test (1) C Input/Output Capacitance I/O (1) C ...
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A.C. CHARACTERISTICS, Write Cycle V =5V+10%, unless otherwise specified CC Symbol Parameter t Write Cycle Time WC t Address Setup Time AS t Address Hold Time AH CE Setup Time Hold Time t CH (3) CE Pulse ...
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CAT28C256 DEVICE OPERATION Read Data stored in the CAT28C256 is transferred to the data bus when WE is held high, and both OE and CE are held low. The data bus is set to a high impedance state when either ...
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Page Write The page write mode of the CAT28C256 (essentially an extended BYTE WRITE mode) allows from bytes of data to be programmed within a single EEPROM write cycle. This effectively reduces the byte-write time by a ...
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CAT28C256 DATA Polling DATA polling is provided to indicate the completion of write cycle. Once a byte write or page write cycle is initiated, attempting to read the last byte written will output the complement of that data on I/O ...
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HARDWARE DATA PROTECTION The following is a list of hardware data protection fea- tures that are incorporated into the CAT28C256. (1) V sense provides for write protection when V CC falls below 3.5V min. (2) A power on delay mechanism, ...
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CAT28C256 To activate the software data protection, the device must be sent three write commands to specific addresses with specific data (Figure 9). This sequence of commands (along with subsequent writes) must adhere to the page write timing specifications (Figure ...
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ORDERING INFORMATION Prefix Device # CAT 28C256 Optional Product Number Company ID Package P: PDIP N: PLCC T13: TSOP (8mmx13.4mm) L: PDIP (Lead free, Halogen free) G: PLCC (Lead free, Halogen free) H13: TSOP (8mmx13.4mm) (Lead free, Halogen free) * ...
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... Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur. ...