(China (Mainland))
Product Summary
The AT28C64-25DM/883 is a low-power, high-performance 8,192 words by 8 bit nonvolatile Electrically Erasable and Programmable Read Only Memory with popular, easy to use features. The AT28C64-25DM/883 is manufactured with reliable nonvolatile technology. The device is accessed like a Static RAM for the read or write cycles without the need for external components. During a byte write, the address and data are latched internally, freeing the microprocessor address and data bus for other operations. Following the initiation of a write cycle, the AT28C64-25DM/883 will go to a busy state and automatically clear and write the latched data using an internal control timer. The AT28C64-25DM/883 includes two methods for detecting the end of a write cycle, level detection of RDY/BUSY (unless pin 1 is N.C.) and DATA POLLING of I/O7. Once the end of a write cycle has been detected, a new access for a read or write can begin.
Parametrics
AT28C64-25DM/883 absolute maximum ratings: (1)Temperature Under Bias: -55 to +125℃; (2)Storage Temperature: -65 to +150℃; (3)All Input Voltages (including NC Pins) with Respect to Ground: -0.6V to +6.25V; (4)All Output Voltages with Respect to Ground: -0.6V to VCC + 0.6V; (5)Voltage on OE and A9 with Respect to Ground: -0.6V to +13.5V.
Features
AT28C64-25DM/883 features: (1)Fast Read Access Time: 120 ns; (2)Fast Byte Write: 200 ms or 1 ms; (3)Self-Timed Byte Write Cycle: Internal Address and Data Latches; Internal Control Timer; Automatic Clear Before Write; (4)Direct Microprocessor Control: READY/BUSY Open Drain Output; DATA Polling; (5)Low Power: 30 mA Active Current; 100 mA CMOS Standby Current High Reliability: Endurance: 104 or 105 Cycles; Data Retention: 10 Years; (6)5V ± 10% Supply; (7)CMOS and TTL Compatible Inputs and Outputs; (8)JEDEC Approved Byte-Wide Pinout; (9)Commercial and Industrial Temperature Ranges.
Diagrams
