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AT93C66AY6-10YH-1.8 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT93C66AY6-10YH-1.8 Datasheet(HTML) 1 Page - ATMEL Corporation |
1 / 20 page 1 Features • Low-voltage and Standard-voltage Operation – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 5.5V) • User-selectable Internal Organization – 2K: 256 x 8 or 128 x 16 – 4K: 512 x 8 or 256 x 16 • Three-wire Serial Interface • Sequential Read Operation • 2 MHz Clock Rate (5V) • Self-timed Write Cycle (10 ms Max) • High Reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years • Automotive Devices Available • 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead Ultra Thin mini-MAP (MLP 2x3), 8-lead TSSOP and 8-ball dBGA2 Packages Description The AT93C56A/66A provides 2048/4096 bits of serial electrically erasable program- mable read-only memory (EEPROM) organized as 128/256 words of 16 bits each (when the ORG pin is connected to VCC) and 256/512 words of 8 bits each (when the ORG pin is tied to ground). The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT93C56A/66A is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8- lead EIAJ SOIC, 8-lead Ultra Thin mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball dBGA2 packages. The AT93C56A/66A is enabled through the Chip Select pin (CS) and accessed via a three-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a read instruction at DI, the address is decoded and the data is clocked out serially on the data output pin DO. The write cycle is completely self-timed and no separate erase cycle is required before write. The write cycle is only enabled when the part is in the Erase/Write Enable State. When CS is brought “high” following the initiation of a write cycle, the DO pin outputs the Ready/Busy status of the part. The AT93C56A/66A is available in 2.7V to 5.5V and 1.8V to 5.5V versions. Table 1. Pin Configurations Pin Name Function CS Chip Select SK Serial Data Clock DI Serial Data Input DO Serial Data Output GND Ground VCC Power Supply ORG Internal Organization NC No Connect Three-wire Serial EEPROM 2K (256 x 8 or 128 x 16) 4K (512 x 8 or 256 x 16) AT93C56A AT93C66A 3378K–SEEPR–12/06 VCC NC ORG GND CS SK DI DO 1 2 3 4 8 7 6 5 8-ball dBGA2 Bottom view 1 2 3 4 8 7 6 5 CS SK DI DO VCC NC ORG GND 8-lead SOIC 1 2 3 4 8 7 6 5 VCC NC ORG GND CS SK DI DO 8-lead Ultra Thin mini-MAP (MLP 2x3) Bottom view 1 2 3 4 8 7 6 5 CS SK DI DO VCC NC ORG GND 8-lead PDIP 1 2 3 4 8 7 6 5 CS SK DI DO VCC NC ORG GND 8-lead TSSOP |
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