Datenblatt-Suchmaschine für elektronische Bauteile |
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AD621ARZ Datenblatt(PDF) 1 Page - ATMEL Corporation |
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AD621ARZ Datenblatt(HTML) 1 Page - ATMEL Corporation |
1 / 21 page Features • Low-voltage and standard-voltage operation –V CC = 1.7V 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 • 2MHz clock rate (5V) • Self-timed write cycle (5ms max) • High reliability – Endurance: One million write cycles – Data retention: 100 years • 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead UDFN, 8-lead XDFN, and 8-ball VFBGA packages Description The Atmel ® AT93C56B/66B provides 2048/4096 bits of serial electrically erasable pro- grammable read-only memory (EEPROM) organized as 128/256 words of 16 bits each (when the ORG pin is connected to V CC) 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 commer- cial applications where low-power and low-voltage operations are essential. The AT93C56B/66B is available in space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead UDFN, 8-lead XDFN, and 8-ball VFBGA packages. The AT93C56B/66B 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 sep- arate 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 AT93C56B/66B operates from 1.7V to 5.5V. Figure 0-1. 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 VCC NC ORG GND CS SK DI DO 1 2 3 4 8 7 6 5 8-ball VFBGA 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 CS SK DI DO VCC NC ORG GND 8-lead TSSOP VCC NC ORG GND CS SK DI DO 8-lead UDFN Bottom view 1 2 3 4 8 7 6 5 VCC NC ORG GND CS SK DI DO 8-lead XDFN Bottom view 1 2 3 4 8 7 6 5 Three-wire Serial Electrically Erasable Programmable Read-only Memory 2K (256 x 8 or 128 x 16) 4K (512 x 8 or 256 x 16) Atmel AT93C56B Atmel AT93C66B 8735A–SEEPR–1/11 |
Ähnliche Teilenummer - AD621ARZ |
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Ähnliche Beschreibung - AD621ARZ |
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