DatasheetsPDF.com

AT93C66 Dataheets PDF



Part Number AT93C66
Manufacturers ATMEL Corporation
Logo ATMEL Corporation
Description 3-wire Serial EEPROMs
Datasheet AT93C66 DatasheetAT93C66 Datasheet (PDF)

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 – 1K: 128 x 8 or 64 x 16 – 2K: 256 x 8 or 128 x 16 – 4K: 512 x 8 or 256 x 16 • Three-wire Serial Interface • 2 MHz Clock Rate (5V) • Self-timed Write Cycle (10 ms max) • High Reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years • Automotive Grade, Extended Temperature and Lead-Free/Halogen-Free Devices Available • 8-lead PDIP, .

  AT93C66   AT93C66


Document
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 – 1K: 128 x 8 or 64 x 16 – 2K: 256 x 8 or 128 x 16 – 4K: 512 x 8 or 256 x 16 • Three-wire Serial Interface • 2 MHz Clock Rate (5V) • Self-timed Write Cycle (10 ms max) • High Reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years • Automotive Grade, Extended Temperature and Lead-Free/Halogen-Free Devices Available • 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead MAP, 8-lead TSSOP, and 8-ball dBGA2 Packages Description The AT93C46/56/66 provides 1024/2048/4096 bits of serial electrically erasable programmable read-only memory (EEPROM), organized as 64/128/256 words of 16 bits each (when the ORG pin is connected to VCC), and 128/256/512 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 AT93C46/56/66 is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead MAP, 8-lead TSSOP, and 8-lead dBGA2 packages. The AT93C46/56/66 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 DO pin. 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 AT93C46/56/66 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 DC Don’t Connect 8-lead SOIC 8-lead dBGA2 CS 1 SK 2 DI 3 DO 4 8 VCC 7 DC 6 ORG 5 GND VCC DC ORG GND 8 7 6 5 1 CS 2 SK 3 D1 4 D0 8-lead PDIP CS 1 SK 2 DI 3 DO 4 8 VCC 7 DC 6 ORG 5 GND 8-lead SOIC Rotated (R) (1K JEDEC Only) DC VCC CS SK 1 2 3 4 8 ORG 7 GND 6 DO 5 DI 8-lead MAP VCC 8 DC 7 ORG 6 GND 5 1 CS 2 SK 3 DI 4 DO 8-lead TSSOP CS 1 SK 2 DI 3 DO 4 8 VCC 7 DC 6 ORG 5 GND Three-wire Serial EEPROMs 1K (128 x 8 or 64 x 16) 2K (256 x 8 or 128 x 16) 4K (512 x 8 or 256 x 16) AT93C46 AT93C56(1) AT93C66(2) Note: 1. This device is not recommended for new designs. Please refer to AT93C56A. 2. This device is not recommended for new designs. Please refer to AT93C66A. 0172Z–SEEPR–9/05 1 Absolute Maximum Ratings* Operating Temperature......................................−55°C to +125°C Storage Temperature .........................................−65°C to +150°C Voltage on Any Pin with Respect to Ground ........................................ −1.0V to +7.0V Maximum Operating Voltage .......................................... 6.25V DC Output Current........................................................ 5.0 mA *NOTICE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability Figure 1. Block Diagram Note: When the ORG pin is connected to VCC, the “x 16” organization is selected. When it is connected to ground, the “x 8” organization is selected. If the ORG pin is left unconnected and the application does not load the input beyond the capability of the internal 1 Meg ohm pullup, then the “x 16” organization is selected. The feature is not available on the 1.8V devices. For the AT93C46, if “x 16” organization is the mode of choice and Pin 6 (ORG) is left unconnected, Atmel recommends using the AT93C46A device. For more details, see the AT93C46A datasheet. 2 AT93C46/56/66 0172Z–SEEPR–9/05 AT93C46/56/66 Table 2. Pin Capacitance(1) Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +5.0V (unless otherwise noted) Symbol Test Conditions Max Units Conditions COUT CIN Note: Output Capacitance (DO) Input Capacitance (CS, SK, DI) 1. This parameter is characterized and is not 100% tested. 5 pF VOUT = 0V 5 pF VIN = 0V Table 3. DC Characteristics Applicable over recommended operating range from: TAI = −40°C to +85°C, VCC = +1.8V to +5.5V, TAE = -40°C to +125°C, VCC = +1.8V to +5.5V (unless otherwise noted) Symbol Parameter Test Condition Min Typ Max VCC1 Supply Voltage 1.8 5.5 VCC2 Supply Voltage 2.7 5.5 VCC3 Supply Voltage 4.5 5.5 READ at 1.0 MHz ICC Supply Current VCC = 5.0V WRITE at 1.0 MHz 0.5 2.0 0.5 2.0 ISB1 Standb.


AT93C56 AT93C66 AT29LV512


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)