at24c64b ATMEL Corporation, at24c64b Datasheet
at24c64b
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at24c64b Summary of contents
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... The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. The AT24C64B is available in space saving 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a 2-wire serial interface ...
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... Device Addressing section). If the pins are left floating, the A2, A1 and A0 pins will be internally pulled down to GND if the capacitive cou- AT24C64B 2 *NOTICE: ...
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... If the pin is left floating, the WP pin will be internally pulled down to GND if the capacitive coupling to the circuit board V recommends connecting the pin to GND. 3. Memory Organization AT24C64B, 64K SERIAL EEPROM: The 64K is internally organized as 256 pages of 32 bytes each. Random word addressing requires a 13 bit data word address. Pin Capacitance (1) ...
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... Page Mode ) Notes: 1. This parameter is characterized and is not 100% tested (T 2. This parameter is characterized and is not 100% tested. AT24C64B 4 = -40°C to +85° Parameter (1) (2) = 25° +1.8V to +5.5V TTL Gate and CC AT24C64B 1.8V – 3.6V 5.0V Min Max Min Max 400 400 1.3 1.2 0.6 0.6 100 50 0.2 ...
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... EEPROM in 8-bit words. The EEPROM sends a zero during the ninth clock cycle to acknowl- edge that it has received each word. STANDBY MODE: The AT24C64B features a low power standby mode which is enabled: a) upon power-up and b) after the receipt of the Stop bit and the completion of any internal operations ...
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... Write Cycle Timing SCL: Serial Clock, SDA: Serial Data I/O SCL SDA 8th BIT WORDn Note: 1. The write cycle time t is the time from a valid stop condition of a write sequence to the end of the internal clear/write cycle. WR AT24C64B 6 t HIGH LOW LOW ...
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Data Validity SDA SCL 9. Start and Stop Definition SDA SCL 10. Output Acknowledge SCL DATA IN DATA OUT 3350E–SEEPR–9/07 DATA STABLE DATA STABLE DATA CHANGE START 1 START STOP 8 9 ACKNOWLEDGE 7 ...
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... A low-V prevent data corruption in a noisy environment. DATA SECURITY: The AT24C64B has a hardware data protection scheme that allows the user to write protect the upper quadrant (16K bits) of memory when the WP pin 12. Write Operations BYTE WRITE: A write operation requires two 8-bit data word addresses following the device address word and acknowledgment ...
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... The address “roll over” during read is from the last byte of the last memory page, to the first byte of the first page. The address “roll over” during write is from the last byte of the current page to the first byte of the same page ...
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... Figure 13-2. Byte Write Figure 13-3. Page Write Note DON’T CARE bits Figure 13-4. Current Address Read AT24C64B 10 3350E–SEEPR–9/07 ...
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Figure 13-5. Random Read Note DON’T CARE bits Figure 13-6. Sequential Read 3350E–SEEPR–9/07 11 ...
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... AT24C64B Ordering Information Ordering Code (2) AT24C64BN-10SU-2.7 (2) AT24C64BN-10SU-1.8 (2) AT24C64B-10TU-2.7 (2) AT24C64B-10TU-1.8 (3) AT24C64B-W1.8-11 Notes: 1. For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristics tables. 2. “U” designates Green Package & RoHS compliant. 3. Available in waffle pack and wafer form; order as SL719 for wafer form. Bumped die available upon request. Please contact Serial EEPROM Marketing ...
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Packaging Information 8S1 – JEDEC SOIC TOP VIEW TOP VIEW e e SIDE VIEW SIDE VIEW Note: These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc. 1150 E. ...
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... Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall be 0.08 mm total in excess of the b dimension at maximum material condition. Dambar cannot be located on the lower radius of the foot. Minimum space between protrusion and adjacent lead is 0.07 mm. 5. Dimension D and determined at Datum Plane H. 2325 Orchard Parkway San Jose, CA 95131 R AT24C64B TITLE 8A2, 8-lead, 4 ...
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Revision History Doc. Rev. 3350E 3350E–SEEPR–9/07 Date Comments 9/2007 Updated to new template; implemented revision history. 15 ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © 2007 Atmel Corporation. All rights reserved. Atmel Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. International Atmel Asia ...