at24c256b-10tu-1.8 ATMEL Corporation, at24c256b-10tu-1.8 Datasheet
at24c256b-10tu-1.8
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at24c256b-10tu-1.8 Summary of contents
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... Die Sales: Wafer Form, Waffle Pack and Bumped Wafers Description The AT24C256B provides 262,144 bits of serial electrically erasable and programma- ble read-only memory (EEPROM) organized as 32,768 words of 8 bits each. The device’s cascadable feature allows up to eight devices to share a common two-wire bus ...
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... Voltage on Any Pin with Respect to Ground ....................................... − 1.0V to +7.0V Maximum Operating Voltage .......................................... 6.25V DC Output Current........................................................ 5.0 mA Figure 1-1. Block Diagram VCC GND WP SCL SDA AT24C256B 2 *NOTICE: START STOP LOGIC SERIAL CONTROL LOGIC LOAD COMP DEVICE ADDRESS LOAD INC COMPARATOR R/W DATA WORD ADDR/COUNTER ...
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... Atmel recommends always connecting the WP pins to a known state. When using a pull-up resistor, Atmel recommends using 10kΩ or less. 3. Memory Organization AT24C256B, 256K SERIAL EEPROM: The 256K is internally organized as 512 pages of 64 bytes each. Random word addressing requires a 15-bit data word address. (1) Table 3-1. ...
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... Input High Level IH V Output Low Level OL2 V Output Low Level OL1 Notes min and V max are reference only and are not tested AT24C256B 4 = − 40°C to +85° Test Condition V = 5.0V READ at 400 kHz 5.0V WRITE at 400 kHz 1.8V ...
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Table 3-3. AC Characteristics (Industrial Temperature) Applicable over recommended operating range from T erwise noted). Test conditions are listed in Note 2. Symbol Parameter f Clock Frequency, SCL SCL t Clock Pulse Width Low LOW t Clock Pulse Width High ...
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... EEPROM in 8-bit words. The EEPROM sends a “0” during the ninth clock cycle to acknowledge that it has received each word. STANDBY MODE: The AT24C256B features a low-power standby mode that is enabled upon power-up and after the receipt of the stop bit and the completion of any internal operations. ...
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SOFTWARE RESET: After an interruption in protocol, power loss or system reset, any 2-wire part can be protocol reset by following these steps: (a) Create a start bit condition, (b) clock 9 cycles, (c) create another start bit followed by ...
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... Figure 4-6. Output Acknowledge SCL DATA IN DATA OUT AT24C256B 8 1 START 8 9 ACKNOWLEDGE 5279B–SEEPR–3/08 ...
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... Upon a compare of the device address, the EEPROM will output a “0” compare is not made, the device will return to a standby state. DATA SECURITY: The AT24C256B has a hardware data protection scheme that allows the user to write protect the whole memory when the WP pin 5279B– ...
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... The read/write bit is representative of the operation desired. Only if the internal write cycle has completed will the EEPROM respond with a “0”, allowing the read or write sequence to continue. AT24C256B the nonvolatile memory. All inputs are disabled during this ...
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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. Once the device address with the read/write select bit set to “1” is clocked in and acknowledged by the EEPROM, the current address data word is serially clocked out. The microcontroller does not respond with an input “ ...
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... The sequential read operation is terminated when the microcontroller does not respond with a “0” but does generate a following stop condition (see Figure 7-3. AT24C256B 12 Figure Sequential Read 7-3). 5279B– ...
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... AT24C256B Ordering Codes Ordering Code AT24C256B-PU (Bulk Form Only) (1) AT24C256BN-SH-B (NiPdAu Lead Finish) (2) AT24C256BN-SH-T (NiPdAu Lead Finish) (1) AT24C256BW-SH-B (NiPdAu Lead Finish) (2) AT24C256BW-SH-T (NiPdAu Lead Finish) (1) AT24C256B-TH-B (NiPdAu Lead Finish) (2) AT24C256B-TH-T (NiPdAu Lead Finish) (2) AT24C256BY7-YH-T (NiPdAu Lead Finish) (2) AT24C256BU2-UU-T AT24C256B-W-11 Notes: 1. “-B” denotes bulk. ...
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... Pin 1 Indicator (Dot) 8-SOIC TOP MARK |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| |---|---|---|---|---|---|---|---| * Lot Number |---|---|---|---|---|---|---|---| | Pin 1 Indicator (Dot) AT24C256B SEAL YEAR Seal Week 6: 2006 | | 7: 2007 8: 2008 2009 Lot Number to Use ALL Characters in Marking BOTTOM MARK Seal Year Y = SEAL YEAR | Seal Week 6: 2006 ...
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TOP MARK Pin 1 Indicator (Dot) | |---|---|---|---| * |---|---|---|---|---| |---|---|---|---|---| BOTTOM MARK |---|---|---|---|---|---|---| X X |---|---|---|---|---|---|---| |---|---|---|---|---|---|---| <- Pin 1 Indicator 8-Ultra Thin SAP TOP MARK |---|---|---|---|---|---|---|---| ...
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... LINE 2-------> ONE DIGIT YEAR CODE 4: 2004 5: 2005 6: 2006 M = SEAL MONTH (USE ALPHA DESIGNATOR A- JANUARY B = FEBRUARY " " """"""" OCTOBER K = NOVEMBER L = DECEMBER TC = TRACE CODE AT24C256B 16 2EBU YMTC |<-- Pin 1 This Corner 7: 2007 8: 2008 9: 2009 5279B–SEEPR–3/08 ...
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Packaging Information 8P3 – PDIP Top View PLCS Side View Notes: 1. This drawing is for general information only; refer to JEDEC Drawing MS-001, Variation BA, for additional information. 2. Dimensions A and L are ...
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... JEDEC SOIC Top View e 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. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 R AT24C256B TITLE 8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing ...
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EIAJ SOIC e e Notes: 1. This drawing is for general information only; refer to EIAJ Drawing EDR-7320 for additional information. 2. Mismatch of the upper and lower dies and resin burrs aren't included recommended ...
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... A1 BALL PAD CORNER e (e1) 1. Dimension 'b' is measured at the maximum solder ball diameter. This drawing is for general information only. 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 R AT24C256B Top View A1 BALL PAD CORNER (d1) Bottom View ...
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TSSOP Pin 1 indicator this corner N Top View Side View Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing MO-153, Variation AA, for proper dimensions, tolerances, datums, ...
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... SAP PIN 1 INDEX AREA D E 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 R AT24C256B 22 A PIN COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN A – A1 0.00 D 5.80 E 4.70 D1 3.30 E1 3. 0.50 TITLE 8Y7, 8-lead (6.00 x 4.90 mm Body) Ultra-Thin SOIC Array Package (UTSAP ...
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... Revision History Doc. Rev. 5279B 5279A 5279B–SEEPR–3/08 Date Comments 3/2008 Format changes to document AT24C256B product with date code 2008 work week 14 (814) or later supports 5Vcc operation 1/2008 Initial document release 23 ...
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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. © 2008 Atmel Corporation. All rights reserved. Atmel of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. International Atmel Asia ...