AT24HC02BN-SH-T Atmel, AT24HC02BN-SH-T Datasheet
AT24HC02BN-SH-T
Specifications of AT24HC02BN-SH-T
AT24HC02BN-10SU-1.8 SL383
Available stocks
Related parts for AT24HC02BN-SH-T
AT24HC02BN-SH-T Summary of contents
Page 1
... JEDEC SOIC and 8-lead TSSOP Packages 2. Description The AT24HC02B/04B provides 2048/4096 bits of serial electrically erasable and pro- grammable read-only memory (EEPROM) organized as 256/512 words of 8 bits each. The device is optimized for use in many automotive applications where low-power and low-voltage operation are essential. The AT24HC02B/04B is available in space-sav- ing 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a two-wire serial interface ...
Page 2
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 Figure 2-1. Block Diagram 3. Pin ...
Page 3
The AT24HC04B uses the A2 and A1 inputs for hardware addressing, and a total of four 4K devices may be addressed on a single bus system. The A0 pin is a no-connect. WRITE PROTECT (WP): The AT24HC02B/04B have a Write ...
Page 4
... Memory Organization AT24HC02B, 2K SERIAL EEPROM: Internally organized with 32 pages of 8 bytes each, the 2K requires an 8-bit data word address for random word addressing. AT24HC04B, 4K SERIAL EEPROM: Internally organized with 32 pages of 16 bytes each. Ran- dom word addressing requires a 9-bit data word address. ...
Page 5
Table 4-3. AC Characteristics Applicable over recommended operating range from T 100 pF (unless otherwise noted) Symbol Parameter f Clock Frequency, SCL SCL t Clock Pulse Width Low LOW t Clock Pulse Width High HIGH t Noise Suppression Time I ...
Page 6
Device Operation CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an external device. Data on the SDA pin may change only during SCL low time periods (see to 7). Data changes during SCL high periods ...
Page 7
Bus Timing Figure 6-1. SCL: Serial Clock, SDA: Serial Data I/O 7. Write Cycle Timing Figure 7-1. SCL: Serial Clock, SDA: Serial Data I/O SCL SDA 8th BIT WORDn Note: 1. The write cycle time t is the time ...
Page 8
... The next 3 bits are the A2, A1 and A0 device address bits for the 2K EEPROM. These 3 bits must compare to their corresponding hardwired input pins. The 4K EEPROM only uses the A2 and A1 device address bits with the third bit being a memory address bit (See hardwired input pins. The A0 pin is no-connect. ...
Page 9
... 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. 5192C–SEEPR–01/ the nonvolatile memory. All inputs are disabled during this write cycle WR 11). AT24HC02B/04B Figure 10-2 on page 10) ...
Page 10
... 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. Once the device address with the read/write select bit set to “ ...
Page 11
Figure 10-3. Page Write Figure 10-4. Current Address Read Figure 10-5. Random Read Figure 10-6. Sequential Read 5192C–SEEPR–01/09 AT24HC02B/04B 11 ...
Page 12
... AT24HC02B Ordering Information Ordering Code (1) AT24HC02BN-SP25-B (2) AT24HC02BN-SP25-T (1) AT24HC02B-TP25-B (2) AT24HC02B-TP25-T Notes: 1. “-B” denotes bulk. 2. “-T” denotes tape and reel. SOIC = 4K per reel. TSSOP = 5K per reel. 8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC) 8A2 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP) − ...
Page 13
AT24HC04B Ordering Information Ordering Code (1) AT24HC04BN-SP25-B (2) AT24HC04BN-SP25-T (1) AT24HC04B-TP25-B (2) AT24HC04B-TP25-T Notes: 1. “-B” denotes bulk. 2. “-T” denotes tape and reel. SOIC = 4K per reel. TSSOP = 5K per reel. 8S1 8-lead, 0.150" Wide, Plastic ...
Page 14
Packaging Information 13.1 8A2 - 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 ...
Page 15
JEDEC SOIC 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 5192C–SEEPR–01/09 ...
Page 16
Revision History Doc. Rev. 5192C 5192B 5192A AT24HC02B/04B 16 Date Comments 1/2009 Removed Preliminary status. Added information for AT24HC04B. 3/2008 Updated to new template. 1/2007 Initial document release. 5192C–SEEPR–01/09 ...
Page 17
... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...