View AT24C11_1213717.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Features
* * * * * * * *
Low Voltage and Standard Voltage Operation: 2.7 (VCC = 2.7V to 5.5V) Internally Organized 128 x 8 Two-wire Serial Interface Bidirectional Data Transfer Protocol 1 MHz Compatibility 4-Byte Page Write Mode Self-Timed Write Cycle (5 ms max) High Reliability - Endurance: 1 Million Write Cycles - Data Retention: 100 Years * Automotive Grade and Lead-Free/Halogen-Free Devices Available * 8-lead JEDEC SOIC and 8-lead TSSOP Packages
Description
The AT24C11 provides 1024 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 128 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 AT24C11 is available in space saving 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a Two-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V). Table 1. Pin Configuration
Pin Name NC SDA SCL TEST Function No Connect Serial Data Serial Clock Input Test Input (GND or VCC)
Two-wire Automotive Temperature Serial EEPROM
1K (128 x 8)
AT24C11
8-lead TSSOP
8-lead SOIC
NC NC NC GND
1 2 3 4
8 7 6 5
VCC TEST SCL SDA
NC NC NC GND
1 2 3 4
8 7 6 5
VCC TEST SCL SDA
Rev. 5093D-SEEPR-2/07
1
Absolute Maximum Ratings*
Operating Temperature..................................-55C to +125C Storage Temperature .....................................-65C to +150C 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
2
AT24C11
5093D-SEEPR-2/07
AT24C11
Pin Description
SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each EEPROM device and negative edge clock data out of each device. SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open-drain driven and may be wire-ORed with any number of other open-drain or open collector devices.
Memory Organization
AT24C11, 1K SERIAL EEPROM: Internally organized with 32 pages of 4 bytes each. The 1K requires a 7-bit data word address for random word addressing.
Table 2. Pin Capacitance Applicable over recommended operating range from TA = 25C, f = 1.0 MHz, VCC = +2.7V to +5.5V
Symbol CI/O CIN Test Condition Input/Output Capacitance (SDA) Input Capacitance (A0, A1, A2, SCL) Max 8 6 Units pF pF Condition VI/O = 0V VIN = 0V
Table 3. DC Characteristics Applicable over recommended operating range from: TAE = -40C to +125C, VCC = +2.7V to +5.5V (unless otherwise noted)
Symbol VCC1 VCC2 ICC ICC ISB1 ISB2 ISB3 ISB4 ILI ILO VIL VIH VOL2 VOL1 Note: Parameter Supply Voltage Supply Voltage Supply Current VCC = 5.0V Supply Current VCC = 5.0V Standby Current VCC = 1.8V Standby Current VCC = 2.5V Standby Current VCC = 2.7V Standby Current VCC = 5.0V Input Leakage Current Output Leakage Current Input Low Level
(1) (1)
Test Condition
Min 2.7 4.5
Typ
Max 5.5 5.5
Units V V mA mA A A A A A A V V V V
READ at 100 kHz WRITE at 100 kHz VIN = VCC or VSS VIN = VCC or VSS VIN = VCC or VSS VIN = VCC or VSS VIN = VCC or VSS VOUT = VCC or VSS -0.6 VCC x 0.7 IOL = 2.1 mA IOL = 0.15 mA
0.4 2.0 0.6 1.4 1.6 8.0 0.10 0.05
1.0 3.0 3.0 4.0 4.0 18.0 3.0 3.0 VCC x 0.3 VCC + 0.5 0.4 0.2
Input High Level
Output Low Level VCC = 3.0V Output Low Level VCC = 1.8V
1. VIL min and VIH max are reference only and are not tested.
3
5093D-SEEPR-2/07
Table 4. AC Characteristics Applicable over recommended operating range from TA = -40C to +125C, VCC = +2.7V to +5.5V, CL = 1 TTL Gate and 100 pF (unless otherwise noted)
2.7V, 5.0V Symbol fSCL tLOW tHIGH tAA tBUF tHD.STA tSU.STA tHD.DAT tSU.DAT tR tF tSU.STO tDH tWR Endurance(1) Note: Parameter Clock Frequency, SCL Clock Pulse Width Low Clock Pulse Width High Clock Low to Data Out Valid Time the bus must be free before a new transmission can start(1) Start Hold Time Start Set-up Time Data In Hold Time Data In Set-up Time Inputs Rise Time(1) Inputs Fall Time(1) Stop Set-up Time Data Out Hold Time Write Cycle Time 5.0V, 25C, Page Mode 1M 0.25 50 5 0.4 0.4 0.05 0.5 0.25 0.6 0 100 0.3 100 0.55 Min Max 1000 Units kHz s s s s s s s ns s ns s ns ms Write Cycles
1. This parameter is ensured by characterization only.
4
AT24C11
5093D-SEEPR-2/07
AT24C11
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 Figure 4 on page 6). Data changes during SCL high periods will indicate a start or stop condition as defined below. START CONDITION: A high-to-low transition of SDA with SCL high is a start condition which must precede any other command (see Figure 5 on page 7). STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition which terminates all communications. After a read sequence, the stop command will place the EEPROM in a standby power mode (see Figure 5 on page 7). ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the EEPROM in 8-bit words. Any device on the system bus receiving data (when communicating with the EEPROM) must pull the SDA bus low to acknowledge that it has successfully received each word. This must happen during the ninth clock cycle after each word received and after all other system devices have freed the SDA bus. The EEPROM will likewise acknowledge by pulling SDA low after receiving each address or data word (see Figure 6 on page 7). STANDBY MODE: The AT24C11 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. MEMORY RESET: After an interruption in protocol, power loss or system reset, any 2wire part can be reset by following these steps: (a) Clock up to 9 cycles, (b) look for SDA high in each cycle while SCL is high and then (c) create a start condition as SDA is high.
5
5093D-SEEPR-2/07
Figure 2. Bus Timing SCL: Serial Clock, SDA: Serial Data I/O
Figure 3. Write Cycle Timing SCL: Serial Clock, SDA: Serial Data I/O
SCL
SDA
8th BIT WORDn
ACK
twr STOP CONDITION
(1)
START CONDITION
Note:
1. The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal clear/write cycle.
Figure 4. Data Validity
6
AT24C11
5093D-SEEPR-2/07
AT24C11
Figure 5. Start and Stop Definition
Figure 6. Output Acknowledge
7
5093D-SEEPR-2/07
Write Operations
BYTE WRITE: Following a start condition, a write operation requires a 7-bit data word address and a low write bit. Upon receipt of this address, the EEPROM will again respond with a zero and then clock in the first 8-bit data word. Following receipt of the 8bit data word, the EEPROM will output a zero and the addressing device, such as a microcontroller, must terminate the write sequence with a stop condition. At this time the EEPROM enters an internally-timed write cycle to the nonvolatile memory. All inputs are disabled during this write cycle, tWR, and the EEPROM will not respond until the write is complete (see refer to Figure 7 on page 9). PAGE WRITE: The AT24C11 is capable of a 4-byte page write. A page write is initiated the same as a byte write but the microcontroller does not send a stop condition after the first data word is clocked in. Instead, after the EEPROM acknowledges receipt of the first data word, the microcontroller can transmit up to three more data words. The EEPROM will respond with a zero after each data word received. The microcontroller must terminate the page write sequence with a stop condition (see Figure 8 on page 9). The data word address lower 2 bits are internally incremented following the receipt of each data word. The higher five data word address bits are not incremented, retaining the memory page row location. When the word address, internally generated, reaches the page boundary, the following byte is placed at the beginning of the same page. If more than four data words are transmitted to the EEPROM, the data word address will "roll over" and previous data will be overwritten. Access to 1 additional page is available upon request. ACKNOWLEDGE POLLING: Once the internally-timed write cycle has started and the EEPROM inputs are disabled, acknowledge polling can be initiated. This involves sending a start condition followed by the device address word. The read/write bit is representative of the operation desired. Only if the internal write cycle has completed will the EEPROM respond with a zero allowing the read or write sequence to continue.
Read Operations
Read operations are initiated the same way as write operations with the exception that the read/write select bit in the device address word is set to one. There are two read operations: byte read and sequential read. BYTE READ: A byte read is initiated with a start condition followed by a 7-bit data word address and a high read bit. The AT24C11 will respond with an acknowledge and then serially output 8 data bits. The microcontroller does not respond with a zero but does generate a following stop condition (see Figure 9 on page 9). SEQUENTIAL READ: Sequential reads are initiated the same as a byte read. After the microcontroller receives an 8-bit data word, it responds with an acknowledge. As long as the EEPROM receives an acknowledge, it will continue to increment the data word address and serially clock out sequential data words. When the memory address limit is reached, the data word address will "roll over" and the sequential read will continue. The sequential read operation is terminated when the microcontroller does not respond with an input zero but does generate a following stop condition (see Figure 10 on page 9).
8
AT24C11
5093D-SEEPR-2/07
AT24C11
Figure 7. Byte Write
Figure 8. Page Write
Figure 9. Byte Read
Figure 10. Sequential Read
9
5093D-SEEPR-2/07
AT24C11 Ordering Information
Ordering Code AT24C11N-10SQ-2.7 AT24C11-10TQ-2.7 Package 8S1 8A2 Operation Range Lead-free/Halogen-free/ Automotive Temperature (-40C to 85C)
Package Type 8S1 8A2 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC) 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP) Options -2.7 Low-Voltage (2.7V to 5.5V)
10
AT24C11
5093D-SEEPR-2/07
AT24C11
8S1 - JEDEC SOIC
C
1
E
E1
N
L
Top View End View
e B A
SYMBOL COMMON DIMENSIONS (Unit of Measure = mm) MIN 1.35 0.10 0.31 0.17 4.80 3.81 5.79 NOM - - - - - - - 1.27 BSC 0.40 0 - - 1.27 8 MAX 1.75 0.25 0.51 0.25 5.00 3.99 6.20 NOTE
A1
A A1 b C
D
D E1 E
Side View
e L
Note: These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc.
10/7/03 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TITLE 8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing Small Outline (JEDEC SOIC) DRAWING NO. 8S1 REV. B
R
11
5093D-SEEPR-2/07
8A2 - TSSOP
3 21
Pin 1 indicator this corner
E1
E
L1
N L
Top View
End View
COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN 2.90 NOM 3.00 6.40 BSC 4.30 - 0.80 0.19 4.40 - 1.00 - 0.65 BSC 0.45 0.60 1.00 REF 0.75 4.50 1.20 1.05 0.30 4 3, 5 MAX 3.10 NOTE 2, 5
b
A
D E E1 A
e D
A2
A2 b e
Side View
L L1
Notes:
1. This drawing is for general information only. Refer to JEDEC Drawing MO-153, Variation AA, for proper dimensions, tolerances, datums, etc. 2. Dimension D does not include mold Flash, protrusions or gate burrs. Mold Flash, protrusions and gate burrs shall not exceed 0.15 mm (0.006 in) per side. 3. Dimension E1 does not include inter-lead Flash or protrusions. Inter-lead Flash and protrusions shall not exceed 0.25 mm (0.010 in) per side. 4. 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 E1 to be determined at Datum Plane H. 5/30/02
R
2325 Orchard Parkway San Jose, CA 95131
TITLE 8A2, 8-lead, 4.4 mm Body, Plastic Thin Shrink Small Outline Package (TSSOP)
DRAWING NO. 8A2
REV. B
12
AT24C11
5093D-SEEPR-2/07
AT24C11
Revision History
Doc. Rev. 5093D 5093C
Date 1/2007 9/2006
Comments Removed PDIP package offering Removed PB parts Revision history implemented; Removed `Preliminary' status from datasheet.
13
5093D-SEEPR-2/07
Atmel Corporation
2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600
Atmel Operations
Memory
2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314
RF/Automotive
Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759
Regional Headquarters
Europe
Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500
Microcontrollers
2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60
Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom
Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel: (33) 4-76-58-30-00 Fax: (33) 4-76-58-34-80
Asia
Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369
ASIC/ASSP/Smart Cards
Zone Industrielle 13106 Rousset Cedex, France Tel: (33) 4-42-53-60-00 Fax: (33) 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel: (44) 1355-803-000 Fax: (44) 1355-242-743
Japan
9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581
Literature Requests
www.atmel.com/literature
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 CONDITIONS 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. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, 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.
(c) 2007 Atmel Corporation. All rights reserved. Atmel (R), logo and combinations thereof, Everywhere You Are (R) and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Printed on recycled paper.
5093D-SEEPR-2/07

▲Up To Search▲

Price & Availability of AT24C11

	To Download AT24C11 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .