AT24C01 ATMEL Corporation, AT24C01 Datasheet

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AT24C01

Manufacturer Part Number
AT24C01
Description
2-Wire Serial EEPROM
Manufacturer
ATMEL Corporation
Datasheet

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Features
Description
The AT24C01 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 industrial and commercial applications where low power
and low voltage operation are essential. The AT24C01 is available in space saving
8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a
2-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V)
and 1.8V (1.8V to 5.5V) versions.
Pin Configurations
Pin Name
NC
SDA
SCL
TEST
Low Voltage and Standard Voltage Operation
Internally Organized 128 x 8
2-Wire Serial Interface
Bidirectional Data Transfer Protocol
100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility
4-Byte Page Write Mode
Self-Timed Write Cycle (10 ms max)
High Reliability
Automotive Grade, Extended Temperature and Lead-Free Devices Available
8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP Packages
– 2.7 (V
– 1.8 (V
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
GND
NC
NC
NC
CC
CC
Function
No Connect
Serial Data
Serial Clock Input
Test Input (GND or VCC)
= 2.7V to 5.5V)
= 1.8V to 5.5V)
8-lead PDIP
1
2
3
4
8
7
6
5
VCC
TEST
SCL
SDA
GND
NC
NC
NC
GND
NC
NC
NC
1
2
3
4
8-lead TSSOP
1
2
3
4
8-lead SOIC
8
7
6
5
8
7
6
5
VCC
TEST
SCL
SDA
VCC
TEST
SCL
SDA
2-Wire Serial
EEPROM
1K (128 x 8)
AT24C01
Rev. 0134G–SEEPR–7/03
1

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AT24C01 Summary of contents

Page 1

... The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. The AT24C01 is available in space saving 8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a 2-wire serial interface ...

Page 2

... Voltage on Any Pin with Respect to Ground .....................................-1.0V to +7.0V Maximum Operating Voltage .......................................... 6.25V DC Output Current........................................................ 5.0 mA Block Diagram AT24C01 2 *NOTICE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- age to the device. This is a stress rating only and ...

Page 3

... 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. AT24C01, 1K SERIAL EEPROM: Internally organized with 128 pages of 1 byte each. The 1K requires a 7-bit data word address for random word addressing 1.0 MHz, V ...

Page 4

... Inputs Fall Time F t Stop Set-up Time SU.STO t Data Out Hold Time DH t Write Cycle Time WR (1) Endurance 5.0V, 25°C, Page Mode Note: 1. This parameter is characterized and is not 100% tested. AT24C01 (1) ( +125 +1.8V to +5.5V 2.7-, 2.5-, 1.8-volt 5.0-volt Min Max Min Max ...

Page 5

... EEPROM will likewise acknowledge by pulling SDA low after receiving each address or data word (refer to Acknowledge Response from Receiver timing diagram). STANDBY MODE: The AT24C01 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 ...

Page 6

... 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 AT24C01 6 ACK ( STOP CONDITION CONDITION START 0134G–SEEPR–7/03 ...

Page 7

... Data Validity Start and Stop Definition Output Acknowledge 0134G–SEEPR–7/03 AT24C01 7 ...

Page 8

... 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 AT24C01 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 (refer to Figure 3) ...

Page 9

... Figure 1. Byte Write Figure 2. Page Write Figure 3. Byte Read Figure 4. Sequential Read 0134G–SEEPR–7/03 AT24C01 9 ...

Page 10

... Ordering Information Ordering Code AT24C01-10PI-2.7 AT24C01-10SI-2.7 AT24C01-10TI-2.7 AT24C01-10PI-1.8 AT24C01-10SI-1.8 AT24C01-10TI-1.8 AT24C01-10SJ-2.7 AT24C01-10SJ-1.8 AT24C01-10SE-2.7 Note: 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. 8P3 8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP) 8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC) 8A2 8-lead, 0.170" ...

Page 11

... Dambar protrusions. Dambar protrusions shall not exceed 0.010 (0.25 mm). 2325 Orchard Parkway San Jose, CA 95131 R 0134G–SEEPR–7/ TITLE 8P3, 8-lead, 0.300" Wide Body, Plastic Dual In-line Package (PDIP) AT24C01 End View COMMON DIMENSIONS (Unit of Measure = inches) SYMBOL MIN NOM MAX A 0.210 A2 0.115 0.130 ...

Page 12

... Side View End View Note: This drawing is for general information only. Refer to JEDEC Drawing MS-012 for proper dimensions, tolerances, datums, etc. 2325 Orchard Parkway San Jose, CA 95131 R AT24C01 TITLE 8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing Small Outline (JEDEC SOIC) ...

Page 13

... End View COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX NOTE D 2.90 3.00 3.10 E 6.40 BSC E1 4.30 4.40 4.50 A – – 1.20 A2 0.80 1.00 1.05 b 0.19 – 0.30 e 0.65 BSC L 0.45 0.60 0.75 L1 1.00 REF DRAWING NO. AT24C01 5/30/02 REV. 8A2 B 13 ...

Page 14

... Fax: (81) 3-3523-7581 Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

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