AT24C02B ATMEL [ATMEL Corporation], AT24C02B Datasheet

no-image

AT24C02B

Manufacturer Part Number
AT24C02B
Description
Two-wire Serial EEPROM
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT24C02B-10PU-1.8
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT24C02B-10TU-1.8
Manufacturer:
ATMEL
Quantity:
2 558
Part Number:
AT24C02B-10TU-1.8
Manufacturer:
ROHM
Quantity:
1 632
Part Number:
AT24C02B-10TU-1.8
Manufacturer:
XILINX
0
Part Number:
AT24C02B-10TU-1.8
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT24C02B-PU
Manufacturer:
AT
Quantity:
20 000
Part Number:
AT24C02B-TH-B
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT24C02B-TH-T
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT24C02B-TH-T
Quantity:
4 068
Company:
Part Number:
AT24C02B-TH-T
Quantity:
4 068
Part Number:
AT24C02B-TSU-T
Manufacturer:
ATMEL
Quantity:
5 000
Part Number:
AT24C02BN-10SU-1.8
Manufacturer:
ATMEL/PBF
Quantity:
80
Part Number:
AT24C02BN-10SU-1.8
Manufacturer:
ATMEL
Quantity:
19
Part Number:
AT24C02BN-SH-B
Manufacturer:
ATMEL
Quantity:
7 907
Part Number:
AT24C02BN-SH-B
Manufacturer:
ATMEL
Quantity:
4 483
Features
Description
The AT24C02B provides 2048 bits of serial electrically erasable and programmable
read-only memory (EEPROM) organized as 256 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 AT24C02B is available in space-saving
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Mini-MAP (MLP 2x3)
TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial interface.
In addition, the AT24C02B is available in 1.8V (1.8V to 5.5V) version.
Table 1. Pin Configuration
Pin Name
A0 - A2
SDA
SCL
WP
NC
GND
VCC
Low-voltage and Standard-voltage Operation
Internally Organized 256 x 8 (2K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (2K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5 ms max)
High-reliability
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Mini-MAP (MLP 2x3), 5-lead SOT23,
8-lead TSSOP and 8-ball dBGA2 Packages
Lead-free/Halogen-free
Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
– 1.8 (V
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
CC
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
No Connect
Ground
Power Supply
= 1.8V to 5.5V)
8-lead Mini-MAP (MLP 2x3)
GND
SDA
SCL
GND
VCC
SDA
SCL
A0
A1
A2
WP
8-lead TSSOP
5-lead SOT23
Bottom View
1
2
3
8
7
6
5
1
2
3
4
1
2
3
4
8
7
6
5
5
4
A0
A1
A2
GND
VCC
WP
SCL
SDA
WP
VCC
,
GND
5-lead SOT23, 8-lead
GND
A0
A1
A2
VCC
SDA
SCL
A0
A1
A2
WP
8-ball dBGA2
Bottom View
8-lead SOIC
8-lead PDIP
1
2
3
4
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA
VCC
WP
SCL
SDA
Two-wire
Serial EEPROM
2K (256 x 8)
AT24C02B
5126B–SEEPR–10/05
1

Related parts for AT24C02B

AT24C02B Summary of contents

Page 1

... The AT24C02B is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Mini-MAP (MLP 2x3) TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial interface. In addition, the AT24C02B is available in 1.8V (1.8V to 5.5V) version. Table 1. Pin Configuration 8-lead Mini-MAP (MLP 2x3) ...

Page 2

... 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 1. Block Diagram AT24C02B 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

... DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1 and A0 pins are device address inputs that are hard wired for the AT24C02B. As many as eight 2K devices may be addressed on a single bus system (device addressing is discussed in detail under the Device Addressing section). ...

Page 4

... Output Low Level V = 3.0V OL2 CC V Output Low Level V = 1.8V OL1 CC Note min and V max are reference only and are not tested AT24C02B 4 = 25° 1.0 MHz SCL 40°C to +85°C, V – AI Test Condition READ at 100 kHz WRITE at 100 kHz ...

Page 5

... This parameter is ensured by characterization only. 5126B–SEEPR–10/05 = 40°C to +85° +1.8V to +5.5V TTL Gate and – 1.8, 2.5, 2.7 Min Max 400 1.2 0.6 50 0.1 0.9 1.2 0.6 0.6 0 100 0.3 300 0 AT24C02B 5.0-volt Min Max Units 1000 kHz 0.4 µs 0.4 µ 0.05 0.55 µs 0.5 µs 0.25 µs 0.25 µs 0 µs 100 ns 0.3 µs ...

Page 6

... EEPROM in 8-bit words. The EEPROM sends a zero to acknowledge that it has received each word. This happens during the ninth clock cycle. STANDBY MODE: The AT24C02B 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 7

... Figure 3. 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 Figure 4. Data Validity 5126B–SEEPR–10/05 ACK t wr STOP CONDITION AT24C02B (1) START CONDITION 7 ...

Page 8

... Figure 5. Start and Stop Definition Figure 6. Output Acknowledge AT24C02B 8 5126B–SEEPR–10/05 ...

Page 9

... This address stays valid between operations as long as the chip power is maintained. The address “roll over” during read is from the last byte of the last memory page to the first AT24C02B , to the WR ...

Page 10

... The sequential read operation is terminated when the microcontroller does not respond with a zero but does generate a following stop condition (see Figure 12 on page 12). AT24C02B 10 5126B–SEEPR–10/05 ...

Page 11

... Figure 7. Device Address Figure 8. Byte Write Figure 9. Page Write Figure 10. Current Address Read 5126B–SEEPR–10/05 AT24C02B 11 ...

Page 12

... Figure 11. Random Read Figure 12. Sequential Read AT24C02B 12 5126B–SEEPR–10/05 ...

Page 13

... AT24C02B Ordering Information Ordering Code (2) AT24C02B-10PU-1.8 (2) AT24C02BN-10SU-1.8 (2) AT24C02B-10TU-1.8 (3) AT24C02BY6-10YH-1.8 (2) AT24C02B-10TSU-1.8 (2) AT24C02BU3-10UU-1.8 (4) AT24C02B-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 table. 2. “U” designates Green Package & RoHS compliant. 3. “H” designates Green Package & RoHS compliant with NiPdAu lead finish. ...

Page 14

... E and eA measured with the leads constrained to be perpendicular to datum. 5. Pointed or rounded lead tips are preferred to ease insertion and b3 maximum dimensions do not include Dambar protrusions. Dambar protrusions shall not exceed 0.010 (0.25 mm). 2325 Orchard Parkway San Jose, CA 95131 R AT24C02B ...

Page 15

... E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 R 5126B–SEEPR–10/ Top View TITLE 8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing Small Outline (JEDEC SOIC) AT24C02B ∅ End View COMMON DIMENSIONS (Unit of Measure = mm) MIN MAX SYMBOL NOM A 1.35 – ...

Page 16

... 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 AT24C02B TITLE 8A2, 8-lead, 4 ...

Page 17

... Dual No Lead Package (DFN), (MLP 2x3 (6X) e (6X 1.50 REF. 1.50 REF. COMMON DIMENSIONS (Unit of Measure = mm) MIN MAX SYMBOL NOM D 2.00 BSC E 3.00 BSC D2 1.40 1. 0.60 A1 0.0 0.02 0. 0.55 A3 0.20 REF L 0.20 0.30 0.40 e 0.50 BSC b 0.20 0.25 0.30 DRAWING NO. AT24C02B b (8X) (8X) Pin 1 ID Pin (8X) L (8X) NOTE 2 8/26/05 REV. 8Y6 C 17 ...

Page 18

... The Dambar cannot be located on the lower radius of the foot. Minimum space between protrusion and an adjacent lead shall not be less than 0.07 mm. 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 R AT24C02B ...

Page 19

... This drawing is for general information only. 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 R 5126B–SEEPR–10/ TITLE 8U3-1, 8-ball, 1.50 x 2.00 mm Body, 0.50 mm pitch, Small Die Ball Grid Array Package (dBGA2) AT24C02B Side View COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX A 0 ...

Page 20

... Atmel Corporation 2005. All rights reserved. Atmel marks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 ...

Related keywords