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Atmel Electronic Components Datasheet



AT24C512

2-wire Serial EEPROM



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AT24C512 pdf
Features
Low-voltage and Standard-voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 3.6V)
Internally Organized 65,536 x 8
Two-wire Serial Interface
Schmitt Triggers, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 kHz (2.7V) and 100 kHz (1.8V) Compatibility
Write Protect Pin for Hardware and Software Data Protection
128-byte Page Write Mode (Partial Page Writes Allowed)
Self-timed Write Cycle (5 ms Max)
High Reliability
– Endurance: 100,000 Write Cycles
– Data Retention: 40 Years
Automotive Devices Available
8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP,
8-lead LAP, 8-lead SAP and 8-ball dBGA2 Packages
Die Sales: Wafer Form, Waffle Pack and Bumped Die
Description
The AT24C512 provides 524,288 bits of serial electrically erasable and programmable
read only memory (EEPROM) organized as 65,536 words of 8 bits each. The device’s
cascadable feature allows up to four devices to share a common two-wire bus. The
device is optimized for use in many industrial and commercial applications where low-
power and low-voltage operation are essential. The devices are available in space-
saving 8-pin PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead
Leadless Array (LAP), and 8-lead SAP packages. In addition, the entire family is avail-
able in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.
Table 1. Pin Configurations
Pin Name Function
A0–A1
Address Inputs
SDA
Serial Data
SCL Serial Clock Input
WP Write Protect
NC No Connect
8-lead TSSOP
8-lead PDIP
A0
A1
NC
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
A0
A1
NC
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-lead SOIC
A0
A1
NC
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-ball dBGA2
VCC
WP
SCL
SDA
8
7
6
5
1 A0
2 A1
3 NC
4 GND
Bottom View
8-lead Leadless Array
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 NC
4 GND
Bottom View
8-lead SAP
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 NC
4 GND
Bottom View
Two-wire Serial
EEPROM
512K (65,536 x 8)
AT24C512
Note: Not recommended for new
design; please refer to
AT24C512B datasheet.
Rev. 1116O–SEEPR–1/07
1



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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 1. Block Diagram
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age 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.
2 AT24C512
1116O–SEEPR–1/07



Part Number AT24C512
Description 2-wire Serial EEPROM
Maker ATMEL Corporation - ATMEL Corporation
Total Page 22 Pages
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