AT24C512_07 Datasheet, PDF (1/22 Pages) ATMEL Corporation – Two-wire Serial EEPROM

Features
• Low-voltage and Standard-voltage Operation
– 2.7 (V_CC = 2.7V to 5.5V)
– 1.8 (V_CC = 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 1
A1 2
NC 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
A0 1
A1 2
NC 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
8-lead SOIC
A0 1
A1 2
NC 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
8-ball dBGA2
VCC 8
WP 7
SCL 6
SDA 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
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