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Atmel Electronic Components Datasheet

AT24C512B Datasheet

Two-wire Serial EEPROM 512K

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AT24C512B pdf
Features
Low-voltage and Standard-voltage Operation
– 1.8v (VCC = 1.8V to 3.6V)
– 2.5v (VCC = 2.5V to 5.5V)
Internally Organized 65,536 x 8
Two-wire Serial Interface
Schmitt Triggers, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (2.5V, 5.5V), 400 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: 1,000,000 Write Cycles
– Data Retention: 40 Years
Lead-free/Halogen-free Devices
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead TSSOP, 8-ball dBGA2, and
8-lead Ultra Thin Small Array (SAP) Packages
Die Sales: Wafer Form, Waffle Pack and Bumped Die
Two-wire Serial
EEPROM
512K (65,536 x 8)
AT24C512B
with Three Device Address Inputs
Description
The AT24C512B provides 524,288 bits of serial electrically erasable and programma-
ble read only memory (EEPROM) organized as 65,536 words of 8 bits each. The
device’s cascadable feature allows up to eight 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 JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead TSSOP,
8-ball dBGA2 and 8-lead Ultra Thin SAP packages. In addition, the entire family is
available in 1.8V (1.8V to 3.6V) and 2.5V (2.5V to 5.5V) versions.
Not Recommended
for New Design.
Replaced by
AT24C512C.
Table 0-1.
Pin Name
A0–A2
SDA
SCL
WP
Pin Configurations
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
8-lead TSSOP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-lead PDIP
A0
A1
A2
GND
1
2
3
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 A2
4 GND
Bottom View
8-lead Ultra Thin SAP
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
Bottom View
8-lead SOIC
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
Rev. 5297A–SEEPR–1/08


Atmel Electronic Components Datasheet

AT24C512B Datasheet

Two-wire Serial EEPROM 512K

No Preview Available !

AT24C512B pdf
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 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.
Figure 0-1. Block Diagram
VCC
GND
WP
SCL
SDA
A2
A1
A0
START
STOP
LOGIC
LOAD
DEVICE
ADDRESS
COMPARATOR
SERIAL
CONTROL
EN
H.V. PUMP/TIMING
LOGIC
COMP
LOAD INC
DATA RECOVERY
R/W DATA WORD
ADDR/COUNTER
EEPROM
DIN
DOUT
Y DEC
SERIAL MUX
DOUT/ACK
LOGIC
2 AT24C512B
5297A–SEEPR–1/08


Part Number AT24C512B
Description Two-wire Serial EEPROM 512K
Maker ATMEL Corporation
Total Page 26 Pages
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