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Atmel Electronic Components Datasheet

AT24C64C Datasheet

2-Wire Serial EEPROM

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AT24C64C pdf
(Features
Low-voltage and Standard-voltage Operation
– 1.8 (VCC = 1.8 to 5.5V)
Internally Organized 4096 x 8, 8192 x 8
2-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bi-directional Data Transfer Protocol
1 MHz (5.0V) and 400 KHz (1.8V Compatibility)
Write Protect Pin for Hardware Data Protection
32-Byte Page Write Mode (Partial Page Writes Allowed)
Self-Timed Write Cycle (5 ms max)
High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Lead-free/Halogen-free Devices
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead
TSSOP, 8-lead Ultra Thin Mini-MAP (MLP2x3), and 8-ball dBGA2 Packages.
Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers
Description
The AT24C32C/64C provides 32,768/65,536 bits of serial electrically erasable and
programmable read only memory (EEPROM) organized as 4096/8192 words of 8 bits
each. The device’s cascadable feature allows up to 8 devices to share a common 2-
wire bus. The device is optimized for use in many industrial and commercial applica-
tions where low power and low voltage operation are essential. The AT24C32C/64C is
available in space saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Lead Frame
Land Grid Array (ULA), 8-lead TSSOP, 8-lead Ultra Thin Mini-MAP (MLP2x3) and, 8-
ball dBGA2 packages and is accessed via a 2-wire serial interface. In addition, the
entire family is available in 1.8V (1.8 to 5.5V) version.
Pin Configurations
8-lead Ultra Thin
8-lead Ultra Lead Frame
Mini-MAP (MLP 2x3) Land Grid Array (ULA)
Pin Name
A0 - A2
SDA
Function
Address Inputs
Serial Data
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
SCL
Serial Clock Input
Bottom View
Bottom View
WP Write Protect
8-ball dBGA2
8-lead TSSOP
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
8-lead PDIP
A0
A1
A2
GND
1
2
3
4
8 VCC A0 1
7 WP
A1 2
6 SCL A2 3
5 SDA GND 4
8 VCC
7 WP
6 SCL
5 SDA
2-Wire
Serial EEPROM
32K (4096 x 8)
64K (8192 x 8)
AT24C32C
AT24C64C
Not Recommended
for New Design
5298A–SEEPR–1/08


Atmel Electronic Components Datasheet

AT24C64C Datasheet

2-Wire Serial EEPROM

No Preview Available !

AT24C64C pdf
Absolute Maximum Ratings*
Operating Temperature ..................................... -55 to +125°C
Storage Temperature......................................... -65 to +150°C
Voltage on Any Pin
with Respect to Ground ....................................... -1.0 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.
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 AT24C32C/64C
5298A–SEEPR–1/08


Part Number AT24C64C
Description 2-Wire Serial EEPROM
Maker ATMEL Corporation
Total Page 28 Pages
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