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Atmel Electronic Components Datasheet



AT24CS04

(AT24CS04 / AT24CS08) EEPROM


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AT24CS04 pdf
Atmel AT24CS04 and AT24CS08
I2C-Compatible (2-wire) Serial EEPROM with a
Unique, Factory Programmed 128-bit Serial Number
4-Kbit (512 x 8), 8-Kbit (1024 x 8)
PRELIMINARY DATASHEET
Standard Features
Low-voltage operation
VCC = 1.7V to 5.5V
Internally organized as 512 x 8 (4-Kbit) or 1024 x 8 (8-Kbit)
I2C-compatible (2-wire) serial interface
Schmitt Trigger, filtered inputs for noise suppression
Bidirectional data transfer protocol
400kHz (1.7V) and 1MHz (2.5V, 2.7, 5.0V) compatibility
Write Protect pin for hardware data protection
16-byte page write mode
Partial page writes allowed
Self-timed write cycle (5ms max)
High-reliability
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Endurance: 1,000,000 write cycles
Data retention: 100 years
Green package options (Pb/Halide-free/RoHS-compliant)
8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, and 5-lead SOT23
Die sale options: wafer form and tape and reel available
Enhanced Features in the CS Serial EEPROM Series
All standard features supported
128-bit unique factory-programmed serial number
Permanently locked, read-only value
Stored in a separate memory area
Guaranteed unique across entire CS Series of Serial EEPROMs
8766A–SEEPR–6/12
Datasheet pdf - http://www.DataSheet4U.co.kr/



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AT24CS04 pdf
1. Description
The Atmel® AT24CS04 and AT24CS08 provides 4096/8192 bits of Serial Electrically Erasable and Programmable
Read-only Memory (EEPROM) organized as 512/1024 words of eight bits each. The device is optimized for use in many
industrial and commercial applications where low-power and low-voltage operation are essential. The AT24CS04/08 is
available in space-saving, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN and 5-lead SOT23 packages and is
accessed via a 2-wire serial interface. In addition, both devices fully operate from 1.7V to 5.5V VCC.
The AT24CS04/08 provides the additional feature of a factory programmed, guaranteed unique 128-bit serial number,
while maintaining all of the traditional features available in the 4-Kbit or 8-Kbit Serial EEPROM. The time consuming step
of performing and ensuring true serialization of product on a manufacturing line can be removed from the production flow
by employing the CS Series Serial EEPROM. The 128-bit serial number is programmed and permanently locked from
future writing during the Atmel production process. Further, this 128-bit location does not consume any of the user
read/write area of the 4-Kbit or 8-Kbit Serial EEPROM. The uniqueness of the serial number is guaranteed across the
entire CS Series of Serial EEPROMs, regardless of the size of the memory array or the type of interface protocol. This
means that as an application's needs for memory size or interface protocol evolve in future generations, any previously
deployed serial number from any Atmel CS Series Serial EEPROM part will remain valid.
2. Pin Descriptions and Pinout
Figure 2-1. Pin Configuration
Pin Name
NC
A1
A2
SDA
SCL
WP
GND
VCC
Function
No Connect
Address Input (4K only)
Address Input
Serial Data
Serial Clock Input
Write Protect
Ground
Power Supply
NC
A1/NC
A2
GND
8-lead SOIC
18
27
36
45
VCC
WP
SCL
SDA
8-lead TSSOP
NC
A1/NC
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
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8-pad UDFN
VCC 8
WP 7
SCL 6
SDA 5
1 NC
2 A1/NC
3 A2
4 GND
Bottom View
5-lead SOT23
SCL 1
5 WP
GND 2
SDA 3
4 VCC
Note:
For use of 5-lead SOT23, the software A2, A1, and A0 bits in the device address word must be set to
zero to properly communicate with the device.
Atmel AT24CS04/08 [PRELIMINARY DATASHEET]
8766A–SEEPR–6/12
2
Datasheet pdf - http://www.DataSheet4U.co.kr/



Part Number AT24CS04
Description (AT24CS04 / AT24CS08) EEPROM
Maker Atmel - Atmel
Total Page 24 Pages
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