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Atmel Electronic Components Datasheet



AT24C164

2-Wire Serial EEPROM



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AT24C164 pdf
Features
Low Voltage and Standard Voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
Internally Organized 2048 x 8 (16K)
Two-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility
Write Protect Pin for Hardware Data Protection
Cascadable Feature Allows for Extended Densities
16-Byte Page Write Mode
Partial Page Writes Are Allowed
Self-Timed Write Cycle (10 ms max)
High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Automotive Grade, Extended Temperature and Lead-free/Halogen-free
Devices Available
8-lead PDIP and 8-lead JEDEC SOIC Packages
Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
Description
The AT24C164 provides 16,384 bits of serial electrically erasable and programmable
read only memory (EEPROM) organized as 2048 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 AT24C164 is available in space
saving 8-lead PDIP and 8-lead JEDEC SOIC packages and is accessed via a two-
wire serial interface. In addition, this device is available in 2.7V (2.7V to 5.5V) and
1.8V (1.8V to 5.5V) versions.
Table 1. Pin Configurations
8-lead SOIC
Pin Name
A0 - A2
SDA
SCL
Function
Address Inputs
Serial Data
Serial Clock Input
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
WP Write Protect
Two-Wire Serial
EEPROM
16K (2048 x 8)
AT24C164(1)
Note:
1. Not recommended for a
new design; Please
refer to AT24C16B
datasheet. For cascad-
ability features of the
AT24C164 (A0-A2),
please move to the
AT24C32C
device
which allows up to eight
devices that may be
addressed on a single
bus system.
8-lead PDIP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
Rev. 0105J–SEEPR–12/06
1



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AT24C164 pdf
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
WP
*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 AT24C164
0105J–SEEPR–12/06



Part Number AT24C164
Description 2-Wire Serial EEPROM
Maker ATMEL Corporation - ATMEL Corporation
Total Page 17 Pages
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