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Atmel Electronic Components Datasheet

AT24C16 Datasheet

2-Wire Serial EEPROM

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AT24C16 pdf
Features
Low-Voltage and Standard-Voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 2.7V to 5.5V)
– 2.5 (VCC = 2.5V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K),
1024 x 8 (8K) or 2048 x 8 (16K)
2-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
8-Byte Page (1K, 2K), 16-Byte Page (4K, 8K, 16K) Write Modes
Partial Page Writes Are Allowed
Self-Timed Write Cycle (10 ms max)
High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >3000V
Automotive Grade and Extended Temperature Devices Available
8-Pin and 14-Pin JEDEC SOIC, 8-Pin PDIP, 8-Pin MSOP, and 8-Pin TSSOP Packages
Description
The AT24C01A/02/04/08/16 provides 1024/2048/4096/8192/16384 bits of serial elec-
trically erasable and programmable read only memory (EEPROM) organized as
128/256/512/1024/2048 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low power and low voltage operation are
essential. The AT24C01A/02/04/08/16 is available in space saving 8-pin PDIP,
(AT24C01A/02/04/08/16), 8-Pin MSOP (AT24001A/02), 8-Pin TSSOP
(AT24C01A/02/04/08/16), and 8-Pin and 14-Pin JEDEC SOIC
(AT24C01A/02/04/08/16) packages and is accessed via a 2-wire serial interface. In
addition, the entire family is available in 5.0V (4.5V to 5.5V), 2.7V (2.7V to 5.5V), 2.5V
(2.5V to 5.5V) and 1.8V (1.8V to 5.5V) versions.
Pin Configurations
8-Pin TSSOP
Pin Name Function
A0 to A2 Address Inputs
SDA
Serial Data
SCL Serial Clock Input
WP Write Protect
NC No Connect
14-Pin SOIC
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-Pin MSOP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
NC
A0
A1
NC
A2
GND
NC
1
2
3
4
5
6
7
14 NC
13 VCC
12 WP
11 NC
10 SCL
9 SDA
8 NC
8-Pin PDIP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-Pin SOIC
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
2-Wire
Serial EEPROM
1K (128 x 8)
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
16K (2048 x 8)
AT24C01A
AT24C02
AT24C04
AT24C08
AT24C16
2-Wire, 1K
Serial E2PROM
Rev. 0180D–06/98
1


Atmel Electronic Components Datasheet

AT24C16 Datasheet

2-Wire Serial EEPROM

No Preview Available !

AT24C16 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
Block Diagram
*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.
Pin Description
SERIAL CLOCK (SCL): The SCL input is used to positive
edge clock data into each EEPROM device and negative
edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for
serial data transfer. This pin is open-drain driven and may
be wire-ORed with any number of other open-drain or open
collector devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1
and A0 pins are device address inputs that are hard wired
for the AT24C01A and the AT24C02. As many as eight
1K/2K devices may be addressed on a single bus system
(device addressing is discussed in detail under the Device
Addressing section).
The AT24C04 uses the A2 and A1 inputs for hard wire
addressing and a total of four 4K devices may be
addressed on a single bus system. The A0 pin is a no con-
nect.
The AT24C08 only uses the A2 input for hardwire address-
ing and a total of two 8K devices may be addressed on a
single bus system. The A0 and A1 pins are no connects.
The AT24C16 does not use the device address pins which
limits the number of devices on a single bus to one. The
A0, A1 and A2 pins are no connects.
WRITE PROTECT (WP): The AT24C01A/02/04/16 has a
Write Protect pin that provides hardware data protection.
The Write Protect pin allows normal read/write operations
when connected to ground (GND). When the Write Protect
pin is connected to VCC, the write protection feature is
enabled and operates as shown in the following table.
2 AT24C01A/02/04/08/16


Part Number AT24C16
Description 2-Wire Serial EEPROM
Maker ATMEL Corporation
Total Page 21 Pages
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