24C08 EEPROM Datasheet

24C08 Datasheet, PDF, Equivalent


Part Number

24C08

Description

Two-wire Automotive Serial EEPROM

Manufacture

ATMEL

Total Page 19 Pages
Datasheet
Download 24C08 Datasheet


24C08
Features
Medium-voltage and Standard-voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 2.7V 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)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bi-directional Data Transfer Protocol
100 kHz (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 (5 ms max)
High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
8-lead PDIP and 8-lead JEDEC SOIC 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
automotive applications where low-power and low-voltage operation are essential.
The AT24C01A/02/04/08/16 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,
the entire family is available in 5.0V (4.5V to 5.5V) and 2.7V (2.7V to 5.5V) versions.
Table 1. Pin Configuration
Pin Name
Function
A0 - A2
Address Inputs
SDA
Serial Data
SCL Serial Clock Input
WP Write Protect
NC No Connect
8-lead PDIP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-lead SOIC
Two-wire
Automotive
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(1)
AT24C16(2)
Note: 1. This device is not recom-
mended for new designs.
Please refer to AT24C08A.
2. This device is not recom-
mended for new designs.
Please refer to AT24C16A.
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
3256F–SEEPR–10/04
1

24C08
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
*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 connect.
2 AT24C01A/02/04/08/16
3256F–SEEPR–10/04


Features Features • Medium-voltage and Standard -voltage Operation – 5.0 (VCC = 4.5V to 5.5V) – 2.7 (VCC = 2.7V to 5.5V) Internally Organized 128 x 8 (1K), 2 56 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K ) or 2048 x 8 (16K) • Two-wire Serial Interface • Schmitt Trigger, Filtere d Inputs for Noise Suppression • Bi-d irectional Data Transfer Protocol • 1 00 kHz (2.7V) and 400 kHz (5V) Compatib ility • Write Protect Pin for Hardwar e Data Protection • 8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write M odes • Partial Page Writes are Allowe d • Self-timed Write Cycle (5 ms max) • High-reliability – Endurance: 1 Million Write Cycles – Data Retention : 100 Years • 8-lead PDIP and 8-lead JEDEC SOIC Packages Description The AT2 4C01A/02/04/08/16 provides 1024/2048/40 96/8192/16384 bits of serial electrical ly erasable and programmable read-only memory (EEPROM) organized as 128/256/51 2/1024/2048 words of 8 bits each. The d evice is optimized for use in many automotive applications where low-power and low-voltage oper.
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