Features
• Low-voltage and Standard-voltage Operation
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– 2.7 (VCC = 2.7V 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)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
100 kHz (1.8V) and 400 kHz (2.7V, 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 Allowed
Self-timed Write Cycle (5 ms max)
High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Automotive Grade and Lead-free/Halogen-free Devices Available
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23,
8-lead TSSOP and 8-ball dBGA2 Packages
Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
Two-wire
Serial EEPROM
1K (128 x 8)
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
Description
16K (2048 x 8)
The AT24C01A/02/04/08A/16A provides 1024/2048/4096/8192/16384 bits of serial
electrically 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/02/04/08A/16A is available in space-saving 8-lead PDIP,
8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23 (AT24C01A/AT24C02/AT24C04), 8lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to
5.5V) versions.
8-lead TSSOP
Table 1. Pin Configuration
Pin Name
Function
A0 - A2
Address Inputs
SDA
Serial Data
SCL
Write Protect
NC
No Connect
GND
Ground
8
7
6
5
1
2
3
4
VCC
WP
SCL
SDA
A0
A1
A2
GND
1
2
3
4
VCC
WP
SCL
SDA
8
7
6
5
Serial Clock Input
WP
A0
A1
A2
GND
8-lead SOIC
AT24C01A
AT24C02
AT24C04
AT24C08A
AT24C16A
VCC
Power Supply
8-ball dBGA2
VCC
WP
SCL
SDA
8
1
7
2
6
3
5
4
A0
A1
A2
GND
8-lead MAP
VCC
WP
SCL
SDA
Bottom View
1
2
3
4
8
7
6
5
1
2
3
4
A0
A1
A2
GND
Bottom View
8-lead PDIP
A0
A1
A2
GND
8
7
6
5
5-lead SOT23
VCC
WP
SCL
SDA
SCL
1
GND
SDA
3
5
WP
4
VCC
2
0180V–SEEPR–8/05
1