AT24C01B View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
AT24C01B
Atmel Corporation
'AT24C01B' PDF : 20 Pages View PDF
1. Features
• Medium-voltage and Standard-voltage Operation
– 2.5 (VCC = 2.5V to 5.5V)
• Automotive Temperature Range –40°C to 125°C
• Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K) or 1024 x 8 (8K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 400 kHz (2.5V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 8-byte Page (1K, 2K) or 16-byte Page (4K, 8K) 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 JEDEC SOIC and 8-lead TSSOP Packages
2. Description
The AT24C01B/02B/04B/08B provides 1024/2048/4096/8192 bits of serial electrically
erasable and programmable read-only memory (EEPROM) organized as
128/256/512/1024 words of 8 bits each. The device is optimized for use in many auto-
motive applications where low-power and low-voltage operation are essential. The
AT24C01B/02B/04B/08B is available in space-saving 8-lead JEDEC SOIC and 8-lead
TSSOP packages and is accessed via a two-wire serial interface. In addition, the
entire family is available in 2.5V (2.5V to 5.5V) versions.
Table 2-1.
Pin Name
A0 − A2
SDA
SCL
WP
Pin Configurations
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
8-lead SOIC
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
8-lead TSSOP
Two-wire
Automotive
Temperature
Serial EEPROM
1K (128 x 8)
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
AT24C01B
AT24C02B
AT24C04B
AT24C08B
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
8517C–SEEPR–01/09
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