AT24C02A(2004) 데이터 시트보기 (PDF) - Atmel Corporation
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AT24C02A Datasheet PDF : 20 Pages
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Features
• Write Protect Pin for Hardware Data Protection
– Utilizes Different Array Protection Compared to the AT24C02/04/08/16
• Medium-voltage and Standard-voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 2.7V to 5.5V)
• Internally Organized 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
• 400 kHz (2.7V, 5V) Clock Rate
• 8-byte Page (2K), 16-byte Page (4K, 8K, 16K) Write Modes
• Partial Page Writes Allowed
• Self-timed Write Cycle (5 ms Max)
• High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
• Automotive Grade, Extended Temperature, and Lead-Free/Halogen-Free
Devices Available
• 8-lead PDIP, 8-lead JEDEC SOIC, and 8-lead TSSOP Packages
Description
The AT24C02A/04A/08A/16A provides 2048/4096/8192/16384 bits of serial electri-
cally erasable and programmable read-only memory (EEPROM) organized as
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 AT24C02A/04A/08A/16A is available in space-saving 8-lead PDIP, 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 2.7V (2.7V to 5.5V) version.
Table 1. Pin Configurations
Pin Name
Function
A0–A2
Address Inputs
SDA
Serial Data
SCL
Serial Clock Input
WP
Write Protect
NC
No-connect
8-lead PDIP
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
8-lead SOIC
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
Two-wire Serial
EEPROM
Extended
Temperature
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
16K (2048 x 8)
AT24C02A
AT24C04A
AT24C08A
AT24C16A
8-lead TSSOP
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
5083A–SEEPR–9/04
1
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