AT24C08B_14 Datasheet, PDF (1/28 Pages) ATMEL Corporation – 2-Wire Automotive Temperature Serial EEPROM

Features
• Low-voltage and Standard-voltage Operation
─ 1.8 (V_CC = 1.8V to 5.5V)
• Internally Organized 512 x 8 (4K), or 1024 x 8 (8K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 16-byte Page (4K, 8K) Write Modes
• Partial Page Writes Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
─ Endurance: 1 Million Write Cycles
─ Data Retention: 100 Years
• 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra-Thin Mini-MAP (MLP 2x3), 5-lead
SOT23, 8-lead TSSOP and 8-ball dBGA2 Packages
• Lead-free/Halogen-free
• Die Sales: Wafer Form and Tape and Reel
Description
The AT24C04B/08B provides 4096/8192 bits of serial electrically erasable and
programmable read-only memory (EEPROM) organized as 512/1024 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 AT24C04B/08B is
available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra-Thin Mini-
MAP (MLP 2x3), 5-lead SOT23, 8-lead TSSOP, and 8-ball dBGA2 packages and is
accessed via a Two-wire serial interface. In addition, the AT24C04B/08B is available in
1.8V (1.8V to 5.5V) version.
Figure 1. Pin Configurations
Pin Name
A0 – A2
Description
Address Inputs
SDA
Serial Data
SCL
Serial Clock Input
WP
Write Protect
NC
No Connect
GND
Ground
V_CC
Power Supply
Note: For use of 5-lead SOT23
4K: The software A2 and A1 bits in the
device address word must be set to zero
to properly communicate.
8K: The software A2 bit in the device
address word must be set to zero to
properly communicate.
8-lead Ultra-Thin
Mini-MAP (MLP 2x3)
VCC 8
WP 7
1 A0
2 A1
SCL 6 3 A2
SDA 5 4 GND
Bottom View
8-ball dBGA2
VCC 8
WP 7
1 A0
2 A1
SCL 6 3 A2
SDA 5 4 GND
Bottom View
8-lead TSSOP
A0 1
A1 2
8 VCC
7 WP
A2 3
6 SCL
GND 4
5 SDA
A0
A1
A2
GND
8-lead SOIC
1
8
2
7
3
6
4
5
VCC
WP
SCL
SDA
5-lead SOT23
SCL 1 5 WP
GND 2
SDA
3
4
VCC
8-lead PDIP
A0 1
8 VCC
A1 2 7 WP
A2 3 6 SCL
GND 4 5 SDA
Two-wire
Serial EEPROM
4K (512 x 8)
8K (1024 x 8)
AT24C04B
AT24C08B
Not Recommended
for New Design.
Replaced by
AT24C04C or
AT24C08C.
5226G–SEEPR–11/09