AT24C128B_14 Datasheet, PDF (1/23 Pages) ATMEL Corporation – Schmitt Trigger, Filtered Inputs for Noise Suppression

1. Features
• Low-voltage and Standard-voltage Operation
– 1.8 (V_CC = 1.8V to 5.5V)
• Internally Organized as 16,384 x 8
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5.5V, 2.5V), and 400 kHz (1.8V) Compatibility
• Write Protect Pin for Hardware and Software Data Protection
• 64-byte Page Write Mode (Partial Page Writes Allowed)
• Self-timed Write Cycle (5 ms Max)
• High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 40 Years
• Lead-free/Halogen-free
• 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini MAP, 8-lead Ultra Lead
Frame Land Grid Array (ULA), 8-lead TSSOP, and 8-ball dBGA2 Packages
• Die Sales: Wafer Form, Tape and Reel and Bumped Wafers
Two-wire Serial
EEPROM
128K (16,384 x 8)
AT24C128B
2. Description
The AT24C128B provides 131,072 bits of serial electrically erasable and programma-
ble read-only memory (EEPROM) organized as 16,384 words of 8 bits each. The
device’s cascadable feature allows up to eight devices to share a common two-wire
bus. The device is optimized for use in many industrial and commercial applications
where low-power and low-voltage operation are essential. The devices are available
in space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini
MAP, 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP, and 8-ball
dBGA2 packages. In addition, the entire family is available in a 1.8V (5.5V to 3.6V)
version.
8-lead PDIP
8-lead SOIC
Table 0-1. Pin Configurations
Pin Name
Function
A0 1
A1 2
A2 3
GND 4
8 VCC
A0 1
7 WP
A1 2
6 SCL
A2 3
5 SDA GND 4
8
VCC
7
WP
6
SCL
5
SDA
A0–A2
SDA
SCL
WP
GND
Address Inputs
Serial Data
Serial Clock Input
Write Protect
Ground
8-lead dBGA2
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
8-lead TSSOP
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
Bottom View
8-lead Ultra Lead Frame Land Grid Array
VCC 8
1 A0
WP 7
2 A1
SCL 6
3 A2
SDA 5
4 GND
8-lead Ultra Thin Mini MAP
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
Bottom View
Bottom View
Not Recommended
for New Design
Rev. 5296A–SEEPR–1/08