http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




Atmel Electronic Components Datasheet

AT24C256B Datasheet

Two-wire Serial EEPROM 256K

No Preview Available !

AT24C256B pdf
Features
Low-voltage and Standard-voltage Operation
– 1.8 (VCC = 1.8V to 5.5V)
Internally Organized as 32,768 x 8
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5.0V, 2.7V, 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 Devices Available
8-lead JEDEC PDIP, 8-lead JEDEC SOIC, EIAJ SOIC, 8-lead Ultra Thin Small Array
Package (SAP), 8-lead TSSOP, and 8-ball dBGA2 Packages
Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
Two-wire Serial
EEPROM
256K (32,768 x 8)
AT24C256B
Description
The AT24C256B provides 262,144 bits of serial electrically erasable and programma-
ble read-only memory (EEPROM) organized as 32,768 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 SAP, 8-
lead TSSOP, and 8-ball dBGA2 packages. In addition, the entire family is available in
a 1.8V (1.8V to 5.5V) version.
Not
Recommended
for New Design
Pin Configurations
8-lead PDIP
8-lead SOIC
Pin Name
A0–A2
SDA
SCL
WP
GND
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
Ground
A0
A1
A2
GND
1
2
3
4
8 VCC
A0
7 WP
A1
6 SCL
A2
5 SDA GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-lead dBGA2
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
8-lead TSSOP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
Bottom View
8-lead Ultra Thin SAP
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
Bottom View
Rev. 5279C–SEEPR–3/09


Atmel Electronic Components Datasheet

AT24C256B Datasheet

Two-wire Serial EEPROM 256K

No Preview Available !

AT24C256B pdf
1. Absolute Maximum Ratings*
Operating Temperature  55C to +125C
Storage Temperature 65C to +150C
Voltage on Any Pin
with Respect to Ground  1.0V to +7.0V
Maximum Operating Voltage .......................................... 6.25V
DC Output Current........................................................ 5.0 mA
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only;
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Figure 1-1.
Block Diagram
VCC
GND
WP
SCL
SDA
A2
A1
A0
START
STOP
LOGIC
LOAD
DEVICE
ADDRESS
COMPARATOR
SERIAL
CONTROL
EN
H.V. PUMP/TIMING
LOGIC
COMP
LOAD INC
DATA RECOVERY
R/W DATA WORD
ADDR/COUNTER
EEPROM
DIN
DOUT
Y DEC
SERIAL MUX
DOUT/ACK
LOGIC
2 AT24C256B
5279C–SEEPR–3/09


Part Number AT24C256B
Description Two-wire Serial EEPROM 256K
Maker ATMEL Corporation
Total Page 24 Pages
PDF Download
AT24C256B pdf
Download PDF File
AT24C256B pdf
View for Mobile



Buy Electronic Components




Related Datasheet

1 AT24C256 2-Wire Serial EEPROMs ATMEL Corporation
ATMEL Corporation
AT24C256 pdf
2 AT24C256B Two-wire Serial EEPROM 256K ATMEL Corporation
ATMEL Corporation
AT24C256B pdf
3 AT24C256C 2-Wire Serial EEPROM ATMEL
ATMEL
AT24C256C pdf






Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components