http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




Xicor
Xicor

X24012S-2.7 Datasheet Preview

X24012S-2.7 Datasheet

Serial E2PROM

No Preview Available !

X24012S-2.7 pdf
Preliminary Information
XP2in4071N2o Connect
1K
X24012
Serial E2PROM
128 x 8 Bit
FEATURES
2.7 to 5.5V Power Supply
Low Power CMOS
—Active Current Less Than 1 mA
—Standby Current Less Than 50 µA
Internally Organized 128 x 8
Self Timed Write Cycle
—Typical Write Cycle Time of 5 ms
2 Wire Serial Interface
—Bidirectional Data Transfer Protocol
Four Byte Page Write Operation
—Minimizes Total Write Time Per Byte
High Reliability
—Endurance: 100,000 Cycles
—Data Retention: 100 Years
DESCRIPTION
The X24012 is a CMOS 1024 bit serial E2PROM,
internally organized as one 128 x 8 bank. The X24012
features a serial interface and software protocol allow-
ing operation on a simple two wire bus. Three address
inputs allow up to eight devices to share a common two
wire bus.
Xicor E2PROMs are designed and tested for applica-
tions requiring extended endurance. Inherent data re-
tention is greater than 100 years. The X24012 is avail-
able in eight pin DIP and SOIC packages.
FUNCTIONAL DIAGRAM
(8) VCC
(4) VSS
(5) SDA
(6) SCL
(3) A2
(2) A1
(1) A0
START
STOP
LOGIC
SLAVE ADDRESS
REGISTER
+COMPARATOR
START CYCLE
CONTROL
LOGIC
LOAD
INC
WORD
ADDRESS
COUNTER
XDEC
H.V. GENERATION
TIMING
& CONTROL
E2PROM
32 X 32
R/W
DOUT
ACK
PIN
YDEC
8
CK DATA REGISTER DOUT
3847 FHD F01
© Xicor, 1991 Patents Pending
3847-1
1 Characteristics subject to change without notice




Xicor
Xicor

X24012S-2.7 Datasheet Preview

X24012S-2.7 Datasheet

Serial E2PROM

No Preview Available !

X24012S-2.7 pdf
X24012
PIN DESCRIPTIONS
Serial Clock (SCL)
The SCL input is used to clock all data into and out of the
device.
Serial Data (SDA)
SDA is a bidirectional pin used to transfer data into and
out of the device. It is an open drain output and may be
wire-ORed with any number of open drain or open
collector outputs.
An open drain output requires the use of a pull-up
resistor. For selecting typical values, refer to the Guide-
lines for Calculating Typical Values of Bus Pull-Up
Resistors graph.
Address (A0, A1, A2)
The address inputs are used to set the least significant
three bits of the seven bit slave address. These inputs
can be static or actively driven. If used statically they
must be tied to VSS or VCC as appropriate. If actively
driven, they must be driven to VSS or to VCC.
PIN CONFIGURATION
A0
A1
A2
VSS
DIP/SOIC
18
27
X24012
36
45
VCC
NC
SCL
SDA
PIN NAMES
Symbol
A0–A2
SDA
SCL
NC
VSS
VCC
3847 FHD F02
Description
Address Inputs
Serial Data
Serial Clock
No Connect
Ground
+5V
3847 PGM T01
2




Xicor
Xicor

X24012S-2.7 Datasheet Preview

X24012S-2.7 Datasheet

Serial E2PROM

No Preview Available !

X24012S-2.7 pdf
X24012
DEVICE OPERATION
The X24012 supports a bidirectional bus oriented proto-
col. The protocol defines any device that sends data
onto the bus as a transmitter, and the receiving device
as the receiver. The device controlling the transfer is a
master and the device being controlled is the slave. The
master will always initiate data transfers and provide the
clock for both transmit and receive operations. There-
fore, the X24012 will be considered a slave in all
applications.
Figure 1. Data Validity
Clock and Data Conventions
Data states on the SDA line can change only during SCL
LOW. SDA state changes during SCL HIGH are re-
served for indicating start and stop conditions. Refer to
Figures 1 and 2.
Start Condition
All commands are preceded by the start condition,
which is a HIGH to LOW transition of SDA when SCL is
HIGH. The X24012 continuously monitors the SDA and
SCL lines for the start condition and will not respond to
any command until this condition has been met.
SCL
SDA
Figure 2. Definition of Start and Stop
SCL
DATA STABLE DATA
CHANGE
SDA
START BIT
STOP BIT
3847 FHD F05
3847 FHD F06
3




Part Number X24012S-2.7
Description Serial E2PROM
Maker Xicor
Total Page 14 Pages
PDF Download
X24012S-2.7 pdf
Download PDF File
X24012S-2.7 pdf
View for Mobile






Related Datasheet

1 X24012S-2.7 Serial E2PROM Xicor
Xicor
X24012S-2.7 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