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Xicor

X24164 Datasheet Preview

X24164 Datasheet

Serial E2PROM

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XPr2e4li1m6in4ary Information
16K
X24164
Serial E2PROM
2048 x 8 Bit
FEATURES
2.7V to 5.5V Power Supply
Low Power CMOS
—Active Read Current Less Than 1 mA
—Active Write Current Less Than 3 mA
—Standby Current Less Than 50 µA
Internally Organized 2048 x 8
2 Wire Serial Interface
—Bidirectional Data Transfer Protocol
Sixteen Byte Page Write Mode
—Minimizes Total Write Time Per Byte
Self Timed Write Cycle
—Typical Write Cycle Time of 5 ms
High Reliability
—Endurance: 100,000 Cycles
—Data Retention: 100 Years
Pin and Function Compatible with X24C16
8-Pin Plastic DIP and 8-Lead SOIC Packages
DESCRIPTION
The X24164 is a CMOS 16,384 bit serial E2PROM,
internally organized 2048 x 8. The X24164 features a
serial interface and software protocol allowing operation
on a simple two wire bus.
Three device select inputs (S0–S2) 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.
FUNCTIONAL DIAGRAM
(8) VCC
(4) VSS
(5) SDA
START
STOP
LOGIC
START CYCLE
H.V. GENERATION
TIMING
& CONTROL
(6) SCL
(3) S2
(2) S1
(1) S0
SLAVE ADDRESS
REGISTER
+COMPARATOR
CONTROL
LOGIC
LOAD
INC
WORD
ADDRESS
COUNTER
R/W
DOUT
ACK
PIN
XDEC
E2PROM
128 X 128
YDEC
8
CK DATA REGISTER DOUT
3846 FHD F01
© Xicor, 1991 Patents Pending
3846-1.2 7/30/96 T0/C1/D1 SH
1 Characteristics subject to change without notice




Xicor

X24164 Datasheet Preview

X24164 Datasheet

Serial E2PROM

No Preview Available !

X24164
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 Pull-Up
Resistor selection graph at the end of this data sheet.
Device Select (S0, S1, S2)
The device select inputs (S0, S1, S2) are used to set the
second, third and fourth bits of the 8 bit slave address.
This allows up to eight X24164’s to share a common
bus. 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 VCC. To
be compatible with the X24C16 these pins must all be
tied to VSS.
Pin Names
Symbol
S0–S2
SDA
SCL
TEST
VSS
VCC
Description
Device Select Inputs
Serial Data
Serial Clock
Hold at VSS
Ground
Supply Voltage
3846 PGM T01
PIN CONFIGURATION
S0
S1
S2
VSS
DIP/SOIC
18
27
X24164
36
45
VCC
TEST
SCL
SDA
3846 FHD F02
2


Part Number X24164
Description Serial E2PROM
Maker Xicor
Total Page 14 Pages
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