X24026 Datasheet, PDF (1/15 Pages) Xicor Inc. – Serial E2PROM

ISO 7816 Compatible
2K
X24026
256 x 8 Bit
Serial E2PROM
FEATURES
• 2.7V to 5.5V Power Supply
• Low Power CMOS
—Active Current Less Than 1mA
—Standby Current Less Than 50µA
• Internally Organized 256 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
—ESD Protection > 2KV
DESCRIPTION
The X24026 is a CMOS 2048 bit serial E²PROM, inter-
nally organized 256 x 8. The X24026 features a serial
interface and software protocol allowing operation on a
simple two wire bus.
Xicor E²PROMs are designed and tested for applications
requiring extended endurance. Inherent data retention is
greater than 100 years. Available in DICE form with ISO
7816 compatible pinout.
FUNCTIONAL DIAGRAM
VCC
VSS
SDA
SCL
START
STOP
LOGIC
SLAVE ADDRESS
REGISTER
+COMPARATOR
START CYCLE
CONTROL
LOGIC
LOAD
INC
WORD
ADDRESS
COUNTER
XDEC
H.V. GENERATION
TIMING
& CONTROL
E² PROM
64 X 32
R/W
PIN
DOUT
ACK
YDEC
8
CK _{DATA REGISTER DOUT}
7020 FRM 01
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
7020-1.2 2/24/97 T1/C0/D2 SH
1
Characteristics subject to change without notice