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X25097V-1.8 Datasheet

  • X25097V-1.8

  • 5MHz Low Power SPI Serial E 2 PROM with IDLock TM Memory

  • 15頁

  • XICOR   XICOR

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X25097
DESCRIPTION
1024 x 8 Bit
5MHz Low Power SPI Serial E
2
PROM with IDLock
TM
Memory
FEATURES
鈥?5MHz Clock Rate
鈥?IDLock鈩?Memory
鈥擨DLock First or Last Page, any 1/4 or Lower 1/2
of E
2
PROM Array
鈥?Low Power CMOS
鈥?lt;1
碌
A Standby Current
鈥?lt;3mA Active Current during Write
鈥?lt;400
碌
A Active Current during Read
鈥?1.8V to 3.6V, 2.7V-5.5V or 4.5V to 5.5V Operation
鈥?Built-in Inadvertent Write Protection
鈥擯ower-Up/Power-Down Protection Circuitry
鈥擶rite Enable Latch
鈥擶rite Protect Pin
鈥?SPI Modes (0,0 & 1,1)
鈥?1024 x 8 Bits
鈥?6 Byte Page Mode
鈥?Self-Timed Write Cycle
鈥?ms Write Cycle Time (Typical)
鈥?High Reliability
鈥擡ndurance: 100,000 Cycles/Byte
鈥擠ata Retention: 100 Years
鈥擡SD: 2000V on all pins
鈥?8-Lead TSSOP Package
鈥?8-Lead SOIC Package
鈥?8-Lead PDIP Package
The X25097 is a CMOS 8K-bit serial E
2
PROM, internally
organized as 1024 x 8. The X25097 features a Serial
Peripheral Interface (SPI) and software protocol
allowing operation on a simple four-wire bus. The bus
signals are a clock input (SCK) plus separate data in (SI)
and data out (SO) lines. Access to the device is
controlled through a chip select (CS) input, allowing any
number of devices to share the same bus.
IDLock is a programmble locking mechanism which
allows the user to lock system ID and parametric data in
different portions of the E
2
PROM memory space,
ranging from as little as one page to as much as 1/2 of
the total array. The X25097 also features a WP pin that
can be used for hardwire protection of the part, disabling
all write attempts, as well as a Write Enable Latch that
must be set before a write operation can be initiated.
The X25097 utilizes Xicor鈥檚 proprietary Direct Write
TM
cell, providing a minimum endurance of 100,000 cycles
per byte and a minimum data retention of 100 years.
FUNCTIONAL DIAGRAM
SI
SO
COMMAND
DECODE
AND
CONTROL
LOGIC
DATA REGISTER
Y DECODE LOGIC
16
SCK
X
DECODE
LOGIC
64
8
8K E PROM
ARRAY
(1024 x 8)
2
CS
WP
WRITE CONTROL LOGIC
HIGH VOLTAGE
CONTROL
7038 FRM F01
漏
Xicor, Inc. 1994, 1995, 1996 Patents Pending
7034-1.1 5/8/97 T1/C0/D0 SH
1
Characteristics subject to change without notice

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