X25F087 Datasheet: SPI SerialFlash with Block Lock TM Protection





X25F087 SPI SerialFlash with Block Lock TM Protection Datasheet

Part Number X25F087
Description SPI SerialFlash with Block Lock TM Protection
Manufacture Xicor
Total Page 13 Pages
PDF Download Download X25F087 Datasheet PDF

Features: 8K X25F087 SPI SerialFlash with Block L ockTM Protection DESCRIPTION 1024 x 8 Bit FEATURES • 1MHz Clock Rate • S PI Modes (0,0 & 1,1) • 1024 x 8 Bits —16 Byte Small Sector Program Mode Low Power CMOS —<1µA Standby Curre nt —<3mA Active Current during Progra m —<400µA Active Current during Read • 1.8V to 3.6V or 5V “Univolt” R ead and Program Power Supply Versions Block Lock Protection —Block Lock Protect 0, any 1/4, 1st 1/2, First or L ast Sector of SerialFlash Array • Bui lt-in Inadvertent Program Protection Power-Up/Power-Down Protection Circuit ry —Program Enable Latch —Program P rotect Pin • Self-Timed Program Cycle —5ms Program Cycle Time (Typical) High Reliability —Endurance: 100,00 0 Cycles/Byte —Data Retention: 100 Ye ars —ESD: 2000V on all pins • 8-Lea d SOIC Package • 8-Lead TSSOP Package • 8-Pin Mini-DIP Package FUNCTIONAL DIAGRAM SI SO COMMAND DECODE AND CONTRO L LOGIC The X25F087 is a CMOS 8k-bit SerialFlash, internally organized as 1024 x 8. The X25F087 features a Serial Pe.

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8K
X25F087
1024 x 8 Bit
SPI SerialFlash with Block LockTM Protection
FEATURES
• 1MHz Clock Rate
• SPI Modes (0,0 & 1,1)
• 1024 x 8 Bits
—16 Byte Small Sector Program Mode
• Low Power CMOS
—<1µA Standby Current
—<3mA Active Current during Program
—<400µA Active Current during Read
• 1.8V to 3.6V or 5V “Univolt” Read and Program
Power Supply Versions
• Block Lock Protection
—Block Lock Protect 0, any 1/4, 1st 1/2, First or
Last Sector of SerialFlash Array
• Built-in Inadvertent Program Protection
—Power-Up/Power-Down Protection Circuitry
—Program Enable Latch
—Program Protect Pin
• Self-Timed Program Cycle
—5ms Program Cycle Time (Typical)
• High Reliability
—Endurance: 100,000 Cycles/Byte
—Data Retention: 100 Years
—ESD: 2000V on all pins
• 8-Lead SOIC Package
• 8-Lead TSSOP Package
• 8-Pin Mini-DIP Package
DESCRIPTION
The X25F087 is a CMOS 8k-bit SerialFlash, internally
organized as 1024 x 8. The X25F087 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.
There are eight options for programmable, nonvolatile,
Block Lock Protection available to the end user. These
options are implemented via special instructions
programmed to the part. The X25F087 also features a
PP pin that can be used for hardwire protection of the
part, disabling all programming attempts, as well as a
Program Enable Latch that must be set before a program
operation can be initiated.
The X25F087 utilizes Xicor’s proprietary Direct WriteTM
cell, providing a minimum endurance of 100,000 cycles
per sector and a minimum data retention of 100 years.
FUNCTIONAL DIAGRAM
SI
SO
SCK
COMMAND
DECODE
AND
CONTROL
LOGIC
CS
X
DECODE
LOGIC
DATA REGISTER
Y DECODE LOGIC
16 8
32
SERIALFLASH
ARRAY
(1024 x 8)
PP PROGRAM CONTROL LOGIC
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
7007-0.7 5/8/97 T1/C0/D0 SH
1
HIGH VOLTAGE
CONTROL
7007 FRM 01
Characteristics subject to change without notice

                    
                 






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