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參數(shù)資料
| 型號(hào)： | X25020SI-2.7 |
| 英文描述： | SPI Serial E2PROM with Block LockTM Protection |
| 中文描述： | SPI串行E2PROM的保護(hù)與塊LockTM |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 61K |
| 代理商： | X25020SI-2.7 |
X25020
1
2K
X25020
256 x 8 Bit
Xicor, Inc. 1994, 1995, 1996 Patents Pending
3834-1.8 6/10/96 T3/C1/D0 NS
Characteristics subject to change without notice
Direct Write
and Block Lock
Protection is a trademark of Xicor, Inc.
SPI Serial E
2
PROM with Block Lock
TM
Protection
3834 FHD F01
FUNCTIONAL DIAGRAM
A
PPLICATION
N
OTES
A V A I L A B L E
DESCRIPTION
The X25020 is a CMOS 2048-bit serial E
2
PROM, inter-
nally organized as 256 x 8. The X25020 features a serial
interface and software protocol allowing operation on a
simple three-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.
The X25020 also features two additional inputs that
provide the end user with added flexibility. By asserting
the
HOLD
input, the X25020 will ignore transitions on its
inputs, thus allowing the host to service higher priority
interrupts. The
WP
input can be used as a hardwire input
to the X25020 disabling all write attempts, thus providing
a mechanism for limiting end user capability of altering
the memory.
The X25020 utilizes Xicor’s proprietary Direct Write
cell, providing a minimum endurance of 100,000 cycles
per byte and a minimum data retention of 100 years.
FEATURES
1MHz Clock Rate
SPI Modes (0,0 & 1,1)
256 X 8 Bits
—4 Byte Page Mode
Low Power CMOS
—10
μ
A Standby Current
—3mA Active Write Current
2.7V To 5.5V Power Supply
Block Lock Protection
—Protect 1/4, 1/2 or all of E
2
PROM Array
Built-in Inadvertent Write Protection
—Power-Up/Power-Down protection circuitry
—Write Latch
—Write Protect Pin
Self-Timed Write Cycle
—5ms Write Cycle Time (Typical)
High Reliability
—Endurance: 100,000 cycles per byte
—Data Retention: 100 Years
—ESD protection: 2000V on all pins
8-Lead PDlP Package
8-Lead SOIC Package
COMMAND
DECODE
AND
CONTROL
LOGIC
WRITE
CONTROL
AND
TIMING
LOGIC
WRITE
PROTECT
LOGIC
X DECODE
LOGIC
256 BYTE
ARRAY
16 X 32
Y DECODE
DATA REGISTER
16 X 32
32 X 32
SO
SI
SCK
CS
HOLD
WP
16
16
32
8
4
STATUS
REGISTER
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X25020SI-3 | SPI Serial E2PROM with Block LockTM Protection |
| X25040PM-3 | SPI Serial E2PROM with Block LockTM Protection |
| X25040PI | SPI Serial E2PROM with Block LockTM Protection |
| X25040PI-2.7 | SPI Serial E2PROM with Block LockTM Protection |
| X25040PI-3 | SPI Serial E2PROM with Block LockTM Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X25020SI-3 | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:SPI Serial E2PROM with Block LockTM Protection |
| X25020SIG-2.7 | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:SPI Serial E2PROM with Block LockTM Protection |
| X25020SIG-3 | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:SPI Serial E2PROM with Block LockTM Protection |
| X25020V-2.7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM |
| X25020V-3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM |
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