TM
ICmic
2K x 8 Bit
This X25160 device has been acquired by
IC MICROSYSTEMS from Xicor, Inc.
IC MICROSYSTEMS
16K
X25160
SPI Serial E2PROM With Block LockTM Protection
FEATURES
DESCRIPTION
The X25160 is a CMOS 16384-bit serial E2PROM,
internally organized as 2K x 8. The X25160 features a
•2MHz Clock Rate
•SPI Modes (0,0 & 1,1)
•2K X 8 Bits
Serial Peripheral Interface (SPI) and software protocol
allowing operation on a simple three-wire bus. The bus
— 32 Byte Page Mode
•Low Power CMOS
signals are a clock input (SCK) plus separate data in (SI) and
data out (SO) lines. Access to the device is con-
— <1µA Standby Current
— <5mA Active Current
trolled through a chip select (CS) input, allowing any
number of devices to share the same bus.
•2.7V To 5.5V Power Supply
•Block Lock Protection
— Protect 1/4, 1/2 or all of E2PROM Array
•Built-in Inadvertent Write Protection
The X25160 also features two additional inputs that
provide the end user with added flexibility. By asserting
the HOLD input, the X25160 will ignore transitions on its
inputs, thus allowing the host to service higher priority
— Power-Up/Power-Down protection circuitry
— Write Enable Latch
interrupts. The WP input can be used as a hardwire input to
the X25160 disabling all write attempts to the status
— Write Protect Pin
•Self-Timed Write Cycle
register, thus providing a mechanism for limiting end user
capability of altering 0, 1/4, 1/2 or all of the memory.
— 5ms Write Cycle Time (Typical)
•High Reliability
— Endurance: 100,000 cycles
— Data Retention: 100 Years
The X25160 utilizes Xicor’s proprietary Direct Write™ cell,
providing a minimum endurance of 100,000 cycles
and a minimum data retention of 100 years.
— ESD protection: 2000V on all pins
•8-Lead PDlP Package
•8-Lead SOIC Package
•14-Lead TSSOP Package
FUNCTIONAL DIAGRAM
WRITE
PROTECT
LOGIC
STATUS
REGISTER
X DECODE
LOGIC
2K BYTE
ARRAY
16
16
16 X 256
16 X 256
SO
SI
COMMAND
DECODE
SCK
AND
CONTROL
LOGIC
CS
HOLD
32
32 X 256
WRITE
CONTROL
AND
TIMING
LOGIC
WP
32
8
Y DECODE
DATA REGISTER
3064 ILL F01
Direct Write™ and Block Lock™ Protection is a trademark of Xicor, Inc.
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
3064-3.9 6/11/96 T4/C1/D0 NS
Characteristics subject to change without notice
1
ICMIC [ IC MICROSYSTEMS ]
