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X25325, X2532DP, X2532OSI

Table of contents:
Info of X25325
Info of X2532DP
Info of X2532OSI

X25325, X2532DP, X2532OSI Selling Leads, Datasheet

MFG:X Package Cooled:SOP8 D/C:06+

X25325, X2532DP, X2532OSI Datasheet download

Five Points

Part Number: X25325

MFG: X

Package Cooled: SOP8

D/C: 06+

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X25325 General Description

These devices combine three popular functions, Watchdog Timer, Supply Voltage Supervision, and Serial E2PROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

The Watchdog Timer provides an independent protection mechanism for microcontrollers. During a system failure, the device will respond with a RESET/RESET signal after a selectable time-out interval. The user selects the interval from three preset values. Once selected, the interval does not change, even after cycling the power.

The user's system is protected from low voltage conditions by the device's low Vcc detection circuitry. When Vcc falls below the minimum Vcc trip point, the system is reset. RESET/RESET is asserted until Vcc returns to proper operating levels and stabilizes.

The memory portion of the device is a CMOS Serial E²PROM array with Xicor's Block LockTM Protection. The array is internally organized as x 8. The device features a Serial Peripheral Interface (SPI) and software protocol allowing operation on a simple four-wire bus.

The device 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.

X25325 Maximum Ratings

Temperature under Bias ........................65°C to +135°C
Storage Temperature ...........................65°C to +150°C
Voltage on any Pin with Respect to V_SS.......... 1.0V to +7V
D.C. Output Current ................................................ .... 5mA
Lead Temperature (Soldering, 10 seconds).................300°C

X25325 Features

• Programmable Watchdog Timer
• Low Vcc Detection and Reset Assertion
-Reset Signal Valid to Vcc=1V
• Save Critical Data With Block LockTM Protection
-Block LockTM Protect 0, 1/4, 1/2 or all of
Serial E2PROM Memory Array
• In Circuit Programmable ROM Mode
• Long Battery Life With Low Power Consumption
-<50

mA Max Standby Current, Watchdog On
-<1

mA Max Standby Current, Watchdog Off
-<5mA Max Active Current during Write
-<400

mA Max Active Current during Read
• 1.8V to 3.6V, 2.7V to 5.5V and 4.5V to 5.5V Power
Supply Operation
• 2MHz Clock Rate
• Minimize Programming Time
-32 Byte Page Write Mode
-Self-Timed Write Cycle
-5ms Write Cycle Time (Typical)
• SPI Modes (0,0 & 1,1)
• Built-in Inadvertent Write Protection
-Power-Up/Power-Down Protection Circuitry
-Write Enable Latch
-Write Protect Pin
• High Reliability
• Available Packages
-14-Lead SOIC (X2564x)
-14-Lead TSSOP (X2532x, X2516x)
-8-Lead SOIC (X2532x, X2516x)

X25325 Connection Diagram

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