X5165 XICOR [Xicor Inc.], X5165 Datasheet

X5165

Manufacturer Part Number

X5165

Description

CPU Supervisor with 16Kbit SPI EEPROM

Manufacturer

XICOR [Xicor Inc.]

Datasheets

1.X5165.pdf (21 pages)

2.X5165.pdf (21 pages)

3.X5165.pdf (21 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X5165-SKT

Manufacturer:

P&S

Quantity:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X5165P

Manufacturer:

Intersil

Quantity:

2 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X5165P-2.7

Manufacturer:

Intersil

Quantity:

2 150

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X5165PI-2.7

Manufacturer:

Intersil

Quantity:

3 350

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X5165PIZ

Manufacturer:

Intersil

Quantity:

Company:

BOSTOCK HK LIMITED

Part Number:

X5165PZ

Quantity:

2 729

Company:

Meier Automation Equipment Co., Limited

Part Number:

X5165S8IZ

Manufacturer:

INTERSIL

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

X5165S8IZ-2.7

Manufacturer:

XICOR

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

X5165S8IZT1

Manufacturer:

INTERSIL

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

X5165SIZT1

Manufacturer:

INTERSIL

Quantity:

20 000

Current page: 1 of 21
Download datasheet (123Kb)

Preliminary Information

Replaces X25163/X25165

FEATURES

• Selectable watchdog timer

• Low V

• Determine watchdog or low voltage reset with a

• Long battery life with low power consumption

• 16Kbits of EEPROM

• Built-in inadvertent write protection

• 2MHz SPI interface modes (0,0 & 1,1)

• Minimize EEPROM programming time

• 2.7V to 5.5V and 4.5V to 5.5V power supply

• Available packages

BLOCK DIAGRAM

REV 1.1 3/5/01

CS/WDI

—Five standard reset threshold voltages

—Re-program low V

—Reset signal valid to V

volatile ﬂag bit

—<50µA max standby current, watchdog on

—<1µA max standby current, watchdog off

—<400µA max active current during read

—Power-up/power-down protection circuitry

—Protect 0, 1/4, 1/2 or all of EEPROM array with

—In circuit programmable ROM mode

—32-byte page write mode

—Self-timed write cycle

—5ms write cycle time (typical)

operation

—14-lead TSSOP, 8-lead SOIC

using special programming sequence

Block Lock

SCK

detection and reset assertion

™

protection

Reset Logic

Command

Decode &

Control

CPU Supervisor with 16Kbit SPI EEPROM

reset threshold voltage

Threshold

Logic

Data

= 1V

Watchdog Transition

Detector

TRIP

X5163/X5165

www.xicor.com

Protect Logic

4K Bits

8K Bits

Status

DESCRIPTION

These devices combine four popular functions, Power-

on Reset Control, Watchdog Timer, Supply Voltage

Supervision, and Block Lock Protect Serial EEPROM

Memory in one package. This combination lowers

system cost, reduces board space requirements, and

increases reliability.

Applying power to the device activates the power on

reset circuit which holds RESET/RESET active for a

period of time. This allows the power supply and oscilla-

tor to stabilize before the processor can execute code.

The Watchdog Timer provides an independent protection

mechanism for microcontrollers. When the microcon-

troller fails to restart a timer within a selectable time out

interval, the device activates the RESET/RESET signal.

The user selects the interval from three preset values.

Once selected, the interval does not change, even

after cycling the power.

The device’s low V

user’s system from low voltage conditions, resetting the

system when V

RESET/RESET is asserted until V

operating level and stabilizes. Five industry standard

circuits allow the threshold to be reprogrammed to meet

custom requirements or to ﬁne-tune the threshold for

applications requiring higher precision.

TRIP

thresholds are available, however, Xicor’s unique

Timer Reset

Power on and

Low Voltage

Watchdog

Generation

Watchdog

Timebase

Reset &

Reset

falls below the minimum V

Characteristics subject to change without notice.

detection circuitry protects the

returns to proper

RESET/RESET

X5163 = RESET

X5165 = RESET

trip point.

1 of 21

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