x5163s8zt2 Intersil Corporation, x5163s8zt2 Datasheet

x5163s8zt2

Manufacturer Part Number

x5163s8zt2

Description

Cpu Supervisor With 16kbit Spi Eeprom

Manufacturer

Intersil Corporation

Datasheet

1.X5163S8ZT2.pdf (21 pages)

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CPU Supervisor with 16Kbit SPI EEPROM

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 oscillator to stabilize

before the processor can execute code.

The Watchdog Timer provides an independent protection

mechanism for microcontrollers. When the microcontroller

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

system from low voltage conditions, resetting the system when

asserted until V

stabilizes. Five industry standard V

available, however, Intersil’s unique circuits allow the

threshold to be reprogrammed to meet custom requirements

or to fine-tune the threshold for applications requiring higher

precision.

Pinouts

falls below the minimum V

CS/WDI

returns to proper operating level and

detection circuitry protects the user’s

8 Ld SOIC/PDIP

X5163, X5165

trip point. RESET/RESET is

TRIP

Data Sheet

thresholds are

RESET/RESET

SCK

1-888-INTERSIL or 1-888-468-3774

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Selectable watchdog timer

• Low V

• Determine watchdog or low voltage reset with a volatile

• 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 operation

• Available packages: 14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP

• Pb-free plus anneal available (RoHS compliant)

CS/WDI

- Five standard reset threshold voltages

- Re-program low V

- Reset signal valid to V

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 Block

- In-circuit programmable ROM mode

- 32-byte page write mode

- Self-timed write cycle

- 5ms write cycle time (typical)

special programming sequence

Lock

All other trademarks mentioned are the property of their respective owners.

™

June 1, 2006

detection and reset assertion

protection

Intersil (and design) is a registered trademark of Intersil Americas Inc.

14 Ld TSSOP

X5163, X5165

reset threshold voltage using

= 1V

RESET/RESET

SCK

X5163, X5165

FN8128.3

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