CPU Supervisor. X5083 Datasheet

X5083 Datasheet PDF, Equivalent


Part Number

X5083

Description

CPU Supervisor

Manufacture

Intersil Corporation

Total Page 21 Pages
PDF Download
Download X5083 Datasheet


X5083 Datasheet
®
Data Sheet
June 15, 2006
X5083
FN8127.3
CPU Supervisor with 8Kbit SPI EEPROM
This device combines four popular functions, Power-on Reset
Control, Watchdog Timer, Supply Voltage Supervision, and
Block Lock 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 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 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 VCC detection circuitry protects the user’s
system from low voltage conditions, resetting the system
when VCC falls below the minimum VCC trip point. RESET is
asserted until VCC returns to the proper operating level and
stabilizes. Five industry standard VTRIP thresholds are
www.DataSheet4U.coamvailable, 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
8 LD TSSOP
RESET
VCC
CS/WDI
SO
18
2
3
X5083
7
6
45
SCK
SI
VSS
WP
8 LD SOIC, 8 LD PDIP
CS/WDI
SO
WP
VSS
18
27
3 X5083 6
45
VCC
RESET
SCK
SI
Features
• Low VCC detection and reset assertion
- Four standard reset threshold voltages
4.63V, 4.38V, 2.93V, 2.63V
- Re-program low VCC reset threshold voltage using
special programming sequence
- Reset signal valid to VCC = 1V
• Selectable time out watchdog timer
• Long battery life with low power consumption
- <50µA max standby current, watchdog on
- <1µA max standby current, watchdog off
- <400µA max active current during read
• 8Kbits of EEPROM
• Save critical data with Block Lockmemory
- Block lock first or last page, any 1/4 or lower 1/2 of
EEPROM array
• Built-in inadvertent write protection
- Write enable latch
- Write protect pin
• SPI Interface - 3.3MHz clock rate
• Minimize programming time
- 16 byte page write mode
- 5ms write cycle time (typical)
• SPI modes (0,0 & 1,1)
• Available packages
- 8 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP
• Pb-free plus anneal available (RoHS compliant)
Applications
• Communications Equipment
- Routers, Hubs, Switches
- Set Top Boxes
• Industrial Systems
- Process Control
- Intelligent Instrumentation
• Computer Systems
- Desktop Computers
- Network Servers
• Battery Powered Equipment
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

X5083 Datasheet
Typical Application
2.7-5.0V
VCC
X5083
RESET
CS
SCK
SI
SO
WP
VSS
VCC
uC
10K
RESET
SPI
VSS
X5083
Block Diagram
VCC
CS/WDI
SI
SO
SCK
WP
VTRIP
+
-
POR AND LOW
VOLTAGE RESET
GENERATION
RESET & WATCHDOG
TIMEBASE
WATCHDOG
TRANSITION
DETECTOR
WATCHDOG
TIMER
RESET
COMMAND
DECODE &
CONTROL
LOGIC
PROTECT LOGIC
STATUS
REGISTER
EEPROM
ARRAY
8KBITS
RESET (X5083)
X5083
STANDARD VTRIP LEVEL
4.63V (+/-2.5%)
4.38V (+/-2.5%)
2.93V (+/-2.5%)
2.63V (+/-2.5%)
SUFFIX
-4.5A
-4.5
-2.7A
-2.7
See “Ordering Information” on page 3 for
more details
For Custom Settings, call Intersil.
2 FN8127.3
June 15, 2006


Features Datasheet pdf ® X5083 Data Sheet June 15, 2006 FN812 7.3 CPU Supervisor with 8Kbit SPI EEPR OM This device combines four popular fu nctions, Power-on Reset Control, Watchd og Timer, Supply Voltage Supervision, a nd Block Lock Serial EEPROM Memory in o ne package. This combination lowers sys tem cost, reduces board space requireme nts, and increases reliability. Applyin g power to the device activates the pow er-on reset circuit which holds RESET a ctive for a period of time. This allows the power supply and oscillator to sta bilize before the processor can execute code. The Watchdog Timer provides an i ndependent protection mechanism for mic rocontrollers. When the microcontroller fails to restart a timer within a sele ctable time out interval, the device ac tivates the RESET signal. The user sele cts the interval from three preset valu es. Once selected, the interval does no t change, even after cycling the power. The device’s low VCC detection circu itry protects the user’s system from low voltage conditions, reset.
Keywords X5083, datasheet, pdf, Intersil Corporation, CPU, Supervisor, 5083, 083, 83, X508, X50, X5, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)