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X5083 Datasheet, PDF (1/21 Pages) Xicor Inc. – CPU Supervisor with 8Kbit SPI EEPROM | |||
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X5083
CPU Supervisor with 8Kbit SPI EEPROM
FEATURES
⢠Low VCC detection and reset assertion
âFour standard reset threshold voltages
4.63V, 4.38V, 2.93V, 2.63V
âRe-program low VCC reset threshold voltage
using special programming sequence.
âReset signal valid to VCC = 1V
⢠Selectable time out watchdog timer
⢠Long battery life with low power consumption
â<50µA max standby current, watchdog on
â<1µA max standby current, watchdog off
â<400µA max active current during read
⢠8Kbits of EEPROM
⢠Save critical data with Block Lock⢠memory
âBlock lock first or last page, any 1/4 or lower 1/2
of EEPROM array
⢠Built-in inadvertent write protection
âWrite enable latch
âWrite protect pin
⢠SPI Interface - 3.3MHz clock rate
⢠Minimize programming time
â16 byte page write mode
â5ms write cycle time (typical)
⢠SPI modes (0,0 & 1,1)
⢠Available packages
â8-lead TSSOP, 8-lead SOIC, 8-Lead PDIP
APPLICATIONS
⢠Communications Equipment
âRouters, Hubs, Switches
âSet Top Boxes
⢠Industrial Systems
âProcess Control
âIntelligent Instrumentation
⢠Computer Systems
âDesktop Computers
âNetwork Servers
⢠Battery Powered Equipment
Typical Application
2.7-5.0V
VCC
X5083
RESET
CS
SCK
SI
SO
WP
VSS
VCC
uC
10K
RESET
SPI
VSS
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%)
Suffix
-4.5A
4.38V (+/-2.5%)
-4.5
2.93V (+/-2.5%)
-2.7A
2.63V (+/-2.5%)
-2.7
See âOrdering Informationâ on page 21 for
more details
For Custom Settings, call Xicor.
REV 1.1.6 6/25/02
www.xicor.com
Characteristics subject to change without notice. 1 of 21
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