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CAT25CXXX Datasheet(PDF) 2 Page - Catalyst Semiconductor

Part No. CAT25CXXX
Description  Supervisory Circuits with SPI Serial E2PROM, Precision Reset Controller and Watchdog Timer
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Maker  CATALYST [Catalyst Semiconductor]
Homepage  http://www.catalyst-semiconductor.com
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 2 page
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9-96
CAT25CXXX
Stock No. 21085-01 4/98
Advanced
PIN FUNCTIONS
Pin Name
Function
SO
Serial Data Output
SCK
Serial Clock
WP
Write Protect
VCC
+1.8V to +6.0V Power Supply
VSS
Ground
CS
Chip Select
SI
Serial Data Input
RESET/
RESET
Reset I/O
NC
No Connect
BLOCK DIAGRAM
RELIABILITY CHARACTERISTICS
Symbol
Parameter
Min.
Max.
Units
Reference Test Method
NEND(3)
Endurance
1,000,000
Cycles/Byte
MIL-STD-883, Test Method 1033
TDR(3)
Data Retention
100
Years
MIL-STD-883, Test Method 1008
VZAP(3)
ESD Susceptibility
2000
Volts
MIL-STD-883, Test Method 3015
ILTH(3)(4)
Latch-Up
100
mA
JEDEC Standard 17
Power-Up Timing(1)(2)
Symbol
Parameter
Max.
Units
tPUR
Power-up to Read Operation
1
ms
tPUW
Power-up to Write Operation
1
ms
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated.
(3) This parameter is tested initially and after a design or process change that affects the parameter.
(4) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to VCC +1V.
SENSE AMPS
SHIFT REGISTERS
SPI
CONTROL
LOGIC
WORD ADDRESS
BUFFERS
I/O
CONTROL
E2PROM
ARRAY
COLUMN
DECODERS
XDEC
HIGH VOLTAGE/
TIMING CONTROL
SO
25CXXX F02.1
STATUS
REGISTER
BLOCK
PROTECT
LOGIC
DATA IN
STORAGE
SI
CS
WP
RESET/
RESET
SCK
Reset Controller
Watchdog
High Precision
VCC Monitor




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