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CAT25C021P-25TE13 View Datasheet(PDF) - Catalyst Semiconductor => Onsemi

Part Name
Description
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CAT25C021P-25TE13 Datasheet PDF : 12 Pages
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CAT25CXXX
Advanced
DESIGN CONSIDERATIONS
The CAT25CXXX powers up in a write disable state and
in a low power standby mode. A WREN instruction must
be issued to perform any writes to the device after power
up. Also,on power up CS should be brought low to enter
a ready state and receive an instruction. After a suc-
cessful byte/page write or status register write the
CAT25CXXX goes into a write disable mode. CS must
be set high after the proper number of clock cycles to
start an internal write cycle. Access to the array during
an internal write cycle is ignored and programming is
continued. On power up,SO is in a high impedance. If
ORDERING INFORMATION
an invalid op code is received, no data will be shifted into
the CAT25CXXX, and the serial output pin (SO) will
remain in a high impedance state until the falling edge
of CS is detected again.
The VCC sense provides write protection when VCC falls
below the reset threshold value (VTH). The VCC lock out
inhibits writes to the serial EEPROM whenever VCC falls
below (power down) VTH or until VCC reaches the reset
threshold (power up) VTH.
Prefix Device #
Suffix
CAT
25C16
1
S
I
-30 TE13
Optional
Company ID
Product
Number
25C32: 32K
25C16:16K
RESET
1. RESET
2. RESET
Temperature Range
Blank = Commercial (0˚C to +70˚C)
I = Industrial (-40˚C to +85˚C)
A = Automotive (-40˚ to +105˚C)*
Tape & Reel
TE13: 2000/Reel
25C08: 8K
25C04: 4K
25C02: 2K
Package
P = PDIP
S = 8-pin SOIC
S16 = 16-pin SOIC
U14 = 14-pin TSSOP
Reset Threshold
Voltage
45: 4.5-4.75V
42: 4.25-4.5V
30: 3.0-3.15V
28: 2.85-3.0V
25: 2.55-2.7V
* -40˚C to +125˚C is available upon request
17: 1.7-1.8V
Notes:
(1) The device used in the above example is a 25C161SI-30TE13 (RESET, SOIC, Industrial Temperature, 3.0-3.15 Reset Threshold
Voltage, Tape & Reel)
Stock No. 21085-01 4/98
9-106
 

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