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CAT25320 Datasheet(Hoja de datos) 1 Page - Catalyst Semiconductor

No. de Pieza. CAT25320
Descripción  32-Kb SPI Serial CMOS EEPROM
Descarga  16 Pages
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Fabricante  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
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CAT25320
© 2007 Catalyst Semiconductor, Inc.
1
Doc. No. 1111 Rev. E
Characteristics subject to change without notice
32-Kb SPI Serial CMOS EEPROM
FEATURES
10 MHz SPI compatible
1.8V to 5.5V supply voltage range
SPI modes (0,0) & (1,1)
32-byte page write buffer
Self-timed write cycle
Hardware and software protection
Block write protection
– Protect 1/4, 1/2 or entire EEPROM array
Low power CMOS technology
1,000,000 program/erase cycles
100 year data retention
Industrial temperature range
RoHS-compliant 8 lead PDIP, SOIC, TSSOP and
8-pad TDFN packages
PIN CONFIGURATION
PDIP (L)
SOIC (V)
TSSOP (Y)
TDFN (VP2)
CS
¯¯
1
8 VCC
SO
2
7 HOLD
¯¯¯¯¯
WP
¯¯¯
3
6 SCK
VSS 4
5 SI
PIN FUNCTION
Pin Name
Function
CS
¯¯
Chip Select
SO
Serial Data Output
WP
¯¯¯
Write Protect
VSS
Ground
SI
Serial Data Input
SCK
Serial Clock
HOLD
¯¯¯¯¯
Hold Transmission Input
VCC
Power Supply
DESCRIPTION
The CAT25320 is a 32-Kb Serial CMOS EEPROM
device internally organized as 4096x8 bits. This
features a 32-byte page write buffer and supports the
Serial Peripheral Interface (SPI) protocol. The device
is enabled through a Chip Select (CS
¯¯ ) input. In
addition, the required bus signals are clock input
(SCK), data input (SI) and data output (SO) lines. The
HOLD
¯¯¯¯¯ input may be used to pause any serial
communication with the CAT25320 device. The
device features software and hardware write protec–
tion, including partial as well as full array protection.
FUNCTIONAL SYMBOL
For Ordering Information details, see page 15.
CS
WP
HOLD
SI
SO
CAT25320
VCC
VSS
SCK




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