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CAT25C64 Datasheet(Hoja de datos) 1 Page - Catalyst Semiconductor

No. de Pieza. CAT25C64
Descripción  32K/64K-Bit SPI Serial CMOS E2PROM
Descarga  9 Pages
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Fabricante  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
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CAT25C32/64
32K/64K-Bit SPI Serial CMOS E2PROM
FEATURES
s 10 MHz SPI Compatible
s 1.8 to 6.0 Volt Operation
s Hardware and Software Protection
s Zero Standby Current
s Low Power CMOS Technology
s SPI Modes (0,0 &1,1)
s Commercial, Industrial and Automotive
Temperature Ranges
s 1,000,000 Program/Erase Cycles
s 100 Year Data Retention
s Self-Timed Write Cycle
s 8-Pin DIP/SOIC, 16-Pin SOIC, 14-Pin TSSOPand
20-Pin TSSOP
s 64-Byte Page Write Buffer
s Block Write Protection
– Protect 1/4, 1/2 or all of E2PROM Array
PIN CONFIGURATION
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
HOLD
Suspends Serial Input
NC
No Connect
BLOCK DIAGRAM
© 1999 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Advanced Information
DESCRIPTION
The CAT25C32/64 is a 32K/64K-Bit SPI Serial CMOS
E2PROM internally organized as 4Kx8/8Kx8 bits.
Catalyst’s advanced CMOS Technology substantially
reduces device power requirements. The CAT25C32/
64 features a 64-byte page write buffer. The device
operates via the SPI bus serial interface and is enabled
though a Chip Select (
CS). In addition to the Chip Select,
the clock input (SCK), data in (SI) and data out (SO) are
required to access the device. The
HOLD pin may be
used to suspend any serial communication without
resetting the serial sequence. The CAT25C32/64 is
designed with software and hardware write protection
features including Block write protection. The device is
available in 8-pin DIP, 8-pin SOIC, 14-pin TSSOP and
20-pin TSSOP packages.
Doc No. 25087-00 8/99 SPI-1
DIP Package (P)
TSSOP Package (U20)
SOIC Package (S)
SENSE AMPS
SHIFT REGISTERS
SPI
CONTROL
LOGIC
WORD ADDRESS
BUFFERS
I/O
CONTROL
E2PROM
ARRAY
COLUMN
DECODERS
XDEC
HIGH VOLTAGE/
TIMING CONTROL
SO
STATUS
REGISTER
BLOCK
PROTECT
LOGIC
DATA IN
STORAGE
SI
CS
WP
HOLD
SCK
SO
WP
CS
VCC
HOLD
SCK
SI
1
2
3
4
8
7
6
5
VSS
VSS
SO
WP
VCC
HOLD
SCK
SI
1
2
3
4
8
7
6
5
CS
NC
NC
CS
WP
HOLD
HOLD
VCC
NC
NC
NC
NC
NC
NC
SO
NC
NC
SO
VSS
SCK
SI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
TSSOP Package (U14)
CS
WP
HOLD
VCC
NC
NC
NC
NC
SO
NC
NC
VSS
SCK
SI
1
2
3
4
5
6
7
8
9
10
11
12
13
14




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