CAT24WC32 CATALYST [Catalyst Semiconductor], CAT24WC32 Datasheet

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CAT24WC32

Manufacturer Part Number
CAT24WC32
Description
32K/64K-Bit I2C Serial CMOS E2PROM
Manufacturer
CATALYST [Catalyst Semiconductor]
Datasheet

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© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
I
I
I
I
I
I
I
The CAT24WC32/64 is a 32K/64K-bit Serial CMOS
E
bits each. Catalyst’s advanced CMOS technology sub-
stantially reduces device power requirements. The
2
PROM internally organized as 4096/8192 words of 8
A0, A1, A2
SDA
SCL
WP
V
V
CC
SS
V SS
V SS
A 0
A 2
A 0
A 1
A 2
A 1
Device Address Inputs
Serial Data/Address
Serial Clock
Write Protect
+1.8V to +6V Power Supply
Ground
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
5
V CC
WP
SCL
SDA
V CC
WP
SCL
SDA
WP
EXTERNAL LOAD
V CC
V SS
SDA
SCL
1
A 0
A1
A2
2
C Bus Protocol.
I
I
I
I
CAT24WC32/64 features a 32-byte page write buffer.
The device operates via the I
is available in 8-pin DIP or 8-pin SOIC packages.
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
START/STOP
CONTROL
LOGIC
WORD ADDRESS
LOGIC
BUFFERS
D OUT
ACK
XDEC
2
C bus serial interface and
128/256
SHIFT REGISTERS
DATA IN STORAGE
TIMING CONTROL
HIGH VOLTAGE/
SENSE AMPS
DECODERS
Doc. No. 1039, Rev. F
COLUMN
128/256 X 256
E
2
24WC32/64 F02
PROM
256
TM

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CAT24WC32 Summary of contents

Page 1

... Catalyst Semiconductor is licensed by Philips Corporation to carry the I © 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT24WC32/64 features a 32-byte page write buffer. The device operates via the bus serial interface and is available in 8-pin DIP or 8-pin SOIC packages. EXTERNAL LOAD D OUT ...

Page 2

Temperature Under Bias ................. –55°C to +125°C Storage Temperature ....................... –65°C to +150°C Voltage on Any Pin with (1) Respect to Ground ........... –2. with Respect to Ground ............... –2.0V to +7.0V CC Package Power Dissipation Capability ...

Page 3

V = +1.8V to +6V, unless otherwise specified CC Output Load is 1 TTL Gate and 100pF F Clock Frequency SCL (1) T Noise Suppression Time I Constant at SCL, SDA Inputs t SCL Low to SDA Data Out AA ...

Page 4

... These pins are hardwired or left unconnected (for hard- ware compatibility with CAT24WC16). When hardwired eight CAT24WC32/64s may be addressed on a single bus system (refer to Device Addressing ). When the pins are left unconnected, the default values are zeros ...

Page 5

... If the device has been selected along with a write operation, it responds with an acknowledge after receiv- ing each 8-bit byte. When the CAT24WC32/64 begins a READ mode it transmits 8 bits of data, releases the SDA line, and monitors the line for an acknowledge. Once it receives this acknowledge, the CAT24WC32/64 will continue to transmit data ...

Page 6

... While the cycle is in progress, the device will not respond to any request from the Master device. The CAT24WC32/64 writes bytes of data single write cycle, using the Page Write operation. The page write operation is initiated in the same manner as ...

Page 7

... After the CAT24WC32/64 sends the initial 8- bit byte requested, the Master will respond with an acknowledge which tells the device it requires more data. The CAT24WC32/64 will continue to output an 8- bit byte for each acknowledge sent by the Master. The operation will terminate when the Master fails to respond with an acknowledge, thus sending the STOP condition ...

Page 8

BUS ACTIVITY: SLAVE R MASTER ADDRESS T SDA LINE S BUS ACTIVITY: SLAVE MASTER ADDRESS SDA LINE Doc. No. 1039, Rev. F BYTE ADDRESS A 15 – – ...

Page 9

CAT 24WC32 24WC32: 32K 24WC64: 64K P: 8-Pin PDIP J: 8-Pin SOIC (JEDEC) K: 8-Pin SOIC (EIAJ) L: 8-Pin PDIP (Lead-free, Halogen-free) W: 8-Pin SOIC (JEDEC, Lead-free, Halogen-free) X: 8-Pin SOIC (EIAJ, Lead-free, Halogen-free) Notes: (1) The device used in ...

Page 10

E 7/28/2004 F Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: 2 DPP ™ AE ™ Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that ...

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