CAT24WC6665WI-1.8T3C [CATALYST]

64K-bit I2C Serial EEPROM with Partial Array Write Protection; 64K位I2C串行EEPROM部分阵列写保护
CAT24WC6665WI-1.8T3C
型号: CAT24WC6665WI-1.8T3C
厂家: CATALYST SEMICONDUCTOR    CATALYST SEMICONDUCTOR
描述:

64K-bit I2C Serial EEPROM with Partial Array Write Protection
64K位I2C串行EEPROM部分阵列写保护

可编程只读存储器 电动程控只读存储器 电可擦编程只读存储器
文件: 总13页 (文件大小:155K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
CAT24WC66  
64K-bit I2C Serial EEPROM with Partial Array Write Protection  
FEATURES  
„ 400kHz I2C Bus  
DESCRIPTION  
The CAT24WC66 is a 64K-bit Serial CMOS EEPROM  
internally organized as 8192 words of 8 bits each.  
Catalyst’s advanced CMOS technology substantially  
reduces device power requirements. The CAT24WC66  
features a 32-byte page write buffer. The device  
operates via the I2C bus serial interface and is  
available in 8-pin DIP or 8-pin SOIC packages.  
„ 1.8V to 5.5V supply voltage range  
„ Cascadable for up to eight devices  
„ 32-byte page write buffer  
„ Self-timed write cycle with auto-clear  
„ Schmitt trigger inputs for noise protection  
„ Write protection  
Top 1/4 array protected when WP at VIH  
„ 1,000,000 program/erase cycles  
„ 100 year data retention  
For Ordering Information details, see page 12.  
„ Industrial and automotive temperature ranges  
„ RoHS-compliant packages  
PIN CONFIGURATION  
FUNCTIONAL SYMBOL  
V
CC  
DIP Package (L)  
SOIC Package (W, X)  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
A
V
A
A
A
V
CC  
WP  
0
CC  
0
1
2
A
WP  
1
SCL  
A
SCL  
SDA  
SCL  
SDA  
2
V
V
SS  
SS  
A , A , A  
CAT24CW66  
SDA  
2
1
0
WP  
PIN FUNCTION  
Pin Name Function  
A0, A1, A2 Device Address Inputs  
V
SS  
SDA  
SCL  
WP  
VCC  
VSS  
Serial Data/Address  
Serial Clock  
Write Protect  
Power Supply  
Ground  
* Catalyst Semiconductor is licensed by Philips Corporation to carry  
2
the I C Bus Protocol.  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
1
Doc. No. 1037 Rev. J  
CAT24WC66  
ABSOLUTE MAXIMUM RATINGS(1)  
Parameters  
Ratings  
–55 to +125  
–65 to +150  
–2.0 to VCC + 2.0  
–2.0 to 7.0  
1.0  
Units  
ºC  
ºC  
V
Temperature Under Bias  
Storage Temperature  
Voltage on any Pin with Respect to Ground(2)  
VCC with Respect to Ground  
V
Package Power Dissipation Capability (TA = 25°C)  
Lead Soldering Temperature (10 secs)  
Output Short Circuit Current(3)  
W
300  
ºC  
mA  
100  
REABILITY CHARACTERISTICS  
Symbol  
NEND(4)  
TDR(4)  
VZAP(4)  
ILTH(4)(5)  
Parameter  
Reference Test Method  
MIL-STD-883, Test Method 1033  
MIL-STD-883, Test Method 1008  
MIL-STD-883, Test Method 3015  
JEDEC Standard 17  
Min  
Max  
Units  
Endurance  
1,000,000  
100  
Cycles/Byte  
Years  
Data Retention  
ESD Susceptibility  
Latch-up  
2000  
Volts  
100  
mA  
D.C. OPERATING CHARACTERISTICS  
CC = 1.8V to 5.5V, unless otherwise specified.  
V
Symbol  
Parameter  
Test Conditions  
fSCL = 100kHz  
Min  
Typ  
Max  
Units  
mA  
µA  
ICC  
Power Supply Current  
Standby Current (VCC = 5V)  
Input Leakage Current  
Output Leakage Current  
Input Low Voltage  
3
1
(6)  
ISB  
VIN = GND or VCC  
VIN = GND to VCC  
VOUT = GND to VCC  
ILI  
ILO  
10  
10  
µA  
µA  
VIL  
-1  
VCC x 0.3  
VCC + 0.5  
0.4  
V
V
V
V
VIH  
Input High Voltage  
VCC x 0.7  
VOL1  
VOL2  
Output Low Voltage (VCC = +3.0V)  
Output Low Voltage(VCC = +1.8V)  
IOL = 3.0 mA  
IOL = 1.5 mA  
0.5  
CAPACITANCE  
TA = 25ºC, f = 1.0MHz, VCC = 5V  
Symbol  
Parameter  
Conditions  
Min  
Typ  
Max  
8
Units  
pF  
(4)  
CI/O  
Input/Output Capacitance (SDA)  
Input Capacitance (A0, A1, A2, SCL, WP)  
VI/O = 0V  
VIN = 0V  
(4)  
CIN  
6
pF  
Notes:  
(1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings  
only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this  
specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.  
(2) The minimum DC input voltage is –0.5V. During transitions, inputs may undershoot to –2.0V for periods of less than 20 ns. Maximum DC  
voltage on output pins is VCC +0.5V, which may overshoot to VCC + 2.0V for periods of less than 20ns.  
(3) Output shorted for no more than one second. No more than one output shorted at a time.  
(4) This parameter is tested initially and after a design or process change that affects the parameter.  
(5) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to VCC +1V.  
(6) Maximum standby current (ISB) = 10µA for the Automotive and Extended Automotive temperature range.  
Doc. No. 1037 Rev. J  
2
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
CAT24WC66  
AC CHARACTERISTICS  
VCC = 1.8V to 5.5V, unless otherwise specified. Output Load is 1TTL Gate and 100pF.  
Memory Read & Write Cycle Limits  
1.8V - 2.5V  
Max  
4.5V - 5.5V  
Units  
Symbol Parameter  
Min  
Min  
Max  
FSCL  
TI(1)  
Clock Frequency  
100  
200  
3.5  
400  
200  
1
kHz  
ns  
Noise Suppression Time Constant at  
SCL, SDA Inputs  
tAA  
SCL Low to SDA Data Out and ACK Out  
µs  
Time the Bus Must be Free Before a  
New Transmission Can Start  
(1)  
tBUF  
4.7  
1.2  
µs  
tHD:STA  
tLOW  
Start Condition Hold Time  
Clock Low Period  
4
4.7  
4
0.6  
1.2  
0.6  
µs  
µs  
µs  
tHIGH  
Clock High Period  
Start Condition Setup Time  
(for a Repeated Start Condition)  
tSU:STA  
4.7  
0.6  
µs  
tHD:DAT  
tSU:DAT  
Data In Hold Time  
0
0
ns  
ns  
µs  
ns  
µs  
ns  
Data In Setup Time  
50  
50  
(1)  
tR  
SDA and SCL Rise Time  
SDA and SCL Fall Time  
Stop Condition Setup Time  
Data Out Hold Time  
1
0.3  
(1)  
tF  
300  
300  
tSU:STO  
tDH  
4
0.6  
100  
100  
Power-Up Timing (1) (2)  
Symbol  
tPUR  
Parameter  
Min  
Typ  
Max  
1
Units  
ms  
Power-Up to Read Operation  
Power-Up to Write Operation  
tPUW  
1
ms  
Notes:  
(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.  
Write Cycle Limits  
Symbol  
Parameter  
Min  
Typ  
Max  
Units  
tWR  
Write Cycle Time  
10  
ms  
The write cycle time is the time from a valid stop  
condition of a write sequence to the end of the internal  
program/erase cycle. During the write cycle, the bus  
interface circuits are disabled, SDA is allowed to  
remain high, and the device does not respond to its  
slave address.  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
3
Doc. No. 1037 Rev. J  
CAT24WC66  
pin is an open drain output and can be wire-ORed  
with other open drain or open collector outputs.  
FUNCTIONAL DESCRIPTION  
The CAT24WC66 supports the I2C Bus data transmission  
protocol. This Inter-Integrated Circuit Bus protocol defines  
any device that sends data to the bus to be a transmitter  
and any device receiving data to be a receiver. The  
transfer is controlled by the Master device which  
generates the serial clock and all START and STOP  
conditions for bus access. The CAT24WC66 operates as  
a Slave device. Both the Master device and Slave device  
can operate as either transmitter or receiver, but the  
Master device controls which mode is activated.  
A0, A1, A2: Device Address Inputs  
These pins are hardwired or left unconnected (for  
hardware compatibility with CAT24WC16). When  
hardwired, up to eight CAT24WC66 devices may be  
addressed on a single bus system (refer to Device  
Addressing). When the pins are left unconnected, the  
default values are zeros.  
WP: Write Protect  
This input, when tied to GND, allows write operations  
to the entire memory. When this pin is tied to VCC, the  
top 1/4 array of memory is write protected. When left  
floating, memory is unprotected.  
PIN DESCRIPTION  
SCL: Serial Clock  
The serial clock input clocks all data transferred into  
or out of the device.  
SDA: Serial Data/Address  
The bidirectional serial data/address pin is used to  
transfer all data into and out of the device. The SDA  
Figure 1. Bus Timming  
t
t
t
F
HIGH  
R
t
t
LOW  
LOW  
SCL  
t
t
HD:DAT  
SU:STA  
t
t
t
t
HD:STA  
SU:DAT  
SU:STO  
SDA IN  
BUF  
t
t
DH  
AA  
SDA OUT  
Figure 2. Write Cycle Timing  
SCL  
SDA  
8TH BIT  
BYTE n  
ACK  
t
WR  
STOP  
CONDITION  
START  
CONDITION  
ADDRESS  
Figure 3. Start/Stop Timing  
SDA  
SCL  
START BIT  
STOP BIT  
Doc. No. 1037 Rev. J  
4
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
CAT24WC66  
I2C BUS PROTOCOL  
The features of the I2C bus protocol are defined as  
whether a Read or Write operation is to be performed.  
When this bit is set to 1, a Read operation is selected,  
and when set to 0, a Write operation is selected.  
follows:  
After the Master sends a START condition and the  
slave address byte, the CAT24WC66 monitors the  
bus and responds with an acknowledge (on the SDA  
line) when its address matches the transmitted slave  
address. The CAT24WC66 then performs a Read or  
(1) Data transfer may be initiated only when the bus  
is not busy.  
(2) During a data transfer, the data line must remain  
stable whenever the clock line is high. Any  
changes in the data line while the clock line is  
high will be interpreted as a START or STOP  
condition.  
¯¯  
Write operation depending on the state of the R/W bit.  
Acknowledge  
After a successful data transfer, each receiving device  
is required to generate an acknowledge. The  
Acknowledging device pulls down the SDA line during  
the ninth clock cycle, signaling that it received the 8  
bits of data.  
START Condition  
The START Condition precedes all commands to the  
device, and is defined as a HIGH to LOW transition of  
SDA when SCL is HIGH. The CAT24WC66 monitors  
the SDA and SCL lines and will not respond until this  
condition is met.  
The CAT24WC66 responds with an acknowledge  
after receiving a START condition and its slave  
address. If the device has been selected along with a  
write operation, it responds with an acknowledge after  
receiving each 8-bit byte.  
STOP Condition  
A LOW to HIGH transition of SDA when SCL is HIGH  
determines the STOP condition. All operations must  
end with a STOP condition.  
When the CAT24WC66 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 CAT24WC66 will continue to  
transmit data. If no acknowledge is sent by the  
Master, the device terminates data transmission and  
waits for a STOP condition. The master must then  
issue a stop condition to return the CAT24WC66 to  
the standby power mode and place the device in a  
known state.  
DEVICE ADDRESSING  
The bus Master begins a transmission by sending a  
START condition. The Master sends the address of  
the particular slave device it is requesting. The four  
most significant bits of the 8-bit slave address are  
fixed as 1010 (Fig. 5). The next three bits (A2, A1,  
A0) are the device address bits; up to eight 64K  
devices may to be connected to the same bus. These  
bits must compare to the hardwired input pins, A2, A1  
and A0. The last bit of the slave address specifies  
Figure 4. Acknowledge Timing  
SCL FROM  
MASTER  
1
8
9
DATA OUTPUT  
FROM TRANSMITTER  
DATA OUTPUT  
FROM RECEIVER  
START  
ACKNOWLEDGE  
Figure 5. Slave Address Bits  
1
0
1
0
A2  
A1  
A0  
R/W  
DEVICE ADDRESS  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
5
Doc. No. 1037 Rev. J  
CAT24WC66  
‘wraps around’, and previously transmitted data will be  
overwritten.  
WRITE OPERATIONS  
Byte Write  
When all 32 bytes are received, and the STOP condition  
has been sent by the Master, the internal programming  
cycle begins. At this point, all received data is written to  
the CAT24WC66 in a single write cycle.  
In the Byte Write mode, the Master device sends the  
START condition and the slave address information  
¯¯  
(with the R/W bit set to zero) to the Slave device.  
After the Slave generates an acknowledge, the Master  
sends two 8-bit address words that are to be written  
into the address pointers of the CAT24WC66. After  
receiving another acknowledge from the Slave, the  
Master device transmits the data to be written into the  
addressed memory location. The CAT24WC66  
acknowledges once more and the Master generates  
the STOP condition. At this time, the device begins  
an internal programming cycle to nonvolatile memory.  
While the cycle is in progress, the device will not  
respond to any request from the Master device.  
Acknowledge Polling  
Disabling of the inputs can be used to take advantage  
of the typical write cycle time. Once the stop condition  
is issued to indicate the end of the host's write  
operation, CAT24WC66 initiates the internal write  
cycle. ACK polling can be initiated immediately. This  
involves issuing the start condition followed by the  
slave address for a write operation. If CAT24WC66 is  
still busy with the write operation, no ACK will be  
returned. If CAT24WC66 has completed the write  
operation, an ACK will be returned and the host can  
then proceed with the next read or write operation.  
Page Write  
The CAT24WC66 writes up to 32 bytes of data, in a  
single write cycle, using the Page Write operation.  
The page write operation is initiated in the same  
manner as the byte write operation, however instead  
of terminating after the initial byte is transmitted, the  
Master is allowed to send up to 31 additional bytes.  
After each byte has been transmitted, CAT24WC66  
will respond with an acknowledge, and internally  
increment the five low order address bits by one. The  
high order bits remain unchanged.  
WRITE PROTECTION  
The Write Protection feature allows the user to protect  
against inadvertent programming of the memory  
array. If the WP pin is tied to VCC, the top 1/4 of the  
memory array (locations 1800H to 1FFF) is protected  
and becomes read only. The CAT24WC66 will accept  
both slave and byte addresses, but the memory  
location accessed is protected from programming by  
the device’s failure to send an acknowledge after the  
first byte of data is received.  
If the Master transmits more than 32 bytes before  
sending the STOP condition, the address counter  
Figure 6. Byte Write Timing  
S
T
A
R
T
S
T
O
P
BUS ACTIVITY:  
MASTER  
SLAVE  
ADDRESS  
BYTE ADDRESS  
A
–A  
A –A  
DATA  
15  
8
7
0
SDA LINE  
S
P
X X X  
A
C
K
A
C
K
A
C
K
A
C
K
Figure 7. Page Write Timing  
S
T
A
R
T
S
T
O
P
BUS ACTIVITY:  
MASTER  
SLAVE  
ADDRESS  
BYTE ADDRESS  
–A A –A  
0
A
15  
DATA  
DATA n  
DATA n+31  
8
7
SDA LINE  
S
P
X X X  
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
X= Don't care bit  
Doc. No. 1037 Rev. J  
6
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
CAT24WC66  
ledges, the Master device sends the START condition  
READ OPERATIONS  
¯¯  
and the slave address again, this time with the R/W  
The READ operation for the CAT24WC66 is initiated  
in the same manner as the write operation with one  
bit set to one. The CAT24WC66 then responds with  
its acknowledge and sends the 8-bit byte requested.  
The master device does not send an acknowledge but  
will generate a STOP condition.  
¯¯  
exception, that R/W bit is set to one. Three different  
READ operations are possible: Immediate/Current  
Address READ, Selective/Random READ and Se–  
quential READ.  
Sequential Read  
The Sequential READ operation can be initiated by  
either the Immediate Address READ or Selective  
READ operations. After the CAT24WC66 sends the  
initial 8-bit byte requested, the Master will respond  
with an acknowledge which tells the device it requires  
more data. The CAT24WC66 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.  
Immediate/Current Address Read  
The CAT24WC66’s address counter contains the  
address of the last byte accessed, incremented by  
one. In other words, if the last READ or WRITE  
access was to address N, the READ immediately  
following would access data from address N+1. If N=E  
(where E=8191), then the counter will ‘wrap around’ to  
address 0 and continue to clock out data. After the  
CAT24WC66 receives its slave address information  
¯¯  
(with the R/W bit set to one), it issues an  
acknowledge, then transmits the 8 bit byte requested.  
The master device does not send an acknowledge,  
but will generate a STOP condition.  
The data being transmitted from CAT24WC66 is  
outputted sequentially with data from address N  
followed by data from address N+1. The READ  
operation address counter increments all of the  
CAT24WC66 address bits so that the entire memory  
array can be read during one operation. If more than  
E (where E=8191) bytes are read out, the counter will  
‘wrap around’ and continue to clock out data bytes.  
Selective/Random Read  
Selective/Random READ operations allow the Master  
device to select at random any memory location for a  
READ operation. The Master device first performs a  
‘dummy’ write operation by sending the START  
condition, slave address and byte addresses of the  
location it wishes to read. After CAT24WC66 acknow-  
Figure 8. Immediate Address Read Timing  
S
T
A
R
T
S
T
O
P
BUS ACTIVITY:  
MASTER  
SLAVE  
ADDRESS  
DATA  
SDA LINE  
S
P
A
C
K
N
O
A
C
K
SCL  
SDA  
8
9
8TH BIT  
DATA OUT  
NO ACK  
STOP  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
7
Doc. No. 1037 Rev. J  
CAT24WC66  
Figure 9. Selective Read Timing  
S
T
A
R
T
S
T
A
R
T
S
T
O
P
BUS ACTIVITY:  
MASTER  
SLAVE  
ADDRESS  
BYTE ADDRESS  
–A A –A  
0
SLAVE  
ADDRESS  
A
DATA  
15  
8
7
SDA LINE  
S
S
P
X X X  
A
C
K
A
C
K
A
C
K
A
C
K
N
O
A
C
K
X= Don't care bit  
Figure 10. Sequential Read Timing  
S
T
O
P
BUS ACTIVITY:  
MASTER  
SLAVE  
ADDRESS  
DATA n  
DATA n+1  
DATA n+2  
DATA n+x  
SDA LINE  
P
A
C
K
A
C
K
A
C
K
A
C
K
N
O
A
C
K
Doc. No. 1037 Rev. J  
8
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
CAT24WC66  
PACKAGE OUTLINES  
8-LEAD 300 MIL WIDE PLASTIC DIP (L)  
E1  
E
D
A2  
A
L
A1  
e
eB  
b2  
b
SYMBOL  
MIN  
NOM  
MAX  
A
A1  
A2  
b
4.57  
0.38  
3.05  
0.36  
3.81  
0.56  
1.77  
10.16  
8.25  
7.11  
0.46  
b2  
D
1.14  
9.02  
7.62  
6.09  
E
7.87  
6.35  
E1  
e
2.54 BSC  
For current Tape and Reel information,  
download the PDF file from:  
http://www.catsemi.com/documents/tapeandreel.pdf.  
eB  
L
7.87  
2.92  
9.65  
3.81  
Notes:  
(1) All dimensions are in millimeters.  
(2) Complies with JEDEC Standard MS001 dimensions.  
(3) Dimensioning and tolerancing per ANSI Y14.5M-1982.  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
9
Doc. No. 1037 Rev. J  
CAT24WC66  
8-LEAD 150 MIL SOIC (W)  
E1  
E
h x 45  
D
C
A
Ө1  
e
A1  
L
b
SYMBOL  
MIN  
0.10  
1.35  
0.33  
0.19  
4.80  
5.80  
3.80  
NOM  
MAX  
0.25  
1.75  
0.51  
0.25  
5.00  
6.20  
4.00  
A1  
A
b
C
D
E
E1  
e
1.27 BSC  
h
0.25  
0.40  
0°  
0.50  
1.27  
8°  
L
Ө1  
For current Tape and Reel information, download the PDF file from:  
http://www.catsemi.com/documents/tapeandreel.pdf  
Notes:  
(1) All dimensions are in millimeters.  
(2) Complies with JEDEC specification MS-012 dimensions.  
Doc. No. 1037 Rev. J  
10  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
CAT24WC66  
8-LEAD 208 MIL SOIC (X)  
E
b
D
c
A
Ө1  
e
A1  
L
SYMBOL  
MIN  
NOM  
MAX  
A1  
A
0.05  
0.25  
2.03  
0.48  
0.25  
5.33  
8.26  
5.33  
b
0.36  
0.19  
5.13  
7.75  
5.13  
c
D
E
E1  
e
1.27 BSC  
L
0.51  
0°  
0.76  
8°  
Ө1  
For current Tape and Reel information, download the PDF file from:  
http://www.catsemi.com/documents/tapeandreel.pdf.  
Notes:  
1.Compliant with EIAJ specification EDR-7320  
2. All dimensions in millimeters  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
11  
Doc. No. 1037 Rev. J  
CAT24WC66  
EXAMPLE OF ORDERING INFORMATION  
Prefix  
Device # Suffix  
CAT 24WC66  
W
I
-1.8 –  
G
T3  
Rev C(4)  
Temperature Range  
Lead Finish  
Blank: Matte-Tin  
G: NiPdAu  
Die Revision  
24WC66: C  
Company ID  
I = Industrial (-40ºC to 85ºC)  
A = Automotive (-40ºC to 105ºC)  
E = Extended (-40ºC to 125ºC)  
Product Number  
24WC66  
Tape & Reel  
T: Tape & Reel  
2: 2000/Reel(5)  
3: 3000/Reel  
Package  
L: PDIP  
Operating Voltage  
Blank: VCC = 2.5V to 5.5V  
1.8: VCC = 1.8V to 5.5V  
W: SOIC, JEDEC  
X: SOIC, EIAJ(5)  
Notes:  
(1) All packages are RoHS-compliant (Lead-free, Halogen-free).  
(2) The standard lead finish is NiPdAu.  
(3) The device used in the above example is a CAT24W66WI-1.8–GT3 (SOIC, Industrial Temperature, 1.8 to 5.5V Operating Voltage,  
NiPdAu, Tape & Reel).  
(4) Product die revision letter is marked on top of the package as a suffix to the production date code (e.g. AYWWC). For additional  
information, please contact your Catalyst sales office.  
(5) For SOIC, EIAJ (X) package the standard lead finish is Matte-Tin. This package is available in 2000 pcs/reel, i.e. CAT24WC66XI-T2.  
(6) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office.  
Doc. No. 1037 Rev. J  
12  
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
 
REVISION HISTORY  
Date  
Rev. Reason  
3/4/2004  
D
Added Commercial temp range in all areas  
Update Pin Configuration  
04/03/04  
E
Update Ordering Information  
Eliminate data sheet designation  
7/22/2004  
8/3/2004  
F
G
H
Added Die Revision to Ordering Information  
Update Features  
Update DC Operating Characteristics table & notes  
03/10/2005  
Update Ordering Information  
Update Pin Configuration  
Update DC Operating Characteristics  
Update AC Characteristics  
Update Figure 5, 6 and 7  
Added Package Outlines  
Update Example of Ordering Information  
11/07/2006  
11/10/2006  
I
J
Update 8-Lead 300 Mil Wide Plastic DIP (L) Package Outline  
Copyrights, Trademarks and Patents  
Trademarks and registered trademarks of Catalyst Semiconductor include ech of the following:  
Beyond Memory™, DPP™, EZDim™, MiniPot™, and Quad-Mode™  
Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products.  
CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS  
PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE  
RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT  
OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.  
Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other  
applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal  
injury or death may occur.  
Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled  
"Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale.  
Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical  
semiconductor applications and may not be complete.  
Catalyst Semiconductor, Inc.  
Corporate Headquarters  
2975 Stender Way  
Santa Clara, CA 95054  
Phone: 408.542.1000  
Fax: 408.542.1200  
www.catsemi.com  
Document No: 1037  
Revision:  
J
Issue date:  
11/10/06  

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