Catalyst CAT34C02VP2ITE13 2-kb i2c eeprom for ddr2 dimm serial presence detect Datasheet

CAT34C02
2-Kb I2C EEPROM for DDR2 DIMM Serial Presence Detect
FEATURES
DEVICE DESCRIPTION
■ Supports Standard and Fast I2C Protocol
The CAT34C02 is a 2-Kb Serial CMOS EEPROM,
internally organized as 16 pages of 16 bytes each, for
a total of 256 bytes of 8 bits each.
■ 1.7 V to 5.5 V Supply Voltage Range
■ 16-Byte Page Write Buffer
It features a 16-byte page write buffer and supports
both the Standard (100 kHz) as well as Fast (400 kHz)
I2C protocol.
■ Hardware Write Protection for entire memory
■ Software Write Protection for lower 128 Bytes
■ Schmitt Triggers and Noise Suppression Filters
Write operations can be inhibited by taking the WP pin
High (this protects the entire memory) or by setting an
internal Write Protect flag via Software command (this
protects the lower half of the memory).
on I2C Bus Inputs (SCL and SDA).
■ Low power CMOS technology
■ 1,000,000 program/erase cycles
In addition to Permanent Software Write Protection,
the CAT34C02 also features JEDEC compatible
Reversible Software Write Protection for DDR2 Serial
Presence Detect (SPD) applications operating over
the 1.7 V to 3.6 V supply voltage range.
■ 100 year data retention
“
”&“
8-pin TSSOP and TDFN packages
■ RoHS compliant
”
■ Industrial temperature range
The CAT34C02 is fully backwards compatible with
earlier DDR1 SPD applications operating over the
1.7 V to 5.5 V supply voltage range.
PIN CONFIGURATION
TSSOP (Y)
TDFN (VP2)
FUNCTIONAL SYMBOL
A0
1
8
VCC
A1
A2
2
7
WP
3
6
SCL
VSS
4
5
SDA
VCC
SCL
For the location of Pin 1, please consult the
corresponding package drawing.
A2, A1, A0
Device Address
SDA
Serial Data
SCL
Serial Clock
WP
Write Protect
VCC
Power Supply
VSS
Ground
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
SDA
WP
PIN FUNCTIONS
A0, A1, A2
CAT34C02
VSS
* Catalyst carries the I2C protocol under a license from the Philips Corporation.
1
Doc. No. 1095, Rev. C
CAT34C02
ABSOLUTE MAXIMUM RATINGS*
Storage Temperature
-65°C to +150°C
Voltage on Any Pin with Respect to Ground(1)
-0.5 V to +6.5 V
* 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.
RELIABILITY CHARACTERISTICS(2)
Symbol
Parameter
Min
Units
NEND(*)
Endurance
1,000,000
Program/ Erase Cycles
100
Years
TDR
Data Retention
(*) Page Mode, VCC = 5 V, 25°C
D.C. OPERATING CHARACTERISTICS
VCC = 1.7 V to 5.5 V, TA = -40°C to 85°C, unless otherwise specified.
Symbol
Parameter
Test Conditions
ICC
Supply Current
ISB
Min
Max
Units
Read or Write at 400 kHz
1
mA
Standby Current
All I/O Pins at GND or VCC
1
μA
IL
I/O Pin Leakage
Pin at GND or VCC
1
μA
VIL
Input Low Voltage
VCC x 0.3
V
VIH
Input High Voltage
VCC x 0.7 VCC + 0.5
V
VOL1
Output Low Voltage
VCC > 2.5 V, IOL = 3.0 mA
0.4
V
VOL2
Output Low Voltage
VCC > 1.7 V, IOL = 1.0 mA
0.2
V
VHV(1)
RSWP Set/Clear A0 High Voltage
1.7 V < VCC < 3.6 V
VCC + 4.8
10
V
Min
Max
Units
-0.5
PIN IMPEDANCE CHARACTERISTICS
TA = 25°C, f = 400 kHz, VCC = 5 V
Symbol
Parameter
Conditions
CIN(2)
SDA I/O Pin Capacitance
VIN = 0 V
8
pF
CIN(2)
Input Capacitance (other pins)
VIN = 0 V
6
pF
ZWPL
WP Input Low Impedance
VIN < 0.5 V
70
kΩ
ILWPH
WP Input High Leakage
VIN > VCC x 0.7
1
μA
5
Note:
(1) The DC input voltage on any pin should not be lower than -0.5 V or higher than VCC + 0.5 V. During transitions, the voltage on any pin may
undershoot to no less than -1.5 V or overshoot to no more than VCC + 1.5 V, for periods of less than 20 ns. The maximum DC voltage on
address pin A0 is +10.0 V at 25°C. A series resistor of ~ 1.5 kΩ should be used when driving pin A0 to VHV, or else, the current compliance
of the VHV driver should be limited to ~ 1 mA.
(2) These parameters are tested initially and after a design or process change that affects the parameter according to appropriate AEC-Q100
and JEDEC test methods.
Doc. No. 1095, Rev. C
2
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT34C02
A.C. CHARACTERISTICS
VCC = 1.7 V to 5.5 V, TA = -40°C to 85°C, unless otherwise specified.
1.7 V - 5.5 V
Symbol
Parameter
Min
Max
2.5 V - 5.5 V
Min
Max
Units
FSCL
Clock Frequency
100
400
kHz
TI(1)
Noise Suppression Time Constant at
SCL, SDA Inputs
100
100
ns
tAA(2)
SCL Low to SDA Data Out
3.5
0.9
μs
tBUF(1)
Time the Bus Must be Free Before a
New Transmission Can Start
tHD:STA
Start Condition Hold Time
4.7
1.3
μs
4
0.6
μs
tLOW
Clock Low Period
4.7
1.3
μs
tHIGH
Clock High Period
4
0.6
μs
4.7
0.6
μs
tSU:STA
Start Condition Setup Time
tHD:DAT
Data In Hold Time
0
0
ns
tSU:DAT
Data In Setup Time
250
100
ns
tR(1)
SDA and SCL Rise Time
1
0.3
μs
tF(1)
SDA and SCL Fall Time
300
300
ns
tSU:STO
Stop Condition Setup Time
4
0.6
μs
100
100
ns
tDH
Data Out Hold Time
tWR
Write Cycle Time
5
5
ms
Power-up to Ready Mode
1
1
ms
tPU(1), (3)
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) For timing measurements the SDA line capacitance is ~ 100 pF; the SCL input is driven with rise and fall times of < 50 ns; the SDA I/O
is pulled-up by a 3 mA current source; input driving signals swing from 20% to 80% of VCC. Output level reference levels are 30% and
respectively 70% of VCC.
(3) tPU is the delay required from the time VCC is stable until the device is ready to accept commands.
Power-On Reset (POR)
The CAT34C02 incorporates Power-On Reset (POR)
circuitry which protects the internal logic against
powering up in the wrong state.
The CAT34C02 will power up into Standby mode after
VCC exceeds the POR trigger level and will power
down into Reset mode when VCC drops below the POR
trigger level. This bi-directional POR feature protects
the device against ‘brown-out’ failure following a
temporary loss of power.
The POR circuitry triggers at the minimum VCC level
required for proper initialization of the internal state
machines. The POR trigger level automatically tracks the
internal CMOS device thresholds, and is naturally well
below the minimum recommended VCC supply voltage.
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc No. 1095, Rev. C
CAT34C02
PIN DESCRIPTION
START
SCL: The Serial Clock input pin accepts the Serial Clock
generated by the Master.
The START condition precedes all commands. It consists
of a HIGH to LOW transition on SDA while SCL is HIGH.
The START acts as a ‘wake-up’ call to all receivers. Absent
a START, a Slave will not respond to commands.
SDA: The Serial Data I/O pin receives input data and
transmits data stored in EEPROM. In transmit mode, this
pin is open drain. Data is acquired on the positive edge,
and is delivered on the negative edge of SCL.
STOP
The STOP condition completes all commands. It consists
of a LOW to HIGH transition on SDA while SCL is HIGH.
The STOP starts the internal Write cycle (when following a Write command) or sends the Slave into standby
mode (when following a Read command).
A0, A1 and A2: The Address pins accept the device address. These pins have on-chip pull-down resistors.
WP: The Write Protect input pin inhibits all write operations, when pulled HIGH. This pin has an on-chip
pull-down resistor.
Device Addressing
The Master initiates data transfer by creating a START
condition on the bus. The Master then broadcasts an
8-bit serial Slave address. The first 4 bits of the Slave
address are set to 1010, for normal Read/Write operations (Figure 2). The next 3 bits, A2, A1 and A0, select
one of 8 possible Slave devices. The last bit, R/W,
specifies whether a Read (1) or Write (0) operation is
to be performed.
FUNCTIONAL DESCRIPTION
The CAT34C02 supports the Inter-Integrated Circuit (I2C)
Bus data transmission protocol, which defines a device
that sends data to the bus as a transmitter and a device
receiving data as a receiver. Data flow is controlled by
a Master device, which generates the serial clock and
all START and STOP conditions. The CAT34C02 acts
as a Slave device. Master and Slave alternate as either
transmitter or receiver. Up to 8 devices may be connected
to the bus as determined by the device address inputs
A0, A1, and A2.
Acknowledge
After processing the Slave address, the Slave responds
with an acknowledge (ACK) by pulling down the SDA
line during the 9th clock cycle (Figure 3). The Slave will
also acknowledge the byte address and every data
byte presented in Write mode. In Read mode the Slave
shifts out a data byte, and then releases the SDA line
during the 9th clock cycle. If the Master acknowledges
the data, then the Slave continues transmitting. The
Master terminates the session by not acknowledging
the last data byte (NoACK) and by sending a STOP to
the Slave. Bus timing is illustrated in Figure 4.
I2C BUS PROTOCOL
The I2C bus consists of two ‘wires’, SCL and SDA. The
two wires are connected to the VCC supply via pull-up
resistors. Master and Slave devices connect to the 2wire bus via their respective SCL and SDA pins. The
transmitting device pulls down the SDA line to ‘transmit’
a ‘0’ and releases it to ‘transmit’ a ‘1’.
Data transfer may be initiated only when the bus is not
busy (see A.C. Characteristics).
During data transfer, the SDA line must remain stable
while the SCL line is HIGH. An SDA transition while
SCL is HIGH will be interpreted as a START or STOP
condition (Figure 1).
Doc. No. 1095, Rev. C
4
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT34C02
Figure 1. Start/Stop Timing
SDA
SCL
START BIT
STOP BIT
Figure 2. Slave Address Bits
1
0
1
A2
0
A1
A0
R/W
DEVICE ADDRESS
Figure 3. Acknowledge Timing
SCL FROM
MASTER
1
8
9
DATA OUTPUT
FROM TRANSMITTER
DATA OUTPUT
FROM RECEIVER
ACKNOWLEDGE
START
Figure 4. Bus Timing
tHIGH
tF
tLOW
tR
tLOW
SCL
tSU:STA
tHD:STA
tHD:DAT
tSU:DAT
tSU:STO
SDA IN
tAA
tDH
tBUF
SDA OUT
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc No. 1095, Rev. C
CAT34C02
WRITE OPERATIONS
Byte Write
In Byte Write mode the Master sends a START, followed
by Slave address, byte address and data to be written
(Figure 5). The Slave acknowledges all 3 bytes, and the
Master then follows up with a STOP, which in turn starts
the internal Write operation (Figure 6). During internal
Write, the Slave will not acknowledge any Read or Write
request from the Master.
Page Write
The CAT34C02 contains 256 bytes of data, arranged
in 16 pages of 16 bytes each. A page is selected by the
4 most significant bits of the address byte following the
Slave address, while the 4 least significant bits point to
the byte within the page. Up to 16 bytes can be written
in one Write cycle (Figure 7).
The internal byte address counter is automatically incremented after each data byte is loaded. If the Master
transmits more than 16 data bytes, then earlier bytes will
be overwritten by later bytes in a ‘wrap-around’ fashion
(within the selected page). The internal Write cycle starts
immediately following the STOP.
Acknowledge Polling
Acknowledge polling can be used to determine if the
CAT34C02 is busy writing or is ready to accept commands. Polling is implemented by interrogating the
device with a ‘Selective Read’ command (see READ
OPERATIONS).
The CAT34C02 will not acknowledge the Slave address,
as long as internal Write is in progress.
Hardware Write Protection
With the WP pin held HIGH, the entire memory, as well
as the SWP flags are protected against Write operations
(Figure 8). If the WP pin is left floating or is grounded, it
has no impact on the operation of the CAT34C02.
Doc. No. 1095, Rev. C
6
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT34C02
Figure 5. Byte Write Timing
S
T
A
R
T
BUS ACTIVITY:
MASTER
SDA LINE
BYTE
ADDRESS
SLAVE
ADDRESS
S
T
O
P
DATA
S
P
A
C
K
A
C
K
A
C
K
Figure 6. Write Cycle Timing
SCL
8th Bit
Byte n
SDA
ACK
tWR
STOP
CONDITION
START
CONDITION
ADDRESS
Figure 7. Page Write Timing
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
SLAVE
ADDRESS
BYTE
ADDRESS (n)
DATA n+1
DATA n
S
T
O
P
DATA n+P
S
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
NOTE: IN THIS EXAMPLE n = XXXX 0000(B); X = 1 or 0
Figure 8. Memory Array
FFH
Hardware Write Protectable
(by connecting WP pin to
Vcc)
7FH
Software Write Protectable
(by setting the write
protect flags)
00H
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
7
Doc No. 1095, Rev. C
CAT34C02
READ OPERATIONS
Immediate Address Read
In standby mode, the CAT34C02 internal address counter
points to the data byte immediately following the last byte
accessed by a previous operation. If that ‘previous’ byte
was the last byte in memory, then the address counter
will point to the 1st memory byte, etc.
When, following a START, the CAT34C02 is presented
with a Slave address containing a ‘1’ in the R/W bit
position (Figure 9), it will acknowledge (ACK) in the 9th
clock cycle, and will then transmit data being pointed
at by the internal address counter. The Master can stop
further transmission by issuing a NoACK, followed by a
STOP condition.
Selective Read
The Read operation can also be started at an address
different from the one stored in the internal address counter. The address counter can be initialized by performing
a ‘dummy’ Write operation (Figure 10). Here the START
is followed by the Slave address (with the R/W bit set
to ‘0’) and the desired byte address. Instead of following up with data, the Master then issues a 2nd START,
followed by the ‘Immediate Address Read’ sequence,
as described earlier.
Sequential Read
If the Master acknowledges the 1st data byte transmitted
by the CAT34C02, then the device will continue transmitting as long as each data byte is acknowledged by
the Master (Figure 11). If the end of memory is reached
during sequential Read, then the address counter will
‘wrap-around’ to the beginning of memory, etc. Sequential
Read works with either ‘Immediate Address Read’ or
‘Selective Read’, the only difference being the starting
byte address.
Doc. No. 1095, Rev. C
8
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT34C02
Figure 9. Immediate Address Read Timing
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
S
T
O
P
SLAVE
ADDRESS
S
P
A
C
K
DATA
N
O
A
C
K
8
SCL
9
8th Bit
SDA
DATA OUT
NO ACK
STOP
Figure 10. Selective Read Timing
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
S
T
A
R
T
BYTE
ADDRESS (n)
SLAVE
ADDRESS
S
T
O
P
SLAVE
ADDRESS
S
S
P
A
C
K
A
C
K
A
C
K
DATA n
N
O
A
C
K
Figure 11. Sequential Read Timing
BUS ACTIVITY:
MASTER
SLAVE
ADDRESS
DATA n
DATA n+1
S
T
O
P
DATA n+x
DATA n+2
SDA LINE
P
A
C
K
A
C
K
A
C
K
A
C
K
N
O
A
C
K
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9
Doc No. 1095, Rev. C
CAT34C02
SOFTWARE WRITE PROTECTION
The lower half of memory (first 128 bytes) can be protected against Write operations by setting one of two
Software Write Protection (SWP) flags.
The Permanent Software Write Protection (PSWP) flag
can be set, but not cleared, by the user. This flag can
be set or queried ‘in-system’.
The Reversible Software Write Protection (RSWP) flag
can be set or queried and cleared by the user during
DDR2 DIMM testing. All RSWP related commands
require the presence of a very high voltage - VHV - on
address pin A0 and fixed CMOS logic levels on the other
two address pins. Thus, for RSWP related commands,
the address pins are used to decode the mode, rather
than to ‘identify’ the device.
A detailed description of all SWP commands can be
found in Table 1. All these commands are preceded by
a START and terminated with a STOP, following the ACK
or NoACK from the CAT34C02.
The first four bits of the Slave address byte must be
0110, in contrast to the regular 1010 ‘preamble’ used
for memory Read or Write commands. The next three
bits must match the logic state of the three physical
address pins. For PSWP commands, the address
pins are all at CMOS levels, and any one of the eight
possible combinations is valid. For RSWP commands,
the A0 pin must be at VHV and will be interpreted as a
logic ‘1’. The other two address pins must be at fixed
CMOS levels, A2 at GND and A1 at GND for Set RSWP
commands and at VCC for Clear RSWP commands.
The VHV level must be established on pin A0 before
the START and maintained just beyond the STOP.
Commands where the last bit of the Slave address is
‘0’, are similar to a ‘Byte Write’, except that both byte
address and data following the Slave address, are ‘don’t
care’ (i.e. just place holders) (Figure 12).
Query type commands, where the last bit in the Slave
address is ‘1’, are somewhat similar to an’‘Immediate
Address Read’, except that no data byte is expected from
the device; the ACK or NoACK itself is the response to
the query. Therefore, the Master will immediately follow
up this response with a STOP (Figure 13).
DELIVERY STATE
The CAT34C02 is shipped ‘unprotected’, i.e. neither
SWP flag is set. The entire 2-Kb memory is erased, i.e.
all bytes are FF.
Doc. No. 1095, Rev. C
10
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT34C02
Table 1. SWP Commands
Action
Control Pin Levels (1)
WP
Set
PSWP
Set
RSWP
Clear
RSWP
A2
A1
A0
Flag State (2)
Slave Address
PSWP RSWP b7 to b4 b3
b2
b1
b0
ACK Address ACK Data ACK Write
?
Byte
?
Byte ?
Cycle
X
A2
A1
A0
1
X
A2
A1
A0
X
No
GND
A2
A1
A0
0
X
A2
A1
A0
0
Yes
X
Yes
X
Yes
Yes
VCC
A2
A1
A0
0
X
A2
A1
A0
0
Yes
X
Yes
X
No
No
X
A2
A1
A0
0
X
A2
A1
A0
1
Yes
X
GND
GND
VHV
1
X
0
0
1
X
No
X
GND
GND
VHV
0
1
0
0
1
X
No
GND
GND
GND
VHV
0
0
0
0
1
0
Yes
X
Yes
X
Yes
Yes
VCC
GND
GND
VHV
0
0
0
0
1
0
Yes
X
Yes
X
No
No
0110
X
GND
GND
VHV
0
0
0
0
1
1
Yes
X
GND
VCC
VHV
1
X
0
1
1
X
No
GND
GND
VCC
VHV
0
X
0
1
1
0
Yes
X
Yes
X
Yes
Yes
VCC
GND
VCC
VHV
0
X
0
1
1
0
Yes
X
Yes
X
No
No
X
GND
VCC
VHV
0
X
0
1
1
1
Yes
Note:
(1) Here A2, A1 and A0 are either at VCC or GND.
(2) 1 stands for ‘Set’, 0 stands for ‘Not Set’, X stands for ‘don’t care’.
Figure 12. Software Write Protect (Write)
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
S
S
T
O
P
BYTE
ADDRESS
DATA
XXXXXXXX
XXXXXXXX
SLAVE
ADDRESS
A
C
K
A
C
K
P
N
A
C or O
K
A
C
K
X = Don't Care
Figure 13. Software Write Protect (Read)
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
S
SLAVE
ADDRESS
S
T
O
P
P
N
A
C or O
K
A
C
K
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11
Doc No. 1095, Rev. C
CAT34C02
8-LEAD TSSOP (Y)
D
5
8
SEE DETAIL A
C
E
E1
E/2
GAGE PLANE
4
1
PIN #1 IDENT.
0.25
θ1
L
A2
SEATING PLANE
SEE DETAIL A
A
e
A1
b
SYMBOL
A
A1
A2
b
c
D
E
E1
e
L
θ1
MIN
0.05
0.18
0.19
0.09
2.90
4.30
0.50
0.00
NOM
0.19
3.00
6.4 BSC
4.40
0.65 BSC
0.60
MAX
1.10
0.15
1.05
0.30
0.02
3.10
4.50
0.70
8.00
Notes:
1.
Lead coplanarity is 0.004” (0.102mm) maximum.
Doc. No. 1095, Rev. C
12
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT34C02
8-PAD TDFN 2X3 PACKAGE (VP2)
A
E
PIN 1 INDEX AREA
A1
D
D2
A2
A3
K
SYMBOL
MIN
NOM
MAX
A
A1
A2
A3
b
D
D2
E
E2
e
K
L
0.70
0.00
0.45
0.75
0.02
0.55
0.20 REF
0.25
2.00
1.40
3.00
1.30
0.50 TYP
0.80
0.05
0.65
0.30
0.40
0.20
1.90
1.30
2.90
1.20
0.20
0.20
E2
0.30
2.10
1.50
3.10
1.40
PIN 1 ID
L
b
e
3xe
NOTE:
1. ALL DIMENSIONS IN MM. ANGLES IN DEGREES.
2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMNALS. COPLANARITY SHALL NOT EXCEED 0.08 MM.
3. WARPAGE SHALL NOT EXCEED 0.10 MM.
4. PACKAGE LENGTH / PACKAGE WIDTH ARE NOT CONSIDERED AS SPECIAL CHARACTERISTIC.
5. REFER JEDEC MO-229.
6. FRAME STOCK# FLXXX (Selective PPF), NSE PKG CODE TD23B008P.
TDFN2X3 (03).eps
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
13
Doc No. 1095, Rev. C
CAT34C02
ORDERING INFORMATION
Prefix
Device #
CAT
34C02
Company ID
Suffix
Y
Product
Number
TE13
I
Temperature Range
I = Industrial (-40°C to +85°C)
Package
Y: TSSOP (Lead-free, Halogen-free, NiPdAu lead plating)
VP2: TDFN (Lead-free, Halogen-free, NiPdAu lead plating)
Tape & Reel
TE13: 3000/Reel
Notes:
(1) The device used in the above example is a CAT34C02YI-TE13 (TSSOP, Industrial Temperature, 1.7 Volt to 5.5 Volt Operating Voltage,
Tape & Reel)
PACKAGE MARKING
8-Lead TSSOP
8-Lead TDFN
YMG
EAN
34C02I
NNN
YM
Y
M
G
34C02
I
= Production Year
= Production Month
= Die Revision
= Device Code
= Industrial Temperature Range
E A = Device Code
N = Traceability Code
Y = Production Year
M = Production Month
Notes:
(1) The circle on the package marking indicates the location of Pin 1.
Doc. No. 1095, Rev. C
14
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT34C02
REVISION HISTORY
Date
Revision Comments
09/27/05
A
Initial Issue
09/28/05
B
Update Features
Update Absolute Maximum Ratings
Update D.C. Operating Characteristics
Update Pin Impedance Characteristics
Update A.C. Characteristics
Update I2C Bus Protocol - Power-On Reset (POR)
10/03/05
C
Update Power-On Reset (POR)
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
15
Doc No. 1095, Rev. C
CAT34C02
Copyrights, Trademarks and Patents
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Doc. No. 1095, Rev. C
16
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Catalyst Semiconductor, Inc.
Corporate Headquarters
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Sunnyvale, CA 94089
Phone: 408.542.1000
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www.caalyst-semiconductor.com
Publication #:
Revison:
Issue date:
1095
C
10/03/05
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