FM24C32D
2-Wire Serial EEPROM
With Unique ID and Security Sector
Data Sheet
Mar. 2017
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
1
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FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
2
Description
Packaging Type
PDIP 8
The FM24C32D provides 32,768 bits of serial electrically
erasable and programmable read-only memory
(EEPROM) organized as 4,096 words of 8 bits each, with
128-bit UID and 32-byte Security Sector. The device‟s
cascadable feature allows up to 8 devices to share a
common 2-wire bus. The device is optimized for use in
many industrial and commercial applications where
low-power and low-voltage operations are essential.
1
8
VCC
A1
2
7
WP
A2
3
6
SCL
GND
4
5
SDA
SOP 8
Features
A0
Low Operation Voltage: VCC = 1.7V to 5.5V
Internally Organized: 4,096 x 8
2-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise
Suppression
Bi-directional Data Transfer Protocol
1MHz (2.5V~5.5V) and 400 kHz (1.7V)
Compatibility
Write Protect Pin for Hardware Data Protection
32-Byte Page Write Modes (Partial Page
Writes are Allowed)
Lockable 32-Byte Security Sector
128-Bit Unique ID for each device
Self-timed Write Cycle (5 ms max)
High-reliability
– Endurance: 1,000,000 Write Cycles
– Data Retention: 40 Years
PDIP8 (RoHS Compliant)
SOP8, TSSOP8, TDFN8, TSOT23-5L, and
Thin 4-ball WLCSP Packages (RoHS
Compliant and Halogen-free)
A0
A1
1
2
8
7
VCC
WP
A2
GND
3
4
6
5
SCL
SDA
TSSOP 8
A0
A1
A2
GND
VCC
WP
SCL
SDA
TDFN8 (2x3mm)
A0
A1
A2
GND
1
8
2
7
3
6
4
5
VCC
WP
SCL
SDA
TSOT23-5L
SCL
WP
GND
SDA
Vcc
Module package (8 Pin)
VCC
C1
C5
GND
NC
C2
C6
NC
SCL
C3
C7
SDA
NC
C4
C8
NC
Thin 4-ball WLCSP
Absolute Maximum Ratings
Operating Temperature
(Plastic Package)
Operating Temperature
(Module Package)
Storage Temperature
(Plastic Package)
Storage Temperature
(Module Package)
Voltage on Any Pin with Respect
to Ground
Maximum Operating Voltage
DC Output Current
8
7
6
5
1
2
3
4
VCC
GND
SCL
SDA
-55°C to +125°C
-20°C to +60°C
-65°C to +150°C
(TOP VIEW)
Pin Configurations
-25°C to +70°C
-1.0V to +7.0V
Pin Name
Function
A0~A2
SDA
SCL
WP
VCC
GND
NC
Device Address Inputs
Serial Data Input/Output
Serial Clock Input
Write Protect
Power Supply
Ground
Not Connect
6.25V
5.0 mA
*NOTICE: Stresses beyond those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of this
specification are not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
3
Figure 1．Block Diagram
WP
WRITE PROTECT
LOGIC
EN
HV PUMP & TIMING
CONTROL
LOGIC
HV
A0
A1
DATA BUFFER
DEVICE ADDRESS
COMPARATOR
DATA WORD
ADDRESS COUNTER
128-bit
Unique
ID
SCL
START STOP LOGIC
SDA
X DECODER
A2
EEPROM
ACK
SEC SECTOR
Din
Dout
DATA
SERIAL MUX
DATA & ACK
INPUT/OUTPUT LOGIC
Y DECODER
OD OUTPUT
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
4
Pin Description
SERIAL CLOCK (SCL): The SCL input is used to
positive edge clock data into each EEPROM device
and negative edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bi-directional
for serial data transfer. This pin is open-drain driven
and may be wire-ORed with any number of other
open-drain or open-collector devices.
DEVICE ADDRESSES (A2, A1, A0): The A2, A1
and A0 pins are device address inputs that are
hardwired or left not connected for hardware
compatibility with other FM24CXX devices. When
the pins are hardwired, as many as eight 32K
devices may be addressed on a single bus system
(device addressing is discussed in detail under the
Device Addressing section). If the pins are left
floating, the A2, A1 and A0 pins will be internally
pulled down to GND if the capacitive coupling to
the circuit board V CC plane is 3pF, FMSH recommends connecting the
address pins to GND.
WRITE PROTECT (WP): The FM24C32D has a
Write Protect pin that provides hardware data
protection. The WP pin allows normal write operations
when connected to ground (GND). When the Write
Protect pin is connected to VCC, all write operations
to the memory are inhibited. If the pin is left floating,
the WP pin will be internally pulled down to GND if
the capacitive coupling to the circuit board Vcc plane
is 3pF, FMSH recommends
connecting the WP to GND. Switching WP to VCC
prior to a write operation creates a software write
protected function.
Write Protect Description
WP Pin Status
Part of the Memory Protected
FM24C32D
WP=VCC
WP=GND
Full Memory
Normal Read/Write Operations
Memory Organization
FM24C32D, 32K SERIAL EEPROM: Internally organized with 128 pages of 32 bytes each, the 32K
requires a 12-bit data word address for random word addressing.
Security Sector ： The FM24C32D offers 32-byte Security Sectors which can be written and (later)
permanently locked in Read-only mode. This memory may be used by the system manufacturers to store
security and other important information separately from the main memory array.
Device ADDR
Page ADDR
Byte Number
···
31
0
0
1
1010
2
Data Memory (128P X 32B)
···
127
xxxx x00x
1011
Security Sector (1P X 32B)
xxxx xxxx1
xxxx x01x
1011
128 Bits Unique ID（UID）
xxxx xxxx2
xxxx x10x
1011
1 Bit Lock Bit（LB）
xxxx xxxx3
Note: 1. Address bits ADDR must be 00, ADDR define byte address, other bits are don‟t care.
2. Address bits ADDR must be 01, ADDR define byte address, other bits are don‟t care.
3. Address bits ADDR must be 10, other bits are don‟t care.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
5
Pin Capacitance
SYMBOL
1
CIN
COUT1
PARAMETER
Input Capacitance
Output Capacitance
CONDITIONS
Max
Units
VIN = 0V, f = 1MHz
VOUT = 0V, f = 1MHz
6
8
pF
pF
Note: 1. This parameter is characterized and is not 100% tested.
DC Characteristics
Applicable over recommended operating range from: TA = -40°C to +85°C, VCC = +1.7V to +5.5V, (unless
otherwise noted).
Symbol
Parameter
VCC
ICC1
ICC2
ISB1
ISB2
ILI
ILO
VIL1
VIH1
VOL2
VOL1
Supply Voltage
Supply Current
Supply Current
Standby Current
Standby Current
Input Leakage Current
Output Leakage Current
Input Low Level
Input High Level
Output Low Level 2
Output Low Level 1
Test Condition
Min
Typ
1.7
VCC = 5.0V, Read at 400KHz
VCC = 5.0V, Write at 400KHz
VCC = 1.7V, VIN = VCC/ VSS
VCC = 5.5V, VIN = VCC/ VSS
VIN = VCC/VSS
VOUT = VCC/ VSS
0.4
2.0
0.1
0.05
-0.6
VCC x 0.7
VCC = 3.0V, IOL = 2.1 mA
VCC =1.7V, IOL = 0.15 mA
Max
Units
5.5
1.0
3.0
1.0
6.0
3.0
3.0
VCC x 0.3
VCC + 0.5
0.4
0.2
V
mA
mA
µA
µA
µA
µA
V
V
V
V
Note: 1. VIL min and VIH max are reference only and are not tested.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
6
AC Characteristics
400 kHz AC characteristics
Recommended operating conditions: TA = -40°C to +85°C, VCC = +1.7V to +5.5V, CL = 100 pF (unless
otherwise noted). Test conditions are listed in Note 2.
Symbol
Parameter
Min
Max
Units
fSCL
tLOW
tHIGH
tI 1
tAA
B
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time
Clock Low to Data Out Valid
Time the bus must be free before a new transmission
can Start
Start Hold Time
Start Setup Time
Data In Hold Time
Data In Setup Time
Inputs Rise Time 1
Inputs Fall Time 1
Stop Setup Time
Data Out Hold Time
Write Cycle Time
B
B
B
B
B
B
B
B
B
tBUF 1
B
B
tHD.STA
tSU.STA
tHD.DAT
tSU.DAT
tR
tF
tSU.STO
tDH
tWR
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
Endurance 1
3.3V, 25°C, Page Mode
400
1.3
0.6
80
0.9
0.1
kHz
µs
µs
ns
µs
1.3
µs
0.6
0.6
0
100
µs
µs
µs
ns
ns
ns
µs
ns
ms
Write
Cycles
300
300
0.6
100
5
1,000,000
1 MHz AC characteristics
Recommended operating conditions: TA = -40°C to +85°C, VCC = +2.5V to +5.5V, CL = 100 pF (unless
otherwise noted). Test conditions are listed in Note 2.
Symbol
Parameter
Min
Max
Units
fSCL
tLOW
tHIGH
tI 1
tAA
B
B
B
B
B
B
B
B
B
B
tBUF 1
B
B
tHD.STA
tSU.STA
tHD.DAT
tSU.DAT
tR
tF
tSU.STO
tDH
tWR
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
Endurance 1
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time
Clock Low to Data Out Valid
Time the bus must be free before a new transmission
can Start
Start Hold Time
Start Setup Time
Data In Hold Time
Data In Setup Time
Inputs Rise Time 1
Inputs Fall Time 1
Stop Setup Time
Data Out Hold Time
Write Cycle Time
3.3V, 25°C, Page Mode
FM24C32D 2-Wire Serial EEPROM
1
500
320
80
450
500
ns
250
250
0
50
ns
ns
ns
ns
ns
ns
ns
ns
ms
Write
Cycles
120
120
250
100
5
1,000,000
Ver 1.1
MHz
ns
ns
ns
ns
Data Sheet
7
Notes: 1. This parameter is characterized and is not 100% tested.
2. AC measurement conditions:
RL (connects to VCC): 1.3 kΩ
Input pulse voltages: 0.3 VCC to 0.7 VCC
Input rise and fall times: ≤ 50 ns
Input and output timing reference voltages: 0.5 VCC
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
8
Device Operation
CLOCK and DATA TRANSITIONS: The SDA pin is
normally pulled high with an external device. Data on
the SDA pin may change only during SCL low time
periods (refer to Figure 4). Data changes during
SCL high periods will indicate a start or stop
condition as defined below.
START CONDITION: A high-to-low transition of SDA
with SCL high is a start condition which must
precede any other command (refer to Figure 5).
STOP CONDITION: A low-to-high transition of SDA
with SCL high is a stop condition. After a read
sequence, the stop command will place the EEPROM
in a standby power mode (refer to Figure 5).
ACKNOWLEDGE: All address and data words are
serially transmitted to and from the EEPROM in 8-bit
words. The EEPROM sends a zero during the ninth
clock cycle to acknowledge that it has received
each word.
STANDBY MODE: The FM24C32D features a
low-power standby mode which is enabled: (a)
upon power-up and (b) after the receipt of the stop
bit and the completion of any internal operations.
Memory RESET: After an interruption in protocol,
power loss or system reset, any 2-wire part can be
reset in following these steps:
1. Clock up to 9 Cycles,
2. Look for SDA high in each cycle while SCL is
high and then,
3. Create a start condition as SDA is high.
Bus Timing
Figure 2．SCL: Serial Clock, SDA: Serial Data I/O
tHIGH
tF
tLOW
SCL
tSU.STA
tHD.STA
tR
tLOW
tHD.DAT
tSU.DAT
tSU.STO
SDA
IN
tAA
tDH
tBUF
SDA
OUT
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
9
Write Cycle Timing
Figure 3．SCL: Serial Clock, SDA: Serial Data I/O
SCL
SDA
8th BIT
ACK
tWR1
WORD n
STOP
CONDITION
START
CONDITION
Note: 1. The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the
internal clear/write cycle.
Figure 4．Data Validity
SDA
SCL
DATA STABLE
DATA STABLE
DATA CHANGE
Figure 5．Start and Stop Definition
SDA
SCL
START
FM24C32D 2-Wire Serial EEPROM
STOP
Ver 1.1
Data Sheet
10
Figure 6．Output Acknowledge
SCL
1
8
9
DATA
IN
DATA
OUT
START
ACKNOWLEDGE
Device Addressing
Data Memory Access: The 32K EEPROM device
requires a 8-bit device address word following a start
condition to enable the chip for a read or write
operation (refer to Table 1~3).
address word with a „1011‟(Bh) sequence (refer to
Table 1). The behavior of the next three bits (A2, A1
and A0) remains the same as during a standard
memory addressing sequence.
The device address word consists of a mandatory
„1010‟(Ah) sequence for the first four most significant
bits as shown in Table 1. This is common to all the
EEPROM devices.
The eighth bit of the device address needs be set to
a one to read the Serial Number. Writing or altering
the 128-bit unique ID is not possible.
The 32K EEPROM uses the three device address
bits A2, A1, A0 to allow as many as eight devices on
the same bus. These bits must compare to their
corresponding hard-wired input pins. The A2, A1 and
A0 pins use an internal proprietary circuit that biases
them to a logic low condition if the pins are allowed
to float.
The Module package device address word also
consists of a mandatory „1010b‟(Ah) sequence for
the first four most significant bits. The next 3 bits are
all zero.
The eighth bit of the device address is the read/write
operation select bit. A read operation is initiated if
this bit is high and a write operation is initiated if this
bit is low.
Upon a compare of the device address, the
EEPROM will output a zero. If a compare is not
made, the device will return to a standby state.
For more details on accessing this special feature,
See read operations on page 14.
Security Sector Access: The FM24C32D offers
32-byte Security Sector which can be written and
(later) permanently locked in Read-only mode.
Access to this memory location is obtained by
beginning the device address word with a „1011b‟(Bh)
sequence (refer to Table 1). The behavior of the next
three bits (A2, A1 and A0) remains the same as during
a standard memory addressing sequence.
The eighth bit of the device address is the read/write
operation select bit. A read operation is initiated if
this bit is high and a write operation is initiated if this
bit is low.
For more details on accessing this special feature, See
Write Operations and Read Operations on page 13,14.
NOISE PROTECTION: Special internal circuitry
placed on the SDA and SCL pins prevent small noise
spikes from activating the device.
Unique ID Access: The FM24C32D utilizes a
separate memory block containing a factory
programmed 128-bit unique ID. Access to this
memory location is obtained by beginning the device
DATA SECURITY: The Device has a hardware data
protection scheme that allows the user to write protect
the entire memory when the WP pin is at VCC.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
11
Table 1．Device Address
Access Area
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Data Memory
Security Sector
Security Sector Lock Bit
1
1
1
1
0
0
0
0
1
1
1
1
0
1
1
1
A2
A2
A2
A2
A1
A1
A1
A1
A0
A0
A0
A0
R/W
R/W
R/W
Unique ID Number
1
MSB
LSB
Table 2．First Word Address
Access Area
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Data Memory
Security Sector
Security Sector Lock Bit
Unique ID Number
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
A11
x
x
x
A10
0
1
0
A9
0
0
1
A8
x
X
x
MSB
LSB
NOTE: x = Don`t care bit.
Table 3．Second Word Address
Access Area
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Data Memory
Security Sector
Security Sector Lock Bit
Unique ID Number
A7
x
x
x
A6
x
x
x
A5
x
x
x
A4
A4
x
x
A3
A3
x
0
A2
A2
x
0
A1
A1
x
0
A0
A0
x
0
MSB
LSB
NOTE: x = Don`t care bit.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
12
Write Operations
BYTE WRITE: A write operation requires two 8-bit
data word address following the device address
word and acknowledgment. Upon receipt of this
address, the EEPROM will again respond with a
zero and then clock in the first 8-bit data word.
Following receipt of the 8-bit data word, the
EEPROM will output a zero and the addressing
device, such as a microcontroller, must terminate
the write sequence with a stop condition. At this
time the EEPROM enters an internally-timed write
cycle, tWR, to the nonvolatile memory. All inputs are
disabled during this write cycle and the EEPROM
will not respond until the write is complete (see
Figure 7 on page 15).
PAGE WRITE: The 32K EEPROM is capable of
32-byte page writes. A page write is initiated the
same way as a byte write, but the microcontroller
does not send a stop condition after the first data
word is clocked in. Instead, after the EEPROM
acknowledges receipt of the first data word, the
microcontroller can transmit up to 31 more data
words. The EEPROM will respond with a zero after
each data word received. The microcontroller must
terminate the page write sequence with a stop
condition (see Figure 8 on page 15).
The data word address lower seven bits are
internally incremented following the receipt of each
data word. The higher data word address bits are
not incremented, retaining the memory page row
location. When the word address, internally
generated, reaches the page boundary, the
following byte is placed at the beginning of the
same page. If more than 32 data words are
transmitted to the EEPROM, the data word
address will “roll over” and previous data will be
overwritten.
FM24C32D 2-Wire Serial EEPROM
ACKNOWLEDGE POLLING: Once the internally
timed write cycle has started and the EEPROM
inputs are disabled, acknowledge polling can be
initiated. This involves sending a start condition
followed by the device address word. The
read/write bit is representative of the operation
desired. Only if the internal write cycle has
completed will the EEPROM respond with a zero
allowing the read or write sequence to continue.
WRITE SECURITY SECTOR: Write the Security
Sector is similar to the page write but requires use
of device address, and the special word address
seen in Table 1 on page 12. The higher address
bits ADDR are don‟t care except for address
bits ADDR，which must be equal to „00b‟.
Lower address bits ADDR define the byte
address inside the Security Sector (see Figure 12
on page 16).
If the Security Sector is locked, the data bytes
transferred during the Write Security Sector
operation are not acknowledged (NoAck).
LOCK SECURITY SECTOR: Lock the Security
Sector is similar to the byte write but requires use
of device address, and special word address seen
in Table 1 on page 12. The word address bits
ADDR must be „10b‟, all other word address
bits are don‟t care. The data byte must be equal to
the binary value xxxx xx1x(see Figure 14 on page
17).
If the Security Sector is locked, the data bytes
transferred during the Lock Security Sector
operation are not acknowledged (NoAck).
Ver 1.1
Data Sheet
13
Read Operations
Read operations are initiated the same way as write
operations with the exception that the read/write select
bit in the device address word is set to one.
CURRENT ADDRESS READ: The internal data word
address counter maintains the last address accessed
during the last read or write operation, incremented by
one. This address stays valid between operations as
long as the chip power is maintained. The address “roll
over” during read is from the last byte of the last
memory page to the first byte of the first page. The
address “roll over” during write is from the last byte of
the current page to the first byte of the same page.
Once the device address with the read/write select bit
set to one is clocked in and acknowledged by the
EEPROM, the current address data word is serially
clocked out. The microcontroller does not respond with
an input zero but does generate a following stop
condition (see Figure 9 on page 15).
RANDOM READ: A random read requires a “dummy”
byte write sequence to load in the data word address.
Once the device address word and data word address
are clocked in and acknowledged by the EEPROM,
the microcontroller must generate another start
condition. The microcontroller now initiates a current
address read by sending a device address with the
read/write select bit high. The EEPROM
acknowledges the device address and serially clocks
out the data word. The microcontroller does not
respond with a zero but does generate a following stop
condition (see Figure 10 on page 16).
SEQUENTIAL READ: Sequential reads are initiated
by either a current address read or a random address
read. After the microcontroller receives a data word, it
responds with an acknowledge. As long as the
EEPROM receives an acknowledge, it will continue to
increment the data word address and serially clock out
sequential data words. When the memory address
limit is reached, the data word address will “roll over”
and the sequential read will continue. The sequential
read operation is terminated when the microcontroller
does not respond with a zero but does generate a
following stop condition (see Figure 11 on page 16)
UNIQUE ID READ: Reading the serial number is
similar to the sequential read but requires use of the
device address, a dummy write, and the use of specific
word address seen in Table 1 on page 12. The higher
address bits ADDR are don‟t care except for
address bits ADDR，which must be equal to
„x1b‟. Lower address bits ADDR define the byte
address inside the UID. If the application desires to
read the first byte of the UID, the lower address bits
FM24C32D 2-Wire Serial EEPROM
ADDR would need to be „0000b‟.
When the end of the 128-bit UID number is reached
(16 bytes of data), the data word address will roll-over
back to the beginning of the 128-bit UID number. The
Unique ID Read operation is terminated when the
microcontroller does not respond with a zero (ACK)
and instead issues a Stop condition (see Figure 16 on
page 18).
READ SECURITY SECTOR ： Read the Security
Sector is similar to the random read but requires use of
device address, a dummy write, and the use of specific
word address seen in Table 1 on page 12. The higher
address bits ADDR are don‟t care except for
address bits ADDR，which must be equal to
„00b‟. The lower address bits ADDR define the
byte address inside the Security Sector.
The internal byte address is automatically incremented
to the next byte address after each byte of data is
clocked out. When the last byte (1Fh) is reached, it will
roll over to 00h, the first byte of the Security Sector,
and continue to increment. (see Figure 13 on page
17).
READ LOCK STATUS：There are two ways to check
the lock status of the Security Sector.
1. The first way is initiated by a Security Sector Write,
the EEPROM will acknowledge if the Security Sector is
unlocked, while it will not acknowledge if the Security
Sector is locked.
Once the acknowledge bit is read, it is recommended
to generate a Start condition followed by a Stop
condition, so that:
Start: the truncated command is not executed
because the Start condition resets the device
internal logic
Stop: the device is then set back into Standby
mode by the Stop condition.
2. The second way is initiated by a Lock Status Read.
Lock Status Read is similar to the random read but
requires use of device address seen in Table 1 on
page 12, a dummy write, and the use of specific word
address. The address bits ADDR must be „10b‟,
all other address bits are Don't Care. The Lock bit is
the BIT1 of the byte read on SDA. It is at “1” when the
lock is active and at “0” when the lock is not active.
The same data is shifted out repeatedly until the
microcontroller does not respond with a zero but does
generate a following stop condition (see Figure 15 on
page 18).
Ver 1.1
Data Sheet
14
Figure 7．Byte Write
S
T
A
R
T
W
R
I
T
E
DEVICE
ADDRESS
FIRST
WORD ADDRESS
SDA LINE
SECOND
WORD ADDRESS
S
T
O
P
DATA
* * * *
M
S
B
LRA
S / C
BW K
L A
S C
BK
M
S
B
A
C
K
A
C
K
Note: 1. * = Don’t CARE bits
Figure 8．Page Write
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
FIRST
SECOND
T
E WORD ADDRESS (n) WORD ADDRESS (n)
SDA LINE
DATA (n)
S
T
O
P
DATA(n+x)
* * * *
M
S
B
LRA
S / C
BW K
A
C
K
A
C
K
A
C
K
A
C
K
Note: 1. * = Don’t CARE bits
Figure 9．Current Address Read
S
T
A
R
T
DEVICE
ADDRESS
R
E
A
D
S
T
O
P
DATA
SDA LINE
M
S
B
FM24C32D 2-Wire Serial EEPROM
L R A
S / C
BWK
Ver 1.1
N
O
A
C
K
Data Sheet
15
Figure 10． Random Read
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
T
E
SECOND WORD
ADDRESS n
FIRST WORD
ADDRESS n
SDA LINE
S
T
A
R
T
DEVICE
ADDRESS
R
E
A
D
S
T
O
P
DATA n
* * **
M
S
B
A
C
K
LRA
S / C
BW K
A
C
K
A
C
K
N
O
A
C
K
DUMMY WRITE
Note: 1. * = Don’t CARE bits.
Figure 11． Sequential Read
DEVICE
ADDRESS
R
E
A
D
DATA n+1
DATA n
S
T
O
P
DATA(n+x)
DATA n+2
SDA LINE
A
C
K
RA
/ C
WK
A
C
K
N
O
A
C
K
A
C
K
Figure 12． Write Security Sector
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
T
E
SDA LINE
FIRST WORD
ADDRESS n
** ** *
M
S
B
SECOND WORD
ADDRESS n
*
* * *
A
C
K
L R A
S / C
BWK
A
C
K
DATA n+1
DATA n
A
C
K
DATA n+2
A
C
K
S
T
O
P
DATA n+x
A
C
K
AC
K
Note: 1. * = Don’t CARE bits.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
16
Figure 13． Read Security Sector
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
T
E
FIRST WORD
ADDRESS n
SDA LINE
** ** *
M
S
B
S
T
A
R
T
SECOND WORD
ADDRESS n
DEVICE
ADDRESS
* * *
*
A
C
K
LRA
S / C
BW K
R
E
A
D
A
C
K
A
C
K
DUMMY WRITE
DATA n
DATA n+1
DATA n+2
A
C
K
A
C
K
S
T
O
P
DATA n+x
N
O
A
C
K
A
C
K
Note: 1. * = Don’t CARE bits.
Figure 14． Lock Security Sector
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
T
E
SDA LINE
** ** *
M
S
B
L R A
S / C
BWK
SECOND WORD
ADDRESS n
FIRST WORD
ADDRESS n
*
S
T
O
P
DATA 0
** * * ** **
A
C
K
A
C
K
A
C
K
Note: 1. * = Don’t CARE bits.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
17
Figure 15． Read Lock Status
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
T
E
FIRST WORD
ADDRESS n
SDA LINE
SECOND WORD
ADDRESS n
** ** *
M
S
B
S
T
A
R
T
*
DEVICE
ADDRESS
** * * ** **
A
C
K
LRA
S / C
BW K
R
E
A
D
A
C
K
A
C
K
DUMMY WRITE
LOCK BYTE
LOCK BYTE
«
LOCK BYTE
«
A
C
K
LOCK BYTE
«
A
C
K
S
T
O
P
«
A
C
K
N
O
A
C
K
Note: 1. * = Don’t CARE bits.
2. « = LOCK bit.
Figure 16．Read Unique ID
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
T
E
SDA LINE
M
S
B
SECOND WORD
ADDRESS n
FIRST WORD
ADDRESS n
** ** *
S
T
A
R
T
*
Serial Number
Data 0
** * *
A
C
K
LRA
S / C
BW K
R
E
A
D
DEVICE
ADDRESS
A
C
K
A
C
K
A
C
K
DUMMY WRITE
Serial Number
Data 1
Serial Number
Data 2
A
C
K
Serial Number
Data 3
A
C
K
S
T
O
P
Serial Number
Data F
A
C
K
N
O
A
C
K
Note: 1. * = Don’t CARE bits.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
18
Ordering Information
FM 24C 32 D -PP -C -H
Company Prefix
FM
FM == Shanghai
Shanghai Fudan
Fudan Microelectronics
Microelectronics Group
Group Co.,ltd
Co.,ltd
Product Family
24C
24C == 2-Wire
2-Wire Serial
Serial EEPROM
EEPROM
Product Density
32 = 32K-bit
Device Type
DD == with
with 128-bit
128-bit Unique
Unique ID
ID
with
32-byte
with 32-byte Security
Security Sector
Sector
Package Type 1
PD = 8-pin PDIP
SO = 8-pin SOP
TS = 8-pin TSSOP
2
DN = 8-pin TDFN (2x3mm)
3
CT = Thin 4-ball WLCSP
ST = 5-pin TSOT23
M2F or M2P = 8-pin Module Package 3
Product Carrier
U = Tube
T = Tape and Reel
R = Module Reel
HSF ID Code 4
Blank or R = RoHS Compliant
G = RoHS Compliant, Halogen-free, Antimony-free
Note:
1. For SO, TS, DN package, MSL1 package are available, for detail please contact local sales office.
2. For Thinner package please contact local sales office.
3. For the details of WLCSP package and Module package please contact local sales office.
4. For PD package: R class only.
For SO, TS, DN, ST and CT package: G class only.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
19
Part Marking Scheme
PDIP8
FM24C32D
YYWWALH
HSF ID Code
R = RoHS Compliant
Lot Number（just with 0~9、A~Z）
Assembly’s Code
Work week during which the product was molded (eg..week 12)
The last two digits of the year In which the product was sealed / molded.
SOP8
FM24C32D
YYWWALHM
Moisture Sensitivity Level
1 = MSL1
Blank=MSL3
HSF ID Code
R = RoHS Compliant
G = RoHS Compliant, Halogen-free, Antimony-free
Lot Number（just with 0~9、A~Z）
Assembly’s Code
Work week during which the product was molded (eg..week 12)
The last two digits of the year In which the product was sealed/ molded.
TSSOP8
FM24C32D
YYWWALHM
Moisture Sensitivity Level
1=MSL1
Blank=MSL3
HSF ID Code
R = RoHS Compliant
G = RoHS Compliant, Halogen-free, Antimony-free
Lot Number（just with 0~9、A~Z）
Assembly’s Code
Work week during which the product was molded (eg..week 12)
The last two digits of the year In which the product was sealed / molded.
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
20
TDFN8 (2x3mm)
4
C
5
D
Y
M
A
L
H
M
Product Density Code
The month (hexadecimal digit) in which the product was molded.
The last one digit of year in which the product was sealed/molded
HSF ID Code
G = RoHS Compliant, Halogen-free, Antimony-free
Moisture Sensitivity Level
1=MSL1
Lot Number（just with 0~9、A~Z）
Assembly’s Code
TSOT23-5L
5DYMLH
HSF ID Code
R = RoHS Compliant
G = RoHS Compliant, Halogen-free, Antimony-free
Lot Number（just with 0~9、A~Z）
The month (hexadecimal digit) in which the product was molded.
The last two digits of the year In which the product was sealed / molded.
Product Density Code
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
21
Packaging Information
PDIP 8
Symbol
MIN
--A
A1
0.380
b
0.380
b2
1.300
C
0.200
D
9.000
E1
6.100
E
7.320
e
L
2.920
--eB
NOTE:
1. Dimensions are in Millimeters.
FM24C32D 2-Wire Serial EEPROM
MAX
5.000
--0.570
1.700
0.360
10.000
7.000
8.250
2.540(BSC)
3.810
10.900
Ver 1.1
Data Sheet
22
SOP 8
Symbol
MIN
A
1.350
A1
0.050
b
0.330
c
0.150
D
4.700
E1
3.700
E
5.800
e
L
0.400
θ
0°
NOTE:
1. Dimensions are in Millimeters.
FM24C32D 2-Wire Serial EEPROM
MAX
1.750
0.250
0.510
0.260
5.150
4.100
6.200
1.270(BSC)
1.270
8°
Ver 1.1
Data Sheet
23
TSSOP8
Symbol
MIN
D
2.900
E1
4.300
b
0.190
c
0.090
E
6.200
A
A1
0.050
e
L
0.450
θ
0°
NOTE:
1. Dimensions are in Millimeters.
FM24C32D 2-Wire Serial EEPROM
MAX
3.100
4.500
0.300
0.200
6.600
1.200
0.150
0.650 (BSC)
0.750
8°
Ver 1.1
Data Sheet
24
TDFN8 (2x3mm)
Symbol
MIN
A
0.700
A1
0.000
D
1.900
E
2.900
D2
1.400
E2
1.400
k
b
0.200
e
L
0.200
NOTE:
1. Dimensions are in Millimeters.
FM24C32D 2-Wire Serial EEPROM
MAX
0.800
0.050
2.100
3.100
1.600
1.700
0.150(MIN)
0.300
0.500(TYP)
0.500
Ver 1.1
Data Sheet
25
TSOT23-5L
Symbol
MIN
A
0.700
A1
0.000
A2
0.700
b
0.350
c
0.080
D
2.820
E1
1.600
E
2.650
e
e1
L
0.300
θ
0°
NOTE:
1. Dimensions are in Millimeters.
FM24C32D 2-Wire Serial EEPROM
MAX
0.900
0.100
0.800
0.500
0.200
3.020
1.700
2.950
0.950(BSC)
1.900(BSC)
0.600
8°
Ver 1.1
Data Sheet
26
Revision History
Version
1.0
1.1
Publication
Pages
Revise Description
date
Dec. 2015
27
Initial document Release.
Added the 5-pin TSOT23 offering and parts.
Mar. 2017
28
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
27
Sales and Service
Shanghai Fudan Microelectronics Group Co., Ltd.
Address: Bldg No. 4, 127 Guotai Rd,
Shanghai City China.
Postcode: 200433
Tel: (86-021) 6565 5050
Fax: (86-021) 6565 9115
Shanghai Fudan Microelectronics (HK) Co., Ltd.
Address: Unit 506, 5/F., East Ocean Centre, 98 Granville
Road, Tsimshatsui East, Kowloon, Hong Kong
Tel: (852) 2116 3288 2116 3338
Fax: (852) 2116 0882
Beijing Office
Address: Room 423, Bldg B, Gehua Building,
1 QingLong Hutong, Dongzhimen Alley north Street,
Dongcheng District, Beijing City, China.
Postcode: 100007
Tel: (86-010) 8418 6608
Fax: (86-010) 8418 6211
Shenzhen Office
Address: Room.1301, Century Bldg, No. 4002, Shengtingyuan
Hotel, Huaqiang Rd (North),
Shenzhen City, China.
Postcode: 518028
Tel: (86-0755) 8335 0911 8335 1011 8335 2011 8335 0611
Fax: (86-0755) 8335 9011
Shanghai Fudan Microelectronics (HK) Ltd Taiwan
Representative Office
Address: Unit 1225, 12F., No 252, Sec.1 Neihu Rd.,
Neihu Dist., Taipei City 114, Taiwan
Tel : (886-2) 7721 1889 (886-2) 7721 1890
Fax: (886-2) 7722 3888
Shanghai Fudan Microelectronics (HK) Ltd
Singapore Representative Office
Address : 237, Alexandra Road, #07-01 The Alexcier,
Singapore 159929
Tel : (65) 6472 3688
Fax: (65) 6472 3669
Shanghai Fudan Microelectronics Group Co., Ltd
NA Office
Address :2490 W. Ray Road Suite#2
Chandler, AZ 85224 USA
Tel : (480) 857-6500 ext 18
Web Site: http://www.fmsh.com/
FM24C32D 2-Wire Serial EEPROM
Ver 1.1
Data Sheet
28
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