M24C32-WDW6TP STMicroelectronics, M24C32-WDW6TP Datasheet - Page 20
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M24C32-WDW6TP
Manufacturer Part Number
M24C32-WDW6TP
Description
IC EEPROM 32KBIT 400KHZ 8TSSOP
Manufacturer
STMicroelectronics
Specifications of M24C32-WDW6TP
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
32K (4K x 8)
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-TSSOP
Density
32Kb
Interface Type
Serial (I2C)
Organization
4Kx8
Access Time (max)
900ns
Frequency (max)
400KHz
Write Protection
Yes
Data Retention
40Year
Operating Supply Voltage (typ)
3.3/5V
Package Type
TSSOP
Operating Temp Range
-40C to 85C
Supply Current
5mA
Operating Supply Voltage (min)
2.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Maximum Clock Frequency
0.4 MHz
Access Time
900 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.5 V
Maximum Operating Current
2 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
2.5 V, 5.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8645-2
M24C32-WDW6TP
M24C32-WDW6TP
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
M24C32-WDW6TP
Manufacturer:
STM
Quantity:
1 079
Company:
Part Number:
M24C32-WDW6TP/K
Manufacturer:
ST
Quantity:
2 278
Device operation
4.10
4.11
4.12
4.13
4.14
20/38
Read operations
Read operations are performed independently of the state of the Write Control (WC) signal.
After the successful completion of a Read operation, the device’s internal address counter is
incremented by one, to point to the next byte address.
Random Address Read
A dummy Write is first performed to load the address into this address counter (as shown in
Figure
condition, and repeats the device select code, with the Read/Write bit (RW) set to 1. The
device acknowledges this, and outputs the contents of the addressed byte. The bus master
must not acknowledge the byte, and terminates the transfer with a Stop condition.
Current Address Read
For the Current Address Read operation, following a Start condition, the bus master only
sends a device select code with the Read/Write bit (RW) set to 1. The device acknowledges
this, and outputs the byte addressed by the internal address counter. The counter is then
incremented. The bus master terminates the transfer with a Stop condition, as shown in
Figure
Sequential Read
This operation can be used after a Current Address Read or a Random Address Read. The
bus master does acknowledge the data byte output, and sends additional clock pulses so
that the device continues to output the next byte in sequence. To terminate the stream of
bytes, the bus master must not acknowledge the last byte, and must generate a Stop
condition, as shown in
The output data comes from consecutive addresses, with the internal address counter
automatically incremented after each byte output. After the last memory address, the
address counter ‘rolls-over’, and the device continues to output data from memory address
00h.
Acknowledge in Read mode
For all Read commands, the device waits, after each byte read, for an acknowledgment
during the 9
time, the device terminates the data transfer and switches to its Standby mode.
10) but without sending a Stop condition. Then, the bus master sends another Start
10, without acknowledging the Byte.
th
bit time. If the bus master does not drive Serial Data (SDA) low during this
Figure
10.
Doc ID 4578 Rev 17
M24C32-W M24C32-R M24C32-F