M24256-BRDW6TP STMicroelectronics, M24256-BRDW6TP Datasheet - Page 2

IC EEPROM 256KBIT 400KHZ 8TSSOP

M24256-BRDW6TP

Manufacturer Part Number
M24256-BRDW6TP
Description
IC EEPROM 256KBIT 400KHZ 8TSSOP
Manufacturer
STMicroelectronics
Datasheets

Specifications of M24256-BRDW6TP

Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-TSSOP
Organization
32 K x 8
Interface Type
I2C
Maximum Clock Frequency
0.4 MHz
Access Time
900 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Maximum Operating Current
0.5 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
2.5 V, 3.3 V, 5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6347-2

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Company
Part Number
Manufacturer
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Price
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M24256-BRDW6TP
Manufacturer:
STMicroelectronics
Quantity:
49 478
Part Number:
M24256-BRDW6TP
Manufacturer:
ST
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Part Number:
M24256-BRDW6TP
Manufacturer:
ST
Quantity:
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Part Number:
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Quantity:
20 000
Part Number:
M24256-BRDW6TP
0
Company:
Part Number:
M24256-BRDW6TP
Quantity:
32 000
Part Number:
M24256-BRDW6TP.
Manufacturer:
ST
0
Contents
Contents
1
2
3
2/42
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
2.2
2.3
2.4
2.5
2.6
Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
Serial Data (SDA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Write Control (WC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Supply voltage (V
Lock Identification Page (M24256-D only) . . . . . . . . . . . . . . . . . . . . . . . . 16
ECC (error correction code) and write cycling . . . . . . . . . . . . . . . . . . . . . 16
Read operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Random Address Read (in memory array) . . . . . . . . . . . . . . . . . . . . . . . . 19
Current Address Read (in memory array) . . . . . . . . . . . . . . . . . . . . . . . . 20
Sequential Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Serial Clock (SCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chip Enable (E0, E1, E2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
V
2.6.1
2.6.2
2.6.3
2.6.4
Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Acknowledge bit (ACK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Data input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Addressing the memory array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Write operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Byte Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Page Write (memory array) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Write Identification Page (M24256-D only) . . . . . . . . . . . . . . . . . . . . . . . . 16
Minimizing system delays by polling on ACK . . . . . . . . . . . . . . . . . . . . . . 18
Reading the Identification Page (M24256-D only) . . . . . . . . . . . . . . . . . . 20
SS
ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating supply voltage V
Power-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Device reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power-down conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CC
Doc ID 6757 Rev 23
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
M24256-BF, M24256-BR, M24256-BW, M24256-DR
CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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