參數(shù)資料
型號(hào)： M24164-BN1
廠商： 意法半導(dǎo)體
英文描述： Precision Shunt Regulators with Reset in SOT23-3
中文描述： 16千位串行I2C總線的EEPROM
文件頁(yè)數(shù)： 4/21頁(yè)
文件大?。?/td> 135K
代理商： M24164-BN1
M24164
4/21
DEVICE OPERATION
The device supports the I
2
C protocol. This is sum-
marized in Figure 2. Any device that sends data on
to the bus is defined to be a transmitter, and any
device that reads the data to be a receiver. The
device that controls the data transfer is known as
the bus master, and the other as the slave device.
A data transfer can only be initiated by the bus
master, which will also provide the serial clock for
synchronization. The M24164 device is always a
slave in all communication.
Start Condition
Start is identified by a falling edge of Serial Data
(SDA) while Serial Clock (SCL) is stable in the
High state. A Start condition must precede any
data transfer command. The device continuously
monitors (except during a Write cycle) Serial Data
(SDA) and Serial Clock (SCL) for a Start condition,
and will not respond unless one is given.
Stop Condition
Stop is identified by a rising edge of Serial Data
(SDA) while Serial Clock (SCL) is stable and driv-
en High. A Stop condition terminates communica-
tion between the device and the bus master. A
Read command that is followed by NoAck can be
followed by a Stop condition to force the device
into the Stand-by mode. A Stop condition at the
end of a Write command triggers the internal EE-
PROM Write cycle.
Acknowledge Bit (ACK)
The acknowledge bit is used to indicate a success-
ful byte transfer. The bus transmitter, whether it be
bus master or slave device, releases Serial Data
(SDA) after sending eight bits of data. During the
9
th
clock pulse period, the receiver pulls Serial
Data (SDA) Low to acknowledge the receipt of the
eight data bits.
Data Input
During data input, the device samples Serial Data
(SDA) on the rising edge of Serial Clock (SCL).
For correct device operation, Serial Data (SDA)
must be stable during the rising edge of Serial
Clock (SCL), and the Serial Data (SDA) signal
must change onlywhen Serial Clock (SCL) is driv-
en Low.
Memory Addressing
To start communication between the bus master
and the slave device, the bus master must initiate
a Start condition. Following this, the bus master
sends eight bits, on Serial Data (SDA), most signif-
icant bit first. These consist of the 7-bit Device Se-
lect Code, and the Read/Write bit (RW), as shown
in Table 2. This last bit is set to 1 for Read, and 0
for Write operations.
The Device Select Code contains the three most
significant bits of the address within the memory
(A10, A9, A8), and a 3-bit Chip Enable “Address”
(E2, E1, E0).
When the Device Select Code is received on Seri-
al Data (SDA), the device only responds if the Chip
Enable Address is the same as the value on the
Chip Enable (E0, E2, and the inverse of E1) in-
puts. Up to eight devices can be connected on the
same bus, giving a total memory capacity of
128 Kbits, 16 KBytes.
If a match occurs on the Device Select code, the
corresponding device gives an acknowledgment
on Serial Data (SDA) during the 9
th
bit time. If the
device does not match the Device Select code, it
deselects itself from the bus, and goes into Stand-
by mode.
Table 2. Device Select Code
1
Note: 1. The most significant bit, b7, is sent first.
Device
Type
Identifier
Chip Enable Address
Most Significant Address Bits
RW
b7
b6
b5
b4
b3
b2
b1
b0
Device Select Code
1
E2
E1
E0
A10
A9
A8
RW
相關(guān)PDF資料
PDF描述
M24164-BN1T 16 Kbit Serial I2C BUS EEPROM
M24164-MN1 16 Kbit Serial I2C BUS EEPROM
M24164-WBN1 16 Kbit Serial I2C BUS EEPROM
M24164-WBN1T 16 Kbit Serial I2C BUS EEPROM
M24164-MN1T 16 Kbit Serial I2C BUS EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M24164-BN1T 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:16 Kbit Serial I2C BUS EEPROM
M24164-BN6 功能描述:電可擦除可編程只讀存儲(chǔ)器 DIP-8 8KX8 SERIAL RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
M24164MN 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:16 Kbit Serial I2C BUS EEPROM
M24164-MN1 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:16 Kbit Serial I2C BUS EEPROM
M24164-MN1T 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:16 Kbit Serial I2C BUS EEPROM
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