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參數(shù)資料
| 型號(hào)： | 24VL014HT/P |
| 元件分類： | PROM |
| 英文描述： | I2C/2-WIRE SERIAL EEPROM, PDIP8 |
| 封裝： | 0.300 INCH, LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 27/28頁 |
| 文件大?。?/td> | 447K |
| 代理商： | 24VL014HT/P |
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24VL014H
DS22116A-page 8
2008 Microchip Technology Inc.
5.0
DEVICE ADDRESSING
A control byte is the first byte received following the
Start condition from the master device (Figure 5-1).
The control byte consists of a four-bit control code; for
the 24VL014H this is set as ‘1010’ binary for read and
write operations. The next three bits of the control byte
are the Chip Select bits (A2, A1, A0). The Chip Select
bits allow the use of up to eight 24VL014H devices on
the same bus and are used to select which device is
accessed. The Chip Select bits in the control byte must
correspond to the logic levels on the corresponding A2,
A1 and A0 pins for the device to respond. These bits
are in effect the three Most Significant bits of the word
address.
The last bit of the control byte defines the operation to
be performed. When set to a ‘1’, a read operation is
selected. When set to a ‘0’, a write operation is
selected. Following the Start condition, the 24VL014H
monitors the SDA bus, checking the control byte being
transmitted. Upon receiving a ‘1010’ code and
appropriate
Chip
Select
bits,
the
slave
device
outputs an Acknowledge signal on the SDA line.
Depending on the state of the R/W bit, the 24VL014H
will select a read or write operation.
FIGURE 5-1:
CONTROL BYTE FORMAT
5.1
Contiguous Addressing Across
Multiple Devices
The Chip Select bits A2, A1 and A0 can be used to
expand the contiguous address space for up to 8K bits
by adding up to eight 24VL014H devices on the same
bus. In this case, software can use A0 of the control
byte as address bit A7, A1 as address bit A8, and A2
as address bit A9. It is not possible to sequentially read
across device boundaries.
10
1
0
A2
A1
A0
SACK
R/W
Control Code
Chip Select
Bits
Slave Address
Acknowledge Bit
Start Bit
Read/Write Bit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 24VL024H/ST | I2C/2-WIRE SERIAL EEPROM, PDSO8 |
| 24VL024HT/MNY | I2C/2-WIRE SERIAL EEPROM, PDSO8 |
| 25.000.1956.0 | STRIP TERMINAL BLOCK |
| 25.001.1756.0 | STRIP TERMINAL BLOCK |
| 25.342.2053.0 | 15 A, MODULAR TERMINAL BLOCK, 1 ROW, 1 DECK |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 24VL014T | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:1K I2C? Serial EEPROM |
| 24VL014T/MNY | 功能描述:電可擦除可編程只讀存儲(chǔ)器 1K 128 X 8 SERIAL EE 1.5V 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 |
| 24VL014T/MNY-CUT TAPE | 制造商:Microchip 功能描述:24VL014 Series 1 Kb I2C 2 Wire (128 x 8) 1.5 V Serial EEPROM SMT - TDFN-8 |
| 24VL014T/MS | 功能描述:電可擦除可編程只讀存儲(chǔ)器 1K 128 X 8 SERIAL EE 1.5V 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 |
| 24VL014T/OT | 功能描述:電可擦除可編程只讀存儲(chǔ)器 1K 128 X 8 SERIAL EE 1.5V 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 |
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