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参数资料
| 型号： | ADM1169ASTZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 31/36页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER/SUPERVISOR 32LQFP |
| 标准包装： | 500 |
| 系列： | Super Sequencer® |
| 应用： | 电源监控器，序列发生器 |
| 输入电压： | 3 V ~ 14.4 V |
| 电源电压： | 3 V ~ 14.4 V |
| 电流 - 电源： | 4.2mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-LQFP |
| 供应商设备封装： | 32-LQFP（7x7） |
| 包装： | 带卷 (TR) |
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Data Sheet
ADM1169
W A
A
A DATA A P
?
1
S
To write a single byte of data to the EEPROM. In this case, the
command byte is the high byte of EEPROM Address 0xF8
to EEPROM Address 0xFB. The first data byte is the low
byte of the EEPROM address, and the second data byte is
2 3 4 5 6 7 8 9 10
EEPROM EEPROM
SLAVE ADDRESS ADDRESS
ADDRESS HIGH BYTE LOW BYTE
(0xF8 TO 0xFB) (0x00 TO 0xFF)
Unlike some EEPROM devices that limit block writes to within
a page boundary, there is no limitation on the start address
when performing a block write to EEPROM, except when
? There are fewer than N locations from the start address to
the highest EEPROM address (0xFBFF), which results in
writing to invalid addresses.
? An address crosses a page boundary. In this case, both
pages must be erased before programming.
Block Write
Figure 43. Single Byte Write to the EEPROM
Note that the ADM1169 features a clock extend function for
writes to EEPROM. Programming an EEPROM byte takes
In a block write operation, the master device writes a block of
data to a slave device, as shown in Figure 45. The start address
a send byte operation sets a RAM address, and a write byte/word
operation sets an EEPROM address as follows:
approximately 250 μs, which limits the SMBus clock for
repeated or block write operations. The ADM1169 pulls SCL
low and extends the clock pulse when it cannot accept any
more data.
READ OPERATIONS
1.
2.
3.
4.
The master device asserts a start condition on SDA.
The master sends the 7-bit slave address followed by
the write bit (low).
The addressed slave device asserts an ACK on SDA.
The master sends a command code that tells the slave
The ADM1169 uses the following SMBus read protocols.
Receive Byte
In a receive byte operation, the master device receives a single
byte from a slave device, as follows:
device to expect a block write. The ADM1169 command
code for a block write is 0xFC (1111 1100).
5. The slave asserts an ACK on SDA.
6. The master sends a data byte that tells the slave device how
many data bytes are being sent. The SMBus specification
allows a maximum of 32 data bytes in a block write.
7. The slave asserts an ACK on SDA.
8. The master sends N data bytes.
9. The slave asserts an ACK on SDA after each data byte.
10. The master asserts a stop condition on SDA to end the
transaction.
1. The master device asserts a start condition on SDA.
2. The master sends the 7-bit slave address followed by the
read bit (high).
3. The addressed slave device asserts an ACK on SDA.
4. The master receives a data byte.
5. The master asserts a NACK on SDA.
6. The master asserts a stop condition on SDA, and the
transaction ends.
In the ADM1169 , the receive byte protocol is used to read a
single byte of data from a RAM or EEPROM location whose
address has previously been set by a send byte or write byte/
1
2
3
4
5
6
S
SLAVE
ADDRESS
R
A
DATA
A
P
Figure 44. Single Byte Read from the EEPROM or RAM
1
2
3
4
5
6
7
8
9
10
S ADDRESS W A (BLOCK WRITE) A COUNT A DATA A DATA A DATA A P
SLAVE COMMAND 0xFC BYTE
1 2 N
Figure 45. Block Write to the EEPROM or RAM
Rev. A | Page 31 of 36
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1170 | 制造商:AD 制造商全称:Analog Devices 功能描述:1.6 V to 16.5 V Hot Swap Controller with Soft Start |
| ADM1170-1AUJZ-RL7 | 功能描述:IC CTRLR HOTSWAP 16.5V TSOT-23-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| ADM1170-2AUJZ-RL7 | 功能描述:IC CTRLR HOTSWAP 16.5V TSOT-23-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| ADM1171 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.7 V to 16.5 V Hot Swap Controller with Current Sense Output |
| ADM1171-1AUJ | 制造商:Analog Devices 功能描述:ADI HOT SWAP CONTROLLER - Bulk |
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