- 您现在的位置：买卖IC网 > PDF目录16740 > ADM1168ASTZ (Analog Devices Inc)IC SEQUENCER/SUPERVISOR 32LQFP PDF资料下载
参数资料
| 型号： | ADM1168ASTZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 26/28页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER/SUPERVISOR 32LQFP |
| 标准包装： | 1 |
| 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： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页当前第26页第27页第28页
ADM1168
Block Read
In a block read operation, the master device reads a block of data
from a slave device. The start address for a block read must have
been set previously. In the ADM1168, this is done by a send byte
operation to set a RAM address, or a write byte/word operation to
set an EEPROM address. The block read operation itself consists of
a send byte operation that sends a block read command to the
slave, immediately followed by a repeated start and a read operation
that reads out multiple data bytes, as follows:
Data Sheet
Error Correction
The ADM1168 provides the option of issuing a packet error
checking (PEC) byte after a write to the RAM, a write to the
EEPROM, a block write to the RAM/EEPROM, or a block read
from the RAM/EEPROM. This option enables the user to verify
that the data received by or sent from the ADM1168 is correct.
The PEC byte is an optional byte sent after that last data byte has
been written to or read from the ADM1168. The protocol is the
same as a block read for Step 1 to Step 12 and then proceeds as
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
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 ACK on SDA.
The master sends a command code that tells the slave
device to expect a block read. The ADM1168 command
code for a block read is 0xFD (1111 1101).
The slave asserts ACK on SDA.
The master asserts a repeat start condition on SDA.
The master sends the 7-bit slave address followed by the
read bit (high).
The slave asserts ACK on SDA.
The ADM1168 sends a byte-count data byte that tells the
master how many data bytes to expect. The ADM1168
always returns 32 data bytes (0x20), which is the maximum
allowed by the SMBus 1.1 specification.
The master asserts ACK on SDA.
The master receives 32 data bytes.
The master asserts ACK on SDA after each data byte.
The master asserts a stop condition on SDA to end the
follows:
13. The ADM1168 issues a PEC byte to the master. The master
checks the PEC byte and issues another block read, if the
PEC byte is incorrect.
14. A no acknowledge (NACK) is generated after the PEC byte
to signal the end of the read.
15. The master asserts a stop condition on SDA to end the
transaction.
Note that the PEC byte is calculated using CRC-8. The frame
check sequence (FCS) conforms to CRC-8 by the polynomial
C ( x ) = x 8 + x 2 + x 1 + 1
See the SMBus 1.1 specification for details.
An example of a block read with the optional PEC byte is shown
1
2
3
4
5 6
7
8
9
10
11
12
S ADDRESS W A COMMAND 0xFD A S
ADDRESS R A COUNT A
DATA A
SLAVE
(BLOCK READ)
SLAVE BYTE
1
13
Figure 35. Block Read from the EEPROM or RAM
DATA
32
A
P
1
2
3
4
5 6
7
8
9
10
11
12
W A COMMAND 0xFD A S ADDRESS R A COUNT A
S
SLAVE
ADDRESS
(BLOCK READ)
SLAVE BYTE
DATA
1
A
13 14 15
DATA
32
A PEC A P
Figure 36. Block Read from the EEPROM or RAM with PEC
Rev. A | Page 26 of 28
相关PDF资料 |
PDF描述 |
|---|---|
| ES1000-NO.2-B9-X-COIL | HEAT SHRINK TUBING |
| 562A043-12-0 | BOOT MOLDED |
| VERSAFIT-3X-3/8-9-SP | HEAT SHRINK TUBING |
| 8S14-50FR | BOOT MOLDED |
| 0982661037 | CBL 33POS 0.5MM JMPR TYPE A 4" |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1168ASTZ-RL7 | 功能描述:IC SEQUENCER/SUPERVISOR 32LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Super Sequencer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| ADM1169ACPZ | 功能描述:IC SEQUENCER/SUPERVISOR 40LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Super Sequencer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| ADM1169ACPZ-RL7 | 功能描述:IC SEQUENCER/SUPERVISOR 40LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Super Sequencer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| ADM1169ARTZ | 制造商:Analog Devices 功能描述:SUPER SEQUENCER W/ BLACK BOX - Tape and Reel |
| ADM1169ASTZ | 功能描述:IC SEQUENCER/SUPERVISOR 32LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Super Sequencer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。