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参数资料
| 型号： | ADM1065ACPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 23/28页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER/SUPERVISOR 40-LFCSP |
| 标准包装： | 1 |
| 系列： | Super Sequencer® |
| 类型： | 序列发生器 |
| 监视电压数目： | 10 |
| 输出： | 可编程 |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 40-LFCSP-VQ（6x6） |
| 包装： | 托盘 |
| 配用： | EVAL-ADM1065TQEBZ-ND - BOARD EVALUATION FOR ADM1065TQ |
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ADM1065
SMBus PROTOCOLS FOR RAM AND EEPROM
In the ADM1065, the send byte protocol is used for two purposes:
The ADM1065 contains volatile registers (RAM) and nonvolatile
registers (EEPROM). User RAM occupies Address 0x00 to
Address 0xDF; the EEPROM occupies Address 0xF800 to
?
To write a register address to the RAM for a subsequent
single byte read from the same address or for a block read
Address 0xFBFF.
1
2
3
4
5
6
Data can be written to and read from both the RAM and the
EEPROM as single data bytes. Data can be written only to
S
SLAVE
ADDRESS
W
A
RAM
ADDRESS
(0x00 TO 0xDF)
A
P
unprogrammed EEPROM locations. To write new data to
Figure 29. Setting a RAM Address for Subsequent Read
a programmed location, the location contents must first be
erased. EEPROM erasure cannot be done at the byte level. The
EEPROM is arranged as 32 pages of 32 bytes each, and an entire
page must be erased.
Page erasure is enabled by setting Bit 2 in the UPDCFG register
(Address 0x90) to 1. If this bit is not set, page erasure cannot
occur, even if the command byte (0xFE) is programmed across
the SMBus.
WRITE OPERATIONS
The SMBus specification defines several protocols for different
types of read and write operations. The following abbreviations
?
To erase a page of EEPROM memory. EEPROM memory
can be written to only if it is unprogrammed. Before writing
to one or more EEPROM memory locations that are already
programmed, the page(s) containing those locations must
first be erased. EEPROM memory is erased by writing a
command byte.
The master sends a command code telling the slave device to
erase the page. The ADM1065 command code for a page
erasure is 0xFE (1111 1110). Note that for a page erasure to
take place, the page address must be given in the previous
write word transaction (see the Write Byte/Word section).
In addition, Bit 2 in the UPDCFG register (Address 0x90)
?
S = Start
must be set to 1.
?
?
?
P = Stop
R = Read
W = Write
1
S
2
SLAVE
ADDRESS
W
3
A
4
COMMAND
BYTE
(0xFE)
5
A
6
P
?
?
A = Acknowledge
A = No acknowledge
Figure 30. EEPROM Page Erasure
As soon as the ADM1065 receives the command byte,
The ADM1065 uses the following SMBus write protocols.
Send Byte
In a send byte operation, the master device sends a single
command byte to a slave device, as follows:
page erasure begins. The master device can send a stop
command as soon as it sends the command byte. Page
erasure takes approximately 20 ms. If the ADM1065 is
accessed before erasure is complete, it responds with
a no acknowledge (NACK).
1.
2.
3.
4.
5.
6.
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 acknowledge (ACK)
on SDA.
The master sends a command code.
The slave asserts an ACK on SDA.
The master asserts a stop condition on SDA and
the transaction ends.
Rev. D | Page 23 of 28
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| ADM1065ASUZ | 功能描述:IC SEQUENCER/MONITOR 48-TQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:Super Sequencer® 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| ADM1065ASUZ-RL7 | 功能描述:IC SEQUENCER/MONITOR 48-TQFP 制造商:analog devices inc. 系列:Super Sequencer? 包装:剪切带（CT） 零件状态:在售 类型:序列发生器 受监控电压数:10 输出:可编程 复位:- 复位超时:- 电压 - 阈值:可调节/可选择 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:48-TQFP 供应商器件封装:48-TQFP（7x7） 标准包装:1 |
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