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参数资料
| 型号： | ADM1068ASTZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 21/24页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR/SEQUENCER 32-LQFP |
| 标准包装： | 1 |
| 系列： | Super Sequencer® |
| 类型： | 序列发生器 |
| 监视电压数目： | 8 |
| 输出： | 可编程 |
| 电压 - 阀值： | 8 种可选阀值组合 |
| 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 |
| 产品目录页面： | 788 (CN2011-ZH PDF) |
| 配用： | EVAL-ADM1068LQEBZ-ND - BOARD EVALUATION FOR ADM1068LQ |
ADM1068
1
9
1
9
SCL
SDA
1
0
0
0
1
A1
A0 R/W
D7
D6
D5
D4
D3
D2
D1
D0
START BY
MASTER
ACK. BY
SLAVE
ACK. BY
MASTER
SCL
(CONTINUED)
1
FRAME 1
SLAVE ADDRESS
9
1
FRAME 2
DATA BYTE
9
SDA
(CONTINUED)
D7
D6
D5
D4 D3 D2
FRAME 3
DATA BYTE
D1
D0
ACK. BY
MASTER
D7
D6
D5
D4 D3 D2
FRAME N
DATA BYTE
D1
D0
NO ACK.
STOP
BY
MASTER
Figure 26. General SMBus Read Timing Diagram
SCL
t LO W
t R
t F
t HD; STA
t HD; STA
t HD; DAT
t SU; DAT
t HI G H
t SU; STA
t SU; STO
SDA
t BUF
P
S
S
P
Figure 27. Serial Bus Timing Diagram
SMBus PROTOCOLS FOR RAM AND EEPROM
The ADM1068 contains volatile registers (RAM) and nonvolatile
registers (EEPROM). User RAM occupies Address 0x00 to
Address 0xDF; the EEPROM occupies Address 0xF800 to
The ADM1068 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:
Address 0xFBFF.
Data can be written to and read from both the RAM and the
EEPROM as single data bytes. Data can be written only to
unprogrammed EEPROM locations. To write new data to 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.
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 ACK on SDA.
The master asserts a stop condition on SDA and the
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
transaction ends.
In the ADM1068, the send byte protocol is used for two
purposes:
? To write a register address to the RAM for a subsequent
single byte read from the same address, or for a block read or
types of read and write operations. The following abbreviations
1
2
3
4
5
6
? S = Start
S
SLAVE
ADDRESS
W
A
RAM
ADDRESS
(0x00 TO 0xDF)
A
P
?
P = Stop
Figure 28. Setting a RAM Address for Subsequent Read
?
?
?
?
R = Read
W = Write
A = Acknowledge
A = No acknowledge
?
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.
Rev. C | Page 21 of 24
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| ADM1068ASTZ-REEL7 | 功能描述:IC SEQUENCER/SUPERVISOR 32LQFP 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 |
| ADM1069 | 制造商:AD 制造商全称:Analog Devices 功能描述:SUPER SEQUENCER-TM WITH MARGINING CONTROL AND AUXILIARY ADC INPUTS |
| ADM1069ACP | 制造商:Analog Devices 功能描述:FULL FEATURED MULTI POWER SUPPLY MARGINING SEQUENCER WITH LO - Bulk |
| ADM1069ACP-REEL | 制造商:AD 制造商全称:Analog Devices 功能描述:SUPER SEQUENCER-TM WITH MARGINING CONTROL AND AUXILIARY ADC INPUTS |
| ADM1069ACP-REEL7 | 制造商:AD 制造商全称:Analog Devices 功能描述:SUPER SEQUENCER-TM WITH MARGINING CONTROL AND AUXILIARY ADC INPUTS |
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