参数资料
型号: ADM1169ACPZ
厂商: Analog Devices Inc
文件页数: 29/36页
文件大小: 0K
描述: IC SEQUENCER/SUPERVISOR 40LFCSP
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: 40-WFQFN 裸露焊盘,CSP
供应商设备封装: 40-LFCSP-WQ(6x6)
包装: 托盘
Data Sheet
ADM1169
1
9
1
9
SCL
SDA
1
0
0
1
1
A1
A0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
START BY
MASTER
FRAME 1
SLAVE ADDRESS
ACK. BY
SLAVE
FRAME 2
COMMAND CODE
ACK. BY
SLAVE
SCL
(CONTINUED)
1
9
1
9
SDA
(CONTINUED)
D7
D6
D5
D4 D3 D2
FRAME 3
DATA BYTE
D1
D0
ACK. BY
SLAVE
D7
D6
D5
D4 D3 D2
FRAME N
DATA BYTE
D1
D0
ACK. BY
SLAVE
STOP
BY
MASTER
Figure 36. General SMBus Write Timing Diagram
1
9
1
9
SCL
SDA
1
0
0
1
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 37. General SMBus Read Timing Diagram
SCL
t LOW
t R
t F
t HD;STA
t HD;STA
t HD;DAT
t SU;DAT
t HIGH
t SU;STA
t SU;STO
SDA
t BUF
P
S
S
P
Figure 38. Serial Bus Timing Diagram
SMBus PROTOCOLS FOR RAM AND EEPROM
The ADM1169 contains volatile registers (RAM) and nonvolatile
registers (EEPROM). User RAM occupies Address 0x00 to
Address 0xDF; and the EEPROM occupies Address 0xF800 to
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.
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.
Rev. A | Page 29 of 36
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