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参数资料
| 型号： | MAX6889ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 30/40页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCE/SUPERVISOR 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 序列发生器 |
| 监视电压数目： | 8 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 可调节/可选择 |
| 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-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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EEPROM-Programmable, Octal/Hex/Quad,
Power-Supply Sequencers/Supervisors
reboot. After V CC exceeds UVLO, an internal 1MHz
clock starts after a 5μs delay, and data transfer begins.
Data transfer disables access to the configuration regis-
ters and EEPROM. The data transfer from EEPROM to
configuration registers takes 3ms (max). Read configu-
ration EEPROM data at any time after power-up or soft-
ware reboot. Write commands to the configuration
EEPROM are allowed at any time after power-up or soft-
ware reboot, unless the configuration lock bit is set (see
Table 22). The maximum cycle time to write a single
byte is 11ms (max).
00h
REGISTER BANK
User EEPROM
The 512-bit, user-EEPROM addresses range from 40h to
7Fh (see Figure 2). Store software revision data, board
revision data, and other data in these registers. The max-
imum cycle time to write a single byte is 11ms (max).
Configuration Register Bank and EEPROM
The configuration registers can be directly modified
through the serial interface without modifying the
EEPROM, after the power-up procedure terminates and
the configuration EEPROM data has been loaded into the
configuration register bank. Use the write byte or block
write protocols to write directly to the configuration regis-
ters. Changes to the configuration registers take effect
immediately and are lost upon power removal.
At device power-up, the register bank loads configura-
tion data from the EEPROM. Configuration data may be
directly altered in the register bank during application
37h
40h
RESERVED
development, allowing maximum flexibility. Transfer the
new configuration data byte-by-byte to the configura-
tion EEPROM with the write byte protocol. The next
device power-up or software reboot automatically loads
7Fh
80h
AEh
USER EEPROM
CONFIGURATION
EEPROM
the new configuration.
SMBus/I 2 C-Compatible Serial Interface
The MAX6889/MAX6890/MAX6891 feature an I 2 C/SMBus-
compatible 2-wire serial interface consisting of a serial
data line (SDA) and a serial clock line (SCL). SDA and
SCL facilitate bidirectional communication between the
MAX6889/MAX6890/MAX6891 and the master device at
clock rates up to 400kHz. Figure 3 shows the 2-wire inter-
face timing diagram. The MAX6889/MAX6890/MAX6891
are transmit/receive slave-only devices, relying upon a
Figure 2. Memory Map
SDA
t SU:DAT
t SU:STA
t BUF
t LOW
t HD:DAT
t HD:STA
t SU:STO
SCL
t HIGH
t HD:STA
t R
t F
START
CONDITION
REPEATED START
CONDITION
STOP
CONDITION
START
CONDITION
Figure 3. Serial-Interface Timing Details
30
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6889EVCMAXQ | 功能描述:监控电路 EEPROM-Programmable Octal/Hex/Quad Power-Supply Sequencers/Supervisors RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6889EVCMAXQU | 功能描述:监控电路 Evaluation Kit/Evaluation System for the MAX6889 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6889EVCMODU | 功能描述:监控电路 EEPROM-Programmable Octal/Hex/Quad Power-Supply Sequencers/Supervisors RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6889EVKIT | 功能描述:监控电路 Programmers, Development Systems RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX688CPA | 功能描述:低压差稳压器 - LDO High-Accuracy LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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