参数资料
型号: MAX6889ETJ+T
厂商: Maxim Integrated Products
文件页数: 32/40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)
EEPROM-Programmable, Octal/Hex/Quad,
Power-Supply Sequencers/Supervisors
data transfer, the bus master should reattempt communi-
cation at a later time. The MAX6889/MAX6890/
MAX6891 generate a NACK after the command byte
during a software reboot, while writing to the EEPROM,
or when receiving an illegal memory address.
Slave Address
SA7 through SA4 represent the standard 2-wire inter-
face address (1010) for devices with EEPROM. SA3
and SA2 correspond to the A1 and A0 address inputs
of the MAX6889/MAX6890/MAX6891 (hardwired as
logic-low or logic-high). SA0 is a read/write flag bit (0 =
write, 1 = read).
The A0 and A1 address inputs allow up to four
MAX6889/MAX6890 to connect to one bus, while the
A0 address input allows up to two MAX6891s to con-
START
CONDITION
nect to one bus. Connect A0 and A1 to GND or to the
2-wire serial-interface power supply (see Figure 7).
The MAX6889/MAX6890 slave address conforms to the
following table:
SA7 (MSB) SA6 SA5 SA4 SA3 SA2 SA1 SA0 (LSB)
1 0 1 0 A1 A0 X R/ W
X = Don’t Care
The MAX6891 slave address conforms to the following
table:
SA7 (MSB) SA6 SA5 SA4 SA3 SA2 SA1 SA0 (LSB)
1 0 1 0 0 A0 X R/ W
X = Don’t Care
CLOCK PULSE FOR ACKNOWLEDGE
SCL
1
2
8
9
SDA BY
TRANSMITTER
S
SDA BY
RECEIVER
Figure 6. Acknowledge
SDA
1
0
1
0
A1
A0
X
R/W
ACK
START
MSB
LSB
SCL
Figure 7. Slave Address
32
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