- 您现在的位置：买卖IC网 > PDF目录3774 > MAX7325AEG+ (Maxim Integrated Products)IC I/O EXPANDER I2C 8B 24QSOP PDF资料下载
参数资料
| 型号： | MAX7325AEG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 24QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 接口： | I²C |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 1.71 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 管件 |
| 包括： | POR |
MAX7325
I2C Port Expander with 8 Push-Pull
and 8 Open-Drain I/Os
13
Maxim Integrated
SCL
MAX7325 SLAVE ADDRESS
S1
1
0
A
P
1
PORTS
INT OUTPUT
R/W
PORT SNAPSHOT
tIV
tPH
tIR
A
D0
D1
D2
D3
D4
D5
D6
D7
PORT SNAPSHOT
tPSU
tIP
D7
D6
D5
D4
D3
D2
D1
D0
N
PORT SNAPSHOT
INT REMAINS HIGH UNTIL STOP CONDITION
I0
I1
I2
I3
I4
I5
I6
I7
F0
F1
F2
F3
F4
F5
F6
F7
PORT INPUTS
INTERRUPT FLAGS
S = START CONDITION
SHADED = SLAVE TRANSMISSION
P = STOP CONDITION
N = NOT ACKNOWLEDGE
ACKNOWLEDGE
FROM MASTER
ACKNOWLEDGE
FROM MAX7325
Figure 7. Reading Open-Drain Ports of the MAX7325 (2 Data Bytes)
SCL
MAX7325 SLAVE ADDRESS
SA
P
1
ACKNOWLEDGE FROM MAX7325
PORT SNAPSHOT DATA
PORT SNAPSHOT TAKEN
A
P0
P1
P2
P3
DATA 1
P4
P5
P6
P7
D0
D1
D2
D3
D4
D5
D6
D7
PORT SNAPSHOT TAKEN
ACKNOWLEDGE
FROM MASTER
R/W
Figure 8. Reading Push-Pull Ports of MAX7325
acknowledge. The new snapshot data is the current
port data transmitted to the master, and therefore, port
changes occuring during the transmission are detect-
ed. INT remains high until the STOP condition.
The master can read 2 bytes from the open-drain ports
of the MAX7325 and subsequently issues a STOP con-
dition (Figure 7). In this case, the MAX7325 transmits
the current port data, followed by the change flags. The
change flags are then cleared, and transition detection
is reset. INT goes high (high impedance if an external
pullup resistor is not fitted) during the slave acknowl-
edge. The new snapshot data is the current port data
transmitted to the master, and therefore, port changes
occuring during the transmission are detected. INT
remains high until the STOP condition.
A read from the push-pull ports of the MAX7325 starts
with the master transmitting the group’s slave address
with the R/W bit set high. The MAX7325 acknowledges
the slave address, and samples the logic state of the
output ports during the acknowledge bit. The master can
read one or more bytes from the push-pull ports of the
MAX7325 and then issues a STOP condition (Figure 8).
The MAX7325 transmits the current port data, read
back from the actual port outputs (not the port output
latches) during the acknowledge. If a port is forced to a
logic state other than its programmed state, the read-
back reflects this. If driving a capacitive load, the read-
back port level verification algorithms may need to take
the RC rise/fall time into account.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX7324AEG+ | IC I/O EXPANDER I2C 8B 24QSOP |
| MAX7310ATE+ | IC I/O EXPANDER I2C 8B 16TQFN |
| MAX7329AWE+ | IC I/O EXPANDER I2C 8B 16SOIC |
| MAX7322AEE+ | IC I/O EXPANDER I2C 4B 16QSOP |
| MAX7310AUE+ | IC I/O EXPANDER I2C 8B 16TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7325AEG/V+ | 功能描述:接口-I/O扩展器 I2C Port Expander with 8 Push-Pull Outputs and 8 Open-Drain I/Os RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7325AEG/V+T | 功能描述:接口-I/O扩展器 I2C Port Expander with 8 Push-Pull Outputs and 8 Open-Drain I/Os RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7325AEG+ | 功能描述:接口-I/O扩展器 I2C Port Expander w/8 P-P Out & 8 I/O RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7325AEG+T | 功能描述:接口-I/O扩展器 I2C Port Expander w/8 P-P Out & 8 I/O RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7325AEG-T | 功能描述:接口-I/O扩展器 I2C Port Expander w/8 P-P Out & 8 I/O RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。