- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3767 > MAX7324AEG+T (Maxim Integrated Products)IC I/O EXPANDER I2C 8B 24QSOP PDF資料下載
參數(shù)資料
| 型號： | MAX7324AEG+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 24QSOP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 接口： | I²C |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 是 |
| 頻率 - 時鐘： | 400kHz |
| 電源電壓： | 1.71 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 24-QSOP |
| 包裝： | 帶卷 (TR) |
| 包括： | POR |
MAX7324
I2C Port Expander with Eight Push-Pull Outputs
and Eight Inputs
12
______________________________________________________________________________________
If a port input data change occurs during the read
sequence, INT is reasserted during the I2C STOP bit.
The MAX7324 does not generate another interrupt dur-
ing a single-byte or multibyte read.
Input-port data is sampled during the preceding I2C
acknowledge bit (the acknowledge bit for the I2C slave
address in the case of a single-byte or 2-byte read).
A multibyte read (more than 2 bytes before the I2C
STOP bit) from the output ports of the MAX7324 repeat-
edly returns the status of the eight output ports, read
back as inputs.
A
single-byte write to the input ports of the MAX7324
sets the interrupt mask register and clears both the
internal transition flags and INT output.
A single-byte write to the output ports of the MAX7324
sets the logic state of all eight ports.
A
multibyte write to the input ports of the MAX7324
sets the interrupt mask register repeatedly.
A multibyte write to the output ports of the MAX7324
repeatedly sets the logic state of all eight ports.
Reading from the MAX7324
A read from the input ports of the MAX7324 starts with
the master transmitting the input ports’ slave address
with the R/W bit set to high. The MAX7324 acknowl-
edges the slave address and samples the ports during
the acknowledge bit. INT deasserts during the slave
address acknowledge.
Typically, the master reads 1 or 2 bytes from the
MAX7324 with each byte being acknowledged by the
master upon reception with the exception of the last
byte.
When the master reads one byte from the open-drain
ports of the MAX7324 and subsequently issues a STOP
condition (Figure 6), the MAX7324 transmits the current
port data, clears the transition flags, and resets the
transition detection. INT deasserts during the slave
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.
SCL
MAX7324 SLAVE ADDRESS
SA
P
1
PORTS
ACKNOWLEDGE
FROM MAX7324
ACKNOWLEDGE
FROM MASTER
PORT SNAPSHOT
tIV
tPH
tIR
A
I0
I1
I2
I3
I4
I5
I6
I7
D0
D1
D2
D3
D4
D5
D6
D7
PORT SNAPSHOT
tPS
tIP
INT OUTPUT
R/W
S = START CONDITION
A = ACKNOWLEDGE
P = STOP CONDITION
INT REMAINS HIGH UNTIL STOP CONDITION
Figure 6. Reading Input Ports of the MAX7324 (1 Data Byte)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ATMEGA88-20MUR | MCU AVR 8K FLASH 20MHZ 32QFN |
| XR16M570IL24-F | IC UART FIFO 16B 24QFN |
| MAX7318AWG+ | IC PORT EXPANDER 16BIT 24SOIC |
| XR16M581IL24-F | IC UART FIFO 16B 24QFN |
| MAX7312AWG+ | IC I/O EXPANDER I2C 16B 24SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7324ATG | 功能描述:接口-I/O擴展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7324ATG+ | 功能描述:接口-I/O擴展器 I2C Port Expander w/8 P-P Out & 8 In RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7324ATG+T | 功能描述:接口-I/O擴展器 I2C Port Expander w/8 P-P Out & 8 In RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7324ATG-T | 功能描述:接口-I/O擴展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7324EVCMAXQU+ | 功能描述:界面開發(fā)工具 Maxim Evaluation System RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
發(fā)布緊急采購，3分鐘左右您將得到回復。