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參數(shù)資料
| 型號： | MAX7323AEE+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/17頁 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 4B 16QSOP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 100 |
| 接口： | I²C |
| 輸入/輸出數(shù)： | 4 |
| 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： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-QSOP |
| 包裝： | 管件 |
| 包括： | POR |
Driving LED Loads
When driving LEDs from one of the four output ports
(O0, O1, O6, or O7), a resistor must be connected in
series with the LED to limit the LED current to no more
than 20mA. Connect the LED cathode to the MAX7323
port, and the LED anode to V+ through the series cur-
rent-limiting resistor, RLED. Set the port output low to
illuminate the LED. Choose the resistor value according
to the following formula:
RLED = (VSUPPLY - VLED - VOL) / ILED
where:
RLED is the resistance of the resistor in series with the
LED (
Ω).
VSUPPLY is the supply voltage used to drive the LED (V).
VLED is the forward voltage of the LED (V).
VOL is the output-low voltage of the MAX7323 when
sinking ILED (V).
ILED is the desired operating current of the LED (A).
For example, to operate a 2.2V red LED at 10mA from a
+5V supply:
RLED = (5 - 2.2 - 0.07) / 0.010 = 270
Ω.
MAX7323
I2C Port Expander with 4 Push-Pull Outputs
and 4 Open-Drain I/Os
______________________________________________________________________________________
13
OUTPUT
V+
PORTS
O0, O1, O6, O7
MAX7323
Figure 9. MAX7323 Push-Pull Output Port Structure
PORTS
P2–P5
PULLUP
ENABLE
INPUT
OUTPUT
40k
Ω
G
S
D
MAX7323
V+
Figure 10. MAX7323 I/O Port Structure
I2C
CONTROL
O7
P4
P5
O6
P3
P2
O1
O0
INT
I/O
PORTS
POWER-
ON RESET
INPUT
FILTER
RST
SDA
SCL
AD2
AD0
MAX7323
Functional Diagram
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|---|---|
| MAX7323AEE+ | 功能描述:接口-I/O擴展器 I2C Port Expander w/4 P-P Out & 4 I/O 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 |
| MAX7323AEE+T | 功能描述:接口-I/O擴展器 I2C Port Expander w/4 P-P Out & 4 I/O 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 |
| MAX7323AEE-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 |
| MAX7323ATE | 功能描述:接口-I/O擴展器 I2C Port Expander w/4 P-P Out & 4 I/O 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 |
| MAX7323ATE+ | 功能描述:接口-I/O擴展器 I2C Port Expander w/4 P-P Out & 4 I/O 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 |
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