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参数资料
| 型号： | MAX7325AEG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/17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 |
STANDBY CURRENT
vs. TEMPERATURE
TEMPERATURE (
°C)
STANDBY
CURRENT
(
A)
MAX7325
toc01
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
V+ = +3.3V
V+ = +5.0V
V+ = +2.5V
V+ = +1.71V
fSCL = 0kHz
SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (
°C)
SUPPLY
CURRENT
(
A)
MAX7325
toc02
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
10
20
30
40
50
60
V+ = +3.3V
V+ = +5.0V
V+ = +2.5V
V+ = +1.71V
fSCL = 400kHz
4
Maxim Integrated
MAX7325
I2C Port Expander with 8 Push-Pull
and 8 Open-Drain I/Os
OUTPUT VOLTAGE LOW
vs. TEMPERATURE
TEMPERATURE (
°C)
OUTPUT
VOLTAGE
LOW
(V)
MAX7325
toc03
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
0.05
0.10
0.15
0.20
0.25
V+ = +3.3V
ISINK = 15mA
V+ = +5.0V
ISINK = 20mA
V+ = +2.5V
ISINK = 10mA
V+ = +1.71V
ISINK = 5mA
OUTPUT VOLTAGE HIGH
vs. TEMPERATURE
TEMPERATURE (
°C)
OUTPUT
VOLTAGE
HIGH
(V)
MAX7325
toc04
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
1
2
3
4
5
6
V+ = +3.3V
ISOURCE = 5mA
V+ = +5.0V
ISOURCE = 10mA
V+ = +2.5V ISOURCE = 5mA
V+ = +1.71V ISOURCE = 2mA
Pin Description
PIN
QSOP
TQFN
NAME
FUNCTION
122
INT
Interrupt Output, Active Low. INT is an open-drain output.
223
RST
Reset Input, Active Low. Drive RST low to clear the 2-wire interface.
3, 21
24, 18
AD2, AD0
Address Inputs. Select device slave address with AD0 and AD2. Connect AD0 and AD2
to either GND, V+, SCL, or SDA to give four logic combinations (see Tables 2 and 3).
4–11
1–8
P0–P7
Open-Drain I/O Ports
12
9
GND
Ground
13–20
10–17
O8–O15
Output Ports. O8–O15 are push-pull outputs rated at 20mA.
22
19
SCL
I2C-Compatible Serial-Clock Input
23
20
SDA
I2C-Compatible Serial-Data I/O
24
21
V+
Positive Supply Voltage. Bypass V+ to GND with a ceramic capacitor of at least 0.047F.
—
EP
Exposed Paddle (TQFN Only). Connect exposed pad to GND.
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
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