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參數(shù)資料
| 型號： | MAX7301ATL+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER SPI 28B 40TQFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 接口： | SPI/QSPI?/MICROWIRE? |
| 輸入/輸出數(shù)： | 28 |
| 中斷輸出： | 是 |
| 頻率 - 時鐘： | 26MHz |
| 電源電壓： | 2.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 40-TQFN-EP（6x6） |
| 包裝： | 帶卷 (TR) |
MAX7301
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port I/O Expander
______________________________________________________________________________________
13
Table 4. Power-Up Configuration
REGISTER DATA
REGISTER
FUNCTION
POWER-UP CONDITION
ADDRESS
CODE (HEX)
D7
D6
D5
D4
D3
D2
D1
D0
Port Register
Bits 4 to 31
GPIO Output Low
0x24 to
0x3F
XXX
XX
0
Configuration
Register
Shutdown Enabled
Transition Detection Disabled
0x04
00
X
XX
X
0
Input Mask
Register
All Clear (Masked Off)
0x06
X0
0
00
0
Port
Configuration
P7, P6, P5, P4: GPIO Inputs Without Pullup
0x09
101
01
0
Port
Configuration
P11, P10, P9, P8: GPIO Inputs Without Pullup
0x0A
101
01
0
Port
Configuration
P15, P14, P13, P12: GPIO Inputs Without
Pullup
0x0B
101
01
0
Port
Configuration
P19, P18, P17, P16: GPIO Inputs Without
Pullup
0x0C
101
01
0
Port
Configuration
P23, P22, P21, P20: GPIO Inputs Without
Pullup
0x0D
101
01
0
Port
Configuration
P27, P26, P25, P24: GPIO Inputs Without
Pullup
0x0E
101
01
0
Port
Configuration
P31, P30, P29, P28: GPIO Inputs Without
Pullup
0x0F
101
01
0
X = Unused bits; if read, zero results.
Table 5. Configuration Register Format
REGISTER DATA
FUNCTION
ADDRESS CODE
(HEX)
D7
D6
D5
D4
D3
D2
D1
D0
Configuration Register
0x04
M
0
XXXXXS
Table 6. Shutdown Control (S Data Bit D0) Format
REGISTER DATA
FUNCTION
ADDRESS CODE
(HEX)
D7
D6
D5
D4
D3
D2
D1
D0
Shutdown
0x04
M
0
XXXXX
0
Normal Operation
0x04
M
0
XXXXX
1
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