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參數(shù)資料
型號： PCA9575PW1,118
廠商： NXP Semiconductors
文件頁數(shù)： 10/38頁
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 16B 24TSSOP
標準包裝： 1
接口： I²C，SM 總線
輸入/輸出數(shù)： 16
中斷輸出： 是
頻率 - 時鐘： 400kHz
電源電壓： 1.1 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 24-TSSOP
包裝： 標準包裝
包括： POR
其它名稱： 568-9538-6
PCA9575_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 9 November 2009
18 of 38
NXP Semiconductors
PCA9575
16-bit I2C-bus and SMBus, level translating, low voltage GPIO
7.6.15 Register 14 - Interrupt status port 0 register
This register is read-only. It is used to identify the source of interrupt.
Remark: If the interrupts are masked, this register will return all zeros.
7.6.16 Register 15 - Interrupt status port 1 register
This register is read-only. It is used to identify the source of interrupt.
Remark: If the interrupts are masked, this register will return all zeros.
7.7 Power-on reset
When power is applied to VDD, an internal Power-On Reset (POR) holds the PCA9575 in
a reset condition until VDD has reached VPOR. At that point, the reset condition is released
and the PCA9575 registers and state machine will initialize to their default states. The
power-on reset typically completes the reset and enables the part by the time the power
supply is above VPOR. However, when it is required to reset the part by lowering the power
supply, it is necessary to lower it below 0.2 V.
7.8 RESET input
A reset can be accomplished by holding the RESET pin LOW for a minimum of tw(rst). The
PCA9575 registers and I2C-bus state machine will be held in their default state until the
RESET input is once again HIGH.
Table 18.
Register 14 - Interrupt status port 0 register (address 0Eh) bit description
Legend: * default value.
Bit
Symbol
Access
Value
Description
7
S0.7
read only
0*
identies source of interrupt
6
S0.6
read only
0*
5
S0.5
read only
0*
4
S0.4
read only
0*
3
S0.3
read only
0*
2
S0.2
read only
0*
1
S0.1
read only
0*
0
S0.0
read only
0*
Table 19.
Register 15 - Interrupt status port 1 register (address 0Fh) bit description
Legend: * default value.
Bit
Symbol
Access
Value
Description
7
S1.7
read only
0*
identies source of interrupt
6
S1.6
read only
0*
5
S1.5
read only
0*
4
S1.4
read only
0*
3
S1.3
read only
0*
2
S1.2
read only
0*
1
S1.1
read only
0*
0
S1.0
read only
0*
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PCA9575PW2,118 功能描述:I2C 接口集成電路 I2C Bus/ SMBus Level Translating 28-Pin RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16
PCA9575PW2118 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
PCA9600D 功能描述:緩沖器和線路驅(qū)動器 FM+ BUS BUFFER RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
PCA9600D,112 功能描述:緩沖器和線路驅(qū)動器 FM+ BUS BUFFER RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
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