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參數(shù)資料
| 型號： | PCA9502 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit I/O expander with I2C-bus/SPI interface |
| 中文描述： | 8位I / O擴(kuò)展接口與I2C-bus/SPI |
| 文件頁數(shù)： | 4/25頁 |
| 文件大?。?/td> | 125K |
| 代理商： | PCA9502 |
PCA9502_3
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 — 13 October 2006
4 of 25
NXP Semiconductors
PCA9502
8-bit I/O expander with I
2
C-bus/SPI interface
[1]
See
Section 7.1 “Hardware reset, Power-On Reset (POR) and software reset”
7.
Functional description
The device interfaces to a host through either I
2
C-bus or SPI interface (selectable through
I2C/SPI pin), and provides the host with eight programmable GPIO pins.
7.1 Hardware reset, Power-On Reset (POR) and software reset
These three reset methods are identical and will reset the internal registers as indicated in
Table 3
.
Table 3
summarizes the state of registers after reset.
Table 4
summarizes the state of hardware pins after reset.
IRQ
12
O
Interrupt (open-drain, active LOW). Interrupt is enabled when
interrupt sources are enabled in the I/O Interrupt Enable register
(IOIntEna). The interrupt condition is the change of state of the
input pins. An external resistor (1 k
for 3.3 V, 1.5 k
for 2.5 V)
must be connected between this pin and V
DD
.
programmable I/O pin
programmable I/O pin
programmable I/O pin
programmable I/O pin
programmable I/O pin
programmable I/O pin
programmable I/O pin
programmable I/O pin
ground
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
V
SS
13
14
15
16
18
19
20
21
10, 17,
23
center
pad
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
V
SS
-
The center pad on the back side of the HVQFN24 package is
metallic and should be connected to ground on the printed-circuit
board.
Table 2.
Symbol
Pin description
…continued
Pin
Type
Description
Table 3.
Register
I/O direction
Registers after reset
Reset state
all bits cleared
I/O interrupt enable
all bits cleared
I/O control
all bits cleared
Table 4.
Signal
I/Os
IRQ
Signals after reset
Reset state
inputs
HIGH by external pull-up
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| PCA9502BS | 功能描述:接口-I/O擴(kuò)展器 8-BITI/O EXPDR W/I2C-SPI INTRF 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9502BS,128 | 功能描述:接口-I/O擴(kuò)展器 8-BITI/O EXPDR 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9502BS,151 | 功能描述:接口-I/O擴(kuò)展器 I/O EXPANDER I2C 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9502BS,157 | 功能描述:接口-I/O擴(kuò)展器 8-BITI/O EXPDR 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9502BS-F | 功能描述:接口-I/O擴(kuò)展器 8-BITI/O EXPDR W/I2C-SPI INTRF 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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