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參數(shù)資料
| 型號： | PCA9500D,112 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 22/26頁 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16SOIC |
| 標準包裝： | 48 |
| 接口： | I²C，SM 總線 |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 無 |
| 頻率 - 時鐘： | 400kHz |
| 電源電壓： | 2.5 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 16-SO |
| 包裝： | 管件 |
| 包括： | EEPROM，POR |
| 產(chǎn)品目錄頁面： | 824 (CN2011-ZH PDF) |
| 其它名稱： | 568-1024-5 935271533112 PCA9500D |
PCA9500_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 15 April 2009
5 of 26
NXP Semiconductors
PCA9500
8-bit I2C-bus and SMBus I/O port with 2-kbit EEPROM
7.
Functional description
Refer also to Figure 1 “Block diagram of PCA9500”.
7.1 Device addressing
Following a START condition, the bus master must output the address of the slave it is
accessing. The address of the PCA9500 is shown in Figure 6. Internal pull-up resistors
are incorporated on the hardware selectable address pins.
The last bit of the address byte denes the operation to be performed. When set to logic 1
a read is selected, while a logic 0 selects a write operation.
7.2 Control register
The PCA9500 contains a single 8-bit register called the Control register, which can be
written and read via the I2C-bus. This register is sent after a successful acknowledgment
of the slave address. It contains the I/O operation information.
Fig 5.
Simplied schematic diagram of each I/O
002aae588
write pulse
read pulse
D
CI
S
FF
Q
power-on reset
data from shift register
100
A
VDD
IO0 to IO7
VSS
D
CI
S
FF
Q
data to shift register
to interrupt logic
a. I/O expander
b. Memory
Fig 6.
PCA9500 slave addresses
002aae589
0
1
0
A2
A1
A0 R/W
fixed
slave address
hardware
programmable
002aae590
1
0
1
0
A2
A1
A0 R/W
fixed
slave address
hardware
programmable
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9500PW | 功能描述:接口-I/O擴展器 I/O EXPANDER W/2K EE 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 |
| PCA9500PW,112 | 功能描述:接口-I/O擴展器 I/O EXPANDER W/2K EE 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 |
| PCA9500PW,118 | 功能描述:接口-I/O擴展器 8BIT I2C FMQB GPIO PU2K EEPROM 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 |
| PCA9500PW,118-CUT TAPE | 制造商:NXP 功能描述:PCA9500 Series 8-Bit I2C and SMBus I/O Port with 2-kbit EEPROM - TSSOP - 16 |
| PCA9500PW112 | 制造商:NXP Semiconductors 功能描述:IC I/O EXPANDER 8BIT 400KHZ TSSOP-16 |
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