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| 型號(hào)： | PCA9506 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 40-bit I2C-bus I/O port with RESET, OE, and INT |
| 中文描述： | 40位I2C總線的I / O端口復(fù)位，光電，和INT |
| 文件頁數(shù)： | 7/30頁 |
| 文件大?。?/td> | 145K |
| 代理商： | PCA9506 |
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9397 750 14939
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 14 February 2006
7 of 30
Philips Semiconductors
PCA9506
40-bit I
2
C-bus I/O port with RESET, OE, and INT
[1]
HVQFN package die supply ground is connected to both V
SS
pins and exposed center pad. V
SS
pins must
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
printed-circuit board in the thermal pad region.
7.
Functional description
Refer to
Figure 1 “Block diagram of PCA9506”
and
Figure 2 “Simplified schematic of
IO0_0 to IO4_7”
.
7.1 Device address
Following a START condition, the bus master must send the address of the slave it is
accessing and the operation it wants to perform (read or write). The address of the
PCA9506 is shown in
Figure 5
. Slave address pins A2, A1, and A0 choose 1 of 8 slave
addresses and need to be connected to V
DD
(1) or V
SS
(0). To conserve power, no internal
pull-up resistors are incorporated on A2, A1, and A0.
The last bit of the first byte defines the operation to be performed. When set to logic 1 a
read is selected, while a logic 0 selects a write operation.
7.2 Command register
Following the successful acknowledgement of the slave address + R/W bit, the bus master
will send a byte to the PCA9506, which will be stored in the Command register.
OE
INT
RESET
30
55
56
23
48
49
I
O
I
active LOW output enable input
active LOW interrupt output
active LOW reset input
Table 2:
Symbol
Pin description
…continued
Pin
TSSOP56
Type
Description
HVQFN56
Fig 5.
PCA9506 address
002aab494
0
1
0
0
A2
A1
A0 R/W
fixed
slave address
programmable
Fig 6.
Command register
002aab495
1
0
0
0
0
0
0
0
AI
D5
D4
D3
D2
D1
D0
Auto-Increment
register number
default at power-up
or after RESET
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| PCA9506BS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:40-bit I2C-bus I/O port with RESET, OE and INT |
| PCA9506BS,118 | 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 |
| PCA9506BS,118-CUT TAPE | 制造商:NXP 功能描述:PCA9506 Series 40-Bit I2C-Bus I/O Port with RESET OE and INT - HVQFN - 56 |
| PCA9506DGG | 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 |
| PCA9506DGG,512 | 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 |
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