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參數(shù)資料
| 型號： | PCA9561 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Quad 6-bit multiplexed I2C EEPROM DIP switch |
| 中文描述： | 四6位多路復(fù)用的I2C EEPROM的DIP開關(guān) |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 111K |
| 代理商： | PCA9561 |
Philips Semiconductors
Product data
PCA9561
Quad 6-bit multiplexed I
2
C EEPROM DIP switch
2003 Jun 27
5
REGISTER DESCRIPTION
If the command byte is an EEPROM address, the next byte sent will be programmed into that EEPROM address on the following STOP
condition, if the WP is logic 0. If more than one byte is sent sequentially, the second byte will be written in the other-volatile register, on the
following STOP condition. Up to four bytes can be sent sequentially. If any more data bytes are sent after the second byte, they will not be
acknowledged and no bytes will be written to the non-volatile registers. After a byte is read from or written to the EEPROM, the part
automatically points to the next non-volatile register. If the command code was FFH, the MUX_IN values are sent with the three MSBs padded
with zeroes as shown below. If the command codes was 00H, then the non-volatile register 1 is sent, and if the command code was 01H, then
the non-volatile register 1 is sent.
EEPROM Byte 0 Register
D7
D6
D5
Write
X
X
EEPROM 0
Data F
Data E
Read
0
0
EEPROM 0
Data F
Data E
Default
0
0
0
D4
D3
D2
D1
D0
EEPROM 0
EEPROM 0
Data D
EEPROM 0
Data D
0
EEPROM 0
Data C
EEPROM 0
Data C
0
EEPROM 0
Data B
EEPROM 0
Data B
0
EEPROM 0
Data A
EEPROM 0
Data A
0
EEPROM 0
0
EEPROM Byte 1 Register
D7
X
D6
X
D5
D4
D3
D2
D1
D0
Write
EEPROM 1
Data F
EEPROM 1
Data F
0
EEPROM 1
Data E
EEPROM 1
Data E
0
EEPROM 1
Data D
EEPROM 1
Data D
0
EEPROM 1
Data C
EEPROM 1
Data C
0
EEPROM 1
Data B
EEPROM 1
Data B
0
EEPROM 1
Data A
EEPROM 1
Data A
0
Read
0
0
Default
0
0
EEPROM Byte 2 Register
D7
X
D6
X
D5
D4
D3
D2
D1
D0
Write
EEPROM 2
Data F
EEPROM 2
Data F
0
EEPROM 2
Data E
EEPROM 2
Data E
0
EEPROM 2
Data D
EEPROM 2
Data D
0
EEPROM 2
Data C
EEPROM 2
Data C
0
EEPROM 2
Data B
EEPROM 2
Data B
0
EEPROM 2
Data A
EEPROM 2
Data A
0
Read
0
0
Default
0
0
EEPROM Byte 3 Register
D7
X
D6
X
D5
D4
D3
D2
D1
D0
Write
EEPROM 3
Data F
EEPROM 3
Data F
0
EEPROM 3
Data E
EEPROM 3
Data E
0
EEPROM 3
Data D
EEPROM 3
Data D
0
EEPROM 3
Data C
EEPROM 3
Data C
0
EEPROM 3
Data B
EEPROM 3
Data B
0
EEPROM 3
Data A
EEPROM 3
Data A
0
Read
0
0
Default
0
0
MUX_IN Register
D7
0
D6
0
D5
D4
D3
D2
D1
D0
Read
MUX_IN
Data F
MUX_IN
Data E
MUX_IN
Data D
MUX_IN
Data C
MUX_IN
Data B
MUX_IN
Data A
If the command byte is a MUX command byte, any additional data bytes sent after the MUX command code will not be acknowledged. If the
read/write bit in the address is a logic 1, then a read operation follows and the data sent out depends on the previously stored command code.
The MUX_SELECT_1 pin can function as the over-ride pin as on the PCA9559 if the non-volatile register 1 is left at all 0s.
The NON_MUXED_OUT pin is a latched output. It is latched when MUX_SELECT_0 = 1. It is transparent when the MUX_SELECT_0 = 0. The
data sent out on the NON_MUXED_OUT output is the 6th most significant bit of the non-volatile register. Whether this comes from the
non-volatile register 0 or non-volatile register 1 depends on the command code or the external mux-select pins.
After a valid I
2
C write operation to the EEPROM, the part cannot be addressed via the I
2
C for 3.6 ms. If the part is addressed prior to this time,
the part will not acknowledge its address.
NOTE:
1. To ensure data integrity, the non-volatile register must be internally write protected when V
DD
to the I
2
C-bus is powered down or V
DD
to the
component is dropped below normal operating levels.
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| PCA9561D,112 | 功能描述:多路器開關(guān) IC QUAD 6-BT MULTIPLEX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| PCA9561D,118 | 功能描述:多路器開關(guān) IC QUAD 6-BT MULTIPLEX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| PCA9561D-T | 功能描述:電可擦除可編程只讀存儲器 QUAD 6-BT MULTIPLEX I2C 電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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