PCA9561D-T NXP Semiconductors, PCA9561D-T Datasheet - Page 6

• Manufacturer Part Number: PCA9561D-T
• Description: EEPROM QUAD 6-BT MULTIPLEX I2C EEPROM
• Manufacturer: NXP Semiconductors

Specifications of PCA9561D-T

• Product Category: EEPROM
• Rohs: yes
• Mounting Style: SMD/SMT
• Package / Case: SOT-163
• Factory Pack Quantity: 2000
• Part # Aliases: PCA9561D,118

NXP Semiconductors
Table 5.
All other combinations are reserved.
Table 6.
Table 7.
PCA9561
Product data sheet
Write
Read
Default
Write
Read
Default
D7
1
1
1
1
1
1
1
1
1
D6
1
1
1
1
1
1
1
1
1
Commands register
EEPROM byte 0 register
EEPROM byte 1 register
D7
D7
X
X
0
0
0
0
D5
1
1
1
1
1
1
1
1
1
6.3 Register description
Command value
D4
1
1
1
1
1
1
1
1
1
If the Control register byte is an EEPROM address, the next byte will be programmed into
that EEPROM address on the following STOP condition, if 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 fourth 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 register
code was FFh, the MUX_IN values are sent with the two MSBs padded with zeros as
shown below. If the command register code is 00h, then the non-volatile register 0 is sent.
If the command register code is 01h, then the non-volatile register 1 is sent. If the
command register code is 02h, then the non-volatile register 2 is sent. If the command
register code is 03h, then the non-volatile register 3 is sent.
D6
D6
X
X
0
0
0
0
D3
X
0
0
1
1
0
0
1
1
D2
0
1
0
1
0
1
0
1
X
EEPROM 0
EEPROM 0
EEPROM 1
EEPROM 1
data F
data F
data F
data F
All information provided in this document is subject to legal disclaimers.
D5
D5
0
0
D1
0
0
0
0
0
0
0
0
1
Rev. 4 — 6 November 2012
D0
0
0
0
0
1
1
1
1
0
EEPROM 0
EEPROM 0
EEPROM 1
EEPROM 1
data E
data E
data E
data E
D4
D4
0
0
Quad 6-bit multiplexed I
MUX_SELECT = 1
EEPROM byte 0
EEPROM byte 1
EEPROM byte 2
EEPROM byte 3
EEPROM 0
EEPROM 0
EEPROM 1
EEPROM 1
MUX_IN
MUX_IN
MUX_IN
MUX_IN
MUX_IN
data D
data D
data D
data D
D3
D3
0
0
Command function
EEPROM 0
EEPROM 0
EEPROM 1
EEPROM 1
data C
data C
data C
data C
D2
D2
0
0
2
C-bus EEPROM DIP switch
EEPROM 0
EEPROM 0
EEPROM 1
EEPROM 1
MUX_SELECT = 0
EEPROM byte 0
EEPROM byte 1
EEPROM byte 2
EEPROM byte 3
EEPROM byte 0
EEPROM byte 1
EEPROM byte 2
EEPROM byte 3
data B
data B
data B
data B
D1
D1
0
0
PCA9561
MUX_IN
© NXP B.V. 2012. All rights reserved.
EEPROM 0
EEPROM 0
EEPROM 1
EEPROM 1
data A
data A
data A
data A
D0
D0
0
0
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