PCA9501BS Datasheet PDF - NXP Semiconductors
| Part Number | PCA9501BS | |
| Description | 8-bit I2C and SMBus I/O port with interrupt/ 2-kbit EEPROM and 6 address pins | |
| Manufacturers | NXP Semiconductors | |
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There is a preview and PCA9501BS download ( pdf file ) link at the bottom of this page. Total 22 Pages | ||
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INTEGRATED CIRCUITS
PCA9501
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
Product data
Supersedes data of 2002 Sep 27
2003 Sep 12
Philips
Semiconductors
|
| |
 
Philips Semiconductors
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
Product data
PCA9501
FUNCTIONAL DESCRIPTION
WRITE PULSE
DATA FROM
SHIFT REGISTER
POWER-ON
RESET
DQ
FF
CI
S
100 µA
VDD
I/O0 TO I/O7
VSS
READ PULSE
DATA TO
SHIFT REGISTER
DQ
FF
CI
S
Figure 4. Simplified schematic diagram of each I/O
TO INTERRUPT LOGIC
SW00788
DEVICE ADDRESSING
Following a START condition the bus master must output the address of the slave it is accessing. The address of the PCA9501 is shown in
Figure 5. Internal pullup resistors are incorporated on the hardware selectable address pins.
SLAVE ADDRESS
SLAVE ADDRESS
0 A5 A4 A3 A2 A1 A0 R/W
1 A5 A4 A3 A2 A1 A0 R/W
(a) I/O EXPANDER
(b) MEMORY
FIXED
HARDWARE
PROGRAMMABLE
a.
FIXED
HARDWARE
PROGRAMMABLE
b.
Figure 5. PCA9501 slave addresses
SW02006
The last bit of the address byte defines the operation to be performed. When set to logic 1 a read is selected while a logic 0 selects a write
operation.
CONTROL REGISTER
The PCA9501 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.
2003 Sep 12
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for PCA9501BS electronic component. |
| Information | Total 22 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ PCA9501BS.PDF Datasheet ] | |
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| Part Number | Description | MFRS |
| PCA9501BS | The function is 8-bit I2C and SMBus I/O port with interrupt/ 2-kbit EEPROM and 6 address pins. NXP Semiconductors | |
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