PCA9535D [NXP]

16-bit I2C and SMBus, low power I/O port with interrupt; 16位I2C和SMBus ,中断与低功率I / O端口
PCA9535D
型号: PCA9535D
厂家: NXP    NXP
描述:

16-bit I2C and SMBus, low power I/O port with interrupt
16位I2C和SMBus ,中断与低功率I / O端口

并行IO端口 微控制器和处理器 外围集成电路 光电二极管
文件: 总19页 (文件大小:141K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
INTEGRATED CIRCUITS  
PCA9535  
16-bit I2C and SMBus, low power I/O port  
with interrupt  
Product data  
2003 Jun 27  
Philips  
Semiconductors  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
2
I C/SMBus applications and was developed to enhance the Philips  
2
family of I C I/O expanders. The improvements include higher drive  
capability, 5 V I/O tolerance, lower supply current, individual I/O  
configuration, and smaller packaging. I/O expanders provide a  
simple solution when additional I/O is needed for ACPI power  
switches, sensors, pushbuttons, LEDs, fans, etc.  
The PCA9535 consist of two 8-bit Configuration (Input or Output  
selection); Input, Output and Polarity inversion (Active HIGH or  
Active LOW operation) registers. The system master can enable the  
I/Os as either inputs or outputs by writing to the I/O configuration  
bits. The data for each Input or Output is kept in the corresponding  
Input or Output register. The polarity of the read register can be  
inverted with the Polarity Inversion Register. All registers can be  
read by the system master. Although pin-to-pin and I C address  
compatible with the PCF8575, software changes are required due to  
the enhancements and are discussed in Application Note AN469.  
FEATURES  
Operating power supply voltage range of 2.3 V-5.5 V  
5 V tolerant I/Os  
Polarity inversion register  
Active LOW interrupt output  
Low stand-by current  
2
The PCA9535 is identical to the PCA9555 except for the removal of  
the internal I/O pull-up resistor which greatly reduces power  
consumption when the I/Os are held LOW.  
Noise filter on SCL/SDA inputs  
No glitch on power-up  
Internal power-on reset  
The PCA9535 open-drain interrupt output is activated when any  
input state differs from its corresponding input port register state and  
is used to indicate to the system master that an input state has  
changed. The power-on reset sets the registers to their default  
values and initializes the device state machine.  
16 I/O pins which default to 16 inputs  
0 to 400 kHz clock frequency  
2
Three hardware pins (A0, A1, A2) vary the fixed I C address and  
2
allow up to eight devices to share the same I C/SMBus. The fixed  
ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V  
2
I C address of the PCA9535 is the same as the PCA9554 allowing  
MM per JESD22-A115, and 1000 V CDM per JESD22-C101  
up to eight of these devices in any combination to share the same  
I C/SMBus.  
Latch-up testing is done to JESDEC Standard JESD78 which  
2
exceeds 100 mA  
Offered in three different packages: SO24, TSSOP24, and  
HVQFN24  
DESCRIPTION  
The PCA9535 is a 24-pin CMOS device that provide 16 bits of  
General Purpose parallel Input/Output (GPIO) expansion for  
ORDERING INFORMATION  
PACKAGES  
TEMPERATURE RANGE  
ORDER CODE  
TOPSIDE MARK  
DRAWING NUMBER  
24-Pin Plastic SO  
24-Pin Plastic TSSOP  
24-Pin Plastic HVQFN  
-40 to +85 °C  
-40 to +85 °C  
-40 to +85 °C  
PCA9535D  
PCA9535PW  
PCA9535BS  
PCA9535D  
PCA9535PW  
9535  
SOT137-1  
SOT355-1  
SOT616-1  
Standard packing quantities and other packing data are available at www.philipslogic.com/packaging.  
2
I C is a trademark of Philips Semiconductors Corporation.  
SMBus as specified by the Smart Battery System Implementers Forum is a derivative of the Philips I C patent.  
2
2
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
PIN CONFIGURATION — SO, TSSOP  
PIN CONFIGURATION —HVQFN  
1
2
3
4
5
6
7
8
9
24 V  
DD  
INT  
A1  
23 SDA  
I/O0.0  
18 A0  
1
2
3
4
5
6
A2  
I/O0.0  
I/O0.1  
I/O0.2  
I/O0.3  
I/O0.4  
I/O0.5  
22 SCL  
I/O1.7  
I/O1.6  
I/O1.5  
I/O1.4  
17  
16  
15  
14  
13  
21 A0  
I/O0.1  
I/O0.2  
I/O0.3  
I/O0.4  
20 I/O1.7  
19 I/O1.6  
18 I/O1.5  
17 I/O1.4  
16 I/O1.3  
15 I/O1.2  
14 I/O1.1  
13 I/O1.0  
I/O0.5  
I/O1.3  
I/O0.6 10  
I/O0.7 11  
V
SS  
12  
TOP VIEW  
Figure 2. Pin configuration — HVQFN  
su01683  
SU01438  
Figure 1. Pin configuration — SO, TSSOP  
PIN DESCRIPTION  
SO,  
TSSOP  
PIN  
HVQFN  
PIN  
NUMBER  
SYMBOL  
FUNCTION  
NUMBER  
1
2
22  
23  
INT  
A1  
Interrupt output (open drain)  
Address input 1  
Address input 2  
I/O0.0 to I/O0.7  
Supply ground  
3
24  
A2  
4-11  
12  
1-8  
9
I/O0.0-I/O0.7  
V
SS  
13-20  
21  
10-17  
18  
I/O1.0-I/O1.7  
A0  
I/O1.0 to I/O1.7  
Address input 0  
Serial clock line  
Serial data line  
22  
19  
SCL  
23  
20  
SDA  
24  
21  
V
Supply voltage  
DD  
3
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
BLOCK DIAGRAM  
I/O1.0  
I/O1.1  
I/O1.2  
I/O1.3  
A0  
INPUT/  
OUTPUT  
PORTS  
A1  
A2  
8-BIT  
I/O1.4  
I/O1.5  
WRITE pulse  
READ pulse  
I/O1.6  
I/O1.7  
2
I C/SMBUS  
CONTROL  
I/O0.0  
I/O0.1  
I/O0.2  
I/O0.3  
SCL  
SDA  
INPUT  
FILTER  
INPUT/  
OUTPUT  
PORTS  
8-BIT  
I/O0.4  
I/O0.5  
WRITE pulse  
READ pulse  
I/O0.6  
I/O0.7  
V
DD  
V
INT  
POWER-ON  
RESET  
V
SS  
LP FILTER  
INT  
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET  
SU01439  
Figure 3. Block diagram  
4
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
SIMPLIFIED SCHEMATIC OF I/Os  
DATA FROM  
SHIFT REGISTER  
OUTPUT PORT  
REGISTER DATA  
CONFIGURATION  
REGISTER  
V
DD  
DATA FROM  
SHIFT REGISTER  
Q
D
Q1  
FF  
D
Q
Q
Q
C
K
WRITE CONFIGURATION  
PULSE  
FF  
I/O PIN  
WRITE PULSE  
C
K
Q2  
OUTPUT  
PORT  
REGISTER  
V
SS  
INPUT PORT  
REGISTER  
INPUT PORT  
REGISTER DATA  
D
Q
FF  
READ PULSE  
Q
C
K
TO INT  
DATA FROM  
SHIFT REGISTER  
POLARITY  
REGISTER DATA  
D
Q
Q
FF  
WRITE  
POLARITY  
PULSE  
C
K
POLARITY  
INVERSION  
REGISTER  
SU01682  
NOTE: At Power-on Reset, all registers return to default values.  
Figure 4. Simplified schematic of I/Os  
I/O port  
When an I/O is configured as an input, FETs Q1 and Q2 are off,  
creating a high impedance input. The input voltage may be raised  
above V to a maximum of 5.5 V.  
DD  
If the I/O is configured as an output, then either Q1 or Q2 is on,  
depending on the state of the Output Port register. Care should be  
exercised if an external voltage is applied to an I/O configured as an  
output because of the low impedance path that exists between the  
pin and either V or V  
.
SS  
DD  
5
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
REGISTERS  
POWER-ON RESET  
When power is applied to V , an internal power-on reset holds the  
DD  
Command Byte  
PCA9535 in a reset state until V has reached V  
the reset condition is released and the PCA9535 registers and  
SMBus state machine will initialize to their default states.  
. At that point,  
DD  
POR  
Command  
Register  
0
1
2
3
4
5
6
7
Input port 0  
Input port 1  
DEVICE ADDRESS  
Output port 0  
slave address  
Output port 1  
Polarity inversion port 0  
Polarity inversion port 1  
Configuration port 0  
Configuration port 1  
0
1
0
0
A2 A1 A0 R/W  
programmable  
fixed  
su01441  
The command byte is the first byte to follow the address byte during  
a write transmission. It is used as a pointer to determine which of the  
following registers will be written or read.  
Figure 5. PCA9535 address  
BUS TRANSACTIONS  
Registers 0 and 1 Input Port Registers  
Writing to the port registers  
Data is transmitted to the PCA9535 by sending the device address  
and setting the least significant bit to a logic 0 (see Figure 5 for  
device address). The command byte is sent after the address and  
determines which register will receive the data following the  
command byte.  
This register is an input-only port. It reflects the incoming logic levels  
of the pins, regardless of whether the pin is defined as an input or an  
output by Register 3. Writes to this register have no effect.  
Registers 2 and 3 Output Port Registers  
The eight registers within the PCA9535 are configured to operate  
as four register pairs. The four pairs are Input Ports, Output Ports,  
Polarity Inversion Ports, and Configuration Ports. After sending data  
to one register, the next data byte will be sent to the other register in  
the pair (see Figures 6 and 7). For example, if the first byte is sent to  
Output Port (register 3), then the next byte will be stored in Output  
Port 0 (register 2). There is no limitation on the number of data bytes  
sent in one write transmission. In this way, each 8-bit register may  
be updated independently of the other registers.  
O0.7  
O0.6  
O0.5  
O0.4  
O0.3  
O0.2  
O0.1  
O0.0  
1
bit  
default  
bit  
1
1
1
1
1
1
1
O1.7  
1
O1.6  
1
O1.5  
1
O1.4  
1
O1.3  
1
O1.2  
1
O1.1  
1
O1.0  
1
default  
This register is an output-only port. It reflects the outgoing logic  
levels of the pins defined as outputs by Register 6 and 7. Bit values  
in this register have no effect on pins defined as inputs. In turn,  
reads from this register reflect the value that is in the flip-flop  
controlling the output selection, NOT the actual pin value.  
Reading the port registers  
In order to read data from the PCA9535, the bus master must first  
send the PCA9535 address with the least significant bit set to a  
logic 0 (see Figure 5 for device address). The command byte is sent  
after the address and determines which register will be accessed.  
After a restart, the device address is sent again but this time, the  
least significant bit is set to a logic 1. Data from the register defined  
by the command byte will then be sent by the PCA9535 (see  
Figures 8 , 9, and 10). Data is clocked into the register on the falling  
edge of the acknowledge clock pulse. After the first byte is read,  
additional bytes may be read but the data will now reflect the  
information in the other register in the pair. For example, if you read  
Input Port 1, then the next byte read would be Input Port 0. There is  
no limitation on the number of data bytes received in one read  
transmission but the final byte received, the bus master must not  
acknowledge the data.  
Registers 4 and 5 Polarity Inversion Registers  
bit  
N0.7 N0.6 N0.5 N0.4 N0.3 N0.2 N0.1 N0.0  
default  
bit  
0
0
0
0
0
0
0
0
N1.7 N1.6 N1.5 N1.4 N1.3 N1.2 N1.1 N1.0  
default  
0
0
0
0
0
0
0
0
This register allows the user to invert the polarity of the Input Port  
register data. If a bit in this register is set (written with ‘1’), the Input  
Port data polarity is inverted. If a bit in this register is cleared (written  
with a ‘0’), the Input Port data polarity is retained.  
Registers 6 and 7 Configuration Registers  
bit  
C0.7 C0.6 C0.5 C0.4 C0.3 C0.2 C0.1 C0.0  
Interrupt Output  
default  
bit  
1
1
1
1
1
1
1
1
The open-drain interrupt output is activated when one of the port  
pins change state and the pin is configured as an input. The  
interrupt is deactivated when the input returns to its previous state or  
the input port register is read (see Figure 9). A pin configured as an  
output cannot cause an interrupt. Since each 8-bit port is read  
independently, the interrupt caused by Port 0 will not be cleared by a  
read of Port 1 or the other way around.  
C1.7 C1.6 C1.5 C1.4 C1.3 C1.2 C1.1 C1.0  
default  
1
1
1
1
1
1
1
1
This register configures the directions of the I/O pins. If a bit in this  
register is set (written with ‘1’), the corresponding port pin is enabled  
as an input with high impedance output driver. If a bit in this register  
is cleared (written with ‘0’), the corresponding port pin is enabled as  
an output. At reset the device’s ports are inputs.  
Note that changing an I/O from an output to an input may cause a  
false interrupt to occur if the state of the pin does not match the  
contents of the Input Port register.  
6
2003 Jun 27  
1
2
3
4
5
6
7
8
0
9
SCL  
SDA  
command byte  
slave address  
data to port 0  
DATA 0  
data to port 1  
DATA 1  
P
0.7  
0.0  
1.7  
1.0  
S
0
1
0
0
A2 A1 A0  
A
0
0
0
0
0
0
1
0
A
A
A
start condition  
R/W acknowledge  
from slave  
acknowledge  
from slave  
acknowledge  
from slave  
WRITE TO  
PORT  
DATA OUT  
FROM PORT 0  
t
pv  
DATA OUT  
FROM PORT 1  
DATA VALID  
t
pv  
SU01442  
Figure 6. WRITE to output port registers  
1
2
3
4
5
6
7
8
0
9
1
2
0
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
SCL  
SDA  
command byte  
slave address  
data to register  
DATA 0  
data to register  
DATA 1  
P
A
MSB  
LSB  
MSB  
LSB  
S
0
1
0
0
A2 A1 A0  
A
0
0
0
0
1
1
0
A
A
start condition  
R/W acknowledge  
from slave  
acknowledge  
from slave  
acknowledge  
from slave  
SU01443  
Figure 7. WRITE to configuration registers  
data from lower  
or upper byte  
of register  
acknowledge  
from slave  
acknowledge  
from slave  
acknowledge  
from slave  
acknowledge  
from master  
slave address  
slave address  
0
1
0
0
A2 A1 A0  
0
0
1
0
A2 A1 A0  
1
COMMAND BYTE  
DATA  
S
0
A
A
S
A
MSB  
LSB  
A
first byte  
R/W  
R/W  
at this moment master-transmitter  
becomes master-receiver and  
slave-receiver becomes  
slave-transmitter  
data from upper  
or lower byte of  
register  
no acknowledge  
from master  
MSB  
LSB NA  
P
DATA  
last byte  
SU01463  
NOTE: Transfer can be stopped at any time by a STOP condition.  
Figure 8. READ from register  
SCL  
SDA  
1
2
3
4
5
6
7
8
9
I0.x  
I1.x  
I0.x  
I1.x  
S
0
1
0
0
A2 A1 A0  
1
A
7
6
5
4
3
2
1
0
A
7
6
5
4
3
2
1
0
A
7
6
5
4
3
2
1
0
A
7
6
5
4
3
2
1
0
1
P
R/W ACKNOWLEDGE  
FROM SLAVE  
ACKNOWLEDGE  
FROM MASTER  
ACKNOWLEDGE  
FROM MASTER  
ACKNOWLEDGE  
FROM MASTER  
NON ACKNOWLEDGE  
FROM MASTER  
READ FROM PORT 0  
DATA INTO PORT 0  
READ FROM PORT 1  
DATA INTO PORT 1  
INT  
t
t
IR  
IV  
SU01464  
NOTES: Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode).  
It is assumed that the command byte has previously been set to 00 (read input port port register).  
Figure 9. READ input port register scenario 1  
SCL  
SDA  
1
2
3
4
5
6
7
8
9
I0.x  
I1.x  
I0.x  
I1.x  
S
0
1
0
0
A2 A1 A0  
1
A
DATA 00  
A
DATA 10  
A
DATA 03  
A
1
P
DATA 12  
R/W ACKNOWLEDGE  
FROM SLAVE  
ACKNOWLEDGE  
FROM MASTER  
ACKNOWLEDGE  
FROM MASTER  
ACKNOWLEDGE  
FROM MASTER  
t
NON ACKNOWLEDGE  
FROM MASTER  
ps  
t
ph  
READ FROM PORT 0  
DATA INTO PORT 0  
READ FROM PORT 1  
DATA INTO PORT 1  
DATA 00  
DATA 01  
DATA 02  
DATA 03  
t
t
ps  
ph  
DATA 10  
DATA 11  
DATA 12  
INT  
t
t
IR  
IV  
SU01651  
NOTES: Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode).  
It is assumed that the command byte has previously been set to 00 (read input port port register).  
Figure 10. READ input port register scenario 2  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
TYPICAL APPLICATION  
V
DD  
SUBSYSTEM 1  
(e.g. temp sensor)  
2 k  
SUBSYSTEM 2  
(e.g. counter)  
V
DD  
1.6 kΩ  
1.6 kΩ  
1.1 kΩ  
2 kΩ  
INT  
V
DD  
RESET  
I/O  
I/O  
I/O  
SCL  
SDA  
SCL  
0.0  
0.1  
0.2  
MASTER  
CONTROLLER  
A
SDA  
INT  
INT  
I/O  
I/O  
I/O  
0.3  
0.4  
0.5  
ENABLE  
GND  
ALARM  
B
SUBSYSTEM 3  
(e.g. alarm system)  
PCA9535  
V
DD  
Controlled Switch  
(e.g. CBT device)  
I/O  
I/O  
I/O  
I/O  
0.6  
0.7  
1.0  
1.1  
A2  
10 DIGIT  
NUMERIC  
KEYPAD  
A1  
A0  
I/O  
1.2  
I/O  
1.3  
I/O  
1.4  
I/O  
1.5  
I/O  
1.6  
I/O  
1.7  
V
SS  
NOTE: Device address configured as 0100100 for this example  
I/O , I/O , I/O , configured as outputs  
0.0  
0.1  
0.2  
I/O , I/O , I/O , configured as inputs  
0.3  
0.4  
0.5  
I/O , I/O , and I/O to I/O configured as inputs  
0.6  
0.7  
1.0  
1.7  
SW02094  
Figure 11. Typical application  
Minimizing I when the I/O is used to control LEDs  
DD  
When the I/Os are used to control LEDs, they are normally connected to V through a resistor as shown in Figure 11. Since the LED acts as a  
DD  
diode, when the LED is off the I/O V is about 1.2 V less than V . The supply current, I , increases as V becomes lower than V and is  
IN  
DD  
DD  
IN  
DD  
specified as I in the DC characteristics table.  
DD  
Designs needing to minimize current consumption, such as battery power applications, should consider maintaining the I/O pins greater than or  
equal to V when the LED is off. Figure 12 shows a high value resistor in parallel with the LED. Figure 13 shows V less than the LED supply  
DD  
DD  
voltage by at least 1.2 V. Both of these methods maintain the I/O V at or above V and prevents additional supply current consumption when  
IN  
DD  
the LED is off.  
V
DD  
3.3 V  
5 V  
100 k  
LED  
LED  
V
DD  
V
DD  
LEDx  
LEDx  
SW02087  
SW02086  
Figure 12. High value resistor in parallel with the LED  
Figure 13. Device supplied by a lower voltage  
10  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
ABSOLUTE MAXIMUM RATINGS  
In accordance with the Absolute Maximum Rating System (IEC 134)  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
MAX  
UNIT  
V
V
Supply voltage  
-0.5  
6.0  
6
DD  
V
DC input current on an I/O  
DC output current on an I/O  
DC input current  
V
- 0.5  
SS  
V
I/O  
I/O  
I
50  
mA  
mA  
mA  
mA  
mW  
°C  
I
20  
I
I
Supply current  
160  
200  
200  
+150  
+85  
DD  
I
Supply current  
SS  
P
T
Total power dissipation  
Storage temperature range  
Operating ambient temperature  
tot  
-65  
-40  
stg  
T
amb  
°C  
11  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
HANDLING  
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is desirable to take  
precautions appropriate to handling MOS devices. Advice can be found in Data Handbook IC24 under Handling MOS devices.  
DC CHARACTERISTICS  
V
= 2.3 to 5.5 V; V = 0 V; T  
= -40 to +85 °C; unless otherwise specified.  
DD  
SS  
amb  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
Supplies  
V
Supply voltage  
Supply current  
2.3  
5.5  
V
DD  
Operating mode; V = 5.5 V; no load;  
DD  
I
135  
200  
µA  
DD  
stbl  
f
= 100 kHz; I/O = inputs  
SCL  
Standby mode; V = 5.5 V; no load;  
DD  
I
Standby current  
0.25  
1
µA  
V = V ; f  
= 0 kHz; I/O = inputs  
I
SS SCL  
Standby mode; V = 5.5 V; no load;  
DD  
I
Standby current  
0.25  
1.5  
1
µA  
stbh  
V = V ; f  
= 0 kHz; I/O = inputs  
I
DD SCL  
V
Power-on reset voltage  
No load; V = V or V  
1.65  
V
POR  
I
DD  
SS  
input SCL; input/output SDA  
V
LOW-level input voltage  
HIGH-level input voltage  
LOW-level output current  
Leakage current  
-0.5  
6
0.3 V  
V
V
IL  
IH  
DD  
V
0.7 V  
3
5.5  
DD  
I
V
= 0.4V  
OL  
mA  
µA  
pF  
OL  
I
V = V = V  
-1  
+1  
10  
L
I
DD  
SS  
SS  
C
Input capacitance  
V = V  
I
I
I/Os  
V
LOW-level input voltage  
HIGH-level input voltage  
-0.5  
2.0  
8
0.8  
5.5  
1
V
V
IL  
V
IH  
V
V
= 0.5 V; V  
= 0.7 V; V  
= 2.3-5.5 V; Note 1  
= 2.3-5.5 V; Note 1  
8-20  
10-24  
mA  
mA  
V
OL  
OL  
DD  
DD  
I
LOW-level output current  
OL  
10  
1.8  
1.7  
2.6  
2.5  
4.1  
4.0  
I
I
I
I
I
I
= -8 mA; V = 2.3 V; Note 2  
DD  
OH  
OH  
OH  
OH  
OH  
OH  
= -10 mA; V = 2.3 V; Note 2  
V
DD  
= -8 mA; V = 3.0 V; Note 2  
V
DD  
V
I
HIGH-level output voltage  
OH  
= -10 mA; V = 3.0 V; Note 2  
V
DD  
= -8 mA; V = 4.75 V; Note 2  
V
DD  
= -10 mA; V = 4.75 V; Note 2  
V
DD  
Input leakage current  
Input leakage current  
Input capacitance  
V
V
= 5.5 V; V = V  
µA  
µA  
pF  
pF  
IH  
DD  
DD  
I
DD  
SS  
I
= 5.5 V; V = V  
-1  
5
IL  
I
C
3.7  
3.7  
I
C
Output capacitance  
5
O
Interrupt INT  
I
LOW-level output current  
V
= 0.4 V  
3
mA  
OL  
OL  
Select Inputs A0, A1, A2  
V
LOW-level input voltage  
HIGH-level input voltage  
Input leakage current  
-0.5  
2.0  
-1  
0.8  
5.5  
1
V
V
IL  
V
I
IH  
µA  
LI  
NOTES:  
1. The total current sunk by all I/Os must be limited to 200 mA.  
2. The total current sourced by all I/Os must be limited to 160 mA.  
12  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
SDA  
t
t
LOW  
F
t
SU;DAT  
t
t
t
t
t
BUF  
R
F
R
HD;STA  
t
SP  
SCL  
t
t
SU;STD  
t
SU;STA  
HD;STA  
t
t
S
R
P
S
HD;DAT HIGH  
S
SU01469  
Figure 14. Definition of timing  
AC CHARACTERISTICS  
STANDARD MODE  
FAST MODE  
I C BUS  
2
2
I C BUS  
SYMBOL  
PARAMETER  
UNITS  
MIN  
0
MAX  
100  
MIN  
0
MAX  
400  
f
t
Operating frequency  
kHz  
µs  
µs  
µs  
µs  
µs  
ns  
ns  
ns  
µs  
µs  
ns  
ns  
ns  
SCL  
Bus free time between STOP and START conditions  
Hold time after (repeated) START condition  
Repeated START condition setup time  
Set-up time for STOP condition  
4.7  
4.0  
4.7  
4.0  
0.3  
0
1.3  
0.6  
0.6  
0.6  
0.1  
0
BUF  
t
t
t
HD;STA  
SU;STA  
SU;STO  
VD;ACK  
2
t
Valid time of ACK condition  
3.45  
0.9  
t
Data in hold time  
HD;DAT  
3
t
t
Data out valid time  
300  
250  
4.7  
4.0  
50  
VD;DAT  
SU;DAT  
Data set-up time  
100  
1.3  
0.6  
t
Clock LOW period  
Clock HIGH period  
Clock/Data fall time  
Clock/Data rise time  
LOW  
t
HIGH  
1
1
t
300  
1000  
50  
20 + 0.1C  
20 + 0.1C  
300  
300  
50  
F
b
t
R
b
t
Pulse width of spikes that must be suppressed by the input  
filters  
SP  
Port Timing  
t
t
t
Output data valid  
150  
1
200  
150  
1
200  
ns  
ns  
µs  
PV  
PS  
Input data set-up time  
Input data hold time  
PH  
Interrupt Timing  
t
Interrupt valid  
Interrupt reset  
4
4
4
4
µs  
µs  
IV  
IR  
t
NOTES:  
1. C = total capacitance of one bus line in pF.  
b
2. t  
3. t  
= time for Acknowledgement signal from SCL LOW to SDA (out) LOW.  
= minimum time for SDA data out to be valid following SCL LOW.  
VD;ACK  
VD;DAT  
4. t measured from 0.7V on SCL to 50% I/O output.  
PV  
DD  
13  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
V
DD  
V
IN  
V
OUT  
PULSE  
GENERATOR  
D.U.T.  
R
T
R
L
C
L
TEST CIRCUIT FOR OUTPUTS  
DEFINITIONS  
R = 1 kΩ  
L
C = 50 pF  
L
R
T
= Termination resistance should be equal to Z  
pulse generators.  
of  
OUT  
su01760  
Figure 15. t set-up conditions  
PV  
14  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
SO24: plastic small outline package; 24 leads; body width 7.5 mm  
SOT137-1  
15  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm  
SOT355-1  
16  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
HVQFN24: plastic thermal enhanced very thin quad flat package; no leads; 24 terminals;  
body 4 x 4 x 0.85 mm  
SOT616-1  
17  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
REVISION HISTORY  
Rev  
Date  
Description  
_1  
20030627  
Product data (9397 750 11681); ECN 853-2430 30019 dated 11 June 2003.  
Initial version  
18  
2003 Jun 27  
Philips Semiconductors  
Product data  
16-bit I2C and SMBus, low power I/O port with interrupt  
PCA9535  
2
2
Purchase of Philips I C components conveys a license under the PhilipsI C patent  
2
to use the components in the I C system provided the system conforms to the  
I C specifications defined by Philips. This specification can be ordered using the  
2
code 9398 393 40011.  
Data sheet status  
Product  
status  
Definitions  
[1]  
Level  
Data sheet status  
[2] [3]  
I
Objective data  
Development  
This data sheet contains data from the objective specification for product development.  
Philips Semiconductors reserves the right to change the specification in any manner without notice.  
II  
Preliminary data  
Qualification  
Production  
This data sheet contains data from the preliminary specification. Supplementary data will be published  
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in  
order to improve the design and supply the best possible product.  
III  
Product data  
This data sheet contains data from the product specification. Philips Semiconductors reserves the  
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant  
changes will be communicated via a Customer Product/Process Change Notification (CPCN).  
[1] Please consult the most recently issued data sheet before initiating or completing a design.  
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL  
http://www.semiconductors.philips.com.  
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.  
Definitions  
Short-form specification The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see  
the relevant data sheet or data handbook.  
Limiting values definition Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting  
values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given  
in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.  
Application information Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no  
representation or warranty that such applications will be suitable for the specified use without further testing or modification.  
Disclaimers  
Life support These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be  
expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree  
to fully indemnify Philips Semiconductors for any damages resulting from such application.  
Right to make changes Philips Semiconductors reserves the right to make changes in the productsincluding circuits, standard cells, and/or softwaredescribed  
or contained herein in order to improve design and/or performance. When the product is in full production (status Production), relevant changes will be communicated  
via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys  
no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent,  
copyright, or mask work right infringement, unless otherwise specified.  
Koninklijke Philips Electronics N.V. 2003  
Contact information  
All rights reserved. Printed in U.S.A.  
For additional information please visit  
http://www.semiconductors.philips.com.  
Fax: +31 40 27 24825  
Date of release: 06-03  
For sales offices addresses send e-mail to:  
sales.addresses@www.semiconductors.philips.com.  
Document order number:  
9397 750 11681  
Philips  
Semiconductors  

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