PI4IOE5V9570 [PERICOM]
4-bit general purpose outputs;
| 型号： | PI4IOE5V9570 |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | 4-bit general purpose outputs |
| 文件： | 总11页 (文件大小：410K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI4IOE5V9570
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
4-bit general purpose outputs for 1MHz I2C bus
Features
Description
Operation power supply voltage from 2.3V to 5.5V
4-bit I2C-bus GPO
The PI4IOE5V9570 is a CMOS device that
provides 4bits of General Purpose parallel Output
(GPO) expansion in low voltage processor and
handheld battery powered mobile applications. It
operates at 1 MHz I2C-bus speeds while maintaining
backward compatibility to Fast-mode (400 kHz) and
Standard-mode (100 kHz).
1 MHz I2C-bus interface with 30 mA SDA sink
capability for 4000pF
Latched outputs with 25mA capability for directly
driving LEDs
Software Reset; Power-on reset
Low standby current
The PI4IOE5V9570 is a streamlined GPO that
consists of 4-bit push-pull outputs that offer low
current consumption, small packaging options The
PI4IOE5V9570 output expander provides a simple
solution when additional outputs are needed while
keeping interconnections and floor space to a
minimum, for example, in battery powered mobile
applications where PCBs are crowded for interfacing
to sensors, push buttons, etc.
ESD protection (4KV HBM and 1KV CDM)
Offered in two different packages:UQFN 1.6x1.6-
8,MSOP-8
The PI4IOE5V9570 contains an internal Power-On
Reset (POR) and a Software Reset feature that
initializes the device to its default state.
Pin Configuration
Figure1 : MSOP-8
Figure2 : UQFN 1.6x1.6-8
2015-07-0044
PT0559
08/05/15
1
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
Pin Description
Table 1. Pin configuration
* I = Input; O = Output; P = Power; G = Ground
TDFN 1.6*1.6
1
TSSOP
1
Name
P0
Type
I/O
Description
Input/ output 0
2
3
4
5
6
7
8
2
3
4
5
6
7
8
P1
P2
I/O
I/O
G
Input/ output 1
Input/ output 2
Supply Ground
Input/ output 3
Serial clock line
Serial data line
Power supply
GND
P3
I/O
I
SCL
SDA
VCC
I/O
P
2015-07-0044
PT0559
08/05/15
2
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
Maximum Ratings
Note:
Powersupply......................................................................................................-0.5Vto+6.0V
Voltageonan I/Opin..........................................................................GND-0.5Vto +6.0V
Inputcurrent.....................................................................................................................±20mA
Outputcurrenton anI/Opin ......................................................................................±50mA
Supplycurrent....................................................................................................................85mA
Groundsupplycurrent...................................................................................................100mA
Totalpowerdissipation................................................................................................200mW
Operationtemperature...............................................................................................-40~85℃
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other
conditions above those indicated in the operational
sections of this specification is not implied.
Exposure to absolute maximum rating conditions
for extended periods may affect reliability.
Storagetemperature ................................................................................................-65~150℃
Maximum Junctiontemperature,Tj(max) ................................................................125℃
Static characteristics
VCC =2.3 V to 5.5V; GND = 0 V; Tamb= -40 °C to +85 °C; unless otherwise specified.
Table 2: Static characteristics
Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
Power supply
VCC
IDD
Supply voltage
Supply current
2.3
-
-
5.5
500
10
V
μA
uA
V
Operating mode; no load;
200
4.5
VI = VCC or GND; fSCL = 1 MHz;
Standby mode; VCC = 5.5 V; no load;
VI = VCC; fSCL= 0 kHz; I/O = inputs
Standby mode; no load;
Istb
Standby current
-
[1]
VPOR
-
1.16
1.41
Power-on reset voltage
VI = VCC or GND; fSCL = 0 kHz
Input SCL, input/output SDA
Low level input voltage
V
IL
-0.5
0.7VCC
20
0.3VCC
V
V
V
IH
High level input voltage
5.5
-
VOL =0.4V;VCC =2.3V
VOL = 0.4 V; VCC = 3.0 V
VOL = 0.4 V; VCC = 4.5 V
VI=VCC=GND
35
44
57
-
mA
IOL
Low level output current
25
30
IL
Leakage current
Input capacitance
-1
1
μA
Ci
VI =GND
-
5
10
pF
2015-07-0044
PT0559
08/05/15
3
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
Conditions
Symbol
I/Os
VIL
VIH
Parameter
Min.
Typ.
Max.
Unit
LOW-level input voltage
HIGH-level input voltage
-0.5
1.8
12
0.81
5.5
V
V
VCC = 2.3 V; VOL = 0.5 V[2]
VCC =3.0V; VOL = 0.5 V[2]
VCC =4.5V; VOL = 0.5 V[2]
26
33
40
mA
mA
mA
IOL
Low level output current
17
25
total LOW-level output
current
IOL(tot)
IOH
VOL=0.5V;VCC=4.5V
VOH = GND
200
mA
uA
HIGH-level output current
-30
-359
-1.0
-480
transient boosted pull-up
current
Itrt(pu)
VOH= GND
-0.5
mA
Ci
Input capacitance
Output capacitance
-
-
2.1
2.1
10
10
pF
pF
Co
Note:
[1]: VCC must be lowered to 0.2 V for at least 5 us in order to reset part.
[2]: Each I/O must be externally limited to a maximum of 25 mA and the total package limited to 100 mA due to internal busing
limits.
[3]: The value is not tested, but verified on sampling basis.
2015-07-0044
PT0559
08/05/15
4
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
Dymaic Characteristics
Table 3: Dynamic characteristics
Standard mode
I2C
1 MHz
I2C-bus
Fast mode I2C
Unit
Test
Conditions
Symbol
Parameter
Min
0
Max
Min
0
Max
Min
Max
fSCL
tBUF
SCL clock frequency
100
400
0
1000 kHz
bus free time between a STOP
and START condition
hold time (repeated) START
condition
set-up time for a repeated
START condition
4.7
4.0
-
-
1.3
0.6
-
-
0.5
μs
μs
tHD;STA
tSU;STA
tSU;STO
0.26
0.26
0.26
4.7
4.0
-
-
-
0.6
0.6
-
-
-
μs
μs
set-up time for STOP
condition
[1]
tVD;ACK
data valid acknowledge time
data hold time
3.45
0.9
0
0.45
0.45
μs
ns
us
ns
μs
μs
ns
ns
tHD;DAT
0
[2]
tVD;DAT
data valid time
3.45
-
100
1.3
0.6
-
0.9
-
tSU;DAT
tLOW
tHIGH
tf
data set-up time
250
4.7
4.0
-
-
-
50
0.5
0.26
-
LOW period of the SCL clock
HIGH period of the SCL clock
-
-
-
fall time of both SDA and SCL
signals
rise time of both SDA and
SCL signals
300
1000
300
300
120
120
tr
-
-
-
pulse width of spikes that must
be
[3]
tSP
-
50
-
50
-
50
ns
suppressed by the input filter
Port timing
tv(Q)
Data output valid time
200
200
200
ns
Note:
[1] tVD;ACK = time for Acknowledgement signal from SCL LOW to SDA (out) LOW.
[2] tVD;DAT = minimum time for SDA data out to be valid following SCL LOW.
[3] Input filters on the SDA and SCL inputs suppress noise spikes less than 50 ns.
2015-07-0044
PT0559
08/05/15
5
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
PI4IOE5V9570 Block Diagram
Fig 3: Block diagram of PI4IOE5V9570
Details Description
a. Device Address
b7(MSB) b6
b5
0
b4
0
b3
1
b2
0
b1
b0
Address Byte
0
1
0
R/W
b. Software Reset Call
General Call address: allows resetting the device through the I2C-bus upon reception of the right I2C-bus sequence.
b7(MSB) b6
b5
0
b4
0
b3
0
b2
0
b1
0
b0
0
General Call
Address
0
0
c. Software Reset
The Software Reset Call allows all the devices in the I2C-bus to be reset to the power-up state value through a specific
formatted I2C-bus command. To be performed correctly, it implies that the I2C-bus is functional and that there is no device
hanging the bus.
The Software Reset sequence is defined as following:
1. A START command is sent by the I2C-bus master.
2. The reserved General Call I2C-bus address ‘0000 000’ with the R/W bit set to 0 (write) is sent by the I2C-bus master.
3. The device acknowledges after seeing the General Call address ‘0000 0000’ (00h) only. If the R/W bit is set to 1 (read), no
acknowledge is returned to the I2C-bus master.
4. Once the General Call address has been sent and acknowledged, the master sends 1 byte. The value of the byte must be
equal to 06h.
a. The device acknowledges this value only. If the byte is not equal to 06h, the device does not acknowledge it.
2015-07-0044
PT0559
08/05/15
6
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
b. If more than 1 byte of data is sent, the device does not acknowledge any more.
5. Once the right byte has been sent and correctly acknowledged, the master sends a STOP command to end the Software
Reset sequence: the device then resets to the default value (power-up value) and is ready to be addressed again within the specified
bus free time. If the master sends a Repeated START instead, no reset is performed.
The I2C-bus master must interpret a non-acknowledge from the device (at any time) as a ‘Software Reset Abort’. The device
does not initiate a reset of its registers.
The unique sequence that initiates a Software Reset is described in Figure 4.
Figure 4: Software reset
d. Quasi-bidirectional I/O architecture
The device ports are entirely independent and are output ports. The state of the ports at the pin is transferred from the ports to
the microcontroller in the Read mode (see Figure 7). Output data is transmitted to the ports in the Write mode (see Figure 6).At
power-on all ports are HIGH. The state of the Output Port register determines if either Q1 or Q2 is on, driving the line either
HIGH or LOW. A bit set to 1 in the data byte drives the line HIGH at the corresponding port. A bit set to 0 in the data byte drives
the line LOW at the corresponding port.
If an external voltage is applied to an output, care should be exercised because of the low-impedance path that exists between
the pin and either VCC or GND.
Figure 5:I/O architecture
2015-07-0044
PT0559
08/05/15
7
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
e. Bus Transaction
Writing to the port (output mode)
To write, the master (microcontroller) first addresses the slave device. By setting the last bit of the byte containing the slave
address to logic 0, the Write mode is entered. The device acknowledges and the master sends the data byte for P7 to P0 and is
acknowledged by the device. Writes to P7 to P4 are ignored in the PI4IOE5V9570 as only P3 through P0 are available. The 4-bit
data is presented on the port lines after it has been acknowledged by the device. The number of data bytes that can be sent
successively is not limited. The previous data is overwritten every time a data byte has been sent.
Figure 6: Write to configuration registers
Reading from a port (input mode)
All ports are outputs and cannot be used as inputs. When reading the device, the data returned is the port state at the pin. To read,
the master (microcontroller) first addresses the slave device by setting the last bit of the byte containing the slave address to logic
1. The data byte that follows on the SDA is the value of the ports pins. There is no limit to the number of bytes read, and the state
of the output port pins is updated at each acknowledge cycle. Logic 1 means that the port is HIGH. Logic 0 means that the port is
LOW. When the PI4IOE5V9570 is read, P7 through P4 return logic ‘1’.
Figure 7: Read from registers
Note: Transfer can be stopped at any time by a STOP condition.
f. Power-on reset
When power is applied to VCC, an internal Power-On Reset (POR) holds the device in a reset condition until VCC has reached
VPOR. At that point, the reset condition is released and the device registers and I2C-bus/SMBus state machine initialize to their
default states.
2015-07-0044
PT0559
08/05/15
8
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
I/O expander applications
Bellow figure shows a 4-bit output expander application. The desired HIGH or LOW logic levels are controlled by the master with
speeds of up to 1 MHz .This allows the host processor to control various functions quickly and with very low overhead. The port
read function of the device enables the host processor to poll the status of the output port pins. This is useful for system recovery
operations or debugging.
Figure 8: Application
2015-07-0044
PT0559
08/05/15
9
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
Mechanical Information
MSOP-8(U)
2015-07-0044
PT0559
08/05/15
10
PI4IOE5V9570
4-bit general purpose outputs
for 1MHz I2C bus
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|||||||||||||||||
UQFN-8(XT)
Ordering Information
Part No.
Package Code
Package
8-Pin, Mini Small Outline Package(MSOP)
PI4IOEV9570UE
U
8-Pin, Mini Small Outline Package(MSOP),
Tape & Reel
PI4IOE5V9570UE
U
PI4IOE5V9570XTEX
XT
8-pin UQFN 1.6x1.6, Tape & Reel
Note:
E = Pb-free and Green
Adding X Suffix= Tape/Reel
Pericom Semiconductor Corporation 1-800-435-2336 www.pericom.com
Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply
the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The
company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.
2015-07-0044
PT0559
08/05/15
11
相关型号：
©2020 ICPDF网 联系我们和版权申明