參數(shù)資料
型號： PCA8575DK
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Remote 16-bit I/O expander for I2C-bus with interrupt
中文描述： 18 I/O, PIA-GENERAL PURPOSE, PDSO24
封裝： 3.90 MM, 0.635 MM PITCH, PLASTIC, MO-137, SOT556-1, SSOP-24
文件頁數(shù)： 15/30頁
文件大?。?/td> 168K
代理商： PCA8575DK
PCA8575_1
NXP B.V. 2006. All rights reserved.
Objective data sheet
Rev. 01 — 30 November 2006
15 of 30
NXP Semiconductors
PCA8575
Remote 16-bit I/O expander for I
2
C-bus with interrupt
10.3 Differences between the PCA8575 and the PCF8575
The PCA8575 is a drop in replacement for the PCF8575 and can used without electrical
or software modifications, but there is a difference in interrupt output release timing during
the read operation.
Write operations are identical. At the completion of each 8-bit write sequence the data is
stored in its associated 8-bit write register at ACK or NACK. The first byte goes to P0n
while the second goes to P1n. Subsequent writes without a STOP wrap around to P0n
then P1n again. Any write will update both read registers and clear interrupts.
Read operations are identical. Both devices update the byte register with the pin data as
each 8-bit read is initiated, the very first read after an address cycle corresponds to ports
P0n while the second (even byte) corresponds to P1n and subsequent reads without a
STOP wrap around to P0n then P1n again.
During read operations, the PCA8575 interrupt output will be cleared in a byte-wise
fashion as each byte is read. Reading the first byte will clear any interrupts associated
with the P0n pins. This first byte read operation will have no effect on interrupts associated
with changes of state on the P1n pins. Interrupts associated with the P1n pins will be
cleared when the second byte is read. Reading the second byte has no effect on
interrupts associated with the changes of state on the P0x pins. The PCF8575 interrupt
output will clear after reading both bytes of data regardless of whether data was changed
in the first byte or the second byte or both bytes.
11. Limiting values
[1]
Total package (maximum) output current is 600 mA.
Table 4.
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
V
DD
supply voltage
I
DD
supply current
I
SS
ground supply current
V
I
input voltage
I
I
input current
I
O
output current
P
tot
total power dissipation
P/out
power dissipation per output
T
stg
storage temperature
T
amb
ambient temperature
Limiting values
Conditions
Min
0.5
-
-
V
SS
0.5
-
-
-
-
65
40
Max
+6
±
100
±
600
5.5
±
20
±
50
[1]
600
200
+150
+85
Unit
V
mA
mA
V
mA
mA
mW
mW
°
C
°
C
operating
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相關代理商/技術參數(shù)
參數(shù)描述
PCA8575DK,118 功能描述:接口-I/O擴展器 16-BIT I2C FM QB RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA8575DK-T 功能描述:接口-I/O擴展器 16-BIT I2C FM QB GPIO INT PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA8575PW 功能描述:接口-I/O擴展器 16-BIT I2C FM QB GPIO INT PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA8575PW,112 功能描述:接口-I/O擴展器 16-BIT I2C FM QB RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA8575PW,118 功能描述:接口-I/O擴展器 16-BIT I2C FM QB GPIO INT PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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