参数资料
型号: PCA9673PW,118
厂商: NXP Semiconductors
文件页数: 14/33页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 24TSSOP
标准包装: 2,500
接口: I²C
输入/输出数: 16
中断输出:
频率 - 时钟: 1MHz
电源电压: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 带卷 (TR)
包括: POR
其它名称: 935283558118
PCA9673PW-T
PCA9673PW-T-ND
PCA9673
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 2 — 29 September 2011
21 of 33
NXP Semiconductors
PCA9673
Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset
[2]
Each bit must be limited to a maximum of 25 mA and the total package limited to 400 mA due to internal busing limits.
[3]
The value is not tested, but verified on sampling basis.
13. Dynamic characteristics
[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.
Table 6.
Dynamic characteristics
VDD = 2.3 V to 5.5 V; VSS =0V; Tamb = 40 Cto+85 C; unless otherwise specified.
Symbol Parameter
Conditions
Standard mode
I2C-bus
Fast mode I2C-bus
Fast-mode
Plus I2C-bus
Unit
Min
Max
Min
Max
Min
Max
fSCL
SCL clock frequency
0
100
0
400
0
1000
kHz
tBUF
bus free time between a
STOP and START condition
4.7
-
1.3
-
0.5
-
s
tHD;STA
hold time (repeated) START
condition
4.0
-
0.6
-
0.26
-
s
tSU;STA
set-up time for a repeated
START condition
4.7
-
0.6
-
0.26
-
s
tSU;STO
set-up time for STOP
condition
4.0
-
0.6
-
0.26
-
s
tHD;DAT
data hold time
0
-
0
-
0
-
ns
tVD;ACK
data valid acknowledge time
0.3
3.45
0.1
0.9
0.05
0.45
s
tVD;DAT
data valid time
300
-
50
-
50
450
ns
tSU;DAT
data set-up time
250
-
100
-
50
-
ns
tLOW
LOW period of the SCL clock
4.7
-
1.3
-
0.5
-
s
tHIGH
HIGH period of the SCL
clock
4.0
-
0.6
-
0.26
-
s
tf
fall time of both SDA and
SCL signals
-
300
20 + 0.1Cb[3]
300
-
120
ns
tr
rise time of both SDA and
SCL signals
-
1000
20 + 0.1Cb[3]
300
-
120
ns
tSP
pulse width of spikes that
must be suppressed by the
input filter
-50
-
50
-
50
ns
Port timing; CL 100 pF (see Figure 14 and Figure 15)
tv(Q)
data output valid time
-
4
-
4
-
4
s
tsu(D)
data input set-up time
0
-
0
-
0
-
s
th(D)
data input hold time
4
-
4
-
4
-
s
Interrupt timing; CL 100 pF (see Figure 14 and Figure 15)
tv(D)
data input valid time
-
4
-
4
-
4
s
td(rst)
reset delay time
-
4
-
4
-
4
s
Reset timing (see Figure 25)
tw(rst)
reset pulse width
4
-
4
-
4
-
ns
trec(rst)
reset recovery time
0
-
0
-
0
-
ns
trst
reset time
100
-
100
-
100
-
ns
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