参数资料
型号: PCA9501BS,118
厂商: NXP Semiconductors
文件页数: 9/28页
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 20HVQFN
产品培训模块: I²C Bus Fundamentals
特色产品: NXP - I2C Interface
标准包装: 1
接口: I²C,SM 总线
输入/输出数: 8
中断输出:
频率 - 时钟: 400kHz
电源电压: 2.5 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-VQFN 裸露焊盘
供应商设备封装: 20-HVQFN(5x5)
包装: 标准包装
包括: EEPROM
产品目录页面: 824 (CN2011-ZH PDF)
配用: 568-4002-ND - DEMO BOARD I2C
其它名称: 568-3352-6
PCA9501_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 10 February 2009
17 of 28
NXP Semiconductors
PCA9501
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
12. Dynamic characteristics
[1]
All the timing values are valid within the operating supply voltage and ambient temperature range and refer to VIL and VIH with an input
voltage swing of VSS to VDD.
[2]
tpu(R) and tpu(W) are the delays required from the time VDD is stable until the specied operation can be initiated. These parameters are
guaranteed by design.
[3]
Tcy(W) is the maximum time that the device requires to perform the internal write operation.
Table 6.
Dynamic characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
I2C-bus timing[1] (see Figure 24)
fSCL
SCL clock frequency
-
400
kHz
tSP
pulse width of spikes that must be
suppressed by the input lter
-
50
ns
tBUF
bus free time between a STOP and START
condition
1.3
-
s
tSU;STA
set-up time for a repeated START condition
0.6
-
s
tHD;STA
hold time (repeated) START condition
0.6
-
s
tr
rise time of both SDA and SCL signals
-
0.3
s
tf
fall time of both SDA and SCL signals
-
0.3
s
tSU;DAT
data set-up time
250
-
ns
tHD;DAT
data hold time
0
-
ns
tVD;DAT
data valid time
SCL LOW to
data output
-
1.0
s
tSU;STO
set-up time for STOP condition
0.6
-
s
Port timing
tv(Q)
data output valid time
CL ≤ 100 pF
-
4
s
tsu(D)
data input set-up time
CL ≤ 100 pF
0
-
s
th(D)
data input hold time
CL ≤ 100 pF
4
-
s
Interrupt timing
tv(INT)
valid time on pin INT
CL ≤ 100 pF
-
4
s
trst(INT)
reset time on pin INT
CL ≤ 100 pF
-
4
s
Power-up timing
tpu(R)
read power-up time
[2] --1
ms
tpu(W)
write power-up time
[2] --5
ms
Write cycle limits (see Figure 25)
Tcy(W)
write cycle time
5
10
ms
Table 7.
Non-volatile storage specications
Parameter
Specication
memory cell data retention
10 years minimum
number of memory cell write cycles
100,000 cycles minimum
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