参数资料
型号: MCP23S18T-E/MJ
厂商: Microchip Technology
文件页数: 35/56页
文件大小: 0K
描述: IC I/O EXPANDER SPI 16B 24QFN
标准包装: 3,300
接口: SPI
输入/输出数: 16
中断输出:
频率 - 时钟: 10MHz
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 24-VFQFN 裸露焊盘
供应商设备封装: 24-QFN(4x4)
包装: 带卷 (TR)
MCP23018/MCP23S18
DS22103A-page 40
2008 Microchip Technology Inc.
FIGURE 2-7:
SPI INPUT TIMING
109
Output Valid From Clock:
TAA
100 kHz mode
3.45
s
1.8V – 5.5V
400 kHz mode
0.9
s
1.8V – 5.5V
3.4 MHz mode
0.18
s
2.7V – 5.5V
110
Bus Free Time:
TBUF
100 kHz mode
4.7
s
1.8V – 5.5V
400 kHz mode
1.3
s
1.8V – 5.5V
3.4 MHz mode
N/A
N/A
s
2.7V – 5.5V
Bus Capacitive Loading:
CB
100 kHz and 400 kHz
400
pF
3.4 MHz
100
pF
Input Filter Spike
Suppression: (SDA and SCL)
TSP
100 kHz and 400 kHz
50
ns
3.4 MHz
10
ns
TABLE 2-4:
I2C BUS DATA REQUIREMENTS (SLAVE MODE) (CONTINUED)
I2C AC Characteristics
Operating Conditions (unless otherwise indicated):
1.8V
≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +125°C
RPU (SCL, SDA) = 1 k
Ω, CL (SCL, SDA) = 135 pF.
Param
No.
Characteristic
Sym
Min
Typ
Max
Units
Conditions
Note 1:
This parameter is characterized, not 100% tested.
2:
CB is specified from 10 to 400 (pF).
3:
This parameter is not applicable in high-speed mode (3.4 MHz).
CS
SCK
SI
SO
1
5
4
7
6
3
10
2
LSB in
MSB in
high impedance
11
Mode 1,1
Mode 0,0
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