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| 型号： | MCP3427-E/MF |
| 厂商： | Microchip Technology |
| 文件页数： | 19/56页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT I2C PROGBL 10-DFN |
| 产品培训模块： | MCP3901 Analog Front End |
| 标准包装： | 120 |
| 位数： | 16 |
| 采样率（每秒）： | 15 |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN-EP（3x3） |
| 包装： | 管件 |
| 输入数目和类型： | 2 个差分，单极 |
| 产品目录页面： | 672 (CN2011-ZH PDF) |
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MCP3426/7/8
DS22226A-page 26
2009 Microchip Technology Inc.
TABLE 5-5:
I2C SERIAL TIMING SPECIFICATIONS
Electrical Specifications: Unless otherwise specified, all limits are specified for TA = -40 to +85°C, VDD = +2.7V to +5.0V,
VSS = 0V, CHn+ = CHn- = VREF/2.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Standard Mode (100 kHz)
Clock frequency
fSCL
0
—
100
kHz
Clock high time
THIGH
4000
—
ns
Clock low time
TLOW
4700
—
ns
SDA and SCL rise time
TR
—
1000
ns
SDA and SCL fall time
TF
—
300
ns
START condition hold time
THD:STA
4000
—
ns
After this period, the first clock
pulse is generated.
Repeated START condition
setup time
TSU:STA
4700
—
ns
Only relevant for repeated Start
condition
Data hold time
THD:DAT
0
—
3450
ns
Data input setup time
TSU:DAT
250
—
ns
STOP condition setup time
TSU:STO
4000
—
ns
Output valid from clock
TAA
0
—
3750
ns
Bus free time
TBUF
4700
—
ns
Time between START and STOP
conditions.
Fast Mode (400 kHz)
Clock frequency
TSCL
0
—
400
kHz
Clock high time
THIGH
600
—
ns
Clock low time
TLOW
1300
—
ns
SDA and SCL rise time
TR
20 + 0.1Cb
—
300
ns
SDA and SCL fall time
TF
20 + 0.1Cb
—
300
ns
START condition hold time
THD:STA
600
—
ns
After this period, the first clock
pulse is generated
Repeated START condition
setup time
TSU:STA
600
—
ns
Only relevant for repeated Start
condition
Data hold time
THD:DAT
0
—
900
ns
Data input setup time
TSU:DAT
100
—
ns
STOP condition setup time
TSU:STO
600
—
ns
Output valid from clock
TAA
0
—
1200
ns
Bus free time
TBUF
1300
—
ns
Time between START and STOP
conditions.
Input filter spike suppression
TSP
0
—
50
ns
SDA and SCL pins (Note 5)
Note
1:
This parameter is ensured by characterization and not 100% tested.
2:
This specification is not a part of the I2C specification. This specification is equivalent to the Data Hold Time (THD:DAT)
plus SDA Fall (or rise) time: TAA = THD:DAT + TF (OR TR).
3:
If this parameter is too short, it can create an unintended Start or Stop condition to other devices on the bus line. If this
parameter is too long, Clock Low time (TLOW) can be affected.
4:
For Data Input: This parameter must be longer than tSP. If this parameter is too long, the Data Input Setup (TSU:DAT) or
Clock Low time (TLOW) can be affected.
For Data Output: This parameter is characterized, and tested indirectly by testing TAA parameter.
5:
This parameter is ensured by characterization and not 100% tested. This parameter is not available for Standard Mode.
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