参数资料
型号: MCP4725EV
厂商: Microchip Technology
文件页数: 25/50页
文件大小: 0K
描述: BOARD EVAL FOR MCP4725
标准包装: 1
DAC 的数量: 1
位数: 12
采样率(每秒): 100k ~ 3.4M
数据接口: I²C
设置时间: 6µs
DAC 型: 电压
工作温度: -40°C ~ 125°C
已供物品: 2 板,CD
已用 IC / 零件: MCP4725
产品目录页面: 673 (CN2011-ZH PDF)
2009 Microchip Technology Inc.
DS22039D-page 31
MCP4725
High Speed Mode (Note 5)
Clock frequency
fSCL
0—
3.4
MHz
Cb = 100 pF
0—
1.7
MHz
Cb = 400 pF
Clock high time
THIGH
60
ns
Cb = 100 pF, fSCL = 3.4 MHz
120
ns
Cb = 400 pF, fSCL = 1.7 MHz
Clock low time
TLOW
160
ns
Cb = 100 pF, fSCL = 3.4 MHz
320
ns
Cb = 400 pF, fSCL = 1.7 MHz
SCL rise time
TR:SCL
40
ns
From VIL to VIH,
Cb = 100 pF, fSCL = 3.4 MHz
80
ns
From VIL to VIH,
Cb = 400 pF, fSCL = 1.7 MHz
SCL fall time
TF:SCL
40
ns
From VIH to VIL,
Cb = 100 pF, fSCL = 3.4 MHz
80
ns
From VIH to VIL,
Cb = 400 pF, fSCL = 1.7 MHz
SDA rise time
TR: DAT
80
ns
From VIL to VIH,
Cb = 100 pF, fSCL = 3.4 MHz
160
ns
From VIL to VIH,
Cb = 400 pF, fSCL = 1.7 MHz
SDA fall time
TF: DAT
80
ns
From VIH to VIL,
Cb = 100 pF, fSCL = 3.4 MHz
160
ns
From VIH to VIL,
Cb = 400 pF, fSCL = 1.7 MHz
Data hold time
THD:DAT
0
70
ns
Cb = 100 pF, fSCL = 3.4 MHz
0
150
ns
Cb = 400 pF, fSCL = 1.7 MHz
Output valid from clock
(Notes 2 and 3)
TAA
150
ns
Cb = 100 pF, fSCL = 3.4 MHz
310
ns
Cb = 400 pF, fSCL = 1.7 MHz
START condition hold time
THD:STA
160
ns
After this period, the first clock
pulse is generated
START (Repeated) condition
setup time
TSU:STA
160
ns
Data input setup time
TSU:DAT
10
ns
STOP condition setup time
TSU:STO
160
ns
TABLE 7-1:
I2C SERIAL TIMING SPECIFICATIONS (CONTINUED)
Electrical Specifications: Unless otherwise specified, all limits are specified for TA = -40 to +85°C, VDD = +2.7V to +5.0V, VSS = 0V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
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 same 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:
All timing parameters in high-speed modes are tested at VDD = 5V.
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