参数资料
型号: DS1721U
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Switch/Digital Output Temperature Sensor
英文描述: DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 1Cel, SQUARE, SURFACE MOUNT
封装: USOP-8
文件页数: 8/19页
文件大小: 356K
代理商: DS1721U
DS1721
16 of 17
Capacitive Load for
each Bus Line
Cb
400
pF
8
Input Capacitance
CI
5
pF
NOTES:
1. All voltages are referenced to ground.
2. I/O pins of fast mode devices must not obstruct the SDA and SCL lines if VDD is switched off.
3. IDD specified with TOUT pin open.
4. IDD specified with VDD at 5.0V and SDA,SCL = 5.0V, 0°C to 70°C.
5. After this period, the first clock pulse is generated.
6. The maximum tHD:DAT has only to be met if the device does not stretch the LOW period (tLOW) of the
SCL signal.
7. A fast mode device can be used in a standard mode system, but the requirement tSU:DAT >250 ns must
then be met. This will automatically be the case if the device does not stretch the LOW period of the
SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next
data bit to the SDA line tR MAX+tSU:DAT 1000+250 = 1250 ns before the SCL line is released.
8. Cb - total capacitance of one bus line in pF.
TIMING DIAGRAMS Figure 7
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