TMP125

SBOS323A − DECEMBER 2004 − REVISED JUNE 2005

www.ti.com

6

60ms

120ms

50

µA(active)

20

µA(idle)

Figure 2. Conversion Time and Period

Timing Diagrams

The TMP125 is SPI-compatible. Figure 3 and Figure 4

describe the output data of the TMP125. Figure 5,

Figure 6, and Figure 7 describe the various timing

requirements, with parameters defined in Table 3.

PARAMETER

MIN

MAX

UNITS

SCK Period

t1

100

ns

Data In to Rising Edge SCK Setup Time

t2

20

ns

SCK Falling Edge to Output Data Delay

t3

30

ns

SCK Rising Edge to Input Data Hold Time

t4

20

ns

CS to Rising Edge SCK Set-Up Time

t5

40

ns

CS to Output Data Delay

t6

30

ns

CS Rising Edge to Output High Impedance

t7

30

ns

Table 3. Timing Description

SO

SCK

CS

T0

T0

T0

T0

T0

T0

T1

T2

T3

T4

T5

T6

T7

T8

T9

Leading

Zero

SI

Don’t

Care

Don’t

Care

Power

Down

To enter shutdown mode, SI must be high on the rising edge of the third bit of SCK (see the Communicating with the TMP125 section).

Figure 3. Data READ

SO

SCK

CS

T0

T0

T0

T0

T0

T0

T1

T2

T3

T4

T5

T6

T7

T8

T9

Leading

Zero

SI

Don’t

Care

Don’t

Care

Power

Down

One−

Shot

Figure 4. One-Shot Command