List of figures

STM706T/S/R, STM706P, STM708T/S/R

4/32

Doc ID 10518 Rev 12

List of figures

Figure 1.

Logic diagram (STM706T/S/R and STM706P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2.

Logic diagram (STM708T/S/R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 3.

STM706T/S/R and STM706P SO8 connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 4.

STM706T/S/R and STM706P TSSOP8 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 5.

STM708T/S/R SO8 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 6.

STM708T/S/R TSSOP8 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 7.

Block diagram (STM706T/S/R and STM706P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 8.

Block diagram (STM708T/S/R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 9.

Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 10.

Reset output valid to ground circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 11.

Interfacing to microprocessors with bi-directional reset I/O . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 12.

Supply current vs. temperature (no load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 13.

Figure 14.

Reset comparator propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 15.

Figure 16.

Normalized reset threshold vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 17.

Watchdog timeout period vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 18.

PFI to PFO propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 19.

Figure 20.

RST output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 21.

RST output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 22.

Power-fail comparator response time (assertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 23.

Power-fail comparator response time (de-assertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 24.

Maximum transient duration vs. reset threshold overdrive . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 25.

AC testing input/output waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 26.

Power-fail comparator waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 27.

MR timing waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 28.

Watchdog timing (STM706T/S/R and STM706P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 29.

SO8 – 8-lead plastic small outline, 150 mils body width, package mechanical . . . . . . . . . 27

Figure 30.

TSSOP8 – 8-lead, thin shrink small outline, 3 x 3 mm body size, outline. . . . . . . . . . . . . . 28