stm6717tz STMicroelectronics, stm6717tz Datasheet
stm6717tz
Available stocks
Related parts for stm6717tz
stm6717tz Summary of contents
Page 1
Features ■ Primary supply (V ) monitor. Fixed (factory- CC1 programmed) reset thresholds: 4.63V to 1.58V ■ Secondary supply (V ) monitor CC2 (STM6717/18/19/20/77/78). ■ Fixed (factory-programmed) reset thresholds: 3.08V to 0.79V ■ Tertiary supply monitor (using externally adjustable rstin): ...
Page 2
Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 4
List of figures Figure 1. Logic diagram (STM6717/18 ...
Page 5
Description The STM6717/18/19/20 and STM6777/78/79/80 supervisors are a family of low voltage/low supply current processor (Micro or DSP) supervisors, designed to monitor two (or three) system power supply voltages. They are targeted at applications such as Set-Top Boxes (STBs), ...
Page 6
Figure 1. Logic diagram (STM6717/18 CC2 CC1 STM6717 MR STM6718 V SS Figure 3. Logic diagram (STM6719/20 CC2 CC1 RSTIN STM6719 STM6720 Table 2. Signal names MR Push-button reset input MRC Manual reset ...
Page 7
Figure 5. STM6717/18 SOT23-5 connections 5 1 RST Figure 7. STM6719/20 SOT23-6 connections 1 6 RST 1.1 Pin descriptions 1.1.1 Active-low, push-pull reset output (RST) - STM6718/20/78/80 ...
Page 8
can be driven from a TTL or CMOS logic line, or with open drain/collector outputs, CC1 or connected Connect a normally open momentary switch from not required. ( driven ...
Page 9
Figure 9. Block diagram V CC1 V CC2 (1) (2) RSTIN V CC1 MR MRC ( input is available on STM6717/18/19/20/77/78. CC2 2. RSTIN available only on STM6719/20/79/80. 3. MRC available only on STM6777/78/79/80. Figure 10. Hardware hookup ...
Page 10
Operation 2.1 Applications information 1. Interfacing to processors with bi-directional reset pins Most processors with bi-directional reset pins can interface directly to the open drain RST outputs (STM6717/19/77/79). Systems simultaneously requiring a push-pull RST output and a bi-directional reset ...
Page 11
Typical operating characteristics Note: Typical values are at T Figure 13. Supply current vs. temperature ( –40 Figure 14. Supply current vs. temperature ( ...
Page 12
Figure 15. Supply current vs. temperature ( –40 Figure 16. Supply current vs. temperature ( 12/29 CC1 I TOTAL I ...
Page 13
Figure 17. Normalized V reset time-out period vs. temperature CC 1.07 1.05 1.03 1.01 0.99 0.97 –40 –20 Figure 18. Maximum V transient duration vs. reset threshold overdrive CC 1000 100 Temperature (°C) 10 ...
Page 14
Figure 19. Normalized V 1.004 1.002 1.000 0.998 0.996 Figure 20. Normalized V 1.004 1.002 1.000 0.998 0.996 14/29 threshold vs. temperature RST1 –40 – Temperature (°C) threshold vs. temperature RST2 –40 – Temperature (°C) 40 ...
Page 15
Figure 21. Reset input threshold vs. temperature 630 629 628 627 626 625 624 –40 –20 Figure 22. V -to-reset delay vs. temperature CC1 –40 – Temperature (° ...
Page 16
Figure 23. Reset input-to-reset output delay vs. temperature 29.0 28.5 28.0 27.5 27.0 26.5 26.0 25.5 25.0 Figure 24. MR-to-reset output delay vs. temperature (V 500 480 460 440 420 400 16/29 –40 – Temperature (°C) –40 –20 ...
Page 17
... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 4. ...
Page 18
DC and AC parameters This section summarizes the operating measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC characteristics Tables that follow, are derived from tests performed under the Measurement ...
Page 19
Table 6. DC and AC characteristics Alter- Sym Description native V Operating voltage supply current CC1 CC1 I V supply current CC2 CC2 (2) I Input leakage current LI Open drain RST output I LO leakage current ...
Page 20
Table 6. DC and AC characteristics (continued) Alter- Sym Description native ( reset threshold RST2 TH2 CC2 V Reset threshold hysteresis HYST RST delay RST pulse width rec RP Adjustable ...
Page 21
Table 6. DC and AC characteristics (continued) Alter- Sym Description native Manual (push-button) reset input input voltage minimum pulse width (STM6717/18/19/20 MLMH MR MR minimum pulse width (STM6777/78/79/80 ...
Page 22
Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...
Page 23
Table 8. SOT23-5 – 5-lead small outline transistor package mechanical data Symb Typ A – A1 – A2 1.15 b – C – D 2.90 E 2.80 E1 1.60 e 0.95 e1 1.90 L 0.45 Q 4° N Note: Dimensions ...
Page 24
Table 9. SOT23-6 – 6-lead small outline transistor package mechanical data Symb Typ A – A1 – A2 1.15 b – C – D 2.90 E 2.80 E1 1.60 e 0.95 e1 1.90 L 0.45 Q 4° N Note: Dimensions ...
Page 25
Part numbering Table 10. Ordering information scheme Example: Device type STM67xx Reset thresholds (V and V RST1 RST2 STM6717/18/19/20/77/78 (V and V RST1 Suffix V RST1 LT 4.625 MS 4.375 MR 4.375 (1) TZ 3.075 (1) TW 3.075 TI ...
Page 26
... Part number V threshold (V) RST1 STM6717SD 2.925 STM6717SJ 2.925 STM6717SF 2.925 STM6717TG 3.075 STM6717TGG 3.075 STM6717TW 3.075 STM6717SV 2.925 STM6717SY 2.925 STM6717TZ 3.075 STM6718SF 2.925 STM6718TG 3.075 STM6718TW 3.075 STM6718SV 2.925 STM6718SY 2.925 STM6718TZ 3.075 STM6719SF 2.925 STM6719TG 3.075 STM6719SH 2.925 STM6719TW 3 ...
Page 27
Table 11. Marking description (continued) Part number V threshold (V) RST1 STM6778TG 3.075 STM6778TW 3.075 STM6778SV 2.925 STM6778SY 2.925 STM6778TZ 3.075 STM6779L 4.625 STM6779T 3.075 STM6779S 2.925 STM6779Y 2.188 STM6779V 1.575 STM6780L 4.625 STM6780T 3.075 STM6780S 2.925 STM6780Y 2.188 STM6780V ...
Page 28
Revision history Table 12. Document revision history Date Version 18-Oct-2004 25-Oct-2004 14-Jan-2005 09-Feb-2005 08-Apr-2005 28-Jul-2005 13-Sep-2005 07-Oct-2005 07-Feb-2007 12-Jun-2007 05-Dec-2007 28/29 1.0 First draft 1.1 Descriptive text, sales types 1.2 Update characteristics, pin functions 1.3 Update characteristics (Figure Update ...
Page 29
... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...