STM6700, STM6710 Low voltage, high accuracy, triple/quad voltage microprocessor supervisory circuit in SOT package Datasheet − production data Features ■ Accurate monitoring of up to four supply voltages ■ Precision factory set reset threshold options for 1.8 V, 2.5 V, 3.0 V, 3.3 V and 5.0 V ■ Adjustable input threshold voltage = 0.62 V with 1.5% accuracy ■ Low power consumption (< 35 µA) ■ Reset timeout period 200 ms (typ.
Contents STM6700, STM6710 Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 RESET output configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.
STM6700, STM6710 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of figures STM6700, STM6710 List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. 4/21 Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pinout SOT23-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Functional block diagram . . . . . . . . . . . . . . . . . . . . . . . .
STM6700, STM6710 1 Description Description The STM6710 is a precision voltage monitoring supervisor with the capability to monitor triple/quad voltages and combines competitive reset threshold accuracy with low power consumption. Factory-trimmed reset threshold options for monitoring 5.0 V, 3.3 V, 2.5 V and 1.8 V supplies with –5% and –10% tolerances are available.
Description STM6700, STM6710 Figure 1. Logic diagram V2IN / VCC V1IN (1) STM6700 V3IN RESET STM6710 V4IN AM04617v1 1. Open drain Table 2.
STM6700, STM6710 Description Pin descriptions V1IN, V3IN,V4IN (VxIN) The VxIN pins are used for nominal input voltages for 1.8 V, 2.5 V and 5.0 V supplies. The voltage at this pin is compared against an internal factory-programmed voltage trip point, Vrst. RESET is first asserted low when the device is initially powered and VxIN < 1 V and then at any time thereafter when VxIN falls below Vrst. The device is designed with typical hysteresis of 0.
Operation 2 STM6700, STM6710 Operation The STM6710 is capable of monitoring up to 4 voltages in a multisupply application. The device is available in several preset voltage thresholds for power supplies of 1.8 V, 2.5 V, 3.0 V, 3.3 V and 5.0 V. The STM6710 is powered by the V2IN pin which is also a monitored voltage, thus making this a quad voltage monitor. The STM6710Q and STM6700 use this pin as VCC which is not monitored and thereby limits these devices to three adjustable voltage inputs.
STM6700, STM6710 Figure 6.
Operation 2.2 STM6700, STM6710 Adjustable thresholds (input configurations) The STM6700/STM6710 may be configured to monitor several options with adjustable reset thresholds. The threshold voltages at each adjustable input VxIN is typically 0.62 V. Thus to monitor a voltage > 0.62 V, a resistor divider network as shown in Figure 7 can be used. The STM6710 allows users to customize the minimum voltage sense level with adjustable reset thresholds.
STM6700, STM6710 2.3 Operation Unused inputs Connect unused monitor inputs to a supply voltage greater in magnitude than their specified threshold voltages. For unused VxIN adjustable inputs connect a 1 MΩ resistor between unused input and V2IN or (VCC) to limit the bias current. Use V2IN for normal operation (device power supply pin). Do not connect unused monitor inputs to ground or allow them to float. 2.
Maximum ratings 3 STM6700, STM6710 Maximum ratings Stressing the device above the rating listed in Table 3 may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in Table 4 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 3.
STM6700, STM6710 4 DC and AC parameters DC and AC parameters This section summarizes the DC and AC characteristics of the device. The parameters in Table 5 are derived from tests performed under the test conditions. Designers should check that the operating conditions in their circuit match the operating conditions when relying on the quoted parameters. Table 4. Operating and AC measurement conditions Parameter Conditions V2IN supply voltage (TA = 0 to 85 °C) 1.0 to 5.
DC and AC parameters Table 5. Alt. STM6700, STM6710 DC and AC characteristics (continued) Symbol Parameter Test conditions Min. Typ.(1) Max. 5 V (–5%) 4.500 4.630 4.750 5 V (–10%) 4.250 4.380 4.450 3.3 V (–5%) 3.000 3.080 3.150 3.3 V (–10%) 2.850 2.930 3.000 3.0 V (–5%) 2.700 2.780 2.850 3.0 V (–10%) 2.550 2.630 2.70 2.5 V (–5%) 2.250 2.320 2.380 2.5 V (–10%) 2.130 2.190 2.250 1.8 V (–5%) 1.620 1.670 1.710 1.8 V (–10%) 1.530 1.580 1.620 VxIN decreasing 0.
STM6700, STM6710 5 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.
Package mechanical data Figure 9. STM6700, STM6710 SOT23 – 6-lead small outline transistor package mechanical outline 7049714_F Table 6. SOT23 – 6-lead small outline transistor package mechanical data Dimensions Symbol mm Min. Max. Min. Typ. Max. A 0.9 1.45 0.035 0.057 A1 0 0.10 0 0.0039 A2 0.9 1.3 0.035 0.0512 b 0.35 0.5 0.014 0.02 c 0.09 0.2 0.004 0.008 D 2.8 3.05 0.11 0.120 E 1.5 1.75 0.059 0.0689 e 16/21 Typ. inches 0.95 0.037 H 2.6 3 0.102 0.
STM6700, STM6710 Package mechanical data Figure 10. SOT23-6 landing pattern AM04854v1 Figure 11. Carrier tape for SOT23-6 P0 E P2 D T A0 F TOP COVER TAPE W B0 P1 CENTER LINES OF CAVITY K0 USER DIRECTION OF FEED AM03073v1 Table 7. Package Carrier tape dimensions for SOT23-6 W D 1.50 8.00 SOT23-6 +0.30/ +0.10/ –0.10 –0.00 E P0 P2 F 1.75 4.00 2.00 3.50 ±0.10 ±0.10 ±0.10 ±0.05 A0 B0 K0 3.23 ±0.10 3.17 ±0.10 1.37 ±0.10 Doc ID 16887 Rev 2 P1 T Unit Bulk qty. 4.00 0.
Part numbering 6 STM6700, STM6710 Part numbering Table 8. Ordering information scheme Example: STM6710 F WB 6 F Device type STM6700(1) STM6710 Threshold combination Refer to Table 9 Package WB = SOT23-6 Temperature range 6 = –40 to +85 °C Shipping method F = ECOPACK® package, tape and reel packing 1. Contact local ST sales office for availability For other options, or for more information on any aspect of this device, please contact the ST sales office nearest you.
STM6700, STM6710 7 STM6700 / STM6710 device selector guide STM6700 / STM6710 device selector guide The STM6700/STM6710 are designed for various voltage thresholds and configurations, however not all variations are shown in Table 9. Please contact local ST sales office for availability. Table 9. STM6700/STM6710 device selector summary Monitored pins Part name Supply V1IN V2IN V3IN V4IN pin (V) (V) (V) (V) tREC (ms) Supply tolerance (%) Top marking Comments STM6710AWB6F 5 3.3 2.5 Adj.
Revision history 8 STM6700, STM6710 Revision history Table 10. 20/21 Document revision history Date Revision Changes 09-Dec-2009 1 Initial release. 15-May-2012 2 Added Table 4 and cross-reference to Table 4 in Section 3, updated Section 1, Table 9, minor corrections throughout document.
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