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TS824CX5ERF Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd |
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TS824CX5ERF Datasheet(HTML) 1 Page - Taiwan Semiconductor Company, Ltd |
1 / 8 page TS823/824/825 Series Microprocessor Supervisory Circuit with Watchdog Timer & Manual Reset 1/8 Version: B07 SOT-25 General Description The TS823/824/825 family allows the user to customize the CPU monitoring function without any external components. The user has a large choice of reset voltage thresholds and output driver configurations, all of which are present ant the factory. Each wafer is trimmed to the customer’s specifications. These circuits will ignore fast negative going transients on Vdd. The state of the reset output is guaranteed to be correct down to 1V. After Vdd crosses above a factory present threshold, the TS823/824/825 assert a reset signal. After a predetermined time (the “reset” interval) the reset is deasserted. If Vdd ever drops below the threshold voltage a reset is asserted immediately. In addition to a supply monitoring function the TS823/824/825 also monitor transitions at the watchdog (WDI) input. If a logic transition does not occur at the WDI pin within a certain time interval (the “watchdog” interval) then a reset is asserted. The reset deasserts after the reset interval, as explained earlier. The TS823/824/825 can both assert a reset manually by pulling the MR input to ground, and the micro-power quiescent current make this family a natural for portable battery powered equipment. Ordering Information Note: x is the threshold voltage type, option as A : 4.63V B : 4.38V D : 3.08V E : 2.93V F : 2.63V G : 2.32V H : 2.19V Contact factory for additional voltage option Part No. Package Packing TS823CX5x RF SOT-25 3Kpcs / 7” Reel TS824CX5x RF SOT-25 3Kpcs / 7” Reel TS825CX5x RF SOT-25 3Kpcs / 7” Reel Features ● Precision monitoring of +3V, +3.3V and +5V power supply voltage ● Tight voltage threshold tolerance +/-1.5% ● Fully specified over temperature ● 210mS min. power-on reset pulse width ● 3uA(typ) supply current ● Guaranteed reset valid to Vdd = +1V ● Power supply transient immunity ● No external components Applications ● Computers and Controllers ● Embedded Controllers ● Intelligent instruments ● Critical uP monitoring ● Portable / Battery powered equipment ● Automotive Systems Pin Descriptions Function TS823 TS824 TS825 RESET (Active-Low) 1 1 1 Ground 2 2 2 Manual Reset 3 - 4 (RESET) (Active-High) - 3 3 Watchdog Input 4 4 - Supply Voltage (Vdd) 5 5 5 Absolute Maximum Rating Parameter Symbol Maximum Unit Supply Voltage Vdd 6.0 V Supply Voltage - Recommended Vdd 0.9 ~ 5 V Operating Junction Temperature Range TOP -40 ~ +125 oC Storage Temperature Range TSTG -65 ~ +150 oC Thermal Resistance Θjc 256 oC/W Maximum Lead Temperature (260 oC) TLEAD 10 S Notes: Stress above the listed absolute rating may cause permanent damage to the device. |
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