STM6821RWY6F STMicroelectronics

STM632x, STM682x 5-pin supervisor with watchdog timer and push-button reset Datasheet - production data Features Precision V monitoring of 5, 3.3, 3, or 2.5 V CC power supplies RST outputs (active low, push-pull or open drain) RST outputs (active high, push-pull) Reset pulse width of 1.4 ms, 200 ms and 240 ms (typ.) Watchdog timeout period of 1.6 s (typ.) Manual reset input (MR) Low supply current - 3 A (typ.) SOT23-5 (WY) Guaranteed RST (RST) assertion down to V = 1.0 V CC Operating temperature: 40 to +85 C (industrial grade) RoHS compliance Lead-free components are compliant with the RoHS directive Table 1. Device summary Reset output Watchdog Manual Part number input reset input Active low Active high Active low (push-pull) (push-pull) (open drain) STM6321 STM632x STM6322 STM6821 STM6822 STM682x STM6823 STM6824 STM6825 June 2016 DocID11110 Rev 13 1/31 This is information on a product in full production. www.st.comContents STM632x, STM682x Contents 1 Description . 5 1.1 Pin description 7 1.1.1 Active low, push-pull reset output (RST) - 6823/6824/6825 7 1.1.2 Active low, open drain reset output (RST) - STM6321/6322/6822 . 7 1.1.3 Push-button reset input (MR) 7 1.1.4 Watchdog input (WDI) . 7 1.1.5 Active high reset output (RST) . 7 2 Operation . 10 2.1 Reset output . 10 2.2 Open drain RST output 10 2.3 Push-button reset input (STM6322/6821/6822/6823/6825) 11 2.4 Watchdog input (STM6321/6821/6822/6823/6824) 11 2.5 Applications information .11 2.5.1 Watchdog input current . 11 2.5.2 Ensuring a valid reset output down to V = 0 V 11 CC 2.6 Interfacing to microprocessors with bidirectional reset pins . 12 3 Typical operating characteristics . 13 4 Maximum ratings . 18 5 DC and AC parameters 19 6 Package information 24 6.1 SOT23-5 package information . 25 7 Part numbering 27 8 Revision history . 30 2/31 DocID11110 Rev 13