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R7KA8M2AFECAC bảng dữ liệu(HTML) 264 Page - Renesas Technology Corp |
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264 / 295 page  Table 2.114 Battery backup function characteristics (2 of 2) Conditions: VCC = VCC_DCDC = VCC_USB = 1.62 to 3.63 V, VBATT = 1.62 to 3.63 V Parameter Symbol Min Typ Max Unit Test conditions Backup domain power-down detection level VPDR (BATR) 1.43 1.47 1.52 V Figure 2.148 Time delay in assertion of the reset signal for the backup domain*3 tp (PDRL) — — 2000 µs Time delay in negation of the reset signal for the backup domain tp (PDRH) — — 3000 VBATT monitor operation stabilization time (after VBATTMNSELR.VBTMNSEL is changed to 1) tMONWT — — 4.2 µs — VBATT voltage monitor level VMONBATT — VBATT / 6 — V — VBATT current increase (when VBATTMNSELR.VBTTMNSEL is 1 compared to the case that VBATTMNSELR.VBTTMNSEL is 0) IVBATTSELB — 1.35 2.00 µA — VCC current increase (when VBATTMNSELR.VBTTMNSEL is 1 compared to the case that VBATTMNSELR.VBTTMNSEL is 0) IVBATTSELC — 15 25 µA — Note 1. The VCC-off period for starting power supply switching indicates the period in which VCC is below the minimum value of the voltage level for switching to battery backup (VDETBATT). In addition, this period indicates the time tVOFFP when VCC is below the minimum value of voltage detection levels VPOR1. Note 2. Stable time when VBTBPCR2.VDETLVL is changed or VBTBPCR1. BPWSWSTP is changed from 1 to 0. Note 3. When the VBATT_R recovers within this period, the backup domain reset signal may not be generated. VCC tVOFFBATT VDETBATT VBATTSW VBATT VCC supply VBATT supply VCC supply Backup power area Figure 2.147 Battery backup function characteristics RA8M2 Datasheet 2. Electrical Characteristics R01DS0438EJ0130 Rev.1.30 Feb 27, 2026 Page 264 of 295 |
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