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M16C/26 데이터시트(PDF) 180 Page - Renesas Technology Corp |
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M16C/26 데이터시트(HTML) 180 Page - Renesas Technology Corp |
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180 / 239 page ![]() Renesas Technology Corp. Electrical Characteristics 174 M16C/26 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Under development Preliminary Specifications Rev. 0.9 Specifications in this manual are tentative and subject to change. Table 1.18.6. Low Voltage Detection Circuit Electrical Characteristics (Note 1) Symbol Standard Typ. Unit Measuring condition Min.Max. Parameter Vdet4 Power supply down detection voltage (Note 1) V 3.8 4.4 3.3 Vdet3 Reset level detection voltage (Note 1) V 2.8 3.6 2.2 V 0.8 2.9 4.0 Vdet3s Low voltage reset retention voltage (Note 2) Vdet3r Low voltage reset release voltage 2.2 V Note 1: VDET4 > VDET3 Note 2: VDET3s is the min voltage at which "hardware reset 2" is maintained. Below this voltage, "hardware reset 1" (using reset pin) must be applied in order to resume operation. VCC = 0.8 to 5.5V Table 1.18.7. Power Supply Circuit Timing Characteristics µs Symbol Standard Typ. Unit Measuring condition Min.Max. Parameter 150 150 6 (Note 1) 50 td(W-S) 20 td(M-L) Time for internal power supply stabilization when main clock oscillation starts 20 td(S-R) Hardware reset 2 release wait time µs td(E-A) Low voltage detection circuit operation start time (Note 3) µs µs ms td(R-S) S release time (Note 2) TOP Low power dissipation mode wait mode release time (Note 2) Note 1: When Vcc = 5V Note 2: This is the time between interrupt for (STOP/WAIT) mode release and resumption of CPU clock operation. Note 3: After enabling low voltage detection, this time is required before proper detection can occur. VCC = 2.7 to 5.5V VCC = VDET3r to 5.5V VCC = 2.7 to 5.5V Table 1.18.8. Hardware Reset 2 Release Wait Time CPU clock td(S-R) Vdet3r VCC Table 1.18.9. STOP Release Time Interrupt for stop mode release CPU clock td(R-S) |
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