HD64F36022 datasheet(15/384 Pages) RENESAS

15 / 384 page

Rev. 4.00 Sep. 23, 2005 Page xv of xxvi

Section 15 Power-On Reset and Low-Voltage Detection Circuits

(Optional).........................................................................................229

15.1

Features.............................................................................................................................. 229

15.2

Register Descriptions ......................................................................................................... 230

15.2.1 Low-Voltage-Detection Control Register (LVDCR) ............................................ 231

15.2.2 Low-Voltage-Detection Status Register (LVDSR)............................................... 232

15.3

Operation ........................................................................................................................... 233

15.3.1 Power-On Reset Circuit ........................................................................................ 233

15.3.2 Low-Voltage Detection Circuit............................................................................. 234

Section 16 Power Supply Circuit.......................................................................237

16.1

When Using Internal Power Supply Step-Down Circuit.................................................... 237

16.2

When Not Using Internal Power Supply Step-Down Circuit............................................. 238

Section 17 List of Registers ...............................................................................225

17.1

Register Addresses (Address Order) .................................................................................. 226

17.2

Register Bits....................................................................................................................... 230

17.3

Section 18 Electrical Characteristics .................................................................251

18.1

Absolute Maximum Ratings .............................................................................................. 251

18.2

Electrical Characteristics (F-ZTAT

TM Version).................................................................. 251

18.2.1 Power Supply Voltage and Operating Ranges ...................................................... 251

18.2.2 DC Characteristics ................................................................................................ 254

18.2.3 AC Characteristics ................................................................................................ 259

18.2.4 A/D Converter Characteristics .............................................................................. 262

18.2.5 Watchdog Timer Characteristics........................................................................... 263

18.2.6 Flash Memory Characteristics .............................................................................. 264

18.2.7 Power-Supply-Voltage Detection Circuit Characteristics (Optional) ................... 266

18.2.8 Power-On Reset Circuit Characteristics (Optional) .............................................. 267

18.3

Electrical Characteristics (Masked ROM Version)............................................................ 267

18.3.1 Power Supply Voltage and Operating Ranges ...................................................... 267

18.3.2 DC Characteristics ................................................................................................ 270

18.3.3 AC Characteristics ................................................................................................ 275

18.3.4 A/D Converter Characteristics .............................................................................. 278

18.3.5 Watchdog Timer Characteristics........................................................................... 279

18.3.6 Power-Supply-Voltage Detection Circuit Characteristics (Optional) ................... 280

18.3.7 Power-On Reset Circuit Characteristics (Optional) .............................................. 281

18.4

Operation Timing............................................................................................................... 281

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