Datasheet

Rev. 6.00 Mar. 24, 2006 Page xvi of xxviii
16.6.1 Permissible Signal Source Impedance.............................................................. 286
16.6.2 Influences on Absolute Accuracy..................................................................... 286
Section 17 EEPROM.........................................................................................287
17.1 Features............................................................................................................................. 287
17.2 Input/Output Pins.............................................................................................................. 289
17.3 Register Description ......................................................................................................... 289
17.3.1 EEPROM Key Register (EKR)......................................................................... 289
17.4 Operation .......................................................................................................................... 290
17.4.1 EEPROM Interface........................................................................................... 290
17.4.2 Bus Format and Timing.................................................................................... 290
17.4.3 Start Condition.................................................................................................. 291
17.4.4 Stop Condition.................................................................................................. 291
17.4.5 Acknowledge.................................................................................................... 291
17.4.6 Slave Addressing .............................................................................................. 292
17.4.7 Write Operations............................................................................................... 293
17.4.8 Acknowledge Polling........................................................................................ 294
17.4.9 Read Operation ................................................................................................. 295
17.5 Usage Notes...................................................................................................................... 297
17.5.1 Data Protection at V
CC
On/Off........................................................................... 297
17.5.2 Write/Erase Endurance ..................................................................................... 297
17.5.3 Noise Suppression Time................................................................................... 298
Section 18 Power Supply Circuit ......................................................................299
18.1 When Using Internal Power Supply Step-Down Circuit .................................................. 299
18.2 When Not Using Internal Power Supply Step-Down Circuit ........................................... 300
Section 19 List of Registers...............................................................................301
19.1 Register Addresses (Address Order)................................................................................. 302
19.2 Register Bits ..................................................................................................................... 305
19.3 Register States in Each Operating Mode .......................................................................... 308
Section 20 Electrical Characteristics.................................................................311
20.1 Absolute Maximum Ratings ............................................................................................. 311
20.2 Electrical Characteristics (F-ZTAT™ Version, F-ZTAT™ Version with EEPROM) ..... 311
20.2.1 Power Supply Voltage and Operating Ranges.................................................. 311
20.2.2 DC Characteristics............................................................................................ 314
20.2.3 AC Characteristics............................................................................................ 320
20.2.4 A/D Converter Characteristics.......................................................................... 324
20.2.5 Watchdog Timer Characteristics....................................................................... 325