Datasheet HT45B3305H (Holtek) - 7
| Manufacturer | Holtek |
| Description | CAN Bus Controller |
| Pages / Page | 60 / 7 — HT45B3305H. CAN Bus Controller. A.C. Characteristics. System Frequency … |
| File Format / Size | PDF / 1.7 Mb |
| Document Language | English |
HT45B3305H. CAN Bus Controller. A.C. Characteristics. System Frequency Characteristics. Test Conditions. Symbol. Parameter. Min. Typ. Max
Model Line for this Datasheet
Text Version of Document
HT45B3305H HT45B3305H CAN Bus Controller CAN Bus Controller A.C. Characteristics
For data in the following tables, note that factors such as oscillator type, operating voltage, operating frequency and temperature etc., can all exert an influence on the measured values.
System Frequency Characteristics
Ta=-40°C~125°C, unless otherwise specified.
Test Conditions Symbol Parameter Min. Typ. Max. Unit VDD Conditions
3.0V~5.5V fSYS=fHXT=8MHz — 8 — MHz fSYS System clock (HXT) 3.0V~5.5V fSYS=fHXT=16MHz — 16 — MHz 4.5V~5.5V fSYS=fHXT=24MHz — 24 — MHz
Timing Characteristics
Ta=-40°C~125°C, unless otherwise specified.
Test Conditions Symbol Parameter Min. Typ. Max. Unit VDD Conditions
tRES External Reset Minimum Low Pulse Width — — 10 — — μs 3V — — 25 ms tSTART(HXT) HXT Oscillator Startup Time fSYS=fHXT=16MHz 5V — — 10 ms No clock debounce 2 — — MHz I2C Standard Mode (100kHz) fSYS Frequency 3.0V~ 5.5V 2 system clock debounce 4 — — MHz 4 system clock debounce 8 — — MHz fI2C No clock debounce 5 — — MHz I2C Fast Mode (400kHz) 3.0V~ f 2 system clock debounce 10 — — MHz SYS Frequency 5.5V 4 system clock debounce 20 — — MHz fSPI SPI Mode Frequency — — — — 10 MHz tITO I2C Timeout Period 3.0V~ 5.5V fSYS=fHXT=16MHz 40 — — ms tSOF SOF signal width — fSYS=fHXT=24MHz, SOFT[2:0]=101 9.6 10.6 11.6 μs
CAN Electrical Characteristics
Ta=-40°C~125°C, unless otherwise specified.
Test Conditions Symbol Parameter Min. Typ. Max. Unit VDD Conditions
— fCAN=8MHz 3.0 — 5.5 V VDD Operating Voltage (HXT) — fCAN=16MHz 3.0 — 5.5 V — fCAN=24MHz 4.5 — 5.5 V 3.0V~5.5V — 8 — MHz fCAN System Clock (HXT) 3.0V~5.5V — — 16 — MHz 4.5V~5.5V — 24 — MHz 3.0V~5.5V — 8 — MHz fMCLK Memory Clock (HXT) 3.0V~5.5V — — 16 — MHz 4.5V~5.5V — 24 — MHz Rev. 1.00 6 December 25, 2019 Rev. 1.00 7 December 25, 2019 Document Outline Features Applications General Description Block Diagram Pin Assignment Pin Description Absolute Maximum Ratings D.C. Characteristics A.C. Characteristics System Frequency Characteristics Timing Characteristics Operating Voltage Characteristics Operating Current Characteristics Standby Current Characteristics CAN Electrical Characteristics Power-on Reset Characteristics Power Control Function CLKOUT Pin IDLE Mode SLEEP Mode and Wake-up Functional Description Write Buffer and Data Check SPI and I2C Frame Fields SPI Serial Interface I2C Serial Interface HT45B3305H CAN Block Diagram Interrupt Output Pins Message RAM and FIFO Buffer Configuration HT45B3305H CAN Operating Modes CAN Application Register Description Register Map Register Reset Condition Register Description Application Circuits SPI Serial Interface I2C Serial Interface Package Information 16-pin NSOP (150mil) Outline Dimensions SAW Type 16-pin QFN (3mm×3mm for FP0.25mm) Outline Dimensions
For data in the following tables, note that factors such as oscillator type, operating voltage, operating frequency and temperature etc., can all exert an influence on the measured values.
System Frequency Characteristics
Ta=-40°C~125°C, unless otherwise specified.
Test Conditions Symbol Parameter Min. Typ. Max. Unit VDD Conditions
3.0V~5.5V fSYS=fHXT=8MHz — 8 — MHz fSYS System clock (HXT) 3.0V~5.5V fSYS=fHXT=16MHz — 16 — MHz 4.5V~5.5V fSYS=fHXT=24MHz — 24 — MHz
Timing Characteristics
Ta=-40°C~125°C, unless otherwise specified.
Test Conditions Symbol Parameter Min. Typ. Max. Unit VDD Conditions
tRES External Reset Minimum Low Pulse Width — — 10 — — μs 3V — — 25 ms tSTART(HXT) HXT Oscillator Startup Time fSYS=fHXT=16MHz 5V — — 10 ms No clock debounce 2 — — MHz I2C Standard Mode (100kHz) fSYS Frequency 3.0V~ 5.5V 2 system clock debounce 4 — — MHz 4 system clock debounce 8 — — MHz fI2C No clock debounce 5 — — MHz I2C Fast Mode (400kHz) 3.0V~ f 2 system clock debounce 10 — — MHz SYS Frequency 5.5V 4 system clock debounce 20 — — MHz fSPI SPI Mode Frequency — — — — 10 MHz tITO I2C Timeout Period 3.0V~ 5.5V fSYS=fHXT=16MHz 40 — — ms tSOF SOF signal width — fSYS=fHXT=24MHz, SOFT[2:0]=101 9.6 10.6 11.6 μs
CAN Electrical Characteristics
Ta=-40°C~125°C, unless otherwise specified.
Test Conditions Symbol Parameter Min. Typ. Max. Unit VDD Conditions
— fCAN=8MHz 3.0 — 5.5 V VDD Operating Voltage (HXT) — fCAN=16MHz 3.0 — 5.5 V — fCAN=24MHz 4.5 — 5.5 V 3.0V~5.5V — 8 — MHz fCAN System Clock (HXT) 3.0V~5.5V — — 16 — MHz 4.5V~5.5V — 24 — MHz 3.0V~5.5V — 8 — MHz fMCLK Memory Clock (HXT) 3.0V~5.5V — — 16 — MHz 4.5V~5.5V — 24 — MHz Rev. 1.00 6 December 25, 2019 Rev. 1.00 7 December 25, 2019 Document Outline Features Applications General Description Block Diagram Pin Assignment Pin Description Absolute Maximum Ratings D.C. Characteristics A.C. Characteristics System Frequency Characteristics Timing Characteristics Operating Voltage Characteristics Operating Current Characteristics Standby Current Characteristics CAN Electrical Characteristics Power-on Reset Characteristics Power Control Function CLKOUT Pin IDLE Mode SLEEP Mode and Wake-up Functional Description Write Buffer and Data Check SPI and I2C Frame Fields SPI Serial Interface I2C Serial Interface HT45B3305H CAN Block Diagram Interrupt Output Pins Message RAM and FIFO Buffer Configuration HT45B3305H CAN Operating Modes CAN Application Register Description Register Map Register Reset Condition Register Description Application Circuits SPI Serial Interface I2C Serial Interface Package Information 16-pin NSOP (150mil) Outline Dimensions SAW Type 16-pin QFN (3mm×3mm for FP0.25mm) Outline Dimensions
