Datasheet HT16D31A/HT16D31B (Holtek) - 9

HT16D31A/HT16D31B HT16D31A/HT16D31B 8×9 Constant Current LED Driver 8×9 Constant Current LED Driver A.C. Characteristics – SPI 3-wire Serial Bus
VDD=2.7V~5.5V, Ta=25°C
Test Conditions Symbol Parameter Min. Typ. Max. Unit VDD Conditions
tCLK Clock Cycle Time — — 250 — — ns tCW Clock Pulse Width — — 100 — — ns tDS Data Setup Time — — 50 — — ns tHS Data Hold Time — — 50 — — ns tCSW “H” CSB Pulse Width — — 100 — — ns tCSL CSB Setup Time (CSB↓ ‒ CLK↓) — — 50 — — ns tCSH CS Hold Time (CLK↑ ‒ CSB↑) — — 4 — — μs t t PD=10 to 90% PD Data Output Delay Time (CLK ‒ DIO) — CO=15pF — — 350 ns tPD=10 to 10%
A.C. Characteristics – I2C Serial Bus
Ta=25°C
VDD=2.4V~5.5V VDD=3.0V~5.5V Symbol Parameter Conditions Unit Min. Max. Min. Max.
fSCL Clock Frequency — — 100 — 400 kHz Time in which the bus must be free tBUF Bus Free Time before a new transmission can 4.7 — 1.3 — μs start tHD:STA Start Condition Hold Time After this period, the first clock pulse is generated 4.0 — 0.6 — μs tLOW SCL Low Time — 4.7 — 1.3 — μs tHIGH SCL High Time — 4.0 — 0.6 — μs tSU:STA Start Condition Setup Time Only relevant for repeated START condition 4.7 — 0.6 — μs tHD:DAT Data Hold Time — 0 — 0 — ns tSU:DAT Data Setup Time — 250 — 100 — ns tR Note SDA and SCL Rise Time — — 1.0 — 0.3 μs tF Note SDA and SCL Fall Time — — 0.3 — 0.3 μs tSU:STO Stop Condition Setup Time — 4.0 － 0.6 — μs tAA Output Valid from Clock — — 3.5 — 0.9 μs t Input Filter Time Constant SP (SDA and SCL Pins) Noise suppression time — 20 — 20 ns Note: These parameters are periodically sampled but not 100% tested. Rev. 1.10 8 April 11, 2019 Rev. 1.10 9 April 11, 2019 Document Outline Features Applications General Description Selection Table Block Diagram Pin Assignment Pin Description Approximate Internal Connections Absolute Maximum Ratings D.C. Characteristics A.C. Characteristics A.C. Characteristics – SPI 3-wire Serial Bus A.C. Characteristics – IC Serial Bus Timing Diagrams SPI 3-Wire Serial Bus Timing I2C Bus Timing Power on Reset Timing Functional Description Power-on Reset LED Driver System Oscillator Driver Outputs Address Pointer Open/Short Detection Function Over Temperature Protection Constant Current Output Load Supply Voltage – LED_V Display Data RAM – DDRAM Fade Data RAM LED On/Off Control RAM Data CommandDescription Command Table Software Reset RAM Page Address Set Picture Start Page Address Movie Start Page Address Movie Playing Length Set Movie Cycle Time Set Movie Page Delay Time Last Page Set Picture Scrolling Control Display Mode Configuration Mode Fade Function Control Global Fade Time Cascade Mode System Control Constant Current Ratio Brightness Control Mode Control Blanking Control Voltage Setting Read Open Detection Data Read Short Detection Data Read Register Status Read Movie Frame Status Read Movie Loop Status Read Function Flag SPI 3-wire Serial Interface Write Operation Read Operation I2C Serial Interface Data Validity START and STOP Conditions Byte Format Acknowledge Slave Addressing Write Operation Read Operation Power Supply Sequence Operation Flow Charts Application Circuits LED Matrix Circuit RGB LED Matrix Circuit Single LED IC Application Cascade Function Cascade Control Flow Package Information 16-pin NSOP-EP (150mil) Outline Dimensions SAW Type 16-pin QFN (3mm×3mm for FP0.25mm) Outline Dimensions