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HT85163ARZ

Public Made by Adom

by adom

HTCSEMI Real Time Clocks, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HT85163ARZ

HTCSEMI · Real Time Clocks · SOP-8

HT85163ARZ from HTCSEMI, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OSCI input Input for the 32.768 kHz quartz resonator (internal load capacitance 12 pF), which can also be driven by an external 32.768 kHz oscillator signal.
2 OSCO output Output for the 32.768 kHz quartz resonator connection (internal load capacitance 12 pF), left unconnected when OSCI is driven by an external oscillator.
3 INT output Interruption output that is driven by an alarm match or by the timer countdown reaching 0; the alarm interruption is continuous, while the timer interruption can be continuous or pulsed depending on the TI/TP bit.
4 VSS power_in Common ground pin; all voltages on the device are specified relative to this pin.
5 SDA bidirectional Serial data input/output of the double-wire I2C-bus interface, configured as an open drain that requires an external pull-up resistor.
6 SCL input Serial clock input used to synchronize data transfer on the double-wire bus, with a cycle frequency of 0 to 400 kHz.
7 CLKOUT output Frequency divider output configured as an open drain that requires an external pull-up resistor, enabled by the FE bit and selected by the FD bits.
8 VDD power_in Supply pin rated from 1 V to 5.5 V (absolute maximum 6.5 V); interface access is not guaranteed below 1.8 V.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOP-8
Category Clock/Timing
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage (norm, recommended) VDD 1 5.5 V 3
Input voltage SCL, SDA, OSCI (norm) VI 0 5.5 V 3
Output voltage CLKOUT, INT (norm) VO 0 5.5 V 3
Operating temperature range TA -40 85 °C 3
Supply voltage (permissible limit) VDD -0.5 6.5 V 3
Input voltage SCL, SDA, OSCI (permissible limit) VI -0.5 6.5 V 3
Output voltage CLKOUT, INT (permissible limit) VO -0.5 6.5 V 3
Dissipated power Ptot 300 mWt 3
Direct input or output current via any pin IIO -10 10 mA 3
Supply voltage, I2C bus active VDD 1.8 5.5 V I2C bus active; FSCL = 400 kHz 3
Supply voltage, non-active mode VDD 1 5.5 V in the non-active mode 3
Input leakage current ILI 1 µA VIN =VDD; VIN =VSS 3
Output leakage current ILO 1 µA VOUT =VDD; VOUT =VSS 3
Consumption current, CLKOUT off, FSCL 400 kHz IDD1 800 µA CLKOUT-off, FSCL =400 kHz 3
Consumption current, CLKOUT off, FSCL 100 kHz IDD1 200 µA CLKOUT-off, FSCL =100 kHz 3
Consumption current, CLKOUT off, FSCL 0 kHz, VDD 5 V IDD1 0.55 µA CLKOUT-off, FSCL =0 kHz, VDD=5V 3
Consumption current, CLKOUT off, FSCL 0 kHz, VDD 2 V IDD1 0.45 µA CLKOUT-off, FSCL =0 kHz, VDD=2V 3
Low level output current at pin CLKOUT IOL1 1 mA VOL = 0.4 V, VDD =5 V 3
High level output current at pin CLKOUT IOH1 1 mA VOH = 4.6 V, VDD =5 V 3
Low level output current at pin INT IOL2 1 mA VOL = 0.4 V, VDD =5 V 3
Low level output current at pin SDA IOL3 3 mA VOL = 0.4 V, VDD =5 V 4
Supply low level, detected by the circuit VLOW 1 V Ta=(25 ± 5)°C (footnote 1) 4
Cycle frequency SCL fSCL 0 400 kHz 4
Bus vacant time between STOP and START tBUF 4.7 usec 4
Hold time (repeated) of the condition START tHD:STA 0.6 usec 4
Low condition duration of the SCL pulse tLOW 1.3 usec 4
High condition duration of the SCL pulse tHIGH 0.6 usec 4
Presetting time for the repeated condition START tSU:STA 0.6 usec 4
Data hold time tHD:DAT 0 usec 4
Data presetting time tSU:DAT 100 nsec 4
Rise time for signals SDA and SCL tR 300 nsec 4
Drop time for signals SDA and SCL tF 300 nsec 4
Presetting time for the condition STOP tSU:STO 0.6 usec 4
Total capacitance load on each bus line CB 400 pF 4
Capacity input/output CI/O 10 10 pF 4
Load capacitance of the quartz resonator CLX 12.5 12.5 pF 4

CAD (KiCad official)

  • Symbol: HT85163ARZ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ht85163arz-etched.step / ht85163arz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht85163arz.step / ht85163arz.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HTCSEMI datasheet (13 pp, sha256 6828edcb07bbb452, retrieved 2026-10-20, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF