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HT7106ARQZ44

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HTCSEMI Translators / Level Shifters, LQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HT7106ARQZ44

HTCSEMI · Translators / Level Shifters · LQFP-44(10x10)

HT7106ARQZ44 from HTCSEMI, in a LQFP-44(10x10). 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 NC unconnected No connection.
2 NC unconnected No connection.
3 TEST input Test pin, shown in the pinout as TEST; the datasheet gives no further function.
4 OSC3 passive Oscillator pin 3, used with OSC1 and OSC2 for the RC oscillator option.
5 NC unconnected No connection.
6 OSC2 passive Oscillator pin 2, used with a crystal between OSC1 and OSC2 or in the RC oscillator.
7 OSC1 input Oscillator pin 1, accepts an external clock, or a crystal or RC network; the clock frequency divided by 800 sets the backplane frequency.
8 V+ power_in Positive supply; the supply voltage (V+ to V-) is rated at 15 V absolute maximum and is 9.0 V in the electrical characteristics.
9 D1 output LCD segment D drive output for the units (1's) digit.
10 C1 output LCD segment C drive output for the units (1's) digit.
11 B1 output LCD segment B drive output for the units (1's) digit.
12 A1 output LCD segment A drive output for the units (1's) digit.
13 F1 output LCD segment F drive output for the units (1's) digit.
14 G1 output LCD segment G drive output for the units (1's) digit.
15 E1 output LCD segment E drive output for the units (1's) digit.
16 D2 output LCD segment D drive output for the tens (10's) digit.
17 C2 output LCD segment C drive output for the tens (10's) digit.
18 B2 output LCD segment B drive output for the tens (10's) digit.
19 A2 output LCD segment A drive output for the tens (10's) digit.
20 F2 output LCD segment F drive output for the tens (10's) digit.
21 E2 output LCD segment E drive output for the tens (10's) digit.
22 D3 output LCD segment D drive output for the hundreds (100's) digit.
23 B3 output LCD segment B drive output for the hundreds (100's) digit.
24 F3 output LCD segment F drive output for the hundreds (100's) digit.
25 E3 output LCD segment E drive output for the hundreds (100's) digit.
26 AB4 output LCD drive output for the thousands (1000) digit.
27 POL output LCD drive output for the minus polarity sign.
28 BP/GND output LCD backplane drive; the backplane frequency is the clock frequency divided by 800, and segments are in phase with it when OFF.
29 G3 output LCD segment G drive output for the hundreds (100's) digit.
30 A3 output LCD segment A drive output for the hundreds (100's) digit.
31 C3 output LCD segment C drive output for the hundreds (100's) digit.
32 G2 output LCD segment G drive output for the tens (10's) digit.
33 NC unconnected No connection.
34 V- power_in Negative supply; the analog input and reference voltage may range from V+ to V-.
35 INT passive Integrator output, connected to the integrating capacitor CINT (0.22uF suggested at a 48kHz clock).
36 BUFF passive Buffer amplifier output, connected to the integrating resistor RINT (47K for 200mV full scale, 470K for 2V full scale).
37 A-Z passive Auto-zero capacitor CAZ connection (0.47uF for 200.0mV full scale, 0.047uF for 2.000V full scale).
38 IN LO input Differential analog input low; the input range is V+ to V-.
39 IN HI input Differential analog input high; the input range is V+ to V-.
40 COMMON passive Analog common, typically 3.0 V below the positive supply (2.7 to 3.3 V) with 25K between common and the positive supply.
41 CREF- passive Negative connection of the reference capacitor (0.1uF suggested).
42 CREF+ passive Positive connection of the reference capacitor (0.1uF suggested).
43 REF LO input Differential reference voltage input low; the input range is V+ to V-.
44 REF HI input Differential reference voltage input high; the input range is V+ to V-.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package LQFP-44(10x10)
Category Logic ICs
Pins 44

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 Current IDD 0.8 1.8 mA VIN = 0 3
Leakage Current Input ILEAK 1 10 pA VIN = 0 3
Segment and Back Plane Drive Voltage VLCDS 4 5 6 V 3
Analog Common Voltage (With Respect to Positive Supply) VANACOM 2.7 3 3.3 V 25K Between Common and Positive Supply 3
Ratiometric Reading 999 999 1000 Digital Reading VIN = VREF =100.0mV 3
Linearity (Max. Deviation From Best Straight Line Fit) -1 0.2 1 Counts Full Scale 200.0mV or 2.000V 3
Rollover Error -1 0.2 1 Counts V-IN = V+IN =200.0mV 3
Zero Input Reading 0 0 0 Digital Reading VIN = 0, Full Scale 200.0mV 3
Noise (Pk-Pk Value Not exceeded 95% of Time) VN 15 V VIN = 0, Full Scale 200.0mV 3
Zero Reading Drift 0.2 1 V/ oC VIN = 0, 0 oC < TA < 70 oC 3
Scale Factor Temp Coeff. 1 5 ppm/ oC VIN = 199.0mV, 0 oC < TA < 70oC 3
Temp Coeff. of Analog Common 20 80 ppm/ oC 25K Between Common and Positive Supply 3
Common-mode Rejection Ratio 50 200 V/V Vcm= 1V, VIN =0V, Full Scale 200.0mV 3
Supply Voltage (V+ to V-) 15 V TA = 25oC 3
Power Dissipation 800 mW TA = 25oC 3
Operating Temperature Topr 0 70 oC TA = 25oC 3
Storage and Junction Temperature Tstg -55 150 oC TA = 25oC 3

CAD (KiCad official)

  • Symbol: HT7106ARQZ44
  • Footprint: Package_QFP:LQFP-44_10x10mm_P0.8mm
  • 3D model: LQFP-44(10x10) (KiCad packages3D, STEP)
  • 3D model files: ht7106arqz44-etched.step / ht7106arqz44-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7106arqz44.step / ht7106arqz44.glb are the bare package body.

Provenance

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

  • Datasheet: HTCSEMI datasheet (13 pp, sha256 34de09f4d2604d42, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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