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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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ht7106arqz44.step/ht7106arqz44.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# 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](docs/ht7106arqz44-datasheet.pdf) (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](docs/ht7106arqz44-datasheet.pdf)