component
74VHC163FT
Public Made by Adomby adom
TOSHIBA Counters, Dividers, TSSOP-16-175mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown74VHC163FT
TOSHIBA · Counters, Dividers · TSSOP-16-175mil
74VHC163FT from TOSHIBA, in a TSSOP-16-175mil. 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 | CLR | input | Active-low synchronous clear input for the 74VHC163FT (clear is synchronous to CK); accepts 0 to 5.5 V. |
| 2 | CK | input | Clock input, active on the rising edge; accepts 0 to 5.5 V. |
| 3 | A | input | Preset data input A, loaded synchronously on the rising edge of CK when LOAD is low. |
| 4 | B | input | Preset data input B, loaded synchronously on the rising edge of CK when LOAD is low. |
| 5 | C | input | Preset data input C, loaded synchronously on the rising edge of CK when LOAD is low. |
| 6 | D | input | Preset data input D, loaded synchronously on the rising edge of CK when LOAD is low. |
| 7 | ENP | input | Count enable input P, used with ENT to enable counting and cascading of counters. |
| 8 | GND | power_in | Ground pin; 0 V reference. |
| 9 | LOAD | input | Active-low preset load input, synchronous to the rising edge of CK. |
| 10 | ENT | input | Count enable input T, also gates the carry output (Carry = ENT·QA·QB·QC·QD) for cascading. |
| 11 | QD | output | Counter output QD, the most significant bit of the 4-bit binary counter. |
| 12 | QC | output | Counter output QC of the 4-bit binary counter. |
| 13 | QB | output | Counter output QB of the 4-bit binary counter. |
| 14 | QA | output | Counter output QA, the least significant bit of the 4-bit binary counter. |
| 15 | Carry Output | output | Carry output (Carry = ENT·QA·QB·QC·QD) provided for easy cascading of counters. |
| 16 | VCC | power_in | Positive supply voltage; operating range 2.0 V to 5.5 V (absolute max -0.5 to 7.0 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | TSSOP-16-175mil |
| Category | Logic |
| Pins | 16 |
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 (absolute maximum) | VCC | -0.5 | 7 | V | 6 | ||
| Input voltage (absolute maximum) | VIN | -0.5 | 7 | V | 6 | ||
| Output voltage (absolute maximum; printed max is VCC + 0.5 V, not numeric) | VOUT | -0.5 | V | 6 | |||
| Input diode current (absolute maximum, printed as -20) | IIK | -20 | mA | 6 | |||
| Output diode current (absolute maximum) | IOK | -20 | 20 | mA | 6 | ||
| Output current (absolute maximum) | IOUT | -25 | 25 | mA | 6 | ||
| VCC/ground current (absolute maximum) | ICC | -50 | 50 | mA | 6 | ||
| Power dissipation (absolute maximum) | PD | 180 | mW | Ta = -40 to 85 °C; derate -3.25 mW/°C from Ta = 85 to 125 °C until 50 mW | 6 | ||
| Storage temperature (absolute maximum) | Tstg | -65 | 150 | °C | 6 | ||
| Supply voltage (operating range) | VCC | 2 | 5.5 | V | 6 | ||
| Input voltage (operating range) | VIN | 0 | 5.5 | V | 6 | ||
| Output voltage (operating range; printed max is VCC, not numeric) | VOUT | 0 | V | 6 | |||
| Operating temperature | Topr | -40 | 125 | °C | 6 | ||
| Input rise and fall time | dt/dv | 0 | 100 | ns/V | VCC = 3.3 ± 0.3 V | 6 | |
| Input rise and fall time | dt/dv | 0 | 20 | ns/V | VCC = 5 ± 0.5 V | 6 | |
| High-level input voltage (Ta = 25 °C) | VIH | 1.5 | V | VCC = 2.0 V; Ta = 25 °C | 7 | ||
| Low-level input voltage (Ta = 25 °C) | VIL | 0.5 | V | VCC = 2.0 V; Ta = 25 °C | 7 | ||
| High-level output voltage (Ta = 25 °C) | VOH | 1.9 | V | VCC = 2.0 V; VIN = VIH or VIL; IOH = -50 µA; Ta = 25 °C | 7 | ||
| High-level output voltage (Ta = 25 °C) | VOH | 2.9 | V | VCC = 3.0 V; VIN = VIH or VIL; IOH = -50 µA; Ta = 25 °C | 7 | ||
| High-level output voltage (Ta = 25 °C) | VOH | 4.4 | V | VCC = 4.5 V; VIN = VIH or VIL; IOH = -50 µA; Ta = 25 °C | 7 | ||
| High-level output voltage (Ta = 25 °C) | VOH | 2.58 | V | VCC = 3.0 V; VIN = VIH or VIL; IOH = -4 mA; Ta = 25 °C | 7 | ||
| High-level output voltage (Ta = 25 °C) | VOH | 3.94 | V | VCC = 4.5 V; VIN = VIH or VIL; IOH = -8 mA; Ta = 25 °C | 7 | ||
| Low-level output voltage (Ta = 25 °C) | VOL | 0.1 | V | VCC = 2.0 V; VIN = VIH or VIL; IOL = 50 µA; Ta = 25 °C | 7 | ||
| Low-level output voltage (Ta = 25 °C) | VOL | 0.36 | V | VCC = 3.0 V; VIN = VIH or VIL; IOL = 4 mA; Ta = 25 °C | 7 | ||
| Input leakage current (Ta = 25 °C) | IIN | -0.1 | 0.1 | µA | VCC = 0 to 5.5 V; VIN = 5.5 V or GND; Ta = 25 °C | 7 | |
| Quiescent supply current (Ta = 25 °C) | ICC | 4 | µA | VCC = 5.5 V; VIN = VCC or GND; Ta = 25 °C | 7 | ||
| High-level input voltage (Ta = -40 to 85 °C) | VIH | 1.5 | V | VCC = 2.0 V; Ta = -40 to 85 °C | 7 | ||
| Low-level input voltage (Ta = -40 to 85 °C) | VIL | 0.5 | V | VCC = 2.0 V; Ta = -40 to 85 °C | 7 | ||
| High-level output voltage (Ta = -40 to 85 °C) | VOH | 1.9 | V | VCC = 2.0 V; VIN = VIH or VIL; IOH = -50 µA; Ta = -40 to 85 °C | 7 | ||
| High-level output voltage (Ta = -40 to 85 °C) | VOH | 2.9 | V | VCC = 3.0 V; VIN = VIH or VIL; IOH = -50 µA; Ta = -40 to 85 °C | 7 | ||
| High-level output voltage (Ta = -40 to 85 °C) | VOH | 4.4 | V | VCC = 4.5 V; VIN = VIH or VIL; IOH = -50 µA; Ta = -40 to 85 °C | 7 | ||
| High-level output voltage (Ta = -40 to 85 °C) | VOH | 2.48 | V | VCC = 3.0 V; VIN = VIH or VIL; IOH = -4 mA; Ta = -40 to 85 °C | 7 | ||
| High-level output voltage (Ta = -40 to 85 °C) | VOH | 3.8 | V | VCC = 4.5 V; VIN = VIH or VIL; IOH = -8 mA; Ta = -40 to 85 °C | 7 | ||
| Low-level output voltage (Ta = -40 to 85 °C) | VOL | 0.1 | V | VCC = 2.0 V; VIN = VIH or VIL; IOL = 50 µA; Ta = -40 to 85 °C | 7 | ||
| Low-level output voltage (Ta = -40 to 85 °C) | VOL | 0.44 | V | VCC = 3.0 V; VIN = VIH or VIL; IOL = 4 mA; Ta = -40 to 85 °C | 7 | ||
| Input leakage current (Ta = -40 to 85 °C) | IIN | -1 | 1 | µA | VCC = 0 to 5.5 V; VIN = 5.5 V or GND; Ta = -40 to 85 °C | 7 | |
| Quiescent supply current (Ta = -40 to 85 °C) | ICC | 40 | µA | VCC = 5.5 V; VIN = VCC or GND; Ta = -40 to 85 °C | 7 | ||
| High-level input voltage (Ta = -40 to 125 °C) | VIH | 1.5 | V | VCC = 2.0 V; Ta = -40 to 125 °C | 8 | ||
| Low-level input voltage (Ta = -40 to 125 °C) | VIL | 0.5 | V | VCC = 2.0 V; Ta = -40 to 125 °C | 8 | ||
| High-level output voltage (Ta = -40 to 125 °C) | VOH | 1.9 | V | VCC = 2.0 V; VIN = VIH or VIL; IOH = -50 µA; Ta = -40 to 125 °C | 8 | ||
| High-level output voltage (Ta = -40 to 125 °C) | VOH | 2.9 | V | VCC = 3.0 V; VIN = VIH or VIL; IOH = -50 µA; Ta = -40 to 125 °C | 8 | ||
| High-level output voltage (Ta = -40 to 125 °C) | VOH | 4.4 | V | VCC = 4.5 V; VIN = VIH or VIL; IOH = -50 µA; Ta = -40 to 125 °C | 8 | ||
| High-level output voltage (Ta = -40 to 125 °C) | VOH | 2.4 | V | VCC = 3.0 V; VIN = VIH or VIL; IOH = -4 mA; Ta = -40 to 125 °C | 8 | ||
| High-level output voltage (Ta = -40 to 125 °C) | VOH | 3.7 | V | VCC = 4.5 V; VIN = VIH or VIL; IOH = -8 mA; Ta = -40 to 125 °C | 8 | ||
| Low-level output voltage (Ta = -40 to 125 °C) | VOL | 0.1 | V | VCC = 2.0 V; VIN = VIH or VIL; IOL = 50 µA; Ta = -40 to 125 °C | 8 | ||
| Low-level output voltage (Ta = -40 to 125 °C) | VOL | 0.55 | V | VCC = 3.0 V; VIN = VIH or VIL; IOL = 4 mA; Ta = -40 to 125 °C | 8 | ||
| Input leakage current (Ta = -40 to 125 °C) | IIN | -2 | 2 | µA | VCC = 0 to 5.5 V; VIN = 5.5 V or GND; Ta = -40 to 125 °C | 8 | |
| Quiescent supply current (Ta = -40 to 125 °C) | ICC | 80 | µA | VCC = 5.5 V; VIN = VCC or GND; Ta = -40 to 125 °C | 8 |
CAD (KiCad official)
- Symbol:
74VHC163FT - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16-175mil (KiCad packages3D, STEP)
- 3D model files:
74vhc163ft-etched.step/74vhc163ft-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74vhc163ft.step/74vhc163ft.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (17 pp, sha256
40d97dedc9e79c02, retrieved 2026-10-19, 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).