component
74HC244PWRG
Public Made by Adomby adom
HANSCHIP semiconductor Buffers, Drivers, Receivers, Transceivers, TSSOP-20. 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
markdown74HC244PWRG
HANSCHIP semiconductor · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
74HC244PWRG from HANSCHIP semiconductor, in a TSSOP-20. 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 | 1OE | input | Output enable input (active LOW); a HIGH level on 1OE forces outputs 1Y0 to 1Y3 into the high-impedance OFF-state. |
| 2 | 1A0 | input | Data input for buffer channel 1A0; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 3 | 2Y0 | tri_state | Non-inverting 3-state bus output of buffer channel 2Y0, high-impedance when 2OE is HIGH. |
| 4 | 1A1 | input | Data input for buffer channel 1A1; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 5 | 2Y1 | tri_state | Non-inverting 3-state bus output of buffer channel 2Y1, high-impedance when 2OE is HIGH. |
| 6 | 1A2 | input | Data input for buffer channel 1A2; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 7 | 2Y2 | tri_state | Non-inverting 3-state bus output of buffer channel 2Y2, high-impedance when 2OE is HIGH. |
| 8 | 1A3 | input | Data input for buffer channel 1A3; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 9 | 2Y3 | tri_state | Non-inverting 3-state bus output of buffer channel 2Y3, high-impedance when 2OE is HIGH. |
| 10 | GND | power_in | Ground reference (0 V) for the device. |
| 11 | 2A3 | input | Data input for buffer channel 2A3; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 12 | 1Y3 | tri_state | Non-inverting 3-state bus output of buffer channel 1Y3, high-impedance when 1OE is HIGH. |
| 13 | 2A2 | input | Data input for buffer channel 2A2; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 14 | 1Y2 | tri_state | Non-inverting 3-state bus output of buffer channel 1Y2, high-impedance when 1OE is HIGH. |
| 15 | 2A1 | input | Data input for buffer channel 2A1; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 16 | 1Y1 | tri_state | Non-inverting 3-state bus output of buffer channel 1Y1, high-impedance when 1OE is HIGH. |
| 17 | 2A0 | input | Data input for buffer channel 2A0; inputs have clamp diodes that allow current-limiting resistors for interfacing to voltages above VCC. |
| 18 | 1Y0 | tri_state | Non-inverting 3-state bus output of buffer channel 1Y0, high-impedance when 1OE is HIGH. |
| 19 | 2OE | input | Output enable input (active LOW); a HIGH level on 2OE forces outputs 2Y0 to 2Y3 into the high-impedance OFF-state. |
| 20 | VCC | power_in | Supply voltage; the 74HC244 is specified for 2.0 V to 6.0 V and the 74HCT244 for 4.5 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
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 | VCC | -0.5 | 7 | V | 4 | ||
| input clamping current | IIK | -20 | 20 | mA | VI < -0.5V or VI > VCC+0.5V | 4 | |
| output clamping current | IOK | -20 | 20 | mA | VO < -0.5V or VO > VCC+0.5V | 4 | |
| output current | IO | -35 | 35 | mA | -0.5V < VO < VCC+0.5V | 4 | |
| supply current | ICC | 70 | mA | 4 | |||
| ground current | IGND | -70 | mA | 4 | |||
| storage temperature | Tstg | -65 | 150 | ℃ | 4 | ||
| total power dissipation | Ptot | 500 | mW | 4 | |||
| supply voltage (74HC244) | VCC | 2 | 5 | 6 | V | 4 | |
| input voltage | VI | 0 | V | 4 | |||
| output voltage | VO | 0 | V | 4 | |||
| input transition rise and fall rate | Δt/ΔV | 625 | ns/V | VCC=2.0V | 4 | ||
| input transition rise and fall rate | Δt/ΔV | 1.67 | 139 | ns/V | VCC=4.5V | 4 | |
| input transition rise and fall rate | Δt/ΔV | 83 | ns/V | VCC=6.0V | 4 | ||
| ambient temperature | Tamb | -40 | 85 | ℃ | 4 | ||
| HIGH-level input voltage | VIH | 1.5 | V | Tamb=-40℃ to +85℃; VCC=2.0V | 6 | ||
| HIGH-level input voltage | VIH | 3.15 | V | Tamb=-40℃ to +85℃; VCC=4.5V | 6 | ||
| HIGH-level input voltage | VIH | 4.2 | V | Tamb=-40℃ to +85℃; VCC=6.0V | 6 | ||
| LOW-level input voltage | VIL | 0.5 | V | Tamb=-40℃ to +85℃; VCC=2.0V | 6 | ||
| LOW-level input voltage | VIL | 1.35 | V | Tamb=-40℃ to +85℃; VCC=4.5V | 6 | ||
| LOW-level input voltage | VIL | 1.8 | V | Tamb=-40℃ to +85℃; VCC=6.0V | 6 | ||
| HIGH-level output voltage | VOH | 1.9 | V | Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V | 6 | ||
| HIGH-level output voltage | VOH | 4.4 | V | Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V | 6 | ||
| HIGH-level output voltage | VOH | 5.9 | V | Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V | 6 | ||
| HIGH-level output voltage | VOH | 3.84 | V | Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-6.0mA; VCC=4.5V | 6 | ||
| HIGH-level output voltage | VOH | 5.34 | V | Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-7.8mA; VCC=6.0V | 6 | ||
| LOW-level output voltage | VOL | 0.1 | V | Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=20uA; VCC=2.0V | 6 | ||
| LOW-level output voltage | VOL | 0.33 | V | Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=6.0mA; VCC=4.5V | 6 | ||
| input leakage current | II | -1 | 1 | uA | Tamb=-40℃ to +85℃; VI=VCC or GND; VCC=6.0V | 6 | |
| OFF-state output current | IOZ | -5 | 5 | uA | Tamb=-40℃ to +85℃; VI=VIH or VIL; VCC=6.0V; VO=VCC or GND | 6 | |
| supply current | ICC | 80 | uA | Tamb=-40℃ to +85℃; VI=VCC or GND; IO=0A; VCC=6.0V | 6 | ||
| nAn to nYn propagation delay | tpd | 145 | ns | Tamb=-40℃ to +85℃; VCC=2.0V; see Figure 5 | 8 | ||
| nAn to nYn propagation delay | tpd | 28 | ns | Tamb=-40℃ to +85℃; VCC=4.5V; see Figure 5 | 8 | ||
| nAn to nYn propagation delay | tpd | 24 | ns | Tamb=-40℃ to +85℃; VCC=6.0V; see Figure 5 | 8 | ||
| nOE to nYn enable time | ten | 190 | ns | Tamb=-40℃ to +85℃; VCC=2.0V; see Figure 6 | 8 | ||
| nOE to nYn enable time | ten | 38 | ns | Tamb=-40℃ to +85℃; VCC=4.5V; see Figure 6 | 8 | ||
| nOE to nYn enable time | ten | 33 | ns | Tamb=-40℃ to +85℃; VCC=6.0V; see Figure 6 | 8 | ||
| nOE to nYn disable time | tdis | 190 | ns | Tamb=-40℃ to +85℃; VCC=2.0V; see Figure 6 | 8 | ||
| nOE to nYn disable time | tdis | 38 | ns | Tamb=-40℃ to +85℃; VCC=4.5V; see Figure 6 | 8 | ||
| nOE to nYn disable time | tdis | 33 | ns | Tamb=-40℃ to +85℃; VCC=6.0V; see Figure 6 | 8 | ||
| transition time | tt | 75 | ns | Tamb=-40℃ to +85℃; VCC=2.0V; see Figure 5 | 8 | ||
| transition time | tt | 15 | ns | Tamb=-40℃ to +85℃; VCC=4.5V; see Figure 5 | 8 | ||
| transition time | tt | 13 | ns | Tamb=-40℃ to +85℃; VCC=6.0V; see Figure 5 | 8 | ||
| HIGH-level output voltage | VOH | 1.9 | 2 | V | Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V | 5 | |
| HIGH-level output voltage | VOH | 4.4 | 4.5 | V | Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V | 5 | |
| HIGH-level output voltage | VOH | 5.9 | 6 | V | Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V | 5 | |
| HIGH-level output voltage | VOH | 3.98 | 4.32 | V | Tamb=25℃; VI=VIH or VIL; IO=-6.0mA; VCC=4.5V | 5 | |
| HIGH-level output voltage | VOH | 5.48 | 5.81 | V | Tamb=25℃; VI=VIH or VIL; IO=-7.8mA; VCC=6.0V | 5 | |
| LOW-level output voltage | VOL | 0 | 0.1 | V | Tamb=25℃; VI=VIH or VIL; IO=20uA; VCC=2.0V | 5 | |
| LOW-level output voltage | VOL | 0.15 | 0.26 | V | Tamb=25℃; VI=VIH or VIL; IO=6.0mA; VCC=4.5V | 5 | |
| LOW-level output voltage | VOL | 0.16 | 0.26 | V | Tamb=25℃; VI=VIH or VIL; IO=7.8mA; VCC=6.0V | 5 | |
| input leakage current | II | -0.1 | 0.1 | uA | Tamb=25℃; VI=VCC or GND; VCC=6.0V | 5 | |
| OFF-state output current | IOZ | -0.5 | 0.5 | uA | Tamb=25℃; VI=VIH or VIL; VCC=6.0V; VO=VCC or GND | 5 | |
| supply current | ICC | 8 | uA | Tamb=25℃; VI=VCC or GND; IO=0A; VCC=6.0V | 5 | ||
| input capacitance | CI | 3.5 | pF | 5 |
CAD (KiCad official)
- Symbol:
74HC244PWRG - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
74hc244pwrg-etched.step/74hc244pwrg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74hc244pwrg.step/74hc244pwrg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HANSCHIP semiconductor datasheet (14 pp, sha256
89ae331fa36a036e, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).