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SN74ALVC244DGVR

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Texas Instruments Buffers, Drivers, Receivers, Transceivers, TVSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74ALVC244DGVR

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TVSOP-20

SN74ALVC244DGVR from Texas Instruments, in a TVSOP-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 Active-low output enable for the first 4-bit buffer; when OE is high, outputs 1Y1 to 1Y4 are in the high-impedance state, and OE should be tied to VCC through a pullup resistor to keep outputs high-Z during power up or down.
2 1A1 input Data input for channel 1 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V.
3 2Y4 tri_state Three-state output 4 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
4 1A2 input Data input for channel 2 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V.
5 2Y3 tri_state Three-state output 3 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
6 1A3 input Data input for channel 3 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V.
7 2Y2 tri_state Three-state output 2 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
8 1A4 input Data input for channel 4 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V.
9 2Y1 tri_state Three-state output 1 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
10 GND power_in Ground reference (0 V) for the device.
11 2A1 input Data input for channel 1 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V.
12 1Y4 tri_state Three-state output 4 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
13 2A2 input Data input for channel 2 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V.
14 1Y3 tri_state Three-state output 3 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
15 2A3 input Data input for channel 3 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V.
16 1Y2 tri_state Three-state output 2 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
17 2A4 input Data input for channel 4 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V.
18 1Y1 tri_state Three-state output 1 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V.
19 2OE input Active-low output enable for the second 4-bit buffer; when OE is high, outputs 2Y1 to 2Y4 are in the high-impedance state.
20 VCC power_in Supply voltage, recommended operating range 1.65 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TVSOP-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 1.65 3.6 V 3
High-level input voltage VIH 0.65 × VCC VCC = 1.65 V to 1.95 V 3
High-level input voltage VIH 1.7 V VCC = 2.3 V to 2.7 V 3
High-level input voltage VIH 2 V VCC = 2.7 V to 3.6 V 3
Low-level input voltage VIL 0.35 × VCC VCC = 1.65 V to 1.95 V 3
Low-level input voltage VIL 0.7 V VCC = 2.3 V to 2.7 V 3
Low-level input voltage VIL 0.8 V VCC = 2.7 V to 3.6 V 3
Input voltage VI 0 3.6 V 3
Output voltage VO 0 V Maximum printed as VCC 3
High-level output current IOH -4 mA VCC = 1.65 V 3
High-level output current IOH -12 mA VCC = 2.3 V 3
High-level output current IOH -24 mA VCC = 3 V 3
Low-level output current IOL 4 mA VCC = 1.65 V 3
Low-level output current IOL 12 mA VCC = 2.3 V 3
Low-level output current IOL 24 mA VCC = 3 V 3
Input transition rise or fall rate Δt/Δv 5 ns/V 3
Operating free-air temperature TA -40 85 °C 3
High-level output voltage VOH 1.2 V IOH = -4 mA, VCC = 1.65 V 3
High-level output voltage VOH 2 V IOH = -6 mA, VCC = 2.3 V 3
High-level output voltage VOH 1.7 V IOH = -12 mA, VCC = 2.3 V 3
High-level output voltage VOH 2.2 V IOH = -12 mA, VCC = 2.7 V 3
High-level output voltage VOH 2.4 V IOH = -12 mA, VCC = 3 V 3
Low-level output voltage VOL 0.2 V IOL = 100 µA, VCC = 1.65 V to 3.6 V 3
Low-level output voltage VOL 0.45 V IOL = 4 mA, VCC = 1.65 V 3
Low-level output voltage VOL 0.4 V IOL = 6 mA, VCC = 2.3 V 3
Low-level output voltage VOL 0.7 V IOL = 12 mA, VCC = 2.3 V 3
Low-level output voltage VOL 0.55 V IOL = 24 mA, VCC = 3 V 3
Input current II -5 5 µA VI = VCC or GND, VCC = 3.6 V 3
Off-state output current IOZ -10 10 µA VO = VCC or GND, VCC = 3.6 V 3
Supply current ICC 10 µA VI = VCC or GND, IO = 0, VCC = 3.6 V 3
Supply current change ΔICC 750 µA One input at VCC - 0.6 V, other inputs at VCC or GND, VCC = 3 V to 3.6 V 3
Propagation delay time A to Y tpd 1 4.4 ns VCC = 1.8 V ± 0.15 V, see Figure 1 4
Propagation delay time A to Y tpd 1 3.1 ns VCC = 2.5 V ± 0.2 V, see Figure 1 4
Propagation delay time A to Y tpd 3.1 ns VCC = 2.7 V, see Figure 1 4
Propagation delay time A to Y tpd 1.1 2.8 ns VCC = 3.3 V ± 0.3 V, see Figure 1 4
Output enable time OE to Y ten 1.8 6.9 ns VCC = 1.8 V ± 0.15 V, see Figure 1 4
Output enable time OE to Y ten 1.5 5.4 ns VCC = 2.5 V ± 0.2 V, see Figure 1 4
Output enable time OE to Y ten 5.3 ns VCC = 2.7 V, see Figure 1 4
Output enable time OE to Y ten 1.5 4.5 ns VCC = 3.3 V ± 0.3 V, see Figure 1 4
Output disable time OE to Y tdis 1.8 5.9 ns VCC = 1.8 V ± 0.15 V, see Figure 1 4
Output disable time OE to Y tdis 1 4.1 ns VCC = 2.5 V ± 0.2 V, see Figure 1 4
Output disable time OE to Y tdis 4.4 ns VCC = 2.7 V, see Figure 1 4
Output disable time OE to Y tdis 1.7 4.2 ns VCC = 3.3 V ± 0.3 V, see Figure 1 4
Supply voltage range VCC -0.5 4.6 V 2
Input voltage range VI -0.5 4.6 V 2
Output voltage range VO -0.5 V Maximum printed as VCC + 0.5 V 2
Input clamp current IIK -50 mA VI < 0 2
Output clamp current IOK -50 mA VO < 0 2
Continuous output current IO -50 50 mA 2
Continuous current through VCC or GND ICC -100 100 mA 2
Storage temperature range Tstg -65 150 °C 2
Input capacitance, control inputs Ci 4.5 pF VI = VCC or GND, VCC = 3.3 V, control inputs 3
Input capacitance, data inputs Ci 4.5 pF VI = VCC or GND, VCC = 3.3 V, data inputs 3
Output capacitance Co 7.5 pF VO = VCC or GND, VCC = 3.3 V 3
Package thermal impedance, DGV package θJA 92 °C/W DGV package, per JESD 51-7 2

CAD (KiCad official)

  • Symbol: SN74ALVC244DGVR
  • Footprint: Adom_Gen:Texas_Instruments_SN74
  • 3D model: TVSOP-20 (KiCad packages3D, STEP)
  • 3D model files: sn74alvc244dgvr-etched.step / sn74alvc244dgvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74alvc244dgvr.step / sn74alvc244dgvr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (23 pp, sha256 cb1b7c459f06040e, retrieved 2026-10-18, tier: manufacturer)
  • 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