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SN74AVCH4T245PW

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Texas Instruments Logic ICs, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74AVCH4T245PW

Texas Instruments · Logic ICs · TSSOP-16

SN74AVCH4T245PW from Texas Instruments, in a TSSOP-16. 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 VCCA power_in A-port power supply voltage, with 1.2V ≤ VCCA ≤ 3.6V.
2 1DIR input Direction-control input for the 1 ports, supplied by VCCA.
3 2DIR input Direction-control input for the 2 ports, supplied by VCCA.
4 1A1 bidirectional Input/output 1A1, referenced to VCCA.
5 1A2 bidirectional Input/output 1A2, referenced to VCCA.
6 2A1 bidirectional Input/output 2A1, referenced to VCCA.
7 2A2 bidirectional Input/output 2A2, referenced to VCCA.
8 GND power_in Ground.
9 GND power_in Ground.
10 2B2 bidirectional Input/output 2B2, referenced to VCCA.
11 2B1 bidirectional Input/output 2B1, referenced to VCCA.
12 1B2 bidirectional Input/output 1B2, referenced to VCCA.
13 1B1 bidirectional Input/output 1B1, referenced to VCCA.
14 2OE input 3-state output-mode enable for the 2 outputs; pulling OE high places the '2' outputs in 3-state mode, referenced to VCCA.
15 1OE input 3-state output-mode enable for the 1 outputs; pulling OE high places the '1' outputs in 3-state mode, referenced to VCCA.
16 VCCB power_in B-port power supply voltage, with 1.2V to 3.6V per the Section 3 description.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Logic ICs
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
VCCA Supply voltage A VCCA -0.5 4.6 V 6
VCCB Supply voltage B VCCB -0.5 4.6 V 6
Input voltage I/O Ports (A Port) VI -0.5 4.6 V Input voltage, A port I/O 6
Input voltage I/O Ports (B Port) VI -0.5 4.6 V Input voltage, B port I/O 6
Input voltage Control Inputs VI -0.5 4.6 V Control inputs 6
Voltage applied to output in high-impedance or power-off state A Port VO -0.5 4.6 V A port, high-impedance or power-off state 6
Voltage applied to output in high-impedance or power-off state B Port VO -0.5 4.6 V B port, high-impedance or power-off state 6
Voltage applied to any output in high or low state A Port VO -0.5 V A port, high or low state; max printed as VCCA + 0.5 6
Voltage applied to any output in high or low state B Port VO -0.5 V B port, high or low state; max printed as VCCB + 0.5 6
Input clamp current IIK -50 mA VI < 0 6
Output clamp current IOK -50 mA VO < 0 6
Continuous output current IO -50 50 mA 6
Continuous current through VCCA, VCCB, or GND -100 100 mA 6
Junction temperature Tj 150 °C 6
Storage temperature Tstg -65 150 °C 6
Supply voltage A VCCA 1.2 3.6 V 7
Supply voltage B VCCB 1.2 3.6 V 7
High-level input voltage Data inputs VIH 0.65 xVCCI VCCI 1.2V to 1.95V; printed as VCCI x 0.65 7
High-level input voltage Data inputs VIH 1.6 V VCCI 1.95V to 2.7V 7
High-level input voltage Data inputs VIH 2 V VCCI 2.7V to 3.6V 7
Low-level input voltage Data inputs VIL 0.35 xVCCI VCCI 1.2V to 1.95V; printed as VCCI x 0.35 7
Low-level input voltage Data inputs VIL 0.7 V VCCI 1.95V to 2.7V 7
Low-level input voltage Data inputs VIL 0.8 V VCCI 2.7V to 3.6V 7
High-level input voltage DIR referenced to VCCA VIH 0.65 xVCCA VCCA 1.2V to 1.95V; printed as VCCA x 0.65 7
High-level input voltage DIR referenced to VCCA VIH 1.6 V VCCA 1.95V to 2.7V 7
High-level input voltage DIR referenced to VCCA VIH 2 V VCCA 2.7V to 3.6V 7
Low-level input voltage DIR referenced to VCCA VIL 0.35 xVCCA VCCA 1.2V to 1.95V; printed as VCCA x 0.35 7
Low-level input voltage DIR referenced to VCCA VIL 0.7 V VCCA 1.95V to 2.7V 7
Low-level input voltage DIR referenced to VCCA VIL 0.8 V VCCA 2.7V to 3.6V 7
Input voltage VI 0 3.6 V 7
Output voltage active state VO 0 V Active state; max printed as VCCO 7
Output voltage 3-state VO 0 3.6 V 3-state 7
High-level output current IOH -3 mA 1.2V 7
High-level output current IOH -6 mA 1.4V to 1.6V 7
High-level output current IOH -8 mA 1.65V to 1.95V 7
High-level output current IOH -9 mA 2.3V to 2.7V 7
High-level output current IOH -12 mA 3V to 3.6V 7
Low-level output current IOL 3 mA 1.2V 7
Low-level output current IOL 6 mA 1.4V to 1.6V 7
Low-level output current IOL 8 mA 1.65V to 1.95V 7
Low-level output current IOL 9 mA 2.3V to 2.7V 7
Low-level output current IOL 12 mA 3V to 3.6V 7
Operating free-air temperature TA -40 85 °C 7
Input leakage current DIR II -1 0.025 1 µA DIR, VI = VCCA or GND, 1.2V to 3.6V 8
Supply current ICCA ICCA 8 µA VI = VCCI or GND, IO = 0, VCCA 1.2V to 3.6V, VCCB 1.2V to 3.6V 9
Supply current ICCB ICCB 8 µA VI = VCCI or GND, IO = 0, VCCA 1.2V to 3.6V, VCCB 1.2V to 3.6V 9
Supply current ICCA + ICCB ICCA + ICCB 16 µA VI = VCCI or GND, IO = 0, VCCA 1.2V to 3.6V, VCCB 1.2V to 3.6V 9
High-level output voltage VOH 0.95 V IOH = -3mA, VI = VIH, VCCA = VCCB = 1.2V 8
High-level output voltage VOH 1.05 V IOH = -6mA, VI = VIH, VCCA = VCCB = 1.4V 8
High-level output voltage VOH 1.2 V IOH = -8mA, VI = VIH, VCCA = VCCB = 1.65V 8
High-level output voltage VOH 1.75 V IOH = -9mA, VI = VIH, VCCA = VCCB = 2.3V 8
High-level output voltage VOH 2.3 V IOH = -12mA, VI = VIH, VCCA = VCCB = 3V 8
Low-level output voltage VOL 0.15 V IOL = 3mA, VI = VIL, VCCA = VCCB = 1.2V 8
Low-level output voltage VOL 0.35 V IOL = 6mA, VI = VIL, VCCA = VCCB = 1.4V 8
Low-level output voltage VOL 0.55 V IOL = 9mA, VI = VIL, VCCA = VCCB = 2.3V 8
Low-level output voltage VOL 0.7 V IOL = 12mA, VI = VIL, VCCA = VCCB = 3V 8
Junction-to-ambient thermal resistance RθJA 102.8 °C/W PW (TSSOP) package 8
Junction-to-case (top) thermal resistance RθJC(top) 35.9 °C/W PW (TSSOP) package 8
Junction-to-board thermal resistance RθJB 57.5 °C/W PW (TSSOP) package 8

CAD (KiCad official)

  • Symbol: SN74AVCH4T245PW
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74avch4t245pw-etched.step / sn74avch4t245pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74avch4t245pw.step / sn74avch4t245pw.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 9f1b4fc7bf2b61d9, retrieved 2026-10-27, 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