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CAXC4T245QBQBRQ1

Texas Instruments · Translators, Level Shifters · DHVQFN-16-EP(2.5x3.5)

CAXC4T245QBQBRQ1 from Texas Instruments, in a DHVQFN-16-EP(2.5x3.5). 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 supply voltage, specified for 0.65V ≤ VCCA ≤ 3.6V; the A port tracks VCCA and the control pins are referenced to it.
2 1DIR input Direction control input for port 1, referenced to VCCA; high sends data from A to B and low sends data from B to A when OE is low.
3 2DIR input Direction control input for port 2, referenced to VCCA; high sends data from A to B and low sends data from B to A when OE is low.
4 1A1 bidirectional Input/output 1A1 referenced to VCCA, operating over a 0.65V to 3.6V I/O range.
5 1A2 bidirectional Input/output 1A2 referenced to VCCA, operating over a 0.65V to 3.6V I/O range.
6 2A1 bidirectional Input/output 2A1 referenced to VCCA, operating over a 0.65V to 3.6V I/O range.
7 2A2 bidirectional Input/output 2A2 referenced to VCCA, operating over a 0.65V to 3.6V I/O range.
8 GND power_in Ground reference; the datasheet directs that the GND pins be grounded first.
9 GND power_in Ground reference; the datasheet directs that the GND pins be grounded first.
10 2B2 bidirectional Input/output 2B2 referenced to VCCB, operating over a 0.65V to 3.6V I/O range.
11 2B1 bidirectional Input/output 2B1 referenced to VCCB, operating over a 0.65V to 3.6V I/O range.
12 1B2 bidirectional Input/output 1B2 referenced to VCCB, operating over a 0.65V to 3.6V I/O range.
13 1B1 bidirectional Input/output 1B1 referenced to VCCB, operating over a 0.65V to 3.6V I/O range.
14 2OE input Three-state output enable for port 2, referenced to VCCA; driving it high places the port 2 outputs in the high-impedance state.
15 1OE input Three-state output enable for port 1, referenced to VCCA; driving it high places the port 1 outputs in the high-impedance state.
16 VCCB power_in B-port supply voltage, specified for 0.65V ≤ VCCB ≤ 3.6V; the B port tracks VCCB.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package DHVQFN-16-EP(2.5x3.5)
Category Logic
Pins 17

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
High-level output voltage VOH 0.55 V VI = VIH; IOH = -50µA; VCCA = VCCB = 0.65V 7
High-level output voltage VOH 0.58 V VI = VIH; IOH = -200µA; VCCA = VCCB = 0.76V 7
High-level output voltage VOH 0.65 V VI = VIH; IOH = -500µA; VCCA = VCCB = 0.85V 7
High-level output voltage VOH 0.85 V VI = VIH; IOH = -3mA; VCCA = VCCB = 1.1V 7
High-level output voltage VOH 1.05 V VI = VIH; IOH = -6mA; VCCA = VCCB = 1.4V 7
High-level output voltage VOH 1.2 V VI = VIH; IOH = -8mA; VCCA = VCCB = 1.65V 7
High-level output voltage VOH 1.75 V VI = VIH; IOH = -9mA; VCCA = VCCB = 2.3V 7
High-level output voltage VOH 2.3 V VI = VIH; IOH = -12mA; VCCA = VCCB = 3V 7
Low-level output voltage VOL 0.1 V VI = VIL; IOL = 100µA; VCCA = VCCB = 0.7V-3.6V 7
Low-level output voltage VOL 0.18 V VI = VIL; IOL = 200µA; VCCA = VCCB = 0.76V 7
Low-level output voltage VOL 0.2 V VI = VIL; IOL = 500µA; VCCA = VCCB = 0.85V 7
Low-level output voltage VOL 0.25 V VI = VIL; IOL = 3mA; VCCA = VCCB = 1.1V 7
Low-level output voltage VOL 0.35 V VI = VIL; IOL = 6mA; VCCA = VCCB = 1.4V 7
Low-level output voltage VOL 0.45 V VI = VIL; IOL = 8mA; VCCA = VCCB = 1.65V 7
Low-level output voltage VOL 0.55 V VI = VIL; IOL = 9mA; VCCA = VCCB = 2.3V 7
Low-level output voltage VOL 0.7 V VI = VIL; IOL = 12mA; VCCA = VCCB = 3V 7
Input leakage current, control inputs (xDIR, xOE) II -1 1 µA VI = VCCA or GND; VCCA = VCCB = 0.65V to 3.6V; TA -40°C to 125°C 7
Input leakage current, data inputs (xAx, xBx) II -8 8 µA VI = VCCI or GND; VCCA = VCCB = 0.65V to 3.6V; TA -40°C to 125°C 7
Partial power-down current, A or B port Ioff -8 8 µA VI or VO = 0V; VCCA or VCCB = 0V to 3.6V; TA -40°C to 125°C 7
Three-state output current, A or B port IOZ -8 8 µA VI = VCCI or GND; VO = VCCO or GND; OE = VIH; VCCA = VCCB = 3.6V; TA -40°C to 125°C 7
VCCA supply current ICCA 26 µA VI = VCCI or GND; IO = 0; VCCA = VCCB = 0.65V to 3.6V 7
VCCB supply current ICCB 26 µA VI = VCCI or GND; IO = 0; VCCA = VCCB = 0.65V to 3.6V 7
Combined supply current ICCA + ICCB ICCA + ICCB 40 µA VI = VCCI or GND; IO = 0; VCCA = VCCB = 0.65V to 3.6V 7
Operating free-air temperature range TA -40 125 °C Operating temperature range 1
Junction-to-case (bottom) thermal resistance, BQB (WQFN) package RθJC(bottom) 10.2 °C/W BQB (WQFN) package, 16 pins 6

CAD (KiCad official)

  • Symbol: CAXC4T245QBQBRQ1
  • Footprint: Package_DFN_QFN:DHVQFN-16-1EP_2.5x3.5mm_P0.5mm_EP1x2mm
  • 3D model: DHVQFN-16-EP(2.5x3.5) (KiCad packages3D, STEP)
  • 3D model files: caxc4t245qbqbrq1-etched.step / caxc4t245qbqbrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); caxc4t245qbqbrq1.step / caxc4t245qbqbrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (47 pp, sha256 0e7f7be3b40cdc9a, retrieved 2026-11-06, tier: manufacturer)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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