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BQ2026DBZR

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Texas Instruments Non-Volatile Memory (ROM), SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BQ2026DBZR

Texas Instruments · Non-Volatile Memory (ROM) · SOT-23-3

BQ2026DBZR from Texas Instruments, in a SOT-23-3. 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 SDQ bidirectional Single-wire bidirectional data pin that is also the device's only power source; it is an open-drain N-channel output needing a host pullup (5 kΩ external pullup or source current) to VPU, with VPU specified from 2.65 V to 5.5 V and an absolute-maximum DC voltage on VPU of -0.3 V to 12.5 V, and its low-level output current is limited to 5 mA.
2 VSS power_in Ground reference for the device; all voltages in the datasheet are specified relative to VSS.
3 VSS power_in Second ground pin on the DBZ package, listed alongside pin 2 as VSS in the pin table.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-3
Category Memory
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
DC voltage applied to VPU -0.3 12.5 V See Figure 1 3
Low-level output current, IOL IOL 5 mA 3
ESD IEC 61000-4-2 air discharge 6 kV SDQ to VSS, VSS to SDQ 3
Operating free-air temperature range TA -20 70 °C 3
Storage temperature range Tstg -55 125 °C 3
Supply voltage VPU operating range VPU 2.65 5.5 V TA = -20°C to 70°C; stated as VPU(min) = 2.65 VDC to 5.5 VDC in electrical characteristics header 4
Supply current ISDQ 20 μA VPU = 5.5 V 4
Low-level output voltage VOL 0.4 V Logic 0, VPU = 5.5 V, IOL = 4 mA, SDQ pin 4
Low-level output current (sink) IOL 4 mA VOL = 0.4 V, SDQ pin 4
Low-level input voltage VIL 0.8 V Logic 0 4
High-level input voltage VIH 2.2 V Logic 1 4
Programming voltage VPP 11.5 12 V 4
Input leakage Ilkg 1.4 μA 4
Input capacitance CI 1.2 nF 4
Bit cycle time tc 60 120 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Write start cycle tWSTRB 1 15 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Write data setup tWDSU 15 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Write data hold tWDH 60 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU; footnote (2): tWDH must be less than tc 4
Recovery time trec 1 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Read start cycle tRSTRB 1 13 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Output data delay tODD 13 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Output data hold tODHO 17 60 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Reset time tRST 480 μs 4
Presence pulse delay tPPD 15 64 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
Presence pulse tPP 60 240 μs Footnote (1): 5-kΩ series resistor between SDQ pin and VPU 4
EPROM programming time tEPROG 480 μs 4
Program setup time tPSU 5 μs 4
Program recovery time tPREC 5 μs 4
Program rising-edge time tPRE 5 μs 4
Program falling-edge time tPFE 5 μs 4
Reset recovery time tRSTREC 480 μs 4

CAD (KiCad official)

  • Symbol: BQ2026DBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: bq2026dbzr-etched.step / bq2026dbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq2026dbzr.step / bq2026dbzr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 c65d62803451ce90, retrieved 2026-10-28, 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