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Contents

README

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STM6601CQ2BDM6F

STMicroelectronics · Supervisor And Reset ICs · TDFN-12(2x3)

STM6601CQ2BDM6F from STMicroelectronics, in a TDFN-12(2x3). 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 VCC power_in Power supply input that is monitored during startup and normal operation for sufficient voltage; decouple it to ground with a 0.1 µF capacitor placed as close to the device as possible.
2 SR input Smart Reset button input with a factory-trimmed voltage detector and ±8 kV HBM ESD protection; it is active low with an optional 100 kΩ pull-up and must not be permanently grounded.
3 VREF power_out Precise 1.5 V voltage reference output with 1% accuracy that is disabled in standby; a 1 µF capacitor is mandatory on this pin even when VREF is unused.
4 PSHOLD input Power-supply hold input with a factory-trimmed voltage detector that confirms proper power-up and, when driven low during normal operation, deasserts the enable output; an internal pull-down is active during startup.
5 CSRD passive Smart Reset delay input where a capacitor to ground sets the additional delay tSRD (charged with ISRD), a low-ESR ceramic is recommended, and the pin is left open if no capacitor is used.
6 PB input Power-on push-button input with a factory-trimmed voltage detector and ±8 kV HBM ESD protection that must be switched to GND and has an internal 100 kΩ pull-up.
7 VCCLO output Active-low open-drain high-threshold detection output that is low when VCC is below VTH+ at power-up or during undervoltage in normal operation, requires a pull-up (10 kΩ typical), and is floating in standby.
8 PBOUT output Active-low open-drain output that reflects the PB push-button state after tDEBOUNCE, ignores PB during undervoltage, and requires a pull-up (10 kΩ typical).
9 EN or EN output Push-pull enable output that asserts after a valid push-button turn-on with VCC above VTH+ and releases if the push-button is released before PSHOLD is high, PSHOLD is driven low, undervoltage persists too long, or a long push is detected; for this ordering code (option C) it is active high EN.
10 RST output Active-low open-drain reset output that is pulled low for tREC (240 ms min.) during startup and requires a pull-up (10 kΩ typical); on this variant a long push deasserts EN instead of asserting RST.
11 INT output Active-low open-drain interrupt output that is driven low for at least tINT_Min on a push-button press longer than tDEBOUNCE or on VCC undervoltage, held high during power-up, and requires a pull-up (10 kΩ typical).
12 GND power_in Ground reference for the device.
13 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TDFN-12(2x3)
Category Power Management (PMIC)
Pins 13

CAD (KiCad official)

  • Symbol: STM6601CQ2BDM6F
  • Footprint: Package_DFN_QFN:DFN-12-1EP_2x3mm_P0.45mm_EP0.64x2.4mm
  • 3D model: TDFN-12(2x3) (KiCad packages3D, STEP)
  • 3D model files: stm6601cq2bdm6f-etched.step / stm6601cq2bdm6f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm6601cq2bdm6f.step / stm6601cq2bdm6f.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (52 pp, sha256 24305a688f436ae9, retrieved 2026-10-08, tier: lcsc)
  • 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