Chips · Fingerprint module SoC
Companion controller for slim module builds

AS618

The AS618 is the AS-family chip that steps in where a module has to be thin and the power budget is thin too — a companion controller that runs the in-house fingerprint algorithm on the same firmware dialect as the flagship part. Built for slim semiconductor module designs, from low-profile fingerprint locks to school-ID peripherals.

Low-power scheme SPI / UART / USB Free SDK
Verified · unit-level test pass
AS618 fingerprint module companion SoC package

Key specifications

AS618 · datasheet extractRev 3.4
FunctionFingerprint enrollment, 1:1 and 1:N handling as a module companion controller
AlgorithmIn-house DSP-based matching engine, same SDK dialect as AS608 for one firmware tree
Design goalSlim-form builds — low total BOM height for board-in-door and flex-stack modules
Sensor interfaceBS-series capacitive fingerprint arrays (BS807 / BS817 / BS870A / BS900T class)
Host interfacesSPI, UART, USB — SDK examples for all three
Target applicationsSlim fingerprint modules, low-cost enrollment peripherals, compact module builds
MarkingAS618 (module companion, surface-mount)

Full specification

ParameterValueNote
Product familyAS-series fingerprint secure SoCModule-side member
Algorithm engineDSP-based, in-house400+ registered IP across group
Template capacityTypical module platform: 100–200+ templatesConfigurable via SDK
Match latencySub-second classSDK-tuned per platform
InterfacesSPI / UART / USBAll documented in SDK
Sensor supportBS-series capacitive arrays508 DPI class
Power profileLow-power oriented for managed enclosuresBattery-tolerant reference designs in SDK
Operating environmentIndustrial temperature-class designSee AM-series module for −40~85°C fixture data
PackagingSurface-mount, tape/reel on requestESD-safe handling documented

Board-level values vary with sensor and clock config — a schematic check by FAE takes under 48h.

Slim smart door lock using a compact fingerprint module
Application · Compact module builds

Thin geometry is the gate; power is the wall.

Once a lock vendor moves from a chunky module to a 6-mm-class fingerprint stack, the controller board is usually what breaks the profile. The AS618 exists so that thin is a design decision, not a compromise:

  • One-die integration — sensor readout, algorithm and host protocol on a companion controller, which cuts the module to two boards or one flex instead of three.
  • Same firmware dialect as AS608 — a module team that already shipped on the flagship part reuses its template format, command set and test scripts almost unchanged.
  • Factory-ready — aging and unit-level test flows mirror the module lines; 2-year warranty from the first unit.
TM70 fingerprint attendance and access terminal mounted on an office wall
Application · Campus programs

Enrollment that fits a desk, not a cabinet.

School and campus ID programs need to enroll hundreds of students in a week without IT overhead. An AS618-driven USB collector or padlock-style reader keeps the whole enrollment stack inside a single peripheral:

  • 1:1 badge pairing and 1:N lookup on the same chip — no cloud dependency for core identity.
  • USB and UART variants let one firmware serve a desktop enroler and an in-door unit.
  • SDK threshold tuning lets integrators match the campus policy on FAR/FRR without new silicon.

AS618 FAQs

Yes — 1 pc is the MOQ, and samples ship in 1–3 days with the free SDK, datasheet and demo board guidance.

Both run the in-house algorithm; AS618 is engineered toward slim-profile, power-conscious module builds, while AS608 carries the wider interface set for terminal-class designs.

BS-series capacitive arrays — BS807, BS817, BS870A, BS900T are the reference set; the FAE team matches your sensor model within 48h.

Let an engineer check your slim-module stack.

Send your enclosure sketch or BOM draft — get a footprint clearance, updated datasheet and sample offer within 48h.

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