MMA8491QR1

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MMA8491QR1

ACCELEROMETER 8G I2C 12QFN

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  • Mfr。パート #MMA8491QR1
  • パッケージ 12-TQFN Exposed Pad
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仕様

Supplier NXP USA Inc.
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Obsolete
Type Digital
Axis X, Y, Z
AccelerationRange ±8g
Sensitivity(LSB/g) 1024
Bandwidth 0.5Hz ~ 400Hz
OutputType I²C
Voltage-Supply 1.95V ~ 3.6V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 12-TQFN Exposed Pad

概要

Description

MMA8491QR1 is a 3‑axis MEMS accelerometer from Freescale (now NXP) with a digital output. It senses motion/tilt/shock and provides X, Y, and Z acceleration data over a digital interface.
Key points:
- Digital interface: I2C (and sometimes SPI-compatible variants)
- 3‑axis sensing with programmable data rate and full‑scale ranges
- Ultra‑low power, suitable for portable/embedded applications
- Features often include self‑test, wake/sleep or interrupt outputs, and configurable data formatting
- Small package for compact devices; used in consumer electronics, wearables, automotive modules, and sensing/monitoring apps
How to use (high level):
- Supply power (per datasheet), connect I2C lines (SCL/SDA)
- Configure control registers for data rate, full‑scale range, and interrupts
- Read accelerometer data from the output registers and convert to acceleration
For exact voltage ranges, data rates, register map, and timing, refer to the MMA8491QR1 datasheet.

Features

Here are the typical features of the MMA8491QR1 accelerometer (NXP/Freescale):
- 3-axis MEMS accelerometer
- Digital output with I2C and SPI interfaces
- Wide supply voltage (low-voltage operation)
- Low power consumption with multiple power modes
- Programmable full-scale range and data-rate
- On-chip processing/conditioning for digital output
- Small package, RoHS-compliant
- Suitable for mobile/embedded applications (orientation, motion sensing, etc.)
- Built-in self-test capability (health check)
- Industrial temperature range (where applicable)
Note: exact ranges, data rate options, and auxiliary features can vary by revision; consult the datasheet for precise specifications on MMA8491QR1.

Package

The MMA8491QR1 is supplied in a surface-mount LGA (land grid array) package. Check the manufacturer's datasheet for the exact pin count and mechanical dimensions.

Manufacturer

Manufacturer: NXP Semiconductors (the MMA8491QR1 was originally from Freescale Semiconductor; NXP now owns Freescale).
NXP is a Dutch multinational semiconductor company that designs and manufactures microelectronics and sensors for automotive, industrial, and consumer markets.

Application

- Digital compass/heading sensing in smartphones and wearables
- Tilt/orientation sensing for devices and displays
- Noncontact position sensing: rotary and linear magnetic encoders
- Motor control: rotor/position sensing for BLDC and stepper motors
- Proximity and end-stop sensing in automotive, industrial, appliances
- Robotics navigation and sensing applications

Equivalent

Do you mean direct drop-in replacements (pin‑/software‑compatible) or functional equivalents (same axes, g‑range, interface)? Tell me the key specs you need (axes, ±g range, interface I2C/SPI, digital/analog, package). With that I can list suitable equivalents (e.g., NXP, ST, Analog Devices, Kionix parts) and note true pin‑compatible swaps.

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出荷料参照（DHL/FedEx）:

DHL の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル（0.5kg）の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル（0.1kg）で、推定配送時間は5〜20営業日です。

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