Amazon Echo Dot (B7W64E)
Amazon Echo Dot 4 Gen (B7W64E)
FCC approval date: 24 September 2020
(Est.) release date: November 2020
(Est.) initial retail price (in USD): $60
UPC: 840080564401 (UPC DB, On eBay)
Country of manuf.: Vietnam
Amazon image
ASINs
B085M66LH1 (
, On Amazon, On CCC)
B085K45C3S (, On Amazon, On CCC)
multiple revisions of this device, use caution
Type: IoT hub, wireless speaker system
FCC ID: 2ALXK-2768
IC ID: 25980-2768
PCB ID: 30-005605
Power: 12 VDC, 1.25 A
Connector type: barrel
CPU1: MediaTek MT8512 (2.0 GHz, 2 cores)
FLA1: 512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (Micron MT29F4G01ABAFDWB-IT:F)
RAM1: 512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (Micron MT53E256M16D1DS-046 WT:B)
Expansion IFs: none specified
WI1 chip1: MediaTek MT7653BSN
WI1 802dot11 protocols: abgn+ac
WI1 MIMO config: 1x1:1
WI1 antenna connector: none
abgn+ac
Additional chips
Quad-Channel 768kHz Burr-Brown Audio ADC;TI;TLV320ADC5140;;1;
25mW Cap Free Stereo Headphone Amplifier;Diodes Inc;PAM8908;;1;
36-Channel I2C Constant Current RGB LED Driver;TI;LP5036;;1;
20V Digital Input Class-DG Amplifier;Maxim;MAX98396;;1;
PMIC;MediaTek;MT6398AN;;1;
Flags: Bluetooth 5.0, Audio out (3.5 mm), Alexa support
802dot11 OUI: 68:B6:91
| CPU1 brand | WI1 chip1 brand | WI1 chip2 brand | |
|---|---|---|---|
| Amazon Echo Dot (B7W64E) | MediaTek | MediaTek | |
| Amazon Echo Dot (C78MP8) | MediaTek | MediaTek | |
| Amazon Echo Dot (D9N29T) | MediaTek | MediaTek | |
| Amazon Echo Dot (RS03QR) | MediaTek | MediaTek | |
| Amazon Echo Dot (S04WQR) | Texas Instruments | Atheros | Atheros |
For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.
Smart Home Solution Speaker with Clock
"30-005605" and "REV 01" are silkscreened on main board.
Links
- Amazon Echo Dot With Clock (4th Gen) Review on PC Mag
- Amazon Echo Dot with Clock (2020) review on TechRadar
- Amazon Echo Dot & Echo Dot with Clock (4th Gen) review on Android Central
- Amazon Echo Dot 4th Gen Teardown on Adafruit blog
- Amazon Echo Dot 4th Gen Teardown on iFixit
Hardware specification
- CPU: MediaTek MT8512B @2.0GHz
- Dual-core ARM (Cortex-A53)
- Amazon AZ1 Neural Edge
- Storage: 512MB (SPI NAND) Flash
- Memory: 512MB (LPDDR4) RAM
- Wi-Fi: MediaTek MT7653BSN (SDIO)
- 802.11abgn/ac 2.4/5GHz + BT 5.0
- Power Source: 12V 1.25A via barrel
See also
- Amazon Echo (4th Gen) • Spherical design with rich sound, smart home hub, and Alexa
- Amazon Echo Dot (5th Gen, 2022) with Clock • Smart speaker with clock and Alexa
- Amazon Echo Plus (2nd Gen) • Smart home hub with spherical design and Alexa
- Amazon Echo Show 8 (2nd Gen, 2021) • HD smart display with Alexa and 13MP camera
- Amazon Echo Show 5 (2nd Gen, 2021) • Smart display with Alexa and 2MP camera
- Amazon Echo Glow • Multicolor smart lamp for kids, compatible Alexa device
- Echo Sub • Powerful subwoofer for Echo, requires compatible Echo device
- Echo Studio • Smart speaker with Dolby Atmos, spatial audio and Alexa
- Amazon Smart Plug • Smart Plug for home automation, works with Alexa
