ESP32-WROOM-32E vs LM822 对比
详细并排对比 ESP32-WROOM-32E 出自 Espressif Systems 和 LM822 出自 LM Technologies。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
LM Technologies
LM822 - 802.11 b/g/n WiFi Module with IC Antenna, USB HCI | LM Technologies
LM822 ✓ 量产中规格对比
| 参数 | ESP32-WROOM-32E | LM822 |
|---|---|---|
| 品牌 | Espressif Systems | LM Technologies |
| 分类 | RF Modules | RF Modules |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $1.86 | $11.40 |
| Core SoC | ESP32-D0WD-V3 | — |
| CPU | Dual-core Xtensa LX6, up to 240 MHz | — |
| SRAM | 520 KB | — |
| ROM | 448 KB | — |
| Wi-Fi Standard | 802.11 b/g/n, 2.4 GHz to 2.5 GHz | — |
| Bluetooth | v4.2 BR/EDR + BLE, Class 1, 2 and 3 | — |
| 电源电压 | 3.0 V to 3.6 V (typical 3.3 V) | 5 V (USB bus powered) |
| 工作温度 | -40C to +85C | — |
| Antenna Type | Integrated PCB antenna | — |
| Package Dimensions | 18 x 25.5 x 3.1 mm | — |
| 引脚数量 | 38 castellated pads | — |
| 安装类型 | Surface Mount | — |
| Flash Memory | [DATA_NEEDED: flash size suffix (N4/N8/N16)] | — |
| Peripherals | SPI, I2C, I2S, UART, CAN, PWM, ADC, DAC, touch sensor | — |
| RoHS 状态 | Compliant | Compliant (per LM Technologies product page) |
| Module Type | — | WiFi 802.11 b/g/n module (WiFi 4) |
| Frequency Band | — | 2.4 GHz ISM band |
| Wireless Standards | — | IEEE 802.11b, 802.11g, 802.11n |
| Maximum Data Rate | — | 150 Mbps (PHY, single stream) |
| Host Interface | — | USB (HCI - Host Controller Interface) |
| Antenna | — | Onboard IC (chip) antenna |
| Modulation | — | BPSK, QPSK, 16-QAM, 64-QAM |
| Encryption / Security | — | WEP, TKIP, AES, WPA, WPA2 |
| 802.11e (QoS) Support | — | Yes - bursting and standards compliance |
| 802.11I (Security) Support | — | Yes |
| OS Driver Support | — | Linux, macOS X, Windows 10 IoT Core, Windows XP to 10, Windows Compact Embedded 6/7 |
| Module Variant Ordering Code (example) | — | LM822-1452 |
| Mounting / Integration | — | Plug-and-play USB dongle-style module |