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The MQ series (general type) is a microcontroller with a built-in Flash memory and a 10-bit ADC (Analog to Digital Converter). The ADC is fit for voltage detection, temperature detection, or other sensor applications. In addition to these, there are wake-up, interrupt, timer, counter, Pulse-Width Modulation (PWM) and other functions. The built-in high-performance analog circuit can provide high-precision internal high-frequency oscillator frequency and low-voltage detection for customers to use. According to different customer needs, we can also provide customized I/O, such as external crystal oscillator input, infrared driver, pull-up/pull-down resistor, high current output. The product has an operating temperature range extending from -40°C to 85°C and is an excellent fit for applications, e.g., home appliances, consumer electronics, power management, instruments, toys, and so on.
| Product | MQ6801 | MQ6811 | MQ6821 | MQ6823 |
|---|---|---|---|---|
| Product No. | MQ6801SP016GABR MQ6801SP020GABR MQ6801SS020GABR MQ6801DP020GABR |
MQ6811MS010GABR | MQ6821SP020HAER MQ6821SS020HAER MQ6821DP020HAER |
MQ6823LQ032HALR |
| Max. Pin Count | 20 | 10 | 20 | 32 |
| Operating Voltage | 2.0~5.5V | 2.0~5.5V | 2.0~5.5V | 2.0~5.5V |
| Key-on Wakeup | 8 | 3 | 7 | 10 |
| FLASH | 8K Bytes | 8K Bytes | 16K Bytes | 16K Bytes Flash + 16K Bytes MTP |
| RAM | 256Bytes | 256Bytes | 512Bytes | 2048Bytes |
| ADC | 10-bit, 9ch | 10-bit, 3ch | 10-bit, 6ch | 10-bit, 8ch |
| Interrupt | Ext:3/ Int:15 | Ext:2/ Int:15 | Ext:2/ Int:18 | Ext:4/ Int:21 |
| Frequency | 8MHz | 8MHz | 16MHz | 16MHz |
| External Crystal | 1MHz~16MHz or 32768Hz | 1MHz~16MHz or 32768Hz | 1MHz~16MHz or 32768Hz | 1MHz~16MHz or 32768Hz |
| Timer | 8-bit Timer x 4 16-bit Timer x 1 |
8-bit Timer x 4 16-bit Timer x 1 |
8-bit Timer x 4 16-bit Timer x 1 |
8-bit Timer x 2 10-bit Timer x 1 16-bit Timer x 2 |
| WDT | WDT | WDT | WDT | WDT |
| TBT | TBT | TBT | TBT | TBT |
| RTC | RTC | RTC | RTC | RTC |
| WUC | WUC | WUC | WUC | WUC |
| LVD | 8 levels(+/-0.15V)*2 | 8 levels(+/-0.15V)*2 | 8 levels(+/-0.15V)*2 | 8 levels(+/-0.15V)*2 |
| UART | UART x 1 | UART x 1 | UART x 1 | UART x 2 |
| SIO | N/A | N/A | SIO x 1 | SIO x 1 |
| I2C | N/A | N/A | N/A | I2C x 1 |
| Package | DIP20 SOP20/16 SSOP20 |
MSOP10 | SOP20 SSOP20 DIP20 |
LQFP32 |
| Status | MP | MP | MP | MP |
*1: All ROM of MQ series products are a Flash memory type.
*2: MQ series products have 2 sets of LVD, and each set has 4 voltage grades. For detailed specifications of each grade, please refer to the product datasheet.
*3: The operating temperature range of all the above MQ series products extends from -40°C to 85°C.