【 Features 】 |
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8-bit Turbo 8052 compatible CPU with 24 MHz operating frequency |
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6 MHz, 12 MHz or 24 MHz crystal oscillator (selectable by S/W) |
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Internal 48 MHz RC oscillator: auto-calibration by the DP DM signals can be selected by the firmware |
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32 kHz RC Ring Clock for off line and low power mode |
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16K bytes Flash ROM including EEPROM emulation |
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All pages of Flash ROM could be used (by page) as data storage |
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Each page is 512-byte |
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512 bytes SRAM |
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USB features: |
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Complete compatible with Universal Serial Bus specification 2.0 Full / Low Speed |
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1 control endpoint, IN/OUT each with 64 Bytes (8/16/32/64-byte programmable) FIFO |
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3 Generic endpoints (IN/OUT INT/Bulk programmable) each with 64-Byte (8/16/32/64 bytes programmable) FIFO; Endpoint 3 can also be configured as OUT token for endpoint 1 or 2 |
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Supports USB Suspend, Resume and Remote Wakeup |
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19-channel 12-bit ADC with external reference voltage input |
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3-ch 8-bit PWM output |
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Idle and power down modes supported |
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Standard RS232 data transmission: up to 230400bps |
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1 SPI interface |
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Master mode selectable |
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Max speed: 6 MHz |
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Data length per transaction: 1-byte |
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1 I2C interface |
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Master/Slave mode selectable |
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Max speed: 400 kHz |
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Data length per transaction: 1-byte |
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45 (max.) GPIO pins for chip form and LQFP64 & 21 (max.) GPIO pins for QFN32 |
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USB-related circuit and V33 voltage regulator can be disabled for portable applications which are powered by battery (VBAT <= 3.6V) |
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16 high sink current IO for LED control: Port A and Port E |
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IO falling or rising edge detect interrupt, can work as wakeup trigger at the power down mode: Port A |
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Three 16-bit timer/counter |
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Watch-dog timer (10ms to 640ms programmable) |
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ISP function by 6-pin I2C (VDD5V, VSS, OSCI, RESETN, SCL, SDA pins) or USB interface |
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On-chip ICE |
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Operating voltage: |
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Whole system (except USB and regulator) working voltage: 2.4V to 3.6V (from VBAT pin) |
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USB and regulator working voltage: 4.0V to 5.25V (from VDD5V pin) |
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Please refer to Chapter 6 (Application Circuits) for versatile applications |
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LQFP64 (7mmx7mm), QFN32 (5mmx5mm) and Chip form |