STC15F2K60S2-28I-LQFP44

Key features

• High-speed: 1 clock/machine cycle, enhanced 8051 core, approximately 12× faster than standard 8051, also 20% faster than STC's early 1T series MCUs (e.g., STC12/11/10 series)
• Wide voltage range: 5.5~3.8V, 2.4~3.6V (STC15L101W series)
• Low-power design: slow-speed mode, idle mode, power-down mode (wake-up via external interrupt or internal power-down wake-up timer)
• No external reset required; 8 selectable reset threshold voltages during ISP programming; built-in high-reliability reset circuit
• No external crystal required; internal clock configurable from 5MHz~35MHz during ISP programming (equivalent to 8051: 60~420MHz); internal high-precision R/C clock (±0.3%), ±1% temperature drift (-40°C~+85°C), ±0.6% temperature drift at room temperature (-20°C~+65°C)
• Power-down wake-up sources: INT0/INT1 (rising/falling edge), INT2/INT3/INT4 (falling edge); T0/T2 pins; dedicated internal power-down wake-up timer
• 1K/2K/3K/4K/5K/7K bytes on-chip Flash program memory, endurance >100,000 erase/write cycles
• 128-byte on-chip RAM data memory
• On-chip EEPROM, endurance >100,000 erase/write cycles
• ISP/IAP, in-system programmable/in-application programmable, no programmer/emulator required
• 2× 16-bit auto-reload timers T0/T2 with clock output capability; pin MCLKO supports divided internal master clock output (÷1, ÷2, or ÷4)
• Programmable clock output (divides internal system clock or external pin clock input for output): T0 outputs clock on P3.5; T2 outputs clock on P3.0; internal master clock output on P3.4/MCLKO (on STC15 series MCUs with more than 8 pins, master clock outputs on P5.4/MCLKO)
• Hardware watchdog timer (WDT)
• UART functionality implementable via [P3.0/INT4, P3.1] combined with a timer
• Advanced instruction set architecture, compatible with standard 8051 instruction set, with hardware multiply/divide instructions
• 8 general-purpose I/O pins; after reset: quasi-bidirectional/weak pull-up (standard 8051 I/O mode); four configurable modes: quasi-bidirectional/weak pull-up, strong push-pull/strong pull-up, input-only/high-impedance, open-drain; each I/O pin can drive up to 20mA, with a total chip limit of 90mA
• When I/O pins are insufficient, 3 standard I/O lines can interface with a 74HC595 for I/O expansion; multiple chips can be daisy-chained to expand by dozens of I/O pins; ADC-based key scanning can also save I/O pins
• No external crystal required; integrated high-precision R/C clock (±0.3%, ±1% temperature drift (-40°C~+85°C)), ±0.6% temperature drift at room temperature (-20°C~+65°C)
• No external reset required; integrated high-reliability reset circuit; 8 selectable reset threshold voltages during ISP programming; external reset circuit still supported if needed
• Unbreakable encryption — Macroblock 8th-generation encryption technology
• Excellent noise immunity: high ESD protection, passes 20,000V ESD test; passes 4kV EFT test; wide voltage range tolerates power supply fluctuation; wide temperature range: -40°C~+85°C
• Significantly reduced EMI; internally configurable clock; 1 clock/machine cycle; supports low-frequency clock operation
• Ultra-low power consumption: power-down mode wake-up current <0.2μA; idle mode typical current <1mA; normal operating mode: 4mA–6mA; power-down mode wake-up via external interrupt, suitable for battery-powered systems such as water meters, gas meters, and portable devices
• In-system emulation and in-system programming; no dedicated programmer or emulator required; supports remote firmware upgrade