Features
■ Core – ARM7TDMI 32-bit RISC CPU – 59 MIPS @ 66 MHz from SRAM – 45 MIPS @ 50 MHz from Flash
■ Memories – Up to 256 Kbytes Flash program memory (10 kcycles endurance, 20 years retention @ 85 ° C) – 16 Kbytes Flash data memory (100 kcycles endurance, 20 years retention@ 85 ° C) – Up to 64 Kbytes RAM – External Memory Interface (EMI) for up to 4 banks of SRAM, Flash, ROM – Multi-boot capability
■ Clock, reset and supply management – 3.0 to 3.6 V application supply and I/Os – Internal 1.8 V regulator for core supply – Clock input from 0 to 16.5 MHz – Embedded RTC osc. running from external 32 kHz crystal – Embedded PLL for CPU clock – Realtime Clock for clock-calendar function – 5 power saving modes: SLOW, WAIT, LPWAIT, STOP and STANDBY modes
■ Nested interrupt controller – Fast interrupt handling with multiple vectors – 32 vectors with 16 IRQ priority levels – 2 maskable FIQ sources
■ Up to 48 I/O ports – 30/32/48 multifunctional bidirectional I/Os Up to 14 ports with interrupt capability
■ 5 timers – 16-bit watchdog timer – 3 16-bit timers with 2 input captures, 2 output compares, PWM and pulse counter – 16-bit timer for timebase functions
■ 10 communication interfaces – 2 I2C interfaces (1 multiplexed with SPI) – 4 UART asynchronous serial interfaces – Smartcard ISO7816-3 interface on UART1 – 2 BSPI synchronous serial interfaces – CAN interface (2.0B Active) – USB Full Speed (12 Mbit/s) Device Function with Suspend and Resume – HDLC synchronous communications
■ 4-channel 12-bit A/D converter – Sampling frequency up to 1 kHz – Conversion range: 0 to 2.5 V
■ Development tools support – Atomic bit SET and RES operations