Description
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