ST7SCR1E4, ST7SCR1R4
8-bit low-power, full-speed USB MCU with 16-Kbyte Flash, 768-byte RAM, smartcard interface and tim...
ST7SCR1E4, ST7SCR1R4
8-bit low-power, full-speed USB MCU with 16-Kbyte Flash, 768-byte RAM, smartcard interface and timer
Datasheet − production data
Features
Memories
■ Up to 16 Kbytes of ROM or High Density Flash (HDFlash) program memory with read/write protection, HDFlash In-Circuit and In-Application Programming. 100 write/erase cycles guaranteed, data retention: 40 years at 55°C
■ Up to 768 bytes of RAM including up to 128 bytes stack and 256 bytes USB buffer
Clock, reset and supply management
■ Low voltage reset
■ 2 power saving modes: Halt and Wait modes
■ PLL for generating 48 MHz USB clock using a 4 MHz crystal
Interrupt management
■ Nested Interrupt controller
USB (Universal Serial Bus) interface
■ 256-byte buffer for full speed bulk, control and interrupt transfer types compliant with USB specification (version 2.0)
■ On-Chip 3.3V USB voltage
regulator and transceivers with software power-down
■ 7 USB endpoints: – One 8-byte Bidirectional Control Endpoint – One 64-byte In Endpoint, – One 64-byte Out Endpoint – Four 8-byte In Endpoints
35 or 4 I/O ports
■ Up to 4 LED outputs with software programmable constant current (3 or 7 mA).
■ 2 General purpose I/Os programmable as interrupts
■ Up to 8 line inputs programmable as interrupts
■ Up to 20 outputs
■ 1 line assigned by default as static input after reset
LQFP64 14x14
SO24
QFN24
ISO7816-3 UART interface
■ 4 MHz clock generation ■ Synchronous/Asynchronous protocols
(T=0, T=1) ■ Automatic retry on parity error ■ ...