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C541U Datasheet, PDF (4/63 Pages) Siemens Semiconductor Group – 8 BIT CMOS MICROCONTROLLER | |||
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C541U
Features (continued) :
⢠Up to 64K byte external data memory
⢠256 byte on-chip RAM
⢠Four parallel I/O ports
â P-LCC-44 package : three 8-bit ports and one 6-bit port
â P-SDIP-52* package : four 8-bit ports
â LED current drive capability for 3 pins (10 mA)
⢠Two 16-bit timer/counters (C501 compatible)
⢠SSC synchronous serial interface (SPI compatible)
â Master and slave capable
â Programmable clock polarity / clock-edge to data phase relation
â LSB/MSB first selectable
â 1.5 MBaud transfer rate at 12 MHz operating frequency
⢠7 interrupt sources (2 external, 5 internal with 2 USB interrupts) selectable at 2 priority levels
⢠Enhanced fail safe mechanisms
â Programmable watchdog timer
â Oscillator watchdog
⢠Power saving modes
â idle mode
â software power down mode with wake-up capability through INT0 pin or USB
⢠On-chip emulation support logic (Enhanced Hooks Technology TM)
⢠P-LCC-44 and P-SDIP-52* packages
⢠Power supply voltage range : 4.25V to 5.5V
⢠Temperature Range :
TA = 0 to 70 °C
* P-SDIP-52 package is available on specific request from customer
Semiconductor Group
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