Features: • Enhanced 8-bit C500 CPU Full software/toolset compatible to standard 80C51/80C52 microcontrollers• 12 MHz external operating frequency 500 ns instruction cycle• Built-in PLL for USB synchronization• On-chip OTP program memory 8K byte Alternatively up to 64K b...
C541U: Features: • Enhanced 8-bit C500 CPU Full software/toolset compatible to standard 80C51/80C52 microcontrollers• 12 MHz external operating frequency 500 ns instruction cycle• Built...
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• Enhanced 8-bit C500 CPU
Full software/toolset compatible to standard 80C51/80C52 microcontrollers
• 12 MHz external operating frequency
500 ns instruction cycle
• Built-in PLL for USB synchronization
• On-chip OTP program memory
8K byte
Alternatively up to 64K byte external program memory
Optional memory protection
• On-chip USB module
Compliant to USB specification Rev1.0
Full speed or low speed operation
Five endpoints : one bidirectional control endpoint four versatile programmable endpoints
Registers are located in special function register area
On-chip USB transceiver
• Up to 64K byte external data memory
• 256 byte on-chip RAM
• Four parallel I/O ports
P-LCC-44 package : three 8-bit ports and one 6-bit port
P-SDIP-52* package : four 8-bit ports
LED current drive capability for 3 pins (10 mA)
• Two 16-bit timer/counters (C501 compatible)
• SSC synchronous serial interface (SPI compatible)
Master and slave capable
Programmable clock polarity / clock-edge to data phase relation
LSB/MSB first selectable
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
Programmable watchdog timer
Oscillator watchdog
• Power saving modes
idle mode
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
Parameter |
Symbol |
Limit Values |
Unit |
Notes | |
min. |
max. | ||||
Storage temperature |
TST |
-65 |
150 |
° C |
- |
Voltage on VDD pins with respect to ground (VSS) |
VDD |
-0.5 |
6.5 |
V |
- |
Voltage on any pin with respect to ground (VSS) |
VIN |
0.5 |
VDD + 0.5 |
V |
- |
Input current on any pin during overload condition |
10 |
10 |
mA |
- | |
Absolute sum of all input currents during overload condition |
- |
| 100 mA | |
mA |
- | |
Power dissipation |
PDISS |
- |
1 |
W |
- |