AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 131

• Manufacturer Part Number: AT89C5131A-L
• Manufacturer: Atmel Corporation

Specifications of AT89C5131A-L

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 48 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 1024
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 3.6
• Timers: 4
• Isp: UART/USB
• Watchdog: Yes

AT89C5131A-L
Figure 66. Example of a Suspend/Resume Management
USB Controller Init
SPINT
Detection of a SUSPEND State
Clear SPINT
Set SUSPCLK
Disable PLL
microcontroller in Power-down
WUPCPU
Detection of a RESUME State
Enable PLL
Clear SUSPCLK
Clear WUPCPU Bit
131
4338F–USB–08/07