AT89C5131A-RDTIL Atmel, AT89C5131A-RDTIL Datasheet - Page 12

• Manufacturer Part Number: AT89C5131A-RDTIL
• Description: IC 8051 MCU FLASH 32K USB 64VQFP
• Manufacturer: Atmel
• Series: AT89C513xr

Specifications of AT89C5131A-RDTIL

• Core Processor: C52X2
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: LED, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: AT89C5131-RDTIL

PCB Recommandations
12
AT89C5131A-L
Figure 5. USB Pads
Figure 6. USB PLL
VRef
D+
D-
Components must be
close to the
microcontroller
close to the
microcontroller
Components must be
If possible, isolate D+ and D- signals from other signals
with ground wires
Isolate filter components
with a ground wire
AVss
Wires must be routed in Parallel and
must be as short as possible
PLLF
USB Connector
4338F–USB–08/07