AT89C5131A-PUTIM Atmel, AT89C5131A-PUTIM Datasheet - Page 121

• Manufacturer Part Number: AT89C5131A-PUTIM
• Description: IC 8051 MCU FLASH 32K USB 32QFN
• Manufacturer: Atmel
• Series: AT89C513xr

Specifications of AT89C5131A-PUTIM

• Core Processor: C52X2
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: LED, POR, PWM, WDT
• Number Of I /o: 18
• 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): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• 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: -

Figure 21-2. SIE Block Diagram
21.1.2
4337K–USB–04/08
D+
D-
Function Interface Unit (FIU)
The Function Interface Unit provides the interface between the AT89C5131 and the SIE. It man-
ages transactions at the packet level with minimal intervention from the device firmware, which
reads and writes the endpoint FIFOs.
• Address checking.
• Clock generation (via DPLL).
End of Packet
Detection
Start of Packet
Detection
Clk48
(48 MHz)
Clock
Recovery
NRZI ‘NRZ
Bit Un-stuffing
Packet Bit Counter
USB Pattern Generator
Parallel to Serial Converter
Bit Stuffing
NRZI Converter
CRC16 Generator
SysClk
(12 MHz)
8
SYNC Detection
PID Decoder
Address Decoder
Serial to
P a r a l l e l
CRC5 and CRC16
Generation/Check
AT89C5130A/31A-M
DataIn [7:0]
DataOut
8
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