AT89C5122D-RDRUM Atmel, AT89C5122D-RDRUM Datasheet - Page 58

• Manufacturer Part Number: AT89C5122D-RDRUM
• Description: IC 8051 MCU 32K CRAM USB 64-VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-RDRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: SmartCard, SPI, UART/USART, USB
• Peripherals: LED, POR, WDT
• Number Of I /o: 46
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: AT89C5122D-RDRUMTR

58
AT83R5122, AT8xC5122/23
Figure 28. LED Source Current
Notes:
Table 35. LED Source Current
Data
Port Latch
LEDx.1
LEDx.0
LEDx.1
0
0
0
0
1
1
1
1
1. When switching a low level, LEDCTRL device has a permanent current of about
2. The port must be configured as standard C51 port by means of PMOD0 and PMOD1
N mA/15 (N is 2, 4 or 8).
registers and the level of current must be programmed by means of LEDCON0 and
LEDCON1 registers before switching the led on.
LEDx.0
0
0
1
1
0
0
1
1
Port Latch Data
0
1
0
1
0
1
0
1
LEDCTRL
NMOS
1
0
0
0
0
0
0
0
NMOS
PIN
0
1
0
1
0
1
0
1
N
N
LED control disabled
LED mode 10 mA
LED mode 2 mA
LED mode 4 mA
Comments
4202F–SCR–07/2008
Pin