AT89C55WD-24AU Atmel, AT89C55WD-24AU Datasheet - Page 31

• Manufacturer Part Number: AT89C55WD-24AU
• Description: IC 8051 MCU FLASH 20K 44TQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C55WD-24AU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4 V to 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

38. Ordering Information
38.1
1921D–MICRO–6/08
44A
44J
40P6
Speed
(MHz)
24
33
Green Package Option (Pb/Halide-free)
4.0V to 5.5V
4.5V to 5.5V
Supply
44-lead, Thin Plastic Gull Wing Quad Flatpack (TQFP)
44-lead, Plastic J-leaded Chip Carrier (PLCC)
40-pin, 0.600" Wide, Plastic Dual Inline Package (PDIP)
Power
Ordering Code
AT89C55WD-24AU
AT89C55WD-24JU
AT89C55WD-24PU
AT89C55WD-33AU
AT89C55WD-33JU
AT89C55WD-33PU
Package Type
Package
44A
44J
40P6
44A
44J
40P6
Operation Range
(-40° C to 85° C)
(-40° C to 85° C)
AT89C55WD
Industrial
Industrial
31