AT89C55WD Atmel Corporation, AT89C55WD Datasheet - Page 31

• Manufacturer Part Number: AT89C55WD
• Manufacturer: Atmel Corporation

Specifications of AT89C55WD

• Flash (kbytes): 20 Kbytes
• Max. Operating Frequency: 24 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Uart: 1
• Sram (kbytes): 0.25
• Operating Voltage (vcc): 4.0 to 6.0
• Timers: 3
• Watchdog: Yes

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
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