AT89C55WD-24AU vs AT89C55-16PA feature comparison

AT89C55WD-24AU Atmel Corporation

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AT89C55-16PA Atmel Corporation

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Pbfree Code Yes
Rohs Code Yes No
Part Life Cycle Code Transferred Obsolete
Ihs Manufacturer ATMEL CORP ATMEL CORP
Part Package Code QFP DIP
Package Description 10 X 10 MM, 1 MM HEIGHT, 0.80 MM PITCH, GREEN, PLASTIC, MS-026ACB, TQFP-44 DIP, DIP40,.6
Pin Count 44 40
Reach Compliance Code unknown compliant
ECCN Code 3A991.A.2
HTS Code 8542.31.00.01 8542.31.00.01
Factory Lead Time 4 Weeks
Samacsys Manufacturer Microchip
Has ADC NO NO
Address Bus Width 16 16
Bit Size 8 8
CPU Family 8051 8051
Clock Frequency-Max 33 MHz 16 MHz
DAC Channels NO NO
DMA Channels NO NO
External Data Bus Width 8 8
JESD-30 Code S-PQFP-G44 R-PDIP-T40
JESD-609 Code e3 e0
Length 10 mm 52.2 mm
Moisture Sensitivity Level 3
Number of I/O Lines 32 32
Number of Terminals 44 40
On Chip Program ROM Width 8 8
Operating Temperature-Max 85 °C 125 °C
Operating Temperature-Min -40 °C -40 °C
PWM Channels NO NO
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code TQFP DIP
Package Equivalence Code TQFP44,.6SQ,32 DIP40,.6
Package Shape SQUARE RECTANGULAR
Package Style FLATPACK, THIN PROFILE IN-LINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified Not Qualified
RAM (bytes) 256 256
ROM (words) 20480 20480
ROM Programmability FLASH FLASH
Seated Height-Max 1.2 mm 5.59 mm
Speed 24 MHz 24 MHz
Supply Current-Max 25 mA
Supply Voltage-Max 5.5 V 6 V
Supply Voltage-Min 4 V 4 V
Supply Voltage-Nom 5 V 5 V
Surface Mount YES NO
Technology CMOS CMOS
Temperature Grade INDUSTRIAL AUTOMOTIVE
Terminal Finish MATTE TIN TIN LEAD
Terminal Form GULL WING THROUGH-HOLE
Terminal Pitch 0.8 mm 2.54 mm
Terminal Position QUAD DUAL
Width 10 mm 15.24 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER MICROCONTROLLER
Base Number Matches 1 1

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