AT89C55WD-24JU vs AT89C55-33AC feature comparison

AT89C55WD-24JU Microchip Technology Inc

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AT89C55-33AC Atmel Corporation

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Pbfree Code Yes
Rohs Code Yes No
Part Life Cycle Code Active Obsolete
Ihs Manufacturer MICROCHIP TECHNOLOGY INC ATMEL CORP
Package Description GREEN, PLASTIC, MS-018AC, LCC-44 TQFP, TQFP44,.47SQ,32
Reach Compliance Code compliant compliant
Factory Lead Time 6 Weeks
Samacsys Manufacturer Microchip
Has ADC NO NO
Address Bus Width 16 16
Bit Size 8 8
Boundary Scan NO NO
CPU Family 80C51 8051
Clock Frequency-Max 33 MHz 33 MHz
DAC Channels NO NO
DMA Channels NO NO
External Data Bus Width 8 8
Format FIXED POINT
Integrated Cache NO
JESD-30 Code S-PQCC-J44 S-PQFP-G44
JESD-609 Code e3 e0
Length 16.586 mm 10 mm
Low Power Mode YES
Moisture Sensitivity Level 3
Number of External Interrupts 2
Number of I/O Lines 32 32
Number of Serial I/Os 1
Number of Terminals 44 44
Number of Timers 3
On Chip Data RAM Width 8
On Chip Program ROM Width 8 8
Operating Temperature-Max 85 °C 70 °C
Operating Temperature-Min -40 °C
PWM Channels NO NO
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code QCCJ TQFP
Package Equivalence Code LDCC44,.7SQ TQFP44,.47SQ,32
Package Shape SQUARE SQUARE
Package Style CHIP CARRIER FLATPACK, THIN PROFILE
Peak Reflow Temperature (Cel) 245
Qualification Status Not Qualified Not Qualified
RAM (bytes) 256 256
ROM (words) 20480 20480
ROM Programmability FLASH FLASH
Seated Height-Max 4.572 mm 1.2 mm
Speed 24 MHz 33 MHz
Supply Current-Max 25 mA
Supply Voltage-Max 5.5 V 5.5 V
Supply Voltage-Min 5 V 5 V
Supply Voltage-Nom 5 V 5 V
Surface Mount YES YES
Technology CMOS CMOS
Temperature Grade INDUSTRIAL COMMERCIAL
Terminal Finish MATTE TIN TIN LEAD
Terminal Form J BEND GULL WING
Terminal Pitch 1.27 mm 0.8 mm
Terminal Position QUAD QUAD
Time@Peak Reflow Temperature-Max (s) 40
Width 16.586 mm 10 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER MICROCONTROLLER
Base Number Matches 2 1
Part Package Code QFP
Pin Count 44
ECCN Code 3A991.A.2
HTS Code 8542.31.00.01

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