AT89C55-24AC vs AT89C55WD-24JU feature comparison

AT89C55-24AC Atmel Corporation

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AT89C55WD-24JU Atmel Corporation

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Rohs Code No Yes
Part Life Cycle Code Obsolete Transferred
Ihs Manufacturer ATMEL CORP ATMEL CORP
Part Package Code QFP LPCC
Package Description TQFP, TQFP44,.47SQ,32 GREEN, PLASTIC, MS-018AC, LCC-44
Pin Count 44 44
Reach Compliance Code unknown unknown
HTS Code 8542.31.00.01 8542.31.00.01
Samacsys Manufacturer Microchip Microchip
Has ADC NO NO
Address Bus Width 16 16
Bit Size 8 8
CPU Family 8051 8051
Clock Frequency-Max 24 MHz 33 MHz
DAC Channels NO NO
DMA Channels NO NO
External Data Bus Width 8 8
JESD-30 Code S-PQFP-G44 S-PQCC-J44
JESD-609 Code e0 e3
Length 10 mm 16.586 mm
Number of I/O Lines 32 32
Number of Terminals 44 44
On Chip Program ROM Width 8 8
Operating Temperature-Max 70 °C 85 °C
Operating Temperature-Min -40 °C
PWM Channels NO NO
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code TQFP QCCJ
Package Equivalence Code TQFP44,.47SQ,32 LDCC44,.7SQ
Package Shape SQUARE SQUARE
Package Style FLATPACK, THIN PROFILE CHIP CARRIER
Qualification Status Not Qualified Not Qualified
RAM (bytes) 256 256
ROM (words) 20480 20480
ROM Programmability FLASH FLASH
Seated Height-Max 1.2 mm 4.572 mm
Speed 24 MHz 24 MHz
Supply Voltage-Max 6 V 5.5 V
Supply Voltage-Min 5 V 4 V
Supply Voltage-Nom 5 V 5 V
Surface Mount YES YES
Technology CMOS CMOS
Temperature Grade COMMERCIAL INDUSTRIAL
Terminal Finish TIN LEAD MATTE TIN
Terminal Form GULL WING J BEND
Terminal Pitch 0.8 mm 1.27 mm
Terminal Position QUAD QUAD
Width 10 mm 16.586 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER MICROCONTROLLER
Base Number Matches 1 1
Pbfree Code Yes
ECCN Code 3A991.A.2
Moisture Sensitivity Level 2
Peak Reflow Temperature (Cel) 245
Supply Current-Max 25 mA

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Compare AT89C55WD-24JU with alternatives