AT89C55-24AC vs AT89C55-12JA feature comparison

AT89C55-24AC Atmel Corporation

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AT89C55-12JA Atmel Corporation

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Rohs Code No No
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer ATMEL CORP ATMEL CORP
Part Package Code QFP LCC
Package Description TQFP, TQFP44,.47SQ,32 QCCJ, LDCC44,.7SQ
Pin Count 44 44
Reach Compliance Code unknown compliant
HTS Code 8542.31.00.01 8542.31.00.01
Samacsys Manufacturer Microchip
Has ADC NO NO
Address Bus Width 16 16
Bit Size 8 8
CPU Family 8051 8051
Clock Frequency-Max 24 MHz 12 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 e0
Length 10 mm 16.5862 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 125 °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 4.57 mm
Speed 24 MHz 12 MHz
Supply Voltage-Max 6 V 6 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 AUTOMOTIVE
Terminal Finish TIN LEAD TIN LEAD
Terminal Form GULL WING J BEND
Terminal Pitch 0.8 mm 1.27 mm
Terminal Position QUAD QUAD
Width 10 mm 16.5862 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER MICROCONTROLLER
Base Number Matches 1 1
Moisture Sensitivity Level 2
Peak Reflow Temperature (Cel) 225

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