AT89S51-24AU vs AT87F51-12JC feature comparison

AT89S51-24AU Atmel Corporation

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AT87F51-12JC 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 LPCC
Package Description 10 X 10 MM, 1 MM HEIGHT, 0.80 MM PITCH, GREEN, PLASTIC, MS-026ACB, TQFP-44 QCCJ, LDCC44,.7SQ
Pin Count 44 44
Reach Compliance Code unknown unknown
ECCN Code 3A991.A.2
HTS Code 8542.31.00.01 8542.31.00.01
Core Architecture 8051
Device Core 8051
Clock Speed 24
Ram 0.125
Flash Memory 4
Has ADC NO NO
Address Bus Width 16 16
Bit Size 8 8
CPU Family 8051 8051
Clock Frequency-Max 33 MHz 24 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 e3 e0
Length 10 mm 16.5862 mm
Moisture Sensitivity Level 3 2
Number of I/O Lines 32 32
Number of Terminals 44 44
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 TQFP QCCJ
Package Equivalence Code TQFP44,.47SQ,32 LDCC44,.7SQ
Package Shape SQUARE SQUARE
Package Style FLATPACK, THIN PROFILE CHIP CARRIER
Peak Reflow Temperature (Cel) 260 225
Qualification Status Not Qualified Not Qualified
RAM (bytes) 128 128
ROM (words) 4096 4096
ROM Programmability FLASH FLASH
Seated Height-Max 1.2 mm 4.57 mm
Speed 24 MHz 12 MHz
Supply Current-Max 25 mA 20 mA
Supply Voltage-Max 5.5 V 6 V
Supply Voltage-Min 4 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 (Sn) TIN LEAD
Terminal Form GULL WING J BEND
Terminal Pitch 0.8 mm 1.27 mm
Terminal Position QUAD QUAD
Time@Peak Reflow Temperature-Max (s) 40
Width 10 mm 16.5862 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER MICROCONTROLLER
Base Number Matches 1 1
Additional Feature 128 BYTES INTERNAL RAM

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