AT87F55WD-24AC
vs
AT89C55WD-24AU
feature comparison
All Stats
Differences Only
Rohs Code
Part Life Cycle Code
Obsolete
Active
Ihs Manufacturer
ATMEL CORP
MICROCHIP TECHNOLOGY INC
Part Package Code
QFP
Package Description
1 MM HEIGHT, PLASTIC, TQFP-44
10 X 10 MM, 1 MM HEIGHT, 0.80 MM PITCH, GREEN, PLASTIC, MS-026ACB, TQFP-44
Pin Count
44
Reach Compliance Code
unknown
compliant
HTS Code
8542.31.00.01
Has ADC
NO
NO
Address Bus Width
16
16
Bit Size
8
8
CPU Family
8051
80C51
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-PQFP-G44
JESD-609 Code
e0
e3
Length
10 mm
10 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
TQFP
Package Equivalence Code
TQFP44,.47SQ,32
TQFP44,.39SQ,31
Package Shape
SQUARE
SQUARE
Package Style
FLATPACK, THIN PROFILE
FLATPACK, THIN PROFILE
Qualification Status
Not Qualified
Not Qualified
RAM (bytes)
256
256
ROM (words)
20480
20480
ROM Programmability
OTPROM
FLASH
Seated Height-Max
1.2 mm
1.2 mm
Speed
24 MHz
24 MHz
Supply Current-Max
25 mA
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
COMMERCIAL
INDUSTRIAL
Terminal Finish
TIN LEAD
MATTE TIN
Terminal Form
GULL WING
GULL WING
Terminal Pitch
0.8 mm
0.8 mm
Terminal Position
QUAD
QUAD
Width
10 mm
10 mm
uPs/uCs/Peripheral ICs Type
MICROCONTROLLER
MICROCONTROLLER
Base Number Matches
1
2
Pbfree Code
Factory Lead Time
4 Weeks
Samacsys Manufacturer
Microchip
Boundary Scan
NO
Format
FIXED POINT
Integrated Cache
NO
Low Power Mode
YES
Moisture Sensitivity Level
3
Number of External Interrupts
2
Number of Serial I/Os
1
Number of Timers
3
On Chip Data RAM Width
8
Peak Reflow Temperature (Cel)
260
Time@Peak Reflow Temperature-Max (s)
40
Compare AT87F55WD-24AC with alternatives
Compare AT89C55WD-24AU with alternatives