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Technical parameters

Key specs

Core8051
Core size8 bit
Speed25 MHzMax
Flash32 kB
RAM1 kB
I/O count32
Supply voltage4.5 ~ 5.5 V
Power
Voltage - Supply (Vcc/Vdd)4.5V ~ 5.5V
Environment and package
Core Size8-Bit
EEPROM Size-
Mounting TypeSurface Mount
Operating Temperature-40°C ~ 85°C (TA)
PackageBag
Package / Case44-TQFP
Program Memory Size32KB (32K x 8)
RAM Size1K x 8
Supplier Device Package44-TQFP (10x10)
Other
Base Product NumberDS89C440
ConnectivityEBI/EMI, SIO, UART/USART
Core Processor8051
Data Converters-
DigiKey ProgrammableNot Verified
MfrAnalog Devices Inc./Maxim Integrated
Number of I/O32
Oscillator TypeExternal
PeripheralsPower-Fail Reset, WDT
Product StatusObsolete
Program Memory TypeFLASH
Series89C
Speed25MHz

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