8-bit microcontroller featuring an 8051 CPU core, operating at a maximum clock frequency of 24MHz. This FLASH-programmable device offers 4KB of ROM and 128 bytes of RAM, with 32 programmable I/O lines. It supports an 8-bit external data bus and a 16-bit address bus, with a supply voltage range of 4V to 6V. Packaged in a 44-terminal PQCC, it operates within an industrial temperature range of -40°C to 85°C.
Frequency20
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Technical Specifications
Atmel AT89C51-20JI technical specifications.
General
Max Operating Temperature
85
Number of Terminals
44
Min Operating Temperature
-40
Terminal Position
QUAD
JEDEC Package Code
S-PQCC-J44
Width
16.5862
Length
16.5862
Pin Count
44
Temperature Grade
INDUSTRIAL
Supply Voltage-Nom
5
Supply Voltage-Min
4
Supply Voltage-Max
6
Clock Frequency-Max
24
uPs/uCs/Peripheral ICs Type
MICROCONTROLLER
Number of I/O Lines
32
External Data Bus Width
8
Address Bus Width
16
Bit Size
8
Speed
20
ROM Programmability
FLASH
ROM (words)
4096
RAM (bytes)
128
PWM Channels
NO
Has ADC
NO
DMA Channels
NO
DAC Channels
NO
Compliance
RoHS
No
HTS Code
8542.31.00.01
REACH
unknown
Military Spec
False
Datasheet
Atmel AT89C51-20JI Datasheet
Download the complete datasheet for Atmel AT89C51-20JI to view detailed technical specifications.
This datasheet cannot be embedded due to technical restrictions.