Factory Lead Time  

9 Weeks

Mount  

Surface Mount

Mounting Type  

Surface Mount

Package / Case  

44-LCC (J-Lead)

Number of Pins  

44

Manufacturer Package Identifier  

44J-B

Number of I/Os  

32

Watchdog Timers  

Yes

ROM(word)  

4096

Published  

1997

Series  

89S

Packaging  

Tube

Operating Temperature  

-40°C~85°C TA

JESD-609 Code  

e3

Pbfree Code  

yes

Part Status  

Active

Moisture Sensitivity Level (MSL)  

3 (168 Hours)

Number of Terminations  

44

Terminal Finish  

Matte Tin (Sn) - annealed

Voltage - Supply  

5V

Terminal Position  

QUAD

Terminal Form  

J BEND

Peak Reflow Temperature (Cel)  

245

Frequency  

24MHz

Time@Peak Reflow Temperature-Max (s)  

40

Base Part Number  

AT89S51

Power Supplies  

5V

Interface  

UART, USART

Memory Size  

4kB

Oscillator Type  

Internal

RAM Size  

128 x 8

uPs/uCs/Peripheral ICs Type  

MICROCONTROLLER

Number of Bits  

8

Core Processor  

8051

Peripherals  

WDT

Program Memory Type  

FLASH

Core Size  

8-Bit

Program Memory Size  

4KB 4K x 8

Connectivity  

UART/USART

Bit Size  

8

Access Time  

24 μs

Has ADC  

NO

DMA Channels  

NO

Data Bus Width  

8b

PWM Channels  

NO

DAC Channels  

NO

Number of Timers/Counters  

2

Address Bus Width  

8b

Number of UART Channels  

1

Height  

4.064mm

Length  

16.66mm

Width  

16.662mm

RoHS Status  

ROHS3 Compliant

Radiation Hardening  

No

REACH SVHC  

No SVHC

Lead Free  

Lead Free