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Hello. Welcome to Futurlec. The ELECTRONIC COMPONENTS Superstore. To find the component your looking for, either search by Part Number or visit the relative department.
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Atmel

AT89S52- 8 bit Microcontroller with 8k Bytes Flash
Photograph
Atmel AT89S52 IC
Features
Compatible with MCS-51 Products
8K Bytes of In-System Reprogrammable Flash Memory
Fully Static Operation: 0 Hz to 33 MHz
Three-level Program Memory Lock
256 x 8-bit Internal RAM
32 Programmable I/O Lines
Three 16-bit Timer/Counters
Eight Interrupt Sources
Programmable Serial Channel
Low-power Idle and Power-down Modes
4.0V to 5.5V Operating Range
Full Duplex UART Serial Channel
Interrupt Recovery from Power-down Mode
Watchdog Timer
Dual Data Pointer
Power-off Flag
Fast Programming Time
Flexible ISP Programming (Byte and Page Mode)

Pin Description
Pin Number Description
1 - 8 P1.0 - P1.7 - Port 1
9 RST - Reset
10 - 17 P3.0 - P3.7 - Port 3
18 XTAL2 - Crystal
19 XTAL1 - Crystal
20 GND - Ground
21 - 28 P2.0 - P2.7 - Port 2
29 PSEN - Program Store Enable
30 ALE - Address Latch Enable
31 EA - External Access Enable
32 - 39 P0.7 - P0.1 - Port 0
40 Vcc - Positive Power Supply
Pin Layout
AT89S52 Pin Layout

Dimensional Drawing
DIP 14 Dimension Drawing


Technical Data
Data Sheet
Atmel - Data Sheet for AT89S52

Application Notes
Atmel - 80 Series Application Notes



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