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8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
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8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes

China 8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes supplier
8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes supplier 8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes supplier 8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes supplier

Large Image :  8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes

Product Details:

Place of Origin: Taiwan
Brand Name: A tmel
Certification: Original Factory Pack
Model Number: AT89S52-24PU

Payment & Shipping Terms:

Minimum Order Quantity: 5pcs
Price: Negotiation
Packaging Details: please contact me for details
Delivery Time: 1 Day
Payment Terms: Western Union,PayPal, T/T
Supply Ability: 1600PCS
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Detailed Product Description
Shipment:: DHL, Fedex, TNT, EMS Etc Main Line:: Ic,module,transistor,diodes,capacitor,resistor Etc
Datacode: 1526+ Size RAM: 256 Bytes Of RAM
Factrory Pack: 200pcs/Box Package: PDIP-40

8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes

 

 

 

AT89S52-24PU 8-bit Microcontroller with 8K Bytes In-System Programmable Flash

 

Features

• Compatible with MCS®-51Products

• 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 1000 Write/Erase Cycles

• 4.0V to 5.5V Operating Range

• 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

• Full Duplex UART Serial Channel

• Low-power Idle and Power-down Modes

• Interrupt Recovery from Power-down Mode

• Watchdog Timer

• Dual Data Pointer

• Power-off Flag

• Fast Programming Time

• Flexible ISP Programming (Byte and Page Mode)

• Green (Pb/Halide-free) Packaging Option

 

1. Description

 

The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89S52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning. The Power-down mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next interrupt or hardware reset.

 

Port Pin Alternate Functions
P1.0 T2 (external count input to Timer/Counter 2), clock-out
P1.1 T2EX (Timer/Counter 2 capture/reload trigger and direction control)
P1.5 MOSI (used for In-System Programming)
P1.6 MISO (used for In-System Programming)
P1.7 SCK (used for In-System Programming)

 

8 Pin Programmable IC Chips AT89S52-24PU Microcontroller with 8K Bytes

Program Memory If the EA pin is connected to GND, all program fetches are directed to external memory. On the AT89S52, if EA is connected to VCC, program fetches to addresses 0000H through 1FFFH are directed to internal memory and fetches to addresses 2000H through FFFFH are to external memory.

 

 Data Memory The AT89S52 implements 256 bytes of on-chip RAM. The upper 128 bytes occupy a parallel address space to the Special Function Registers. This means that the upper 128 bytes have the same addresses as the SFR space but are physically separate from SFR space. When an instruction accesses an internal location above address 7FH, the address mode used in the instruction specifies whether the CPU accesses the upper 128 bytes of RAM or the SFR space. Instructions which use direct addressing access the SFR space. For example, the following direct addressing instruction accesses the SFR at location 0A0H (which is P2). MOV 0A0H, #data Instructions that use indirect addressing access the upper 128 bytes of RAM. For example, the following indirect addressing instruction, where R0 contains 0A0H, accesses the data byte at address 0A0H, rather than P2 (whose address is 0A0H). MOV @R0, #data Note that stack operations are examples of indirect addressing, so the upper 128 bytes of data RAM are available as stack space.

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