AT89S5324JC ATMEL Corporation, AT89S5324JC Datasheet

AT89S5324JC

Manufacturer Part Number

AT89S5324JC

Description

PLCC44

Manufacturer

ATMEL Corporation

Datasheet

1.AT89S5324AI.pdf (35 pages)

Specifications of AT89S5324JC

Date_code

08+

Current page: 1 of 35
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Features

•

Description

The AT89S53 is a low-power, high-performance CMOS 8-bit microcomputer with 12K

bytes of downloadable Flash programmable and erasable read only 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 downloadable Flash allows the program memory to be reprogrammed in-system

through an SPI serial interface or by a conventional nonvolatile memory programmer.

By combining a versatile 8-bit CPU with downloadable Flash on a monolithic chip, the

Atmel AT89S53 is a powerful microcomputer which provides a highly-flexible and

cost-effective solution to many embedded control applications.

The AT89S53 provides the following standard features: 12K bytes of downloadable

Flash, 256 bytes of RAM, 32 I/O lines, programmable watchdog timer, two Data Point-

ers, 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 AT89S53 is

designed with static logic for operation down to zero frequency and supports two soft-

ware 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.

The downloadable Flash can change a single byte at a time and is accessible through

the SPI serial interface. Holding RESET active forces the SPI bus into a serial pro-

gramming interface and allows the program memory to be written to or read from

unless Lock Bit 2 has been activated.

Compatible with MCS-51

12K Bytes of In-System Reprogrammable Downloadable Flash Memory

4V to 6V Operating Range

Fully Static Operation: 0 Hz to 24 MHz

Three-level Program Memory Lock

256 x 8-bit Internal RAM

32 Programmable I/O Lines

Three 16-bit Timer/Counters

Nine Interrupt Sources

Programmable UART Serial Channel

SPI Serial Interface

Low-power Idle and Power-down Modes

Interrupt Recovery From Power-down

Programmable Watchdog Timer

Dual Data Pointer

Power-off Flag

– SPI Serial Interface for Program Downloading

– Endurance: 1,000 Write/Erase Cycles

™

Products

8-bit

Microcontroller

with 12K Bytes

Flash

AT89S53

Not Recommended

for New Designs.

Use AT89S8253.

0787E–MICRO–3/06

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