AT90S1200A datasheet, PDF - EEWORLD Datasheet

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AT90S1200A: Description8-BIT, FLASH, 12 MHz, RISC MICROCONTROLLER, PDIP20; Categorysemiconductor The embedded processor and controller; File Size1023KB，71 Pages; ManufacturerAtmel (Microchip)

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AT90S1200A Overview

8-BIT, FLASH, 12 MHz, RISC MICROCONTROLLER, PDIP20

AT90S1200A Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	20
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	6 V
Minimum supply/operating voltage	4 V
Rated supply voltage	5 V
External data bus width	0.0
Number of input and output buses	15
Line speed	12 MHz
Processing package description	0.300 INCH, Plastic, DIP-20
state	DISCONTINUED
Craftsmanship	CMOS
packaging shape	Rectangle
Package Size	IN-line
Terminal form	THROUGH-hole
Terminal spacing	2.54 mm
terminal coating	tin lead
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
Address bus width	0.0
Number of digits	8
Maximum FCLK clock frequency	12 MHz
Microprocessor type	Reduced Instruction Set Microcontroller
ROM programming	FLASH

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Features

•

Utilizes the AVR

RISC Architecture

•

AVR – High-performance and Low-power RISC Architecture

– 89 Powerful Instructions – Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Up to 12 MIPS Throughput at 12 MHz

Data and Non-volatile Program Memory

– 1K Byte of In-System Programmable Flash

Endurance: 1,000 Write/Erase Cycles

– 64 Bytes of In-System Programmable EEPROM

Endurance: 100,000 Write/Erase Cycles

– Programming Lock for Flash Program and EEPROM Data Security

Peripheral Features

– One 8-bit Timer/Counter with Separate Prescaler

– On-chip Analog Comparator

– Programmable Watchdog Timer with On-chip Oscillator

– SPI Serial Interface for In-System Programming

Special Microcontroller Features

– Low-power Idle and Power-down Modes

– External and Internal Interrupt Sources

– Selectable On-chip RC Oscillator for Zero External Components

Specifications

– Low-power, High-speed CMOS Process Technology

– Fully Static Operation

Power Consumption at 4 MHz, 3V, 25°C

– Active: 2.0 mA

– Idle Mode: 0.4 mA

– Power-down Mode: <1 µA

I/O and Packages

– 15 Programmable I/O Lines

– 20-pin PDIP, SOIC and SSOP

Operating Voltages

– 2.7 - 6.0V (AT90S1200-4)

– 4.0 - 6.0V (AT90S1200-12)

Speed Grades

– 0 - 4 MHz, (AT90S1200-4)

– 0 - 12 MHz, (AT90S1200-12)

•

8-bit

Microcontroller

with 1K Byte

of In-System

Programmable

Flash

AT90S1200

•

Pin Configuration

Rev. 0838H–AVR–03/02

AT90S1200

ing the Registers, Timer/Counter, Watchdog and Interrupt system to continue

functioning. The Power-down mode saves the register contents but freezes the Oscilla-

tor, disabling all other chip functions until the next External Interrupt or hardware Reset.

The device is manufactured using Atmel’s high-density nonvolatile memory technology.

The On-chip In-System Programmable Flash allows the program memory to be repro-

grammed in-system through an SPI serial interface or by a conventional nonvolatile

memory programmer. By combining an enhanced RISC 8-bit CPU with In-System Pro-

grammable Flash on a monolithic chip, the Atmel AT90S1200 is a powerful

microcontroller that provides a highly flexible and cost-effective solution to many embed-

ded control applications.

The AT90S1200 AVR is supported with a full suite of program and system development

tools including: macro assemblers, program debugger/simulators, in-circuit emulators,

and evaluation kits.

Pin Descriptions

VCC

GND

Port B (PB7..PB0)

Supply voltage pin.

Ground pin.

Port B is an 8-bit bi-directional I/O port. Port pins can provide internal pull-up resistors

(selected for each bit). PB0 and PB1 also serve as the positive input (AIN0) and the

negative input (AIN1), respectively, of the On-chip Analog Comparator. The Port B out-

put buffers can sink 20 mA and thus drive LED displays directly. When pins PB0 to PB7

are used as inputs and are externally pulled low, they will source current if the internal

pull-up resistors are activated. The Port B pins are tri-stated when a reset condition

becomes active, even if the clock is not active.

Port B also serves the functions of various special features of the AT90S1200 as listed

on page 30.

Port D (PD6..PD0)

Port D has seven bi-directional I/O pins with internal pull-up resistors, PD6..PD0. The

Port D output buffers can sink 20 mA. As inputs, Port D pins that are externally pulled

low will source current if the pull-up resistors are activated. The Port D pins are tri-stated

when a reset condition becomes active, even if the clock is not active.

Port D also serves the functions of various special features of the AT90S1200 as listed

on page 34.

RESET

Reset input. A low level on this pin for more than 50 ns will generate a reset, even if the

clock is not running. Shorter pulses are not guaranteed to generate a reset.

Input to the inverting oscillator amplifier and input to the internal clock operating circuit.

Output from the inverting oscillator amplifier.

XTAL1 and XTAL2 are input and output, respectively, of an inverting amplifier which can

be configured for use as an On-chip Oscillator, as shown in Figure 2

Either a quartz

crystal or a ceramic resonator may be used. To drive the device from an external clock

source, XTAL2 should be left unconnected while XTAL1 is driven as shown in Figure 3.

XTAL1

XTAL2

Crystal Oscillator

0838H–AVR–03/02

AT90S1200A Related Products

	AT90S1200A	90S1200
Description	8-BIT, FLASH, 12 MHz, RISC MICROCONTROLLER, PDIP20	8-BIT, FLASH, 12 MHz, RISC MICROCONTROLLER, PDIP20
Number of functions	1	1
Number of terminals	20	20
Maximum operating temperature	85 Cel	85 Cel
Minimum operating temperature	-40 Cel	-40 Cel
Maximum supply/operating voltage	6 V	6 V
Minimum supply/operating voltage	4 V	4 V
Rated supply voltage	5 V	5 V
External data bus width	0.0	0.0
Number of input and output buses	15	15
Line speed	12 MHz	12 MHz
Processing package description	0.300 INCH, Plastic, DIP-20	0.300 INCH, Plastic, DIP-20
state	DISCONTINUED	DISCONTINUED
Craftsmanship	CMOS	CMOS
packaging shape	Rectangle	Rectangle
Package Size	IN-line	IN-line
Terminal form	THROUGH-hole	THROUGH-hole
Terminal spacing	2.54 mm	2.54 mm
terminal coating	tin lead	tin lead
Terminal location	pair	pair
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy
Temperature level	INDUSTRIAL	INDUSTRIAL
Address bus width	0.0	0.0
Number of digits	8	8
Maximum FCLK clock frequency	12 MHz	12 MHz
Microprocessor type	Reduced Instruction Set Microcontroller	Reduced Instruction Set Microcontroller
ROM programming	FLASH	FLASH

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