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AT89S2051-24PU

Description
8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP20
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size789KB,45 Pages
ManufacturerAtmel (Microchip)
Environmental Compliance
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AT89S2051-24PU Overview

8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP20

AT89S2051-24PU Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerAtmel (Microchip)
Parts packaging codeDIP
package instructionDIP, DIP20,.3
Contacts20
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time1 week
core architecture8051
Device core8051
clock speed24
Memory0.25
flash memory2
Samacsys DescriptiAT89S2051-24PU, 8 bit 8051 Microcontroller 24MHz 2 kB Flash, 256 B RAM, 20-Pin PDIP
Has ADCNO
Address bus width
bit size8
CPU series8051
maximum clock frequency24 MHz
DAC channelNO
DMA channelNO
External data bus width
JESD-30 codeR-PDIP-T20
JESD-609 codee3
length25.908 mm
Humidity sensitivity level1
Number of I/O lines15
Number of terminals20
On-chip program ROM width8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
PWM channelYES
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP20,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply3/5 V
Certification statusNot Qualified
RAM (bytes)256
rom(word)2048
ROM programmabilityFLASH
Maximum seat height5.334 mm
speed24 MHz
Maximum slew rate10.5 mA
Maximum supply voltage5.5 V
Minimum supply voltage2.7 V
Nominal supply voltage3 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.62 mm
uPs/uCs/peripheral integrated circuit typeMICROCONTROLLER
Features
Compatible with MCS
®
51 Products
2K/4K Bytes of In-System Programmable (ISP) Flash Program Memory
– Serial Interface for Program Downloading
– Endurance: 10,000 Write/Erase Cycles
2.7V to 5.5V Operating Range
Fully Static Operation: 0 Hz to 24 MHz
Two-level Program Memory Lock
256 x 8-bit Internal RAM
15 Programmable I/O Lines
Two 16-bit Timer/Counters
Six Interrupt Sources
Programmable Serial UART Channel
Direct LED Drive Outputs
On-chip Analog Comparator with Selectable Interrupt
8-bit PWM (Pulse-width Modulation)
Low Power Idle and Power-down Modes
Brownout Reset
Enhanced UART Serial Port with Framing Error Detection and Automatic
Address Recognition
Internal Power-on Reset
Interrupt Recovery from Power-down Mode
Programmable and Fuseable x2 Clock Option
Four-level Enhanced Interrupt Controller
Power-off Flag
Flexible Programming (Byte and Page Modes)
– Page Mode: 32 Bytes/Page
User Serviceable Signature Page (32 Bytes)
8-bit
Microcontroller
with 2K/4K
Bytes Flash
AT89S2051
AT89S4051
Preliminary
1. Description
The AT89S2051/S4051 is a low-voltage, high-performance CMOS 8-bit microcontrol-
ler with 2K/4K bytes of In-System Programmable (ISP) Flash program memory. The
device is manufactured using Atmel’s high-density nonvolatile memory technology
and is compatible with the industry-standard MCS-51 instruction set. By combining a
versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89S2051/S4051 is a
powerful microcontroller which provides a highly-flexible and cost-effective solution to
many embedded control applications. Moreover, the AT89S2051/S4051 is designed
to be function compatible with the AT89C2051/C4051 devices, respectively.
The AT89S2051/S4051 provides the following standard features: 2K/4K bytes of
Flash, 256 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a six-vector, four-
level interrupt architecture, a full duplex enhanced serial port, a precision analog
comparator, on-chip and clock circuitry. Hardware support for PWM with 8-bit resolu-
tion and 8-bit prescaler is available by reconfiguring the two on-chip timer/counters. In
addition, the AT89S2051/S4051 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 disabling all other chip functions until the next external interrupt or
hardware reset.
3390C–MICRO–7/05

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Is it lead-free? Lead free Contains lead Contains lead Contains lead Contains lead Contains lead
Is it Rohs certified? conform to incompatible incompatible incompatible incompatible incompatible
Maker Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip)
Parts packaging code DIP SOIC DIP SOIC SOIC DIP
package instruction DIP, DIP20,.3 SOP, 0.300 INCH, MS-001AD, PLASTIC, DIP-20 0.300 INCH, MS-013AC, PLASTIC, SOIC-20 SOP, DIP,
Contacts 20 20 20 20 20 20
Reach Compliance Code compli compli _compli compli compli _compli
core architecture 8051 8051 8051 8051 8051 8051
Device core 8051 8051 8051 8051 8051 8051
clock speed 24 24 24 24 24 24
Memory 0.25 0.25 0.25 0.25 0.25 0.25
flash memory 2 4 2 2 4 4
Has ADC NO NO NO NO NO NO
bit size 8 8 8 8 8 8
maximum clock frequency 24 MHz 24 MHz 24 MHz 24 MHz 24 MHz 24 MHz
DAC channel NO NO NO NO NO NO
DMA channel NO NO NO NO NO NO
JESD-30 code R-PDIP-T20 R-PDSO-G20 R-PDIP-T20 R-PDSO-G20 R-PDSO-G20 R-PDIP-T20
JESD-609 code e3 e0 e0 e0 e0 e0
length 25.908 mm 12.8 mm 25.908 mm 12.8 mm 12.8 mm 25.908 mm
Humidity sensitivity level 1 2 1 2 2 1
Number of I/O lines 15 15 15 15 15 15
Number of terminals 20 20 20 20 20 20
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 70 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C - -40 °C
PWM channel YES YES YES YES YES YES
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code DIP SOP DIP SOP SOP DIP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form IN-LINE SMALL OUTLINE IN-LINE SMALL OUTLINE SMALL OUTLINE IN-LINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED 240 225 240 240 225
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
ROM programmability FLASH FLASH FLASH FLASH FLASH FLASH
Maximum seat height 5.334 mm 2.649 mm 5.334 mm 2.649 mm 2.649 mm 5.334 mm
speed 24 MHz 24 MHz 24 MHz 24 MHz 24 MHz 24 MHz
Maximum supply voltage 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V
Nominal supply voltage 3 V 3 V 3 V 3 V 3 V 3 V
surface mount NO YES NO YES YES NO
technology CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL COMMERCIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) TIN LEAD Tin/Lead (Sn/Pb) TIN LEAD TIN LEAD Tin/Lead (Sn/Pb)
Terminal form THROUGH-HOLE GULL WING THROUGH-HOLE GULL WING GULL WING THROUGH-HOLE
Terminal pitch 2.54 mm 1.27 mm 2.54 mm 1.27 mm 1.27 mm 2.54 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED 30 30 30 30 30
width 7.62 mm 7.5 mm 7.62 mm 7.5 mm 7.5 mm 7.62 mm
uPs/uCs/peripheral integrated circuit type MICROCONTROLLER MICROCONTROLLER MICROCONTROLLER MICROCONTROLLER MICROCONTROLLER MICROCONTROLLER
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