8-bit microcontroller. AT89EB5114 Datasheet

AT89EB5114 Datasheet PDF, Equivalent


Part Number

AT89EB5114

Description

Low-pin-count 8-bit microcontroller

Manufacture

ATMEL Corporation

Total Page 30 Pages
PDF Download
Download AT89EB5114 Datasheet PDF


AT89EB5114 Datasheet
Features
80C51 Compatible
– Two I/O Ports
– Two 16-bit Timer/Counters
– 256 bytes RAM
4 Kbytes ROM or 4 Kbytes Flash Program Memory
256 bytes EEPROM (Stack Die Packaging Technology on SO20 Package)
X2 Speed Improvement Capability (6 Clocks/Machine Cycle)
10-bit, 6 Channels A/D Converter
– One-channel with Progammable Gain and Rectifying Amplifier (Accuracy +/- 5%)
– Voltage Reference for A/D & External Analog
Hardware Watchdog Timer
Programmable I/O Mode: Standard C51, Input Only, Push-pull, Open Drain
Asynchronous Port Reset
Triple System Clock
– Crystal or Ceramic Oscillator (24 MHz)
– RC Oscillator (12 MHz), with Calibration Factor Using External R and C
(Accuracy +/- 3.5% with Ideal R and C)
– RC Oscillator, Low Power Consumption (12 MHz Low Accuracy)
– Programmable Prescaler
One PWM Unit Block With:
– 16-bits Programmable Counter
– 3 Independent Modules
One PWM Unit Block with:
– 16 bits Programmable Counter
– 1 Module
Interrupt Structure With:
– 7 Interrupt Sources,
– 4 interrupt Priority Levels
Power Control Modes:
– Idle Mode
– Power-down Mode
– Power Fail Detect, Power On Reset
– Quiet mode for A to D Conversion
Power Supply: 3 to 3.6V
Temperature Range: -40 to 85o C
Package: SO20, SO24 (upon request)
Description
The AT8xEB5114 is a high performance version of the 80C51 8-bit microcontroller in a
Low Pin Count package.
The AT8xEB5114 retains all the features of the standard 80C51 with 4 Kbytes pro-
gram memory, 256 bytes of internal RAM, a 7-source, 4-level interrupt system, an on-
chip oscillator and two timers/counters. AT8xEB5114 may include a serial two wire
interface EEPROM housed together with the microcontroller die in the same package.
The AT8xEB5114 is dedicated for analog interfacing applications. For this, it has a 10-
bit, 6 channels A/D converter and two PWM units; these PWM blocks provide PWM
generation with variable frequency and pulse width.
In addition, the AT8xEB5114 has a Hardware Watchdog Timer and an X2 speed
improvement mechanism. The X2 feature allows to keep the same CPU power at a
divided by two oscillator frequency. The prescaler allows to decrease CPU and periph-
erals clock frequency. The fully static design of the AT8xEB5114 allows to reduce
system power consumption by bringing the clock frequency down to any value, even
DC, without loss of data.
Low-pin-count
8-bit
microcontroller
with A/D
converter
AT83EB5114
AT89EB5114
Rev. 4311C–8051–02/08
1

AT89EB5114 Datasheet
Figure 1. Block Diagram
The AT8xEB5114 has 3 software-selectable modes of reduced activity for further reduc-
tion in power consumption. In idle mode the CPU is frozen while the peripherals are still
operating. In quiet mode, only the A/D converter is operating. In power-down mode the
RAM is saved and all other functions are inoperative. Three oscillator sources, crystal,
precision RC and low power RC, provide versatile power management.
The AT8xEB5114 is available in low pin count packages (ROM and flash versions).
XTAL1
XTAL2
Xtal
Osc
R RC
C
Osc
(12 MHz)
CPU
(3) (2)
(3) (2)
RAM
256
x8
ROM
4 K *8
or
Flash/EE 4K*8
IB-bus
PWMU0
PWMU1
Watch
Dog
RC
Osc
(12 MHz)
Timer 0
Timer 1
INT
Ctrl
Vref
A/D
Generator Converter
X1-20
Parallel I/O Ports
Port 3 Port 4
(2) (2) (3) (2) (3)
EEPROM
256 b
2 wires
interface
(SO20)
(2,3)(3)
(2): Alternate function of Port 3
(3): Alternate function of Port 4
2 AT89/83EB5114
4311C–8051–02/08


Features Datasheet pdf Features • 80C51 Compatible – Two I/ O Ports – Two 16-bit Timer/Counters 256 bytes RAM • 4 Kbytes ROM or 4 Kbytes Flash Program Memory • 256 byt es EEPROM (Stack Die Packaging Technolo gy on SO20 Package) • X2 Speed Improv ement Capability (6 Clocks/Machine Cycl e) • 10-bit, 6 Channels A/D Converter – One-channel with Progammable Gain and Rectifying Amplifier (Accuracy +/- 5%) – Voltage Reference for A/D & Ext ernal Analog • Hardware Watchdog Time r • Programmable I/O Mode: Standard C 51, Input Only, Push-pull, Open Drain Asynchronous Port Reset • Triple S ystem Clock – Crystal or Ceramic Osci llator (24 MHz) – RC Oscillator (12 M Hz), with Calibration Factor Using Exte rnal R and C (Accuracy +/- 3.5% with Id eal R and C) – RC Oscillator, Low Pow er Consumption (12 MHz Low Accuracy) Programmable Prescaler • One PWM Un it Block With: – 16-bits Programmable Counter – 3 Independent Modules • One PWM Unit Block with: – 16 bits Programmable Counter – 1 Module • Interrupt Structure With: – 7 Interrup.
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