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T89C5115 Datasheet(PDF) 2 Page - ATMEL Corporation

No. de Pieza. T89C5115
Descripción  Low Pin Countl 8-bit Microcontroller with A/D Converter and 16 KBytes Flash Memory
Descarga  113 Pages
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Fabricante  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
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T89C5115 Datasheet(HTML) 2 Page - ATMEL Corporation

 
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AT89C5115
4128F–8051–05/06
Description
The T89C5115 is a high performance Flash version of the 80C51 single chip 8-bit micro-
controllers. It contains a 16-KB Flash memory block for program and data.
The 16-KB Flash memory can be programmed either in parallel mode or in serial mode
with the ISP capability or with software. The programming voltage is internally gener-
ated from the standard VCC pin.
The T89C5115 retains all features of the 80C52 with 256 bytes of internal RAM, a 7-
source 4-level interrupt controller and three timer/counters. In addition, the T89C5115
has a 10-bit A/D converter, a 2-KB Boot Flash memory, 2-KB EEPROM for data, a Pro-
grammable Counter Array, an XRAM of 256 bytes, a Hardware WatchDog Timer and a
more versatile serial channel that facilitates multiprocessor communication (EUART).
The fully static design of the T89C5115 reduces system power consumption by bringing
the clock frequency down to any value, even DC, without loss of data.
The T89C5115 has two software-selectable modes of reduced activity and an 8 bit clock
prescaler for further reduction in power consumption. In the idle mode the CPU is frozen
while the peripherals and the interrupt system are still operating. In the power-down
mode the RAM is saved and all other functions are inoperative.
The added features of the T89C5115 make it more powerful for applications that need
A/D conversion, pulse width modulation, high speed I/O and counting capabilities such
as industrial control, consumer goods, alarms, motor control, etc. While remaining fully
compatible with the 80C52 it offers a superset of this standard microcontroller.
In X2 mode a maximum external clock rate of 20 MHz reaches a 300 ns cycle time.
Block Diagram
Note:
1. 8 analog Inputs/8 Digital I/O.
2. 2-bit I/O Port.
Timer 0
INT
RAM
256x8
XTAL2
XTAL1
UART
CPU
Timer 1
Ctrl
C51
CORE
Port 1 Port 2 Port 3
Parallel I/O Ports
XRAM
256 x 8
IB-bus
PCA
Watch
Dog
Timer 2
Port 4
10-bit
ADC
Flash
16K x
8
Boot
loader
2K x 8
EE
PROM
2K x 8


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