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AT83C5121 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 8-bit Microcontroller - ATMEL Corporation

भाग संख्या AT83C5121
समारोह 8-bit Microcontroller
मैन्युफैक्चरर्स ATMEL Corporation 
लोगो ATMEL Corporation लोगो 
पूर्व दर्शन
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<?=AT83C5121?> डेटा पत्रक पीडीएफ

AT83C5121 pdf
Description
Block Diagram
Figure 1. Block Diagram
T8xC5121 is a high performance CMOS ROM/CRAM derivative of the 80C51 CMOS
single chip 8-bit microcontrollers.
T8xC5121 retains the features of the Atmel 80C51 with extended ROM capacity (16
Kbytes), 512 bytes of internal RAM, a 4-level interrupt system, two 16-bit timer/counters
(T0/T1), a full duplex enhanced UART (EUART) with baud rate generator (BRG) and an
on-chip oscillator.
In addition, the T8xC5121 have, a Multi protocol Smart Card Interface, a dual data
pointer, 2 programmable LED current sources (2-4-10 mA) and a hardware Watchdog.
T89C5121 Flash RAM version and T85C5121 Code RAM version can be loaded by In-
System Programming (ISP) software residing in the on-chip ROM from a low-cost exter-
nal serial EEPROM or from R232 interface.
T8xC5121 have 2 software-selectable modes of reduced activity for further reduction in
power consumption.
(2) (2)
XTAL1
XTAL2
EA
PSEN
ALE
Xtal
Osc
:1-16
Clock
Prescaler
X2
(4)
CPU
RAM
EUART 256 x8
BRG
ROM
16K x8
(3)
CRAM
16K x8
XRAM
256
x8
C51
CORE
IB-bus
Voltage
Reg.
Timer 0
Timer 1
INT
Ctrl
(2) (2) (2) (2)
Watchdog
POR
PFD
6 I/Os 8 I/Os
Parallel I/O Ports
Direct
Drive
LED
Output
(2) (2)
DC/DC
Converter
Level
Shifters
SCIB
Alternate
Card
CVCC
(1(((111))))CCRCCCSCIOT84
(1) CCLK
(1)CPRES
(2)
CIO1
(2)
CRST1
(2)
CCLK1
Notes:
(1):
1. Alternate function of Port 1
2. Alternate function of Port 3
3. Only for the Code RAM version
4. Only for PLCC52
2 A/T8xC5121
4164G–SCR–07/06

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डाउनलोड[ AT83C5121 Datasheet.PDF ]


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