|
|
PDF TS80C51RA2-LIAR Data sheet ( Hoja de datos )
| Número de pieza | TS80C51RA2-LIAR | |
| Descripción | High Performance 8-bit Microcontrollers | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TS80C51RA2-LIAR (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
High Performance 8-bit Microcontrollers
1. Description
Atmel Wireless & Microcontrollers TS80C51Rx2 is high
performance CMOS ROM, OTP, EPROM and ROMless
versions of the 80C51 CMOS single chip 8-bit
microcontroller.
The TS80C51Rx2 retains all features of the 80C51 with
extended ROM/EPROM capacity (16/32/64 Kbytes), 256
bytes of internal RAM, a 7-source , 4-level interrupt
system, an on-chip oscilator and three timer/counters.
In addition, the TS80C51Rx2 has a Programmable
Counter Array, an XRAM of 256 or 768 bytes, a
Hardware Watchdog Timer, a more versatile serial
channel that facilitates multiprocessor communication
(EUART) and a X2 speed improvement mechanism.
The fully static design of the TS80C51Rx2 allows to
reduce system power consumption by bringing the clock
frequency down to any value, even DC, without loss of
data.
The TS80C51Rx2 has 2 software-selectable modes of
reduced activity for further reduction in power
consumption. In the idle mode the CPU is frozen while
the timers, the serial port and the interrupt system are still
operating. In the power-down mode the RAM is saved
and all other functions are inoperative.
2. Features
• 80C52 Compatible
• 8051 pin and instruction compatible
• Four 8-bit I/O ports
• Three 16-bit timer/counters
• 256 bytes scratchpad RAM
• High-Speed Architecture
• 40 MHz @ 5V, 30MHz @ 3V
• X2 Speed Improvement capability (6 clocks/
machine cycle)
30 MHz @ 5V, 20 MHz @ 3V (Equivalent to
60 MHz @ 5V, 40 MHz @ 3V)
• Dual Data Pointer
• On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-
bytes)
• On-chip eXpanded RAM (XRAM) (256 or 768 bytes)
• Programmable Clock Out and Up/Down Timer/
Counter 2
• Programmable Counter Array with
• High Speed Output,
• Compare / Capture,
• Pulse Width Modulator,
• Watchdog Timer Capabilities
• Hardware Watchdog Timer (One-time enabled with
Reset-Out)
• 2 extra 8-bit I/O ports available on RD2 with high
pin count packages
• Asynchronous port reset
• Interrupt Structure with
• 7 Interrupt sources,
• 4 level priority interrupt system
• Full duplex Enhanced UART
• Framing error detection
• Automatic address recognition
• Low EMI (inhibit ALE)
• Power Control modes
• Idle mode
• Power-down mode
• Power-off Flag
• Once mode (On-chip Emulation)
• Power supply: 4.5-5V, 2.7-5.5V
• Temperature ranges: Commercial (0 to 70oC) and
Industrial (-40 to 85oC)
• Packages: PDIL40, PLCC44, VQFP44 1.4, CQPJ44
(window), CDIL40 (window), PLCC68, VQFP64
1.4, JLCC68 (window)
Rev. C - 06 March, 2001
1
1 page  
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
P5.5
P0.3/AD3
P0.2/AD2
P5.6
P0.1/AD1
P0.0/AD0
P5.7
VCC
NIC
P1.0/T2
P4.0
P1.1/T2EX
P1.2
P1.3
P4.1
P1.4
P4.2
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
10 60
11 59
12 58
13 57
14 56
15 55
16 54
17 PLCC 68
18
53
52
19 51
20 50
21 49
22 48
23 47
24 46
25 45
26 44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
P5.0
P2.4/A12
P2.3/A11
P4.7
P2.2/A10
P2.1/A9
P2.0/A8
P4.6
NIC
VSS
P4.5
XTAL1
XTAL2
P3.7/RD
P4.4
P3.6/WR
P4.3
P5.5
P0.3/AD3
P0.2/AD2
P5.6
P0.1/AD1
P0.0/AD0
P5.7
VCC
VSS
P1.0/T2
P4.0
P1.1/T2EX
P1.2
P1.3
P4.1
P1.4
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1 48
2 47
3 46
4 45
5 44
6 43
7 42
8 41
9
VQFP64 1.4
40
10 39
11 38
12 37
13 36
14 35
15 34
16 33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
P2.4/A12
P2.3/A11
P4.7
P2.2/A10
P2.1/A9
P2.0/A8
P4.6
NIC
VSS
P4.5
XTAL1
XTAL2
P3.7/RD
P4.4
P3.6/WR
P4.3
NIC: No InternalConnection
Rev. C - 06 March, 2001
5
5 Page 
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
6. TS80C51Rx2 Enhanced Features
In comparison to the original 80C52, the TS80C51Rx2 implements some new features, which are:
• The X2 option.
• The Dual Data Pointer.
• The extended RAM.
• The Programmable Counter Array (PCA).
• The Watchdog.
• The 4 level interrupt priority system.
• The power-off flag.
• The ONCE mode.
• The ALE disabling.
• Some enhanced features are also located in the UART and the timer 2.
6.1. X2 Feature
The TS80C51Rx2 core needs only 6 clock periods per machine cycle. This feature called ”X2” provides the
following advantages:
• Divide frequency crystals by 2 (cheaper crystals) while keeping same CPU power.
• Save power consumption while keeping same CPU power (oscillator power saving).
• Save power consumption by dividing dynamically operating frequency by 2 in operating and idle modes.
• Increase CPU power by 2 while keeping same crystal frequency.
In order to keep the original C51 compatibility, a divider by 2 is inserted between the XTAL1 signal and the main
clock input of the core (phase generator). This divider may be disabled by software.
6.1.1. Description
The clock for the whole circuit and peripheral is first divided by two before being used by the CPU core and
peripherals. This allows any cyclic ratio to be accepted on XTAL1 input. In X2 mode, as this divider is bypassed,
the signals on XTAL1 must have a cyclic ratio between 40 to 60%. Figure 1. shows the clock generation block
diagram. X2 bit is validated on XTAL1÷2 rising edge to avoid glitches when switching from X2 to STD mode.
Figure 2. shows the mode switching waveforms.
XTAL1
FXTAL
2
XTAL1:2
0
1
X2
FOSC
CKCON reg
state machine: 6 clock cycles.
CPU control
Figure 1. Clock Generation Diagram
Rev. C - 06 March, 2001
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TS80C51RA2-LIAR.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TS80C51RA2-LIAB | High Performance 8-bit Microcontrollers | ATMEL Corporation |
| TS80C51RA2-LIAD | High Performance 8-bit Microcontrollers | ATMEL Corporation |
| TS80C51RA2-LIAR | High Performance 8-bit Microcontrollers | ATMEL Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |