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PDF SH79F081A Data sheet ( Hoja de datos )
| Número de pieza | SH79F081A | |
| Descripción | Enhanced 8051 Microcontroller | |
| Fabricantes | SINO WEALTH | |
| Logotipo |  |
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SH79F081A
Enhanced 8051 Microcontroller with 10bit ADC
1. Features
8bits micro-controller with Pipe-line structured 8051
compatible instruction set
Flash ROM: 8K Bytes
RAM: internal 256 Bytes
EEPROM-like: 2K Bytes
Operation Voltage:
fOSC = 400kHz - 16MHz, VDD = 3.6V - 5.5V
Oscillator (code option):
- Crystal oscillator: 400kHz - 16MHz
- Ceramic oscillator: 400kHz - 16MHz
- Internal RC: 12.3MHz
26 CMOS bi-directional I/O pins
Built-in pull-up resistor for input pin
Three 16-bit timer/counters T0, T1 and T2
One 12-bit PWM
Two 8-bit PWM
Powerful interrupt sources:
- Timer0, 1, 2
- INT0, 1
- INT4: 6 input
- ADC, EUART, SPI, PWM
EUART
SPI interface (Master/Slave Mode)
8channels 10-bits Analog Digital Converter (ADC),
with comparator function built-in
Buzzer
Low Voltage Reset (LVR) function (enabled by
code option)
- LVR voltage level 1: 4.1V
- LVR voltage level 2: 3.7V
CPU Machine cycle: 1 oscillator clock
Watch Dog Timer (WDT)
Warm-up Timer
Support Low power operation modes:
- Idle Mode
- Power-Down Mode
Flash Type
Package:
- SOP28 Pin
2. General Description
The SH79F081A is a high performance 8051 compatible micro-controller, regard to its build-in Pipe-line instruction fetch
structure, that helps the SH79F081A can perform more fast operation speed and higher calculation performance, if compare
SH79F081A with standard 8051 at same clock speed.
The SH79F081A retains most features of the standard 8051. These features include internal 256 bytes RAM, UART and Int0-1.
It also contains 8K bytes Flash memory block both for program and data. Also the ADC and PWM timer functions are
incorporated in SH79F081A.
For high reliability and low cost issues, the SH79F081A builds in Watchdog Timer, Low Voltage Reset function. And
SH79F081A also supports two power saving modes to reduce power consumption.
1 V2.0
1 page  
SH79F081A
5. Pin Description
Pin No.
Type
Description
I/O PORT
P0.2 - P0.7
P1.2 - P1.7
P2.0 - P2.7
P3.0 - P3.5
I/O 6 bit General purpose CMOS I/O
I/O 6 bit General purpose CMOS I/O
I/O 8 bit General purpose CMOS I/O
I/O 6 bit General purpose CMOS I/O
Timer
T0
T1
T2
T2EX
PWM0
PWM1
PWM2
PWM01
PWM11
PWM21
FLT
I/O Timer0 external input/Comparator output
I/O Timer1 external input/Comparator output
I/O Timer2 external input/ Baud-Rate generator
I Timer 2 Reload/Capture/Direction Control
O Output pin for 12-bit PWM timer
O Output pin for 8-bit PWM timer
O Output pin for 8-bit PWM timer
O Output pin for 12-bit PWM timer with fixed phase relationship of PWM0
O Output pin for 8-bit PWM timer with fixed phase relationship of PWM1
O Output pin for 8-bit PWM timer with fixed phase relationship of PWM2
I PWM Fault Detect input
EUART
RXD
TXD
I/O EUART data input
O EUART data output
SPI
ADC
MOSI
MISO
SCK
———
SS
I/O SPI master output slave input
I/O SPI master input slave output
I/O SPI serial clock
I SPI Slave Select
AN0 - AN7
I ADC input channel
Interrupt & Reset & Clock & Power
INT0 - INT1
INT40 - INT43
INT45 - INT46
I External interrupt 0-1 input source
I External interrupt 40-43, 45-46input source
————
RST
The device will be reset by A low voltage on this pin longer than 10us, an internal
I resistor about 100kΩ to VDD, So using only an external capacitor to GND can cause
a power-on reset.
XTAL1
XTAL2
VSS
VDD
(to be continued)
I Oscillator input
O Oscillator output
P Ground
P Power supply (3.6 - 5.5V)
5
5 Page 
Table 6.8 Timer SFRs
Mnem Add
TCON
TMOD
TL0
TH0
TL1
TH1
T2CON
T2MOD
88H
89H
8AH
8CH
8BH
8DH
C8H
C9H
RCAP2L CAH
RCAP2H CBH
TL2
TH2
TCON1
CCH
CDH
CEH
Name
Timer/Counter0/1 Control
Timer/Counter 0/1 Mode
Timer/Counter 0 Low Byte
Timer/Counter 0 High Byte
Timer/Counter 1 Low Byte
Timer/Counter 1 High Byte
Timer/Counter 2 Control
Timer/Counter 2 Control
Timer/Counter 2 Reload
/Caprure Low Byte
Timer/Counter 2 Reload
/Caprure High Byte
Timer/Counter 4 Control
Timer/Counter 4 Low Byte
Timer/Counter 4 High Byte
Table 6.9 EUART SFRs
Mnem Add
SCON
SBUF
SADEN
SADDR
PCON
98H
99H
9BH
9AH
87H
Name
Serial Control
Serial Data Buffer
Slave Address Mask
Slave Address
Power & serial Control
Table 6.10 SPI SFRs
Mnem Add
SPCON
SPSTA
SPDAT
A2H
F8H
A3H
Name
SPI control register
SPI status register
SPI data register
SH79F081A
POR/WDT/LVR
/PIN Reset Value
00000000
00000000
00000000
00000000
00000000
00000000
00000000
0-----00
Bit7
TF1
GATE1
TL0.7
TH0.7
TL1.7
TH1.7
TF2
TCLKP2
Bit6
TR1
———
C/T1
TL0.6
TH0.6
TL1.6
TH1.6
EXF2
-
Bit5
TF0
M11
TL0.5
TH0.5
TL1.5
TH1.5
RCLK
-
Bit4
TR0
M10
TL0.4
TH0.4
TL1.4
TH1.4
TCLK
-
Bit3
IE1
GATE0
TL0.3
TH0.3
TL1.3
TH1.3
EXEN2
-
Bit2
IT1
———
C/T0
TL0.2
TH0.2
TL1.2
TH1.2
TR2
-
Bit1
IE0
M01
TL0.1
TH0.1
TL1.1
TH1.1
———
C/ T2
T2OE
Bit0
IT0
M00
TL0.0
TH0.0
TL1.1
TH1.1
CP/RL2
DCEN
00000000 RCAP2L.7 RCAP2L.6 RCAP2L.5 RCAP2L.4 RCAP2L.3 RCAP2L.2 RCAP2L.1 RCAP2L.0
00000000
00000000
00000000
----0000
RCAP2H.7 RCAP2H.6 RCAP2H.5 RCAP2H.4 RCAP2H.3 RCAP2H.2 RCAP2H.1 RCAP2H.0
TL2.7
TH2.7
-
TL2.6
TH2.6
-
TL2.5
TH2.5
-
TL2.4
TH2.4
-
TL2.3
TH2.3
TCLKP1
TL2.2
TH2.2
TCLKP0
TL2.1
TH2.1
TC1
TL2.0
TH2.0
TC0
POR/WDT/LVR
/PIN Reset Value
00000000
00000000
00000000
00000000
00--0000
Bit7
SM0/FE
SBUF.7
SADEN.7
SADDR.7
SMOD
Bit6 Bit5 Bit4
SM1/RXOV SM2/TXCOL REN
SBUF.6
SBUF.5
SBUF.4
SADEN.6 SADEN.5 SADEN.4
SADDR.6 SADDR.5 SADDR.4
SSTAT
-
-
Bit3
TB8
SBUF.3
SADEN.3
SADDR.3
GF1
Bit2
RB8
SBUF.2
SADEN.2
SADDR.2
GF0
Bit1
TI
SBUF.1
SADEN.1
SADDR.1
PD
Bit0
RI
SBUF.0
SADEN.0
SADDR.0
IDL
POR/WDT/LVR
/PIN Reset Value
00000000
00000---
00000000
Bit7
DIR
SPEN
SPD.7
Bit6
MSTR
SPIF
SPD.6
Bit5
CPHA
MODF
SPD.5
Bit4
CPOL
WCOL
SPD.4
Bit3
SSDIS
RXOV
SPD.3
Bit2
SPR2
-
SPD.2
Bit1
SPR1
-
SPD.1
Bit0
SPR0
-
SPD.0
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SH79F081A.PDF ] | |
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