STC12 Core Board STC12C5A60S2 51 Single-Chip Minimum System Development Learning Board/Dual Serial Port Part kit
1.Enhancement type 8051 CPU,1T,single clock/machine cycle;
instruction code is completely compatible with traditional
8051
2.Operating Voltage:3.5-5.5V
3.Ope rati ng Frequency equals to common 8051
0-420MHZ
4.Users application program space 8K/16K/20K/32K/40K/48K
/52K/60K/62K byte
5.On-chip integrates 1280 bytes RAM
6.Common I/O ports,after reset:quasi two-way ports/v^eak
pull-up (common 8051 traditional I/O port);can be set four
modes as:quasi two-way port/weak pull-up;strong push-pull/
strong pull-up;only input/high resistance;open-drain. Every
I/O ports driving capacity can be up to 20mA,but the whole
chip should be no more than 120mA
7.1 SP (programmable in system)/IAP (programmable in
appplication^does not need special emulator;and it can
download user applications directly by serial port (P3.0/P3.1)
after a few seconds
8 .EEPROM function
9 . Watch doq
10 .Internal integrates MAX810 special reset circuit (when
external crystal is less than 12 M, re set pin can directly
connect with IK resistor to ground)
11. Externa I power failure detection circuit:there is a low
voltage threshold comparator in P4.6 port.SV MCU is 3.3V,
and the tolerance is +/-5%
12. Clock source:external high precision crystal/clock,internal
R/C oscillator (temperature drift is +/-5%〜+/-10%). When
users download applications, they can choose whether to
use internal R/C oscillator or external crystal/clock.At normal
temperature,internal R/C oscillator frequency is
11MHz-17MHz
13.16 -bit timer for 4pcs:t\A/o timers/counters compatible with
traditional 8051,16-bit timer TO and Tl,no timer 2;but has
independent baud rate generator for serial port
communication;then adds a 2-channel PCA module can
achieve two 16-bit timers
14. Three clock output ports:can overflow by TO and output
clock in P3.4/T0;or overflow by T1 and output clock in P3.5/
Tl.Independent baud rate generator can output clock in
P 1.0 port
15. External interrupt I/O port 7-channel, traditional falling edge
interrupt or low level trigger interrupt;and support rising
edge interrupt PCA module,Power Down mode can be
awakened by external interrupt;INT0/P3.2,INTl/P3.3, TO/
P3.4,Tl/P35RxD/P3.O,CCPO/P13CCPl/PL4
16. PWN (2-channel)/PCA (programmable counter array,
2-channel):can be used as 2-channel D/A;or to achieve
another two timers;or to achieve another two external
interrupt (rising edge interrupt/falling edge interrupt can be
respectively or simultaneously supported)
17. A/D switch,10-bit precise A DC, tot ally 8-channel;switch
speed can be up to 250K/s
18. Com mon duplex asynchronous serial port (UART);since
STC12 series is high-speed 8051,it can achieve several serial
ports by the timer or PCA software
19. Double serial port:RxD2/P1.2 (can be set to P4.2 by register);
TxD2/P1.3 (can be set to P4.3 by register)
20.0perating Temperature Range:-40〜85 Celsius (industrial
level)/.〜75 Celsius (business level)
1.Enhancement type 8051 CPU,1T,single clock/machine cycle;
instruction code is completely compatible with traditional
8051
2.Operating Voltage:3.5-5.5V
3.Ope rati ng Frequency equals to common 8051
0-420MHZ
4.Users application program space 8K/16K/20K/32K/40K/48K
/52K/60K/62K byte
5.On-chip integrates 1280 bytes RAM
6.Common I/O ports,after reset:quasi two-way ports/v^eak
pull-up (common 8051 traditional I/O port);can be set four
modes as:quasi two-way port/weak pull-up;strong push-pull/
strong pull-up;only input/high resistance;open-drain. Every
I/O ports driving capacity can be up to 20mA,but the whole
chip should be no more than 120mA
7.1 SP (programmable in system)/IAP (programmable in
appplication^does not need special emulator;and it can
download user applications directly by serial port (P3.0/P3.1)
after a few seconds
8 .EEPROM function
9 . Watch doq
10 .Internal integrates MAX810 special reset circuit (when
external crystal is less than 12 M, re set pin can directly
connect with IK resistor to ground)
11. Externa I power failure detection circuit:there is a low
voltage threshold comparator in P4.6 port.SV MCU is 3.3V,
and the tolerance is +/-5%
12. Clock source:external high precision crystal/clock,internal
R/C oscillator (temperature drift is +/-5%〜+/-10%). When
users download applications, they can choose whether to
use internal R/C oscillator or external crystal/clock.At normal
temperature,internal R/C oscillator frequency is
11MHz-17MHz
13.16 -bit timer for 4pcs:t\A/o timers/counters compatible with
traditional 8051,16-bit timer TO and Tl,no timer 2;but has
independent baud rate generator for serial port
communication;then adds a 2-channel PCA module can
achieve two 16-bit timers
14. Three clock output ports:can overflow by TO and output
clock in P3.4/T0;or overflow by T1 and output clock in P3.5/
Tl.Independent baud rate generator can output clock in
P 1.0 port
15. External interrupt I/O port 7-channel, traditional falling edge
interrupt or low level trigger interrupt;and support rising
edge interrupt PCA module,Power Down mode can be
awakened by external interrupt;INT0/P3.2,INTl/P3.3, TO/
P3.4,Tl/P35RxD/P3.O,CCPO/P13CCPl/PL4
16. PWN (2-channel)/PCA (programmable counter array,
2-channel):can be used as 2-channel D/A;or to achieve
another two timers;or to achieve another two external
interrupt (rising edge interrupt/falling edge interrupt can be
respectively or simultaneously supported)
17. A/D switch,10-bit precise A DC, tot ally 8-channel;switch
speed can be up to 250K/s
18. Com mon duplex asynchronous serial port (UART);since
STC12 series is high-speed 8051,it can achieve several serial
ports by the timer or PCA software
19. Double serial port:RxD2/P1.2 (can be set to P4.2 by register);
TxD2/P1.3 (can be set to P4.3 by register)
20.0perating Temperature Range:-40〜85 Celsius (industrial
level)/.〜75 Celsius (business level)
