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PDF STC11F04E Data sheet ( Hoja de datos )
| Número de pieza | STC11F04E | |
| Descripción | single-chip 8-bit micro-controller | |
| Fabricantes | STC Technology | |
| Logotipo |  |
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STC Technology Co.,Ltd.
STC11F02 Family
STC11F01E/02E/04E/06
Features...........................................................................................................................3
General Description .......................................................................................................4
Order Information: ..........................................................................................................4
Pin Definition............................................................................................................5
Pin Configuration......................................................................................................6
Special Function Register .............................................................................................8
Address Map .............................................................................................................8
Bits Description ........................................................................................................9
Memory ..........................................................................................................................10
Organization............................................................................................................10
RAM .......................................................................................................................10
Embedded Flash......................................................................................................10
IDLE Mode .....................................................................................................11
Slow Down Mode ...........................................................................................11
POWER-DOWN Mode ..................................................................................12
Device Resets..........................................................................................................14
Reset from RESET Pin ...................................................................................14
Watch-Dog-Timer ...........................................................................................14
Software RESET.............................................................................................14
Boot Entrance..................................................................................................14
I/O Port Configuration ............................................................................................16
Timer/Counter ......................................................................................................... 19
Interrupt...................................................................................................................24
Watch Dog Timer ....................................................................................................27
Universal Asynchronous Serial Port (UART).........................................................29
In System Programming and In Application Programming....................................34
In System Programming (ISP) ................................................................................34
In-Application Program (IAP) ................................................................................37
Other Auxiliary SFRs..............................................................................................37
Built-In Oscillator ...................................................................................................38
Instructions Set .............................................................................................................39
Absolute Maximum Rating (STC11Fxx)....................................................................42
DC Characteristics (STC11Fxx).................................................................................42
Absolute Maximum Rating (STC11LExx) .................................................................43
This document contains information on a new product under development by STC.STC reserves the right to change or discontinue this
product without notice.
2008/12 version A1
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
Pin Description
Pin Definition
Package Type
MNEMONIC
PDIP16 PDIP-18 PDIP-20
DESCRIPTION
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6/INT
P1.7/TXD
P3.0/RXD/INT
P3.1/TXD
P3.2/INT0
P3.3/INT1
P3.4/CLKOUT0
P3.5/CLKOUT1
P3.6/RST
P3.7/RD
10
11
12
-
-
13
14
15
2
3
-
6
7
-
-
-
11
12
13
-
14
15
16
17
2
3
-
6
7
8
1
10
12
13
14
15
16
17
18
19
2
3
6
7
8
9
1
11
Port1: General-purposed I/O with weak pull-up
resistance inside. When 1s are written into
Port1, the strong output driving PMOS only
turn-on two period and then the weak pull-up
resistance keep the port high.
Port3: General-purposed I/O with weak pull-up
resistance inside. When 1s are written into
Port1, the strong output driving PMOS only
turn-on two period and then the weak pull-up
resistance keep the port high. Port3 also serves
the special function of STC11Fxx.
RESET
11
1
RESET: A high on this pin for at least two
machine cycles will reset the device.
XTAL1
XTAL2
55
5
44
4
Crystal1: Input to the inverting oscillator
amplifier.
Crystal2: Output from the inverting amplifier.
VDD
16 18
20
Power
GND
8 9 10 Ground
STC11Fxx Technical Summary
5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
STC Technology Co.,Ltd.
STC11F02 Family
STC11F01E/02E/04E/06
Power Saving
IDLE Mode
An instruction setting SFR PCON.0 causes the device go into the idle mode, the internal clock
is gated off to the CPU but not to the interrupt, timer, WDT and serial port functions.
There are two ways to terminate the idle. Activation of any enabled interrupt will cause
PCON.0 to be cleared by hardware, terminating the idle mode. The interrupt will be serviced,
and following RETI instruction, the next instruction to be executed will be the one following the
instruction that puts the device into idle. Another way to wake-up from idle is to pull pin RST
high to generate internal hardware reset.
Slow Down Mode
A clock divider(CLKDIV) in the frond end of the device is designed to slow down the operation
speed of STC11Fxx, to save the operating power dynamically. Different from the same
register in STC11Fxx MCU, the content in SFR CLK_DIV is always effective without the need
to operate in IDLE mode.
SFR: CLK_DIV
Bit-7
Bit-6
--
Bit-5
-
Bit-4
-
Bit-3
-
Bit-2
CLKS2
Bit-1
CLKS1
Bit-0
CLKS0
{CKS2, CKS1, CKS0}: Clock selector under idle mode
{0, 0,0} : = (default)
In idle mode, clock is not divided (default state)
{0, 0, 1} : =
In idle mode, clock is divided by 2
{0, 1, 0} : =
In idle mode, clock is divided by 4
{0, 1, 1} : =
In idle mode, clock is divided by 8
{1, 0,0} : =
In idle mode, clock is divided by 16
{1, 0, 1} : =
In idle mode, clock is divided by 32
{1, 1, 0} : =
In idle mode, clock is divided by 64
{1, 1, 1} : =
In idle mode, clock is divided by 128
This document contains information on a new product under development by STC.STC reserves the right to change or discontinue this
product without notice.
2008/12 version A1
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 48 Páginas | |
| PDF Descargar | [ Datasheet STC11F04E.PDF ] | |
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