- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄1970 > T89C51AC2-SLSIM (Atmel)IC 8051 MCU FLASH 32K 44PLCC PDF資料下載
參數(shù)資料
| 型號(hào)： | T89C51AC2-SLSIM |
| 廠商： | Atmel |
| 文件頁(yè)數(shù)： | 85/121頁(yè) |
| 文件大小： | 0K |
| 描述： | IC 8051 MCU FLASH 32K 44PLCC |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 系列： | 89C |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 40MHz |
| 連通性： | UART/USART |
| 外圍設(shè)備： | POR，PWM，WDT |
| 輸入/輸出數(shù)： | 34 |
| 程序存儲(chǔ)器容量： | 32KB（32K x 8） |
| 程序存儲(chǔ)器類(lèi)型： | 閃存 |
| EEPROM 大?。?/td> | 2K x 8 |
| RAM 容量： | 1.25K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 8x10b |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 包裝： | 管件 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)當(dāng)前第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)
66
A/T89C51AC2
4127H–8051–02/08
Timer 2
The A/T89C51AC2 timer 2 is compatible with timer 2 in the 80C52.
It is a 16-bit timer/counter: the count is maintained by two eight-bit timer registers, TH2
and TL2 that are cascade- connected. It is controlled by T2CON register (See Table )
and T2MOD register (See Table 47). Timer 2 operation is similar to Timer 0 and Timer
1. C/T2 selects FT2 clock/6 (timer operation) or external pin T2 (counter operation) as
timer clock. Setting TR2 allows TL2 to be incremented by the selected input.
Timer 2 includes the following enhancements:
Auto-reload mode (up or down counter)
Programmable clock-output
Auto-Reload Mode
The auto-reload mode configures timer 2 as a 16-bit timer or event counter with auto-
matic reload. This feature is controlled by the DCEN bit in T2MOD register (See
Table 47). Setting the DCEN bit enables timer 2 to count up or down as shown in
Figure 36. In this mode the T2EX pin controls the counting direction.
When T2EX is high, timer 2 counts up. Timer overflow occurs at FFFFh which sets the
TF2 flag and generates an interrupt request. The overflow also causes the 16-bit value
in RCAP2H and RCAP2L registers to be loaded into the timer registers TH2 and TL2.
When T2EX is low, timer 2 counts down. Timer underflow occurs when the count in the
timer registers TH2 and TL2 equals the value stored in RCAP2H and RCAP2L registers.
The underflow sets TF2 flag and reloads FFFFh into the timer registers.
The EXF2 bit toggles when timer 2 overflow or underflow, depending on the direction of
the count. EXF2 does not generate an interrupt. This bit can be used to provide 17-bit
resolution.
Figure 36. Auto-Reload Mode Up/Down Counter
(DOWN COUNTING RELOAD VALUE)
TF2
T2
EXF2
TH2
(8-bit)
TL2
(8-bit)
RCAP2H
(8-bit)
RCAP2L
(8-bit)
FFh
(8-bit)
FFh
(8-bit)
TOGGLE
(UP COUNTING RELOAD VALUE)
TIMER 2
INTERRUPT
:6
T2CONreg
T2EX:
1=UP
2=DOWN
0
1
CT/2
T2CON.1
TR2
T2CON.2
FT2
CLOCK
see section “Clock”
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T89C51CC01UA-7CTIM | IC 8051 MCU FLASH 32K 64BGA |
| T89C51CC02UA-TDSIM | IC 8051 MCU FLASH 16K 24-SOIC |
| TC520ACOE713 | IC SERIAL INTERFACE ADT 16SOIC |
| TC530COI713 | IC DATA ACQ SUBSYSTEM 28SOIC |
| TDA3653B/N2,112 | IC VERT DEFLECT 9-SIL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T89C51AC2-SLSI-M | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM |
| T89C51AC2-SLTC-M | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM |
| T89C51AC2-SLTE-M | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM |
| T89C51AC2-SLTI-M | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM |
| T89C51CC01 | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Enhanced 8-bit Microcontroller with CAN Controller and Flash Memory |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。