- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361239 > Q67121C452 IC-SM-8-BIT CPU-12MHZ PDF資料下載
參數(shù)資料
| 型號(hào)： | Q67121C452 |
| 英文描述： | IC-SM-8-BIT CPU-12MHZ |
| 中文描述： | 集成電路釤8位CPU - 12MHz的 |
| 文件頁數(shù)： | 47/121頁 |
| 文件大小： | 1000K |
| 代理商： | Q67121C452 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁當(dāng)前第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁
Semiconductor Group
6-13
On-Chip Peripheral Components
C501
6.2
Timers/Counters
The C501 contains three 16-bit timers/counters, timer 0, 1, and 2, which are useful in many
applications for timing and counting.
In “timer” function, the timer register is incremented every machine cycle. Thus one can think of it
as counting machine cycles. Since a machine cycle consists of 12 oscillator periods, the counter
rate is 1/12 of the oscillator frequency.
In “counter” function, the timer register is incremented in response to a 1-to-0 transition (falling
edge) at its corresponding external input pin, T0, T1, or T2 (alternate functions of P3.4, P3.5 and
P1.0 resp.). In this function the external input is sampled during S5P2 of every machine cycle. When
the samples show a high in one cycle and a low in the next cycle, the count is incremented. The
new count value appears in the register during S3P1 of the cycle following the one in which the
transition was detected. Since it takes two machine cycles (24 oscillator periods) to recognize a 1-
to-0 transition, the maximum count rate is 124 of the oscillator frequency. There are no restrictions
on the duty cycle of the external input signal, but to ensure that a given level is sampled at least
once before it changes, it must be held for at least one full machine cycle.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| Q67126-C2088 | RF inductor, ceramic core, 2% tol, SMT, RoHS |
| Q67127-C2036SAB-C161R1-L16M | IC-SM-16 BIT CPU |
| Q67120-C2200 | 16-Bit Single-Chip Microcontroller Bare Die Delivery |
| Q67120-C1054 | High Speed CMOS Logic Triple 3-Input NOR Gates 14-SOIC -55 to 125 |
| Q67120-C1056 | High Speed CMOS Logic Triple 3-Input NOR Gates 14-SOIC -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Q67121-C848 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller |
| Q67121-C862 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:C16x-Family of High-Performance CMOS 16-Bit Microcontrollers |
| Q67121-C900 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller |
| Q67121-C923 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:C16x-Family of High-Performance CMOS 16-Bit Microcontrollers |
| Q67121-C942 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。