- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄169782 > COP8SGR740N7XXX (NATIONAL SEMICONDUCTOR CORP) 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PDIP40 PDF資料下載
參數(shù)資料
| 型號： | COP8SGR740N7XXX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數(shù)： | 11/62頁 |
| 文件大?。?/td> | 840K |
| 代理商： | COP8SGR740N7XXX |
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頁當(dāng)前第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
5.0 Functional Description (Continued)
5.10.1 Crystal Oscillator
The crystal Oscillator mode can be selected by programming
ECON Bit 4 to 1. CKI is the clock input while G7/CKO is the
clock generator output to the crystal. An on-chip bias resistor
connected between CKI and CKO can be enabled by pro-
gramming ECON Bit 3 to 1 with the crystal oscillator option
selection. The value of the resistor is in the range of 0.5M to
2M (typically 1.0M).
Table 2 shows the component values
required for various standard crystal values. Resistor R2 is
only used when the on-chip bias resistor is disabled.
Figure
13 shows the crystal oscillator connection diagram.
TABLE 2. Crystal Oscillator Configuration,
T
A = 25C, VCC =5V
R1 (k
)R2 (M)
C1 (pF)
C2 (pF)
CKI Freq.
(MHz)
0
1
18
15
0
1
20
10
0
1
25
4
5.6
1
100
100–156
0.455
5.10.2 External Oscillator
The External Oscillator mode can be selected by program-
ming ECON Bit 3 to 0 and ECON Bit 4 to 0. CKI can be
driven by an external clock signal provided it meets the
specified duty cycle, rise and fall times, and input levels.
G7/CKO is available as a general purpose input G7 and/or
Halt control.
Figure 14 shows the external oscillator connec-
tion diagram.
5.10.3 R/C Oscillator
The R/C Oscillator mode can be selected by programming
ECON Bit 3 to 1 and ECON Bit 4 to 0. In R/C oscillation
mode, CKI is left floating, while G7/CKO is available as a
general purpose input G7 and/or HALT control. The R/C
controlled oscillator has on-chip resistor and capacitor for
maximum R/C oscillator frequency operation. The maximum
frequency is 5 MHz ± 35% for V
CC between 4.5V to 5.5V
and temperature range of 40C to +85C. For max fre-
quency operation, the CKI pin should be left floating. For
lower frequencies, an external capacitor should be con-
nected between CKI and either V
CC or GND. Immunity of the
R/C oscillator to external noise can be improved by connect-
ing one half the external capacitance to V
CC and one half to
GND. PC board trace length on the CKI pin should be kept
as short as possible.
Table 3 shows the oscillator frequency
as a function of external capacitance on the CKI pin.
Figure
15 shows the R/C oscillator configuration.
TABLE 3. R/C Oscillator Configuration,
40C to +85C, V
CC = 4.5V to 5.5V,
OSC Freq. Variation of ± 35%
External
Capacitor (pF)*
R/C OSC Freq
(MHz)
Instr. Cycle
(s)
0
5
2.0
9
4
2.5
52
2
5.0
125
1
10
6100
32 kHz
312.5
* Assumes 3-5 pF board capacitance.
With On-Chip Bias Resistor
DS101317-17
Without On-Chip Bias Resistor
DS101317-18
FIGURE 13. Crystal Oscillator
COP8SG
Family
www.national.com
19
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CP-1094-AST | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, SOLDER, RECEPTACLE |
| CP-1094-U | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, SOLDER, RECEPTACLE |
| CP-AD519 | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, SOLDER, RECEPTACLE |
| CP-79-20BM2 | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, CRIMP/SOLDER, JACK |
| CP-79-20BM1 | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, CRIMP/SOLDER, JACK |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| COP8SGR740N8 | 功能描述:IC MCU 8BIT CMOS OTP 40DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:COP8™ 8SG 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| COP8SGR740N8/NOPB | 制造商:Texas Instruments 功能描述: |
| COP8SGR744V8 | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| COP8SGR744V8 | 制造商:Texas Instruments 功能描述:8BIT MCU OTP 32K 8SGR744 PLCC44 |
| COP8SGR744V8/63 | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。