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NTE3882 PDF预览

NTE3882

更新时间: 2024-01-09 23:52:49
品牌 Logo 应用领域
NTE 计数器计时器或实时时钟微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
4页 32K
描述
Integrated Circuit NMOS, Counter Timer Control (CTC)

NTE3882 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Contact Manufacturer零件包装代码:DIP
包装说明:,针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.78
Is Samacsys:N最大时钟频率:2.5 MHz
外部数据总线宽度:8JESD-30 代码:R-PDIP-T28
JESD-609代码:e0位数:16
端子数量:28计时器数量:4
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified最大供电电压:5.25 V
最小供电电压:4.75 V标称供电电压:5 V
表面贴装:NO技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIEDuPs/uCs/外围集成电路类型:TIMER, PROGRAMMABLE
Base Number Matches:1

NTE3882 数据手册

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NTE3882  
Integrated Circuit  
NMOS, Counter Timer Control (CTC)  
Description:  
The NTE3882 Counter Timer Circuit (CTC) is a programmable, four channel device in a 28–Lead DIP  
type package that provides counting and timing functions for the NTE3880. The NTE3880 configures  
the NTE3882’s four independent channels to operate under various modes and conditions as  
required.  
The internal structure of the NTE3882 consists of an NTE3880 bus interface, internal control logic,  
four counter channels, and interrupt control logic. Each channel has an interrupt vector for automatic  
interrupt vectoring, and interrupt priority is determined by channel number with channel having the  
highest priority.  
The channel logic is composed of 2 registers, 2 counters and control logic. The registers include and  
8–bit time constant register and an 8–bit channel control register. The counters include as 8–bit read-  
able down counter and an 8–bit prescaler. The prescaler may be programmed to divide the system  
clock by either 16 or 256.  
Structure:  
D N–Channel Silicon Gate Depletion Load Technology  
D Single 5V Supply  
D Single Phase 5V Clock  
D Four Independent Programmable 8–Bit Counter/16–Bit Timer Channels  
Features:  
D Each Channel may be Selected to Operate in Either a Counter Mode or Timer Mode  
D Programmable Interrupts on Counter or Timer States  
D A Time Constant Register Automatically Reloads, the Down Counter at Zero and the Cycle is  
Repeated  
D Readable Down Counter Indicates Number of Counts–to–Go until Zero  
D Selectable 16 or 256 Clock Prescaler for Each Timer Channel  
D Selectable Positive or Negative Trigger may Initiate Timer Operation  
D Three Channels have Zero Count/Timeout Outputs capable of Driving Darlington Transistors  
D Daisy Chain Priority Interrupt Logic Included to Provide for Automatic Interrupt Vectoring without  
External Logic  
D All Inputs and Outputs Fully TTL Compatible  

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