參數(shù)資料
型號(hào): COP404C
廠商: National Semiconductor Corporation
英文描述: COP404C ROMless CMOS Microcontrollers
中文描述: COP404C無(wú)ROM的CMOS微控制器
文件頁(yè)數(shù): 16/18頁(yè)
文件大小: 345K
代理商: COP404C
Emulation
The COP404C may be used to exactly emulate the
COP444C/445C, COP424C/425C, and COP410C/411C.
However, the Program Counter always addresses 2k of ex-
ternal ROM whatever chip is being emulated. Figure 14
shows the interconnect to implement a hardware emulation.
This connection uses a NMC27C16 EPROM as external
memory. Other memory can be used such as bipolar PROM
or RAM.
Pins IP7–IP0 are bidirectional inputs and outputs. When the
AD/DATA clocking output turns on, the EPROM drivers are
disabled and IP7–IP0 output addresses. The 8-bit latch
(MM74C373) latches the addresses to drive the memory.
TL/DD/5530–14
FIGURE 14. COP404C Used To Emulate A COP444C
16
相關(guān)PDF資料
PDF描述
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COP404CN COP404C ROMless CMOS Microcontrollers
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
COP404CN 制造商:NSC 制造商全稱:National Semiconductor 功能描述:COP404C ROMless CMOS Microcontrollers
COP404LSN-5 制造商:NSC 制造商全稱:National Semiconductor 功能描述:COP404LSN-5 ROMLESS N-CHANNEL MICROCONTROLLERS
COP404N 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
COP410C 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Single-Chip CMOS Microcontrollers
COP410C-XXX/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller