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參數(shù)資料
| 型號： | COP8SEC5 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 8-Bit CMOS ROM Based and OTP Microcontrollers with 4k Memory and 128 Bytes EERAM |
| 中文描述： | 8位的CMOS基于ROM和OTP微控制器與4K的內(nèi)存和128字節(jié)伊拉姆 |
| 文件頁數(shù)： | 3/47頁 |
| 文件大?。?/td> | 491K |
| 代理商： | COP8SEC5 |
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1.0 Device Description
(Continued)
memory to the CPU. This instruction can be used for table
lookup and to read the entire program memory for checksum
calculations.
RETSK:
(Return Skip); Single byte instruction allows return
from subroutine and skips next instruction. Decision to
branch can be made in the subroutine itself, saving code.
AUTOINC/DEC:
(Auto-Increment/Auto-Decrement); These
instructions use the two memory pointers B and X to effi-
ciently process a block of data (analogous to “FOR NEXT” in
higher level languages).
1.2.3 Bit-Level Control
Bit-level control over many of the microcontroller’s I/O ports
provides a flexible means to ease layout concerns and save
board space. All members of the COP8 family provide the
ability to set, reset and test any individual bit in the data
memory address space, including memory-mapped I/O ports
and associated registers.
1.2.4 Register Set
Three memory-mapped pointers handle register indirect ad-
dressing and software stack pointer functions. The memory
data pointers allow the option of post-incrementing or post-
decrementing with the data movement instructions (LOAD/
EXCHANGE). And 15 memory-maped registers allow de-
signers to optimize the precise implementation of certain
specific instructions.
1.3 PACKAGING/PIN EFFICIENCY
Real estate and board configuration considerations demand
maximum space and pin efficiency, particularly given today’s
high integration and small product form factors. Microcontrol-
ler users try to avoid using large packages to get the I/O
needed. Large packages take valuable board space and in-
crease device cost, two trade-offs that microcontroller de-
signs can ill afford.
The COP8 family offers a wide range of packages and does
not waste pins: up to 90.9% (or 40 pins in the 44-pin pack-
age, these packages are not available on all COP8 devices)
are devoted to useful I/O.
Connection Diagrams
DS100973-6
Top View
Order Number COP8SEC516M
See NS Package Number M16B
DS100973-43
Top View
Order Number COP8SEC520M or COP8SER720M
See NS Package Number M20B
FIGURE 2. Connection Diagrams
www.national.com
3
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PDF描述 |
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| COP8SEC516M | 8-Bit CMOS ROM Based and OTP Microcontrollers with 4k Memory and 128 Bytes EERAM |
| COP8SEC520M | 8-Bit CMOS ROM Based and OTP Microcontrollers with 4k Memory and 128 Bytes EERAM |
| COP8SER7-RE | 8-Bit CMOS ROM Based and OTP Microcontrollers with 4k Memory and 128 Bytes EERAM |
| COP8SE | 8-Bit CMOS ROM Based and OTP Microcontrollers with 4k Memory and 128 Bytes EERAM(8位基于CMOS ROM和一次可編程的帶4K存儲器和128字節(jié)的EERAM微控制器) |
| COP8SGA928D3 | 8-Bit CMOS ROM Based and OTP Microcontrollers with 8k to 32k Memory, Two Comparators and USART |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| COP8SEC516M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:8-Bit CMOS ROM Based and OTP Microcontrollers with 4k Memory and 128 Bytes EERAM |
| COP8SEC516M7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| COP8SEC516M8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| COP8SEC520M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:8-Bit CMOS ROM Based and OTP Microcontrollers with 4k Memory and 128 Bytes EERAM |
| COP8SEC520M7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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