- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363666 > NSC800E (National Semiconductor Corporation) NSC800TM High-Performance Low-Power CMOS Microprocessor PDF資料下載
參數(shù)資料
| 型號： | NSC800E |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | NSC800TM High-Performance Low-Power CMOS Microprocessor |
| 中文描述： | NSC800TM高性能低功耗CMOS微處理器 |
| 文件頁數(shù)： | 9/76頁 |
| 文件大小： | 785K |
| 代理商： | NSC800E |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第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
6.0 Pin Descriptions
(Continued)
Status (SO, S1):
Bus status outputs provide encoded infor-
mation regarding the current M cycle as follows:
Machine Cycle
Status
Control
S0
S1
IO/M
RD
WR
Opcode Fetch
Memory Read
Memory Write
I/O Read
I/O Write
Halt
*
Internal Operation
*
Acknowledge of Int
**
1
0
1
0
1
0
0
1
1
1
0
1
0
0
1
1
0
0
0
1
1
0
0
0
0
0
1
0
1
0
1
1
1
1
0
1
0
1
1
1
*
ALE is not suppressed in this cycle.
**
This is the cycle that occurs immediately after the CPU accepts an inter-
rupt (RSTA, RSTB, RSTC, INTR, NMI).
Note 1:
During halt, CPU continues to do dummy opcode fetch from location
following the halt instruction with a halt status. This is so CPU can continue
to do its dynamic RAM refresh.
Note 2:
No early status is provided for interrupt or hardware restarts.
6.3 INPUT/OUTPUT SIGNALS
Multiplexed Address/Data
[
AD(0–7)
]
: Active high
At RD Time:
Input data to CPU.
At WR Time:
Output data from CPU.
At Falling Edge Least significant byte of address
of ALE Time:
during memory reference cycle. 8-bit
port address during I/O reference
cycle.
During BREQ/ High impedance.
BACK Cycle:
7.0 Connection Diagrams
Dual-In-Line Package
Top View
TL/C/5171–10
Order Number NSC800D or N
See NS Package D40C or N40A
Chip Carrier Package
Top View
TL/C/5171–11
Order Number NSC800E or V
See NS Package E44B or V44A
9
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NSC800N | NSC800TM High-Performance Low-Power CMOS Microprocessor |
| NSC800V | NSC800TM High-Performance Low-Power CMOS Microprocessor |
| NSC858 | NSC858 Universal Asynchronous Receiver/Transmitter |
| NSC858D | NSC858 Universal Asynchronous Receiver/Transmitter |
| NSC858E | NSC858 Universal Asynchronous Receiver/Transmitter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NSC800E-1/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microprocessor |
| NSC800E-1M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microprocessor |
| NSC800E-3/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microprocessor |
| NSC800E-3M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microprocessor |
| NSC800E-4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microprocessor |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。