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參數(shù)資料
| 型號： | COP313C |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Single-Chip CMOS Microcontrollers |
| 中文描述： | 單芯片的CMOS微控制器 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 223K |
| 代理商： | COP313C |
Functional Description
(Continued)
I/O CONFIGURATIONS
COP413C outputs have the following configurations, illus-
trated in Figure 7:
a. Standard SO, SK Output. A CMOS push-pull buffer with
an N-channel device to ground in conjunction with a
P-channel device to V
CC
, compatible with CMOS and
LSTTL.
b. Low Current G Output. This is the same configuration as
(a) above except that the sourcing current is much less.
c. Standard TRI-STATE L Output. L output is a CMOS out-
put buffer similar to (a) which may be disabled by pro-
gram control.
The SI and RESET inputs are Hi-Z inputs (Figure 7d).
When using the G I/O port as an input, set the output regis-
ter to a logic ‘‘1’’ level. The P-channel device will act as a
pull-up load. When using the L I/O port as an input, disable
the L drivers with the LEI instruction. The drivers are then in
TRI-STATE mode and can be driven externally.
All output drivers use one or more of three common devices
numbered 1 to 3. Minimum and maximum current (I
OUT
and
V
OUT
) curves are given inFigure 8 for each of these devices
to allow the designer to effectively use these I/O configura-
tions.
a. Standard Push-Pull Output
b. Low Current Push-Pull Output
TL/DD/8537–7
c. Standard TRI-STATE
‘‘L’’ Output
d. Hi-Z Input
FIGURE 7. I/O Configurations
SO, SK, L Port, G Port
Minimum Sink Current
SO, SK, L Port Standard
Minimum Source Current
G Port Low Current
Minimum Source Current
COP413C/COP413CH
Low Current G Port
Maximum Source Current
COP313C/COP313CH
Low Current G Port
Maximum Source Current
Maximum Quiescent Current
TL/DD/8537–8
FIGURE 8
10
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| COP313CH | Single-Chip CMOS Microcontrollers |
| COP413C | Single-Chip CMOS Microcontrollers |
| COP470 | COP470 V.F Display Driver |
| COP472-3 | COP472-3 Liquid Crystal Display Controller |
| COP472MW-3 | COP472-3 Liquid Crystal Display Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| COP313CH | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Single-Chip CMOS Microcontrollers |
| COP313CH-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 |
| COP313CH-XXX/N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
| COP313C-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 |
| COP313C-XXX/N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
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