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參數(shù)資料
| 型號(hào)： | PEEL22CV10AZTI-25 |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; Body Material:Aluminum; Series:PT00; No. of Contacts:26; Connector Shell Size:16; Connecting Termination:Solder; Circular Shell Style:Wall Mount Receptacle; Circular Contact Gender:Socket |
| 中文描述： | 的CMOS電可擦除可編程邏輯器件 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 475K |
| 代理商： | PEEL22CV10AZTI-25 |
Anachip Corp.
www.anachip.com.tw Rev. 1.0 Dec 16, 2004
4/10
In
addition
to
emulating
the
four
PAL-type
output
structures
(configurations 3, 4, 9, and
10), The macrocell provides eight
additional configurations. Equivalent circuits for the twelve mac-
rocell configurations are illustrated in Figure 22. These structures
are
accessed
by
specifying
the
PEEL22CV10A+
or
PEEL22CV10A++ option when
assembling the equations.
Figure 21 Equivalent Circuits for the Four Con-
figurations of the I/O Macrocell
Table 1. PEEL22CV10A Macrocell
Configuration Bits
Configuration Input/Feedback
Select Output Select
# A B
Output Polarity
Each macrocell can be configured
to implement
active-high or
active-low logic. Programmable polarity eliminates the need for
external inverters.
Output Enable
The output of each I/O macrocell can be enabled or disabled
under the
control of its associated
programmable
output
enable
product term.
When the
logical conditions programmed on the
output enable term are satisfied, the
output signal is propagated to
the I/O pin.
Otherwise, the output buffer is switched into the
high-impedance state.
Under the control
of the output
enable term, the I/O
pin can func-
tion
as a dedicated input,
a
dedicated output, or a bi-directional I/ O.
Opening every
connection
on the
output enable term will per-
manently enable the output buffer and
yield
a dedicated output.
Conversely, if every connection is intact, the enable
term will
always be
logically false and the
I/O will
function as a dedicated
input.
Input/Feedback Select
When configuring an I/O
macrocell to implement a
registered
function (configurations 1
and
2 in Figure
21), the Q
output of the
flip-flop
drives
the feedback term.
When configuring an I/O mac-
rocell to
implement a
combinatorial output
(configurations 3
and
4
in
Figure
21),
the feedback term is taken from
the
I/O pin. In this
case, the pin can
be
used as a
dedicated input or a
bi-direc- tional
I/O (Refer also to
Table 1.)
Programmable Clock Options
A unique feature
of the PEEL22CV10AZ is a programmable
clock multiplexer that allows you to select
true or complement
forms of either the input
pin or a product-term
clock source. This
feature can
be accessed by
specifying the PEEL22CV10A++
option when assembling
the equations.
1
0
0
Register
Feedback
Register
Active Low
2
1
0
Active High
3
0
1
Bi-Directional
I/O
Combinatorial
Active Low
4
Active High
When creating a PEEL device design, the desired macrocell
configuration
is
generally specified
explicitly in
the design file.
When the design is assembled or compiled, the
macrocell config-
uration bits are defined in the last lines of the JEDEC program-
ming file.
Output Type
The signal from the
OR array
can be fed directly to
the output
pin
(combinatorial function) or latched in the D-type flip-flop (regis-
tered function). The
D-type flip-flop latches
data
on the rising
edge of the clock and is
controlled
by the global preset
and clear
terms.
When the
synchronous preset
term
is satisfied, the Q out-
put
of
the
register is set HIGH at
the next rising edge of the clock
input. Satisfying the asynchronous
clear sets Q LOW, regardless of
the clock state. If
both terms are
satisfied simultaneously, the clear
will override the preset.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEEL22CV10AZTI-25L | 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 12 Input 10 I/O 25ns RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24 |
| PEEL22CV10C12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
| PEEL22CV10C15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
| PEEL22CV10C20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
| PEEL22CV10C25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
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