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參數(shù)資料
| 型號： | PALCE20V8Q-20JI/4 |
| 廠商： | LATTICE SEMICONDUCTOR CORP |
| 元件分類： | PLD |
| 英文描述： | EE CMOS 24-Pin Universal Programmable Array Logic |
| 中文描述： | EE PLD, 20 ns, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 21/25頁 |
| 文件大?。?/td> | 479K |
| 代理商： | PALCE20V8Q-20JI/4 |
PALCE20V8 Family
5
USE
GAL
DEVICES
FOR
NEW
DESIGNS
Dedicated Input in a Non-Registered Device
The control bit settings are SG0 = 1, SG1 = 0 and SL0x = 1. The output buffer is disabled. The
feedback signal is an adjacent I/O pin.
Combinatorial I/O in a Non-Registered Device
The control settings are SG0 = 1, SG1 = 1, and SL0x = 1. Only seven product terms are available
to the OR gate. The eighth product term is used to enable the output buffer. The signal at the
I/O pin is fed back to the AND array via the feedback multiplexer. This allows the pin to be used
as an input.
Combinatorial I/O in a Registered Device
The control bit settings are SG0=0,SG1=1 and SL0x =1. Only seven product terms are available
to the OR gate. The eighth product term is used as the output enable. The feedback signal is the
corresponding I/O signal.
Table 1. Macrocell Conguration
SG0
SG1
SL0X
Cell
Conguration
Devices
Emulated
SG0
SG1
SL0X
Cell
Conguration
Devices
Emulated
Device Uses Registers
Device Uses No Registers
0
1
0
Registered Output
PAL20R8, 20R6,
20R4
100
Combinatorial
Output
PAL20L2, 18L4,
16L6, 14L8
011
Combinatorial
I/O
PAL20R6, 20R4
1
0
1
Input
PAL20L2, 18L4, 16L6
111
Combinatorial
I/O
PAL20L8
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| PALCE22V10H-10JI/5 | 24-Pin EE CMOS (Zero Power) Versatile PAL Device |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PALCE20V8Q-20JI5 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:EE CMOS 24-Pin Universal Programmable Array Logic |
| PALCE20V8Q-20PC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:EE CMOS 24-Pin Universal Programmable Array Logic |
| PALCE20V8Q-20PC4 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:EE CMOS 24-Pin Universal Programmable Array Logic |
| PALCE20V8Q-20PC5 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:EE CMOS 24-Pin Universal Programmable Array Logic |
| PALCE20V8Q-20PI | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:EE CMOS 24-Pin Universal Programmable Array Logic |
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