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參數(shù)資料
| 型號： | ATF1502BE-5AX44 |
| 廠商： | Atmel |
| 文件頁數(shù)： | 19/24頁 |
| 文件大小： | 0K |
| 描述： | IC CPLD 64MC 1.8V 44-TQFP |
| 標準包裝： | 160 |
| 系列： | ATF15xx |
| 可編程類型： | 系統(tǒng)內(nèi)可編程（最少 10,000 次編程/擦除循環(huán)） |
| 最大延遲時間 tpd(1)： | 7.0ns |
| 電壓電源 - 內(nèi)部： | 1.7 V ~ 1.9 V |
| 宏單元數(shù)： | 32 |
| 輸入/輸出數(shù)： | 32 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-TQFP |
| 供應商設備封裝： | 44-TQFP（10x10） |
| 包裝： | 托盤 |
| 配用： | ATF15XX-DK3-ND - KIT DEV FOR ATF15XX CPLD'S |
4
3492A–PLD–12/05
ATF1502BE
Figure 1-3.
ATF1502BE Macrocell
1.1
Product Terms and Select Mux
Each ATF1502BE macrocell has five product terms. Each product term receives as its inputs all
signals from both the global bus and regional bus.
The product term select multiplexer (PTMUX) allocates the five product terms as needed to the
macrocell logic gates and control signals. The PTMUX programming is determined by the design
compiler, which selects the optimum macrocell configuration.
1.2
OR/XOR/CASCADE Logic
The ATF1502BE’s logic structure is designed to efficiently support all types of logic. Within a sin-
gle macrocell, all the product terms can be routed to the OR gate, creating a 5-input AND/OR
sum term. With the addition of the CASIN from neighboring macrocells, this can be expanded to
as many as 40 product terms with minimal additional delay.
The macrocell’s XOR gate allows efficient implementation of compare and arithmetic functions.
One input to the XOR comes from the OR sum term. The other XOR input can be a product term
or a fixed high or low level. For combinatorial outputs, the fixed level input allows polarity selec-
tion. For registered functions, the fixed levels allow DeMorgan minimization of product terms.
The XOR gate is also used to emulate T- and JK-type flip-flops.
SCHMITT
TRIGGER
BURIED FEEDBACK
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| ATF1502BE-7AU44 | 功能描述:CPLD - 復雜可編程邏輯器件 32 MC CPLD 1.8V ISP RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
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| ATF1502SE-5 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Family Datasheet |
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