參數(shù)資料
型號： M4A3-256/128-7YC
廠商： LATTICE SEMICONDUCTOR CORP
元件分類： PLD
英文描述： High Performance E 2 CMOS In-System Programmable Logic
中文描述： EE PLD, 7.5 ns, PQFP208
封裝： PLASTIC, QFP-208
文件頁數(shù)： 9/62頁
文件大小： 1078K
代理商： M4A3-256/128-7YC
ispMACH 4A Family
17
I/O Cell
The I/O cell (Figures 10 and 11) simply consists of a programmable output enable, a feedback path, and
flip-flop (except ispMACH 4A devices with 1:1 macrocell-I/O cell ratio). An individual output enable
product term is provided for each I/O cell. The feedback signal drives the input switch matrix.
The I/O cell (Figure 10) contains a flip-flop, which provides the capability for storing the input in a D-type
register or latch. The clock can be any of the PAL block clocks. Both the direct and registered versions of
the input are sent to the input switch matrix. This allows for such functions as “time-domain-multiplexed”
data comparison, where the first data value is stored, and then the second data value is put on the I/O pin
and compared with the previous stored value.
Note that the flip-flop used in the ispMACH 4A I/O cell is independent of the flip-flops in the macrocells.
It powers up to a logic low.
Zero-Hold-Time Input Register
The ispMACH 4A devices have a zero-hold-time (ZHT) fuse which controls the time delay associated with
loading data into all I/O cell registers and latches. When programmed, the ZHT fuse increases the data path
setup delays to input storage elements, matching equivalent delays in the clock path. When the fuse is erased,
the setup time to the input storage element is minimized. This feature facilitates doing worst-case designs
for which data is loaded from sources which have low (or zero) minimum output propagation delays from
clock edges.
D/L
Q
Block CLK3
Block CLK2
Block CLK1
Block CLK0
To Input
Switch
Matrix
Individual
Output Enable
Product Term
From Output
Switch Matrix
17466G-017
17466G-018
Figure 10. I/O Cell for ispMACH 4A Devices with 2:1
Macrocell-I/O Cell Ratio
Figure 11. I/O Cell for ispMACH 4A Devices with 1:1
Macrocell-I/O Cell Ratio
To Input
Switch
Matrix
Individual
Output Enable
Product Term
From Output
Switch Matrix
Power-up reset
相關(guān)PDF資料
PDF描述
M4A3-32/32-7JC High Performance E 2 CMOS In-System Programmable Logic
M4A3-32/32-7JI High Performance E 2 CMOS In-System Programmable Logic
M4A3-32/32-7VC High Performance E 2 CMOS In-System Programmable Logic
M4A3-32/32-7VI High Performance E 2 CMOS In-System Programmable Logic
M4A3-64/32-55JC High Performance E 2 CMOS In-System Programmable Logic
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M4A3-32/32-10JC 功能描述:CPLD - 復(fù)雜可編程邏輯器件 HI PERF E2CMOS PLD 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
M4A3-32/32-10JI 功能描述:CPLD - 復(fù)雜可編程邏輯器件 HI PERF E2CMOS PLD 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
M4A3-32/32-10JNC 功能描述:CPLD - 復(fù)雜可編程邏輯器件 Use ispMACH 4000V 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
M4A3-32/32-10JNI 功能描述:CPLD - 復(fù)雜可編程邏輯器件 Use ispMACH 4000V 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
M4A3-32/32-10VC 功能描述:CPLD - 復(fù)雜可編程邏輯器件 HI PERF E2CMOS PLD 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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