参数资料
型号: M4A3-384/192-10AC
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: PLD
英文描述: High Performance E 2 CMOS In-System Programmable Logic
中文描述: EE PLD, 10 ns, PBGA256
封装: BGA-256
文件页数: 9/61页
文件大小: 1072K
代理商: M4A3-384/192-10AC
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 ip-op (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 ip-op, 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 rst 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 ip-op used in the ispMACH 4A I/O cell is independent of the ip-ops 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
相关PDF资料
PDF描述
M4A3-384/192-10AI High Performance E 2 CMOS In-System Programmable Logic
M4A3-384/192-14AI High Performance E 2 CMOS In-System Programmable Logic
M4A3-384/192-65AC High Performance E 2 CMOS In-System Programmable Logic
M4A3-256/128-12AI High Performance E 2 CMOS In-System Programmable Logic
M4A3-256/128-55AC High Performance E 2 CMOS In-System Programmable Logic
相关代理商/技术参数
参数描述
M4A3-512/160-10YC 功能描述:CPLD - 复杂可编程逻辑器件 HI PERF E2CMOS PLD RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
M4A3-512/160-10YI 功能描述:CPLD - 复杂可编程逻辑器件 HI PERF E2CMOS PLD RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
M4A3-512/160-12YC 功能描述:CPLD - 复杂可编程逻辑器件 HI PERF E2CMOS PLD RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
M4A3-512/160-12YI 功能描述:CPLD - 复杂可编程逻辑器件 HI PERF E2CMOS PLD RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
M4A3-512/160-14YI 功能描述:CPLD - 复杂可编程逻辑器件 HI PERF E2CMOS PLD RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100