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参数资料
| 型号： | EPF10K200S |
| 厂商： | Altera Corporation |
| 英文描述： | Embedded Programmable Logic Family(FLEX10KE嵌入式可编程逻辑系列) |
| 中文描述： | 嵌入式可编程逻辑系列（FLEX10KE嵌入式可编程逻辑系列） |
| 文件页数： | 5/20页 |
| 文件大小： | 322K |
| 代理商： | EPF10K200S |
Altera Corporation
5
PIB 21: Implementing Logic with the Embedded Array in FLEX 10K Devices
Symmetric Multiplier
A symmetric multiplier multiplies two inputs of the same width. An EAB
can easily implement a 4
×
4 multiplier, which has two 4-bit inputs and
one 8-bit output. The EAB drives the two multiplicands into the address
input and reads the product from the data output. For example, to
multiply the number 2 by the number 4, 4 bits of the address input
represent the number 2, and the other 4 bits represent the number 4.
Because multiplication is commutative, address locations 24 and 42 both
store the value 08.
Designers can create larger multipliers by using parallel multipliers or
time-domain-multiplexed multipliers to combine EABs.
Parallel Multiplier
A parallel multiplier uses multiple EABs to generate all partial products
in parallel. A parallel multiplier uses 4 EABs for an 8
(i.e., 1 EAB for each partial product). Each of the 4 EABs simultaneously
processes a portion of the input to generate a 4
total of four 4
×
4 products. A two-stage adder implemented in the logic
cells produces the final result. For example, MN is multiplied by XY in
Figure 2
. Each letter in the multiplicands represents four bits of the input;
M represents the four most significant bits (MSBs), and N represents the
four least significant bits (LSBs). Before summing the products, the
products are multiplied by 16
n
(where
relative significance in hexadecimal radix. Larger multipliers are created
with additional EABs.
×
8 multiplier
×
4 product, yielding a
n
= 0, 1, 2...) to account for their
Figure 2. 8
×
8 Multiplier Implemented in an EAB
MN
×
XY
One EAB computes
each partial product.
Adder sums the
shifted products.
MY
NX
NY
+
MX
MX
×
16
2
+ (MY + NX)
×
16
1
+ NY
×
16
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EPF10K200SBC356-1 | 功能描述:FPGA - 现场可编程门阵列 FPGA - Flex 10K 1248 LABs 274 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
| EPF10K200SBC356-1X | 功能描述:FPGA - 现场可编程门阵列 FPGA - Flex 10K 1248 LABs 274 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
| EPF10K200SBC356-2 | 功能描述:FPGA - 现场可编程门阵列 FPGA - Flex 10K 1248 LABs 274 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
| EPF10K200SBC356-2X | 功能描述:FPGA - 现场可编程门阵列 FPGA - Flex 10K 1248 LABs 274 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
| EPF10K200SBC356-3 | 功能描述:FPGA - 现场可编程门阵列 FPGA - Flex 10K 1248 LABs 274 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256 |
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