參數(shù)資料
型號(hào)： EPF8636A
廠商： Altera Corporation
英文描述： PROGRAMMABLE LOGIC DEVICES FAMILY
中文描述： 系列可編程邏輯元件
文件頁(yè)數(shù)： 3/61頁(yè)
文件大?。?/td> 979K
代理商： EPF8636A
Altera Corporation
3
FLEX 8000 Programmable Logic Device Family Data Sheet
FLEX 8000 devices provide a large number of storage elements for
applications such as digital signal processing (DSP), wide-data-path
manipulation, and data transformation. These devices are an excellent
choice for bus interfaces, TTL integration, coprocessor functions, and
high-speed controllers. The high-pin-count packages can integrate
multiple 32-bit buses into a single device.
Table 3
shows FLEX 8000
performance and LE requirements for typical applications.
All FLEX 8000 device packages provide four dedicated inputs for
synchronous control signals with large fan-outs. Each I/O pin has an
associated register on the periphery of the device. As outputs, these
registers provide fast clock-to-output times; as inputs, they offer quick
setup times.
The logic and interconnections in the FLEX 8000 architecture are
configured with CMOS SRAM elements. FLEX 8000 devices are
configured at system power-up with data stored in an industry-standard
parallel EPROM or an Altera serial Configuration EPROM device, or with
data provided by a system controller. Altera offers the EPC1, EPC1213,
EPC1064, and EPC1441 Configuration EPROMs, which configure
FLEX 8000 devices via a serial data stream. Configuration data can also be
stored in an industry-standard 32 K
×
8 bit or larger EPROM, or
downloaded from system RAM. After a FLEX 8000 device has been
configured, it can be reconfigured in-circuit by resetting the device and
loading new data. Because reconfiguration requires less than 100 ms, real-
time changes can be made during system operation.
f
For information on how to configure FLEX 8000 devices, go to the
following documents:
I
I
I
I
I
Configuration EPROMs for FLEX Devices Data Sheet
BitBlaster Serial Download Cable Data Sheet
ByteBlaster Parallel Port Download Cable Data Sheet
Application Note 33 (Configuring FLEX 8000 Devices)
Application Note 38 (Configuring Multiple FLEX 8000 Devices)
Table 3. FLEX 8000 Performance
Application
LEs Used
A-2 Speed Grade A-3 Speed Grade
A-4 Speed
Grade
Units
16-bit loadable counter
16
125
95
83
MHz
16-bit up/down counter
16
125
95
83
MHz
24-bit accumulator
24
87
67
58
MHz
16-bit address decode
4
4.2
4.9
6.3
ns
16-to-1 multiplexer
10
6.6
7.9
9.5
ns
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