參數(shù)資料
型號(hào)： ATT3042-125S84I
廠商： Electronic Theatre Controls, Inc.
元件分類： FPGA
英文描述： Field-Programmable Gate Arrays
中文描述： 現(xiàn)場(chǎng)可編程門陣列
文件頁(yè)數(shù)： 5/80頁(yè)
文件大?。?/td> 528K
代理商： ATT3042-125S84I
Data Sheet
February 1997
ATT3000 Series Field-Programmable Gate Arrays
Lucent Technologies Inc.
5
I/O Block
Each user-configurable I/O block (IOB), shown in
Figure 3, provides an interface between the external
package pin of the device and the internal user logic.
Each IOB includes both registered and direct input
paths and a programmable 3-state output buffer which
may be driven by a registered or direct output signal.
Configuration options allow each IOB an inversion, a
controlled slew rate, and a high-impedance pull-up.
Each input circuit also provides input clamping diodes
to provide electrostatic protection and circuits to inhibit
latch-up produced by input currents.
The input buffer portion of each IOB provides threshold
detection to translate external signals applied to the
package pin to internal logic levels. The global input-
buffer threshold of the IOB can be programmed to be
compatible with either TTL or CMOS levels. The buff-
ered input signal drives the data input of a storage
element which may be configured as a positive-edge
triggered D flip-flop or a low-level transparent latch. The
sense of the clock can be inverted (negative edge/high
transparent) as long as all IOBs on the same clock net
use the same clock sense. Clock/load signals (IOB pins
.ik and .ok) can be selected from either of two die edge
metal lines. I/O storage elements are reset during con-
figuration or by the active-low chip
RESET
input. Both
direct input (from IOB pin .i) and registered input (from
IOB pin .q) signals are available for interconnect.
Figure 3. Input/Output Block
5-3102(F)
OUT
INVERT
3-STATE
INVERT
OUTPUT
SELECT
SLEW
RATE
PASSIVE
PULL UP
PROGRAM-CONTROLLED MEMORY CELLS
V
CC
OUTPUT
BUFFER
FLIP-
FLOP
D
Q
R
TTL OR
CMOS
INPUT
THRESHOLD
FLIP-
FLOP
OR
LATCH
Q
D
R
.lk
.t
= PROGRAMMABLE INTERCONNECTION POINT OR PIP
CK2
(GLOBAL RESET)
I/O PAD
.o
.i
.q
3-STATE
OUT
DIRECT IN
REGISTERED IN
CK1
PROGRAM-
CONTROLLED
MULTIPLEXER
OUTPUT ENABLE
.ok
相關(guān)PDF資料
PDF描述
ATT3042-125T132I Field-Programmable Gate Arrays
ATT3042-125T44I Field-Programmable Gate Arrays
ATT3042-125T68I Field-Programmable Gate Arrays
ATT3042-125T84I Field-Programmable Gate Arrays
ATT3042-190H132I Field-Programmable Gate Arrays
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATT3042-125T100 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA)
ATT3042-125T100I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA)
ATT3042-125T132I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Gate Arrays
ATT3042-125T144I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA)
ATT3042-125T44I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Gate Arrays
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