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74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
January 2008
74AC244, 74ACT244
Octal Buffer/Line Driver with 3-STATE Outputs
Features
■
I
CC
and I
OZ
reduced by 50%
■
3-STATE outputs drive bus lines or buffer memory
General Description
The AC/ACT244 is an octal buffer and line driver
designed to be employed as a memory address driver,
clock driver and bus-oriented transmitter/receiver which
provides improved PC board density.
address registers
■
Outputs source/sink 24mA
■
ACT244 has TTL-compatible inputs
Ordering Information
Order Number
74AC244SC
74AC244SJ
74AC244MTC
74AC244PC
74ACT244SC
74ACT244SJ
74ACT244MSA
74ACT244MTC
74ACT244PC
Package
Number
M20B
M20D
MTC20
N20A
M20B
M20D
MSA20
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
空分复用 (SDM) MIMO 处理可显著提高频谱效率，进而大幅增加无线通信系统的容量。空分复用 MIMO 通信系统作为一种能够大幅提升无线系统容量和连接可靠性的手段，近来吸引了人们的广泛关注。 MIMO 无线系统最佳硬判决检测方式是最大似然 (ML) 检测器。ML 检测因为比特误码率 (BER)性能出众，非常受欢迎。不过，直接实施的复杂性会随着天线和调制方案的增加呈指数级增强，使...[详细]
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