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參數(shù)資料
型號(hào): IDT74FCT162260ETPA
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 通用總線功能
英文描述: FAST CMOS 12-BIT TRI-PORT BUS EXCHANGER
中文描述: FCT SERIES, 12-BIT EXCHANGER, TRUE OUTPUT, PDSO56
封裝: TSSOP-56
文件頁數(shù): 1/8頁
文件大小: 132K
代理商: IDT74FCT162260ETPA
Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AUGUST 1996
1996 Integrated Device Technology, Inc.
5.4
DSC-3032/6
1
IDT54/74FCT16260AT/CT/ET
IDT54/74FCT162260AT/CT/ET
FAST CMOS
12-BIT TRI-PORT
BUS EXCHANGER
FEATURES:
Common features:
0.5 MICRON CMOS Technology
High-speed, low-power CMOS replacement for
ABT functions
Typical t
SK
(o) (Output Skew) < 250ps
Low input and output leakage
1
μ
A (max.)
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
Extended commercial range of -40
°
C to +85
°
C
V
CC
= 5V
±
10%
Features for FCT16260AT/CT/ET:
High drive outputs (-32mA I
OH
, 64mA I
OL
)
Power off disable outputs permit “l(fā)ive insertion”
Typical V
OLP
(Output Ground Bounce) < 1.0V at
V
CC
= 5V, T
A
= 25
°
C
Features for FCT162260AT/CT/ET:
Balanced Output Drivers:
±
24mA (commercial),
±
16mA (military)
Reduced system switching noise
Typical V
OLP
(Output Ground Bounce) < 0.6V at
V
CC
= 5V,T
A
= 25
°
C
DESCRIPTION:
The FCT16260AT/CT/ET and the FCT162260AT/CT/ET
Tri-Port Bus Exchangers are high-speed 12-bit latched bus
multiplexers/transceivers for use in high-speed microproces-
sor applications. These Bus Exchangers support memory
interleaving with latched outputs on the B ports and address
multiplexing with latched inputs on the B ports.
The Tri-Port Bus Exchanger has three 12-bit ports. Data
may be transferred between the A port and either/both of the
B ports. The latch enable (LE1B, LE2B, LEA1B and LEA2B)
inputs control data storage. When a latch-enable input is
HIGH, the latch is transparent. When a latch-enable input is
LOW, the data at the input is latched and remains latched until
the latch enable input is returned HIGH. Independent output
enables (
OE1B
and
OE2B
) allow reading from one port while
writing to the other port.
The FCT16260AT/CT/ET are ideally suited for driving high
capacitance loads and low impedance backplanes. The
output buffers are designed with power off disable capability
to allow "live insertion" of boards when used as backplane
drivers.
The FCT162260AT/CT/ET have balanced output drive
with current limiting resistors. This offers low ground bounce,
minimal undershoot, and controlled output fall times - reduc-
ing the need for external series terminating resistors.
A-1B
LATCH
LEA1B
LE1B
LE2B
12
M
U
X
12
OE1B
12
A
1:12
1B-A
LATCH
1B
1:12
12
12
12
2B-A
LATCH
12
12
A-2B
LATCH
LEA2B
12
2B
1:12
OE2B
OEA
SEL
1
0
3032 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FUNCTIONAL BLOCK DIAGRAM
相關(guān)PDF資料
PDF描述
IDT74FCT162260ETPAB FAST CMOS 12-BIT TRI-PORT BUS EXCHANGER
IDT74FCT162260ETPF FAST CMOS 12-BIT TRI-PORT BUS EXCHANGER
IDT74FCT162260ETPFB FAST CMOS 12-BIT TRI-PORT BUS EXCHANGER
IDT74FCT162260ETPV FAST CMOS 12-BIT TRI-PORT BUS EXCHANGER
IDT74FCT162260ETPVB FAST CMOS 12-BIT TRI-PORT BUS EXCHANGER
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