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參數資料
| 型號： | IDT74FCT543CL |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 總線收發器 |
| 英文描述： | FAST CMOS OCTAL LATCHED TRANSCEIVER |
| 中文描述： | FCT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| 封裝： | LCC-28 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 149K |
| 代理商： | IDT74FCT543CL |
1
IDT54/74FCT543/A/C
FAST CMOS OCTAL LATCHED TRANSCEIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AUGUST 1999
1999 Integrated Device Technology, Inc.
DSC-4602/3
c
IDT54/74FCT543/A/C
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS
OCTAL LATCHED
TRANSCEIVER
DESCRIPTION:
The IDT54/74FCT543/A/C is a non-inverting octal transceiver built
using an advanced dual metal CMOS technology. These devices contain
two sets of eight D-type latches with separate input and output controls for
each set. For data flow fromA to B, for example, the A-to-B Enable (
CEAB
)
input must be low in order to enter data fromA
0
–A
7
or to take data fromB
0
–
B
7
, as indicated in the Function Table. With
CEAB
low, a low signal on the
A-to-B Latch Enable (
LEAB
) input makes the A-to-B latches transparent; a
subsequent low-to-high transition of the
LEAB
signal puts the A latches in
the storage mode and their outputs no longer change with the A inputs. With
CEAB
and
OEAB
both low, the 3-state B output buffers are active and reflect
the data present at the output of the A latches. Control of data fromB to A
is simlar, but uses the
CEBA
,
LEBA
and
OEBA
inputs.
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
IDT54/74FCT543 equivalent to FAST speed
IDT54/74FCT543A 25% faster than FAST
IDT54/74FCT543C 40% faster than FAST
Equivalent to FAST output drive over full temperature and voltage
supply extremes
I
OL
= 64mA (commercial), 48mA (mlitary)
Separate controls for data flow in each direction
Back-to-back latches for storage
CMOS power levels (1mW typ. static)
Substantially lower input current levels than FAST
(5μA max.)
TTL input and output level compatible
CMOS output level compatible
Product available in Radiation Tolerant and Radiation Enhanced
versions
Mlitary product compliant to MIL-STD-883, Class B
Q
D
LE
A
0
B
0
Q
D
LE
DETAIL A x 7
DETAIL A
A
1
A
2
A
3
A
4
A
5
A
6
A
7
B
1
B
2
B
3
B
4
B
5
B
6
B
7
OEAB
CEAB
LEAB
OEBA
CEBA
LEBA
4
5
6
7
8
9
10
2
23
1
3
22
21
20
19
18
17
16
15
13
11
14
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