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参数资料
| 型号： | SN54BCT534WR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | BCT/FBT SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CDFP20 |
| 封装： | CERAMIC, FP-20 |
| 文件页数： | 1/6页 |
| 文件大小： | 88K |
| 代理商： | SN54BCT534WR |
SN54BCT534, SN74BCT534
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS033B – AUGUST 1989 – REVISED NOVEMBER 1993
Copyright
1993, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art BiCMOS Design
Significantly Reduces ICCZ
Full Parallel Access for Loading
Buffered Control Inputs
3-State Bus-Driving Inverted Outputs
ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Plastic and Ceramic 300-mil DIPs (J, N)
description
The
′BCT534 is an 8-bit flip-flop with 3-state
outputs designed specifically for driving highly
capacitive or relatively low-impedance loads. It is
particularly suitable for implementing buffer
registers, I/O ports, bidirectional bus drivers, and
working registers.
The
eight
flip-flops
of
the
′BCT534 are
edge-triggered D-type flip-flops. On the positive
transition of the clock, the Q outputs will be set to
the complement of the logic levels that were set up
at the data (D) inputs. The
′BCT534 provides
inverted data at its outputs.
A buffered output-enable (OE) input can be used
to place the eight outputs in either a normal logic
state (high or low logic levels) or a high-imped-
ance state. In the high-impedance state, the
outputs neither load nor drive the bus lines
significantly. The high-impedance state and the
increased drive provide the capability to drive bus
lines without need for interface or pullup
components.
The output-enable (OE) input does not affect the internal operations of the flip-flop. Previously stored data can
be retained or new data can be entered while the outputs are in the high-impedance state.
The SN54BCT534 is characterized for operation over the full military temperature range of – 55
°C to 125°C. The
SN74BCT534 is characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
(each flip-flop)
INPUTS
OUTPUT
OE
CLK
D
Q
L
↑
H
L
↑
LH
L
H or L
X
Q0
H
X
Z
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
VCC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
SN54BCT534 ...J OR W PACKAGE
SN74BCT534 . . . DW OR N PACKAGE
(TOP VIEW)
32
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
8D
7D
7Q
6Q
6D
2D
2Q
3Q
3D
4D
SN54BCT534 . . . FK PACKAGE
(TOP VIEW)
1D
1Q
OE
5Q
5D
8Q
4Q
GND
CLK
V
CC
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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