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参数资料
| 型号： | SN54BCT574W |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | BCT/FBT SERIES, 8-BIT DRIVER, TRUE OUTPUT, CDFP20 |
| 封装： | CERAMIC, DFP-20 |
| 文件页数： | 1/8页 |
| 文件大小： | 123K |
| 代理商： | SN54BCT574W |
SN54BCT574, SN74BCT574
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS074B – SEPTEMBER 1991 – REVISED NOVEMBER 1993
Copyright
1993, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art BiCMOS Design
Significantly Reduces ICCZ
ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015; Exceeds
200 V Using Machine Model (C = 200 pF,
R = 0)
Full Parallel Access for Loading
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
These 8-bit flip-flops feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads. They are
particularly suitable for implementing buffer
registers, I/O ports, bidirectional bus drivers, and
working registers.
The
eight
flip-flops
of
the
′BCT574 are
edge-triggered D-type flip-flops. On the positive
transition of the clock (CLK) input, the Q outputs
will be set to the logic levels that were set up at the
data (D) inputs.
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-
impedance state. In the high-impedance state, the
outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide
the capability to drive bus lines without need for interface or pullup components.
The output enable (OE) does not affect the internal operations of the flip-flops. Old data can be retained or new
data can be entered while the outputs are in the high-impedance state.
The SN54BCT574 is characterized for operation over the full military temperature range of – 55
°C to 125°C. The
SN74BCT574 is characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
(each flip-flop)
INPUTS
OUTPUT
OE
CLK
D
Q
L
↑
H
L
↑
LL
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
1D
2D
3D
4D
5D
6D
7D
8D
GND
VCC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
CLK
SN54BCT574 ...J OR W PACKAGE
SN74BCT574 . . . DW OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
2Q
3Q
4Q
5Q
6Q
3D
4D
5D
6D
7D
2D
1D
OE
8Q
7Q
1Q
8D
GND
CLK
V
CC
SN54BCT574 . . . FK PACKAGE
(TOP VIEW)
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.
相关PDF资料 |
PDF描述 |
|---|---|
| SN54BCT620AJ-00 | BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDIP20 |
| SN54BCT620AWR | BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDFP20 |
| SN54BCT620AW | BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDFP20 |
| SN54BCT623FK | BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20 |
| SN54BCT640J | BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDIP20 |
相关代理商/技术参数 |
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