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参数资料
| 型号： | SN54HCT374FK |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | HCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 1/9页 |
| 文件大小： | 171K |
| 代理商： | SN54HCT374FK |
SN54HCT374, SN74HCT374
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCLS005B – MARCH 1984 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Inputs Are TTL-Voltage Compatible
D Eight D-Type Flip-Flops in a Single Package
D High-Current 3-State True Outputs Can
Drive up to 15 LSTTL Loads
D Full Parallel Access for Loading
D Package Options Include Plastic
Small-Outline (DW) and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK), and
Standard Plastic (N) and Ceramic (J)
300-mil DIPs
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
’HCT374
are
edge-triggered D-type flip-flops. On the positive
transition of the clock (CLK) input, the Q outputs
are set to the logic levels that were set up at the
data (D) inputs.
An output-enable (OE) input places the eight
outputs in either a normal logic state (high or low
logic levels) or the 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
interface or pullup components.
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 SN54HCT374 is characterized for operation over the full military temperature range of –55
°C to 125°C. The
SN74HCT374 is characterized for operation from –40
°C to 85°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
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
32 1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
8D
7D
7Q
6Q
6D
2D
2Q
3Q
3D
4D
1D
1Q
OE
5Q
5D
V
8Q
4Q
GND
CLK
SN54HCT374 . . . FK PACKAGE
(TOP VIEW)
CC
SN54HCT374 ...J OR W PACKAGE
SN74HCT374 . . . DW OR N PACKAGE
(TOP VIEW)
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
Copyright
1997, Texas Instruments Incorporated
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 |
|---|---|
| SN54HCT377WR | HCT SERIES, OCTAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, CDFP20 |
| SN54HCT377FKR | HCT SERIES, OCTAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, CQCC20 |
| SN54HCT648JT-00 | HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, CDIP24 |
| SN74HCT646NT-10 | HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDIP24 |
| SN74HCT648DWR-00 | HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54HCT374J | 制造商:Texas Instruments 功能描述:Flip Flop D-Type Bus Interface Pos-Edge 3-ST 1-Element 20-Pin CDIP Tube 制造商:Texas Instruments 功能描述:FLIP FLOP D-TYPE BUS INTRFC POS-EDGE 3-ST 1-ELEM 20CDIP - Rail/Tube |
| SN54HCT541J | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN54HCU04J | 制造商:Texas Instruments 功能描述:HEX INVERTER - Rail/Tube 制造商:Texas Instruments 功能描述:Inverter 6-Element CMOS 14-Pin CDIP Tube |
| SN54L00W | 制造商:MAJOR 功能描述: |
| SN54L46J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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