参数资料
型号: SN54HC373FK
厂商: Texas Instruments, Inc.
英文描述: 1-Phase 5-Bit Synchronous Rectification Buck Controller for Computer; Package: SOIC-20 WB; No of Pins: 20; Qty per Container: 38
中文描述: 八路透明D类锁存器具有三态输出
文件页数: 1/7页
文件大小: 107K
代理商: SN54HC373FK
SN54HC373, SN74HC373
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCLS140B – DECEMBER 1982 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Eight High-Current Latches in a Single
Package
High-Current 3-State True Outputs Can
Drive up to 15 LSTTL Loads
Full Parallel Access for Loading
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW), and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
description
These 8-bit latches 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 latches of the ’HC373 are transparent
D-type latches. While the latch-enable (LE) input
is high, the Q outputs follow the data (D) inputs.
When LE is taken low, the Q outputs are latched
at the levels that were set up at the 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 latches. Old data can be retained or new data can be entered
while the outputs are off.
The SN54HC373 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
SN74HC373 is characterized for operation from –40
°
C to 85
°
C.
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.
3
2 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
1
1
O
5
5
V
8
4
G
L
SN54HC373 . . . FK PACKAGE
(TOP VIEW)
SN54HC373 . . . J OR W PACKAGE
SN74HC373 . . . DB, DW, N, OR PW 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
V
CC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
LE
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
SN54HC373W 1-Phase 5-Bit Synchronous Rectification Buck Controller for Computer; Package: SOIC-20 WB; No of Pins: 20; Container: Tape and Reel; Qty per Container: 1000
SN74HC373DB OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS
SN54HC374FK Rail-to-Rail, 1-7V Single Channel Operational Amplifier - Pb-free; Package: TSOP-5 / SOT23-5; No of Pins: 5; Container: Tape and Reel; Qty per Container: 3000
SN74HC374PW Octal Bus Buffer/Line Driver with 3-state Outputs; Package: SOEIAJ-20; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2000
SN54HC374W Rail-to-Rail, 1-7V Dual Channel Operational Amplifier - Pb-free; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
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SN54HC374W 制造商:Texas Instruments 功能描述: