參數(shù)資料
型號(hào)： SN74F373DB
廠商： Texas Instruments, Inc.
元件分類(lèi)： 通用總線(xiàn)功能
英文描述： OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS
中文描述： 有三態(tài)輸出的8個(gè)透明D型鎖存器
文件頁(yè)數(shù)： 1/4頁(yè)
文件大小： 54K
代理商： SN74F373DB
SN54F373, SN74F373
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SDFS076A – D2932, MARCH 1987 – REVISED OCTOBER 1993
Copyright
1993, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Eight Latches in a Single Package
3-State Bus-Driving True Outputs
Full Parallel Access for Loading
Buffered Control Inputs
Package Options Include Plastic
Small-Outline (SOIC) and Shrink
Small-Outline (SSOP) Packages, Ceramic
Chip Carriers, and Plastic and Ceramic
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
′
F373 are transparent
D-type latches. While the latch-enable (LE) input
is high, the Q outputs will follow the data (D) inputs.
When the latch enable is taken low, the Q outputs
are latched at the logic levels set up at the 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) input does not affect the internal operations of the latches. Old data can be retained
or new data can be entered while the outputs are in the high-impedance state.
The SN74F373 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count
and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54F373 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
SN74F373 is characterized for operation from 0
°
C to 70
°
C.
FUNCTION TABLE
(each latch)
INPUTS
OUTPUT
Q
OE
L
LE
H
D
H
H
L
H
L
L
L
L
X
Q0
Z
H
X
X
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
SN54F373 . . . J PACKAGE
SN74F373 . . . DB, DW, OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
2D
2Q
3Q
3D
4D
SN54F373 . . . FK PACKAGE
(TOP VIEW)
1
1
O
5
5
8
4
G
L
V
C
8D
7D
7Q
6Q
6D
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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SN54F373FK OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS
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SN54F374FK OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
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參數(shù)描述
SN74F373DBR 功能描述:閉鎖 Octal DTYPE Transparent 閉鎖 RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類(lèi)型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線(xiàn)路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時(shí)間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel
SN74F373DBRE4 功能描述:閉鎖 Octal DTYPE Transparent 閉鎖 RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類(lèi)型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線(xiàn)路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時(shí)間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel
SN74F373DBRG4 功能描述:閉鎖 Octal DTYPE Transparent 閉鎖 RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類(lèi)型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線(xiàn)路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時(shí)間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel
SN74F373DW 功能描述:閉鎖 Octal Transparent RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類(lèi)型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線(xiàn)路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時(shí)間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel
SN74F373DWG4 功能描述:閉鎖 Octal Transparent RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類(lèi)型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線(xiàn)路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時(shí)間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel
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