參數(shù)資料
型號: SN74LS298D
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: QUAD 2-INPUT MULTIPLEXER WITH STORAGE
中文描述: LS SERIES, NEGATIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO16
封裝: SOIC-16
文件頁數(shù): 1/6頁
文件大?。?/td> 187K
代理商: SN74LS298D
5-473
FAST AND LS TTL DATA
QUAD 2-INPUT MULTIPLEXER
WITH STORAGE
The SN54/74LS298 is a Quad 2-Port Register. It is the logical equivalent of
a quad 2-input multiplexer followed by a quad 4-bit edge-triggered register. A
Common Select input selects between two 4-bit input ports (data sources.)
The selected data is transferred to the output register synchronous with the
HIGH to LOW transition of the Clock input.
The LS298 is fabricated with the Schottky barrier process for high speed
and is completely compatible with all Motorola TTL families.
Select From Two Data Sources
Fully Edge-Triggered Operation
Typical Power Dissipation of 65 mW
Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP
(TOP VIEW)
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
PIN NAMES
LOADING
(Note a)
HIGH
LOW
S
CP
I0a–I0d
I1a–I1d
Qa–Qd
Common Select Input
Clock (Active LOW Going Edge) Input
Data Inputs From Source 0
Data Inputs From Source 1
Register Outputs (Note b)
0.5 U.L.
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
μ
A HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial
(74) Temperature Ranges.
SN54/74LS298
QUAD 2-INPUT MULTIPLEXER
WITH STORAGE
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
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