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부품번호 | 54LS373 기능 |
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기능 | SN54LS373 / DM54LS373 | ||
제조업체 | ETC | ||
로고 | |||
전체 7 페이지수
OCTAL TRANSPARENT LATCH
WITH 3-STATE OUTPUTS;
OCTAL D-TYPE FLIP-FLOP
WITH 3-STATE OUTPUT
The SN54 / 74LS373 consists of eight latches with 3-state outputs for bus
organized system applications. The flip-flops appear transparent to the data
(data changes asynchronously) when Latch Enable (LE) is HIGH. When LE is
LOW, the data that meets the setup times is latched. Data appears on the bus
www.DataSheet4wUh.ceonmthe Output Enable (OE) is LOW. When OE is HIGH the bus output is in
the high impedance state.
The SN54 / 74LS374 is a high-speed, low-power Octal D-type Flip-Flop fea-
turing separate D-type inputs for each flip-flop and 3-state outputs for bus ori-
ented applications. A buffered Clock (CP) and Output Enable (OE) is common
to all flip-flops. The SN54 / 74LS374 is manufactured using advanced Low
Power Schottky technology and is compatible with all Motorola TTL families.
• Eight Latches in a Single Package
• 3-State Outputs for Bus Interfacing
• Hysteresis on Latch Enable
• Edge-Triggered D-Type Inputs
• Buffered Positive Edge-Triggered Clock
• Hysteresis on Clock Input to Improve Noise Margin
• Input Clamp Diodes Limit High Speed Termination Effects
PIN NAMES
D0 – D7
LE
CP
OE
O0 – O7
Data Inputs
Latch Enable (Active HIGH) Input
Clock (Active HIGH going edge) Input
Output Enable (Active LOW) Input
Outputs (Note b)
LOADING (Note a)
HIGH
LOW
0.5 U.L.
0.5 U.L.
0.5 U.L.
0.5 U.L.
65 (25) U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
15 (7.5) U.L.
NOTES:
a) 1 TTL Units Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 7.5 U.L. for Military (54) and 25 U.L. for Commercial
(74) Temperature Ranges. The Output HIGH drive factor is 25 U.L. for Military (54) and
65 U.L. for Commercial (74) Temperature Ranges.
SN54/74LS373
SN54/74LS374
OCTAL TRANSPARENT LATCH
WITH 3-STATE OUTPUTS;
OCTAL D-TYPE FLIP-FLOP
WITH 3-STATE OUTPUT
LOW POWER SCHOTTKY
20
1
20
1
20
1
J SUFFIX
CERAMIC
CASE 732-03
N SUFFIX
PLASTIC
CASE 738-03
DW SUFFIX
SOIC
CASE 751D-03
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXDW SOIC
SN54 / 74LS373
CONNECTION DIAGRAM DIP (TOP VIEW)
SN54 / 74LS374
V CC O 7
20 19
D7 D6 O6 O5 D5 D4 O4
18 17 16 15 14 13
12
LE
11
V CC O 7 D 7 D 6 O 6 O 5 D 5 D 4 O 4 CP
20 19 18 17 16 15 14 13
12 11
12 3 4 56
7 8 9 10
OE O 0 D 0 D 1 O 1 O 2 D 2 D 3 O 3 GND
NOTE:
12 3 4 56
7 8 9 10
The Flatpak version
has the same pinouts
OE O 0 D 0 D 1 O 1 O 2 D 2 D 3 O 3 GND
(Connection Diagram) as
the Dual In-Line Package.
FAST AND LS TTL DATA
5-521
SN54 / 74LS373
www.DataSheet4U.com
AC WAVEFORMS
tW tW
LE 1.3 V
Dn
OUTPUT
ts th
t PLH
Figure 1
t PHL
OE
t PZL
V OUT
1.3 V
1.3 V
Figure 2
1.3 V
0.5 V
t PLZ
1.3 V
V OL
OE
t PZH
V OUT
1.3 V
t PHZ
1.3 V
Figure 3
1.3 V
V OH
1.3 V
0.5 V
TO OUTPUT
UNDER TEST
V CC
RL
SW1
AC LOAD CIRCUIT
Ω5.0 k
CL*
SW2
SWITCH POSITIONS
SYMBOL
SW1
SW2
tPZH
tPZL
tPLZ
tPHZ
Open
Closed
Closed
Closed
Closed
Open
Closed
Closed
* Includes Jig and Probe Capacitance.
Figure 4
FAST AND LS TTL DATA
5-524
4페이지 www.DataSheet4U.com
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
Literature Distribution Centers:
SYMBOL
SW1
SW2
USA: Motorola Literature
EUROPE: Motorola Ltd.;
Distribution; P.O. Box 20912; Phoenix, Arizona
European Literature Centre; 88 Tanners Drive,
85036.
Blakelands,
Milton
Keynes,
MK14
5tBPPZ, HEngland.
Open
Closed
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan.
tPZL
Closed
Open
ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.
tPLZ
Closed
Closed
tPHZ
Closed
Closed
◊ FAST AND LS TTL DATA
5-527
7페이지 | |||
구 성 | 총 7 페이지수 | ||
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
54LS373 | SN54LS373 / DM54LS373 | ETC |
54LS374 | DM54LS374 | National Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |