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Motorola Semiconductors에서 제조한 전자 부품 MC74AC194은 전자 산업 및 응용 분야에서
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부품번호 MC74AC194 기능
기능 4-Bit Bidirectional Universal Shift Register
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MC74AC194 데이터시트, 핀배열, 회로
www.DataSheet4U.com
4ĆBit Bidirectional
Universal Shift Register
The MC74AC194/74ACT194 is a high-speed 4-bit bidirectional universal shift
register. As a high-speed multifunctional, sequential building block, it is useful in
a wide variety of applications. It may be used in serial-serial, shift left, shift right,
serial-parallel, parallel-serial, and parallel-parallel data register transfers. The
AC/ACT194 is similar in operation to the AS195 universal shift register, with
added features of shift left without external connections and hold (do nothing)
modes of operation.
Typical Shift Frequency of 150 MHz
Asynchronous Master Reset
Hold (Do Nothing) Mode
Fully Synchronous Serial or Parallel Data Transfers
FUNCTIONAL DESCRIPTION
The MC74AC/74ACT194 contains four edge-triggered D flip-flops and the
necessary interstage logic to synchronously perform shift right, shift left, parallel
load and hold operations. Signals applied to the Select (S0, S1) inputs
determine the type of operation, as shown in the Mode Select Table. Signals
on the Select, Parallel data (P0–P3) and Serial data (DSR, DSL) inputs can
change when the clock is in either state, provided only that the recommended
setup and hold times, with respect to the clock rising edge, are observed. A
LOW signal on Master Reset (MR) overrides all other inputs and forces the
outputs LOW.
MODE SELECT TABLE
Operating
Mode
Reset
MR S1
LX
Inputs
S0 DSR
XX
DSL Pn
XX
Outputs
Q0 Q1 Q2 Q3
LLLL
Hold
Hl
l
Shift Left
Hh
Hh
l
l
Shift Right
Hl h
Hl h
Parallel Load H h h
X X X q0 q1 q2 q3
X l X q1 q2 q3 L
X h X q1 q2 q3 H
l X X L q0 q1 q2
h X X H q0 q1 q2
X X pn p0 p1 p2 p3
l = LOW voltage level one setup time prior to the LOW-to-HIGH clock transition.
h = HIGH voltage level one setup time prior to the LOW-to-HIGH clock transition.
Pn (qn) = Lower case letters indicate the state of the referenced input (or output) one setup
time prior to the LOW-to-HIGH clock transition.
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
FACT DATA
5-1
MC74AC194
MC74ACT194
4-BIT BIDIRECTIONAL
UNIVERSAL SHIFT
REGISTER
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
MR 1
16 VCC
DSR 2
15 Q0
P0 3
P1 4
14 Q1
13 Q2
P2 5
12 Q3
P3 6
11 CP
7
DSL
8
GND
10 S1
9 S0
2 34 56 7
9 S0DSR P0 P1 P2 P3 DSL
10 S1
11 CP MR Q0 Q1 Q2 Q3
1 15 14 13 12




MC74AC194 pdf, 반도체, 판매, 대치품
MC74AC194 MC74ACT194
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74AC
Symbol
Parameter
VCC* TA = +25°C
(V) CL = 50 pF
fmax
Maximum Input
Frequency
tPLH
Propagation Delay
CP to Q
tPHL
Propagation Delay
CP to Q
tPHL
Propagation Delay
Reset to Q
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
Min Max
3.3 130
5.0 210
3.3 2.0 14.5
5.0 2.0 12.5
3.3 2.0 14.5
5.0 2.0 12.5
3.3 2.0 11.0
5.0 2.0 9.0
74AC
TA = –40°C
to +85°C
CL = 50 pF
Min Max
115
150
1.5 16.0
1.5 14.0
1.5 16.0
1.5 14.0
1.5 12.0
1.5 10.0
Unit
MHz
ns
ns
ns
Fig.
No.
3-3
3-6
3-6
3-6
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Setup Time,
Pn to Clock
th
Hold Time,
Pn to Clock
ts Setup Time, Sn to CP
th
Hold Time,
Sn to CP
ts
Setup Time,
DSR or DSL to Clock
th
Hold Time,
DSR or DSL to Clock
tw CP Pulse Width
tw MR Pulse Width
trec
Recovery TIme
MR to CP
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
VCC*
(V)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
74AC
74AC
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Guaranteed Minimum
4.0 5.0
2.5 3.5
3.5 4.0
2.0 2.5
5.5 6.5
4.0 5.0
3.5 4.0
2.0 2.5
5.5 6.0
4.0 4.5
1.5 2.0
2.0 2.5
5.5 6.0
4.0 4.5
5.5 6.0
4.0 4.5
1.5 1.5
1.0 1.0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Fig.
No.
3-9
3-9
3-9
3-9
3-9
3-9
3-6
3-9
3-9
FACT DATA
5-4

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MC74AC194 전자부품, 판매, 대치품
–A–
16
1
H
G
MC74AC194 MC74ACT194
OUTLINE DIMENSIONS
9
B
8
N SUFFIX
PLASTIC DIP PACKAGE
CASE 648–08
ISSUE R
FC
S
L
–T–
SEATING
PLANE
KJ
D 16 PL
0.25 (0.010) M T A M
M
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
INCHES
MILLIMETERS
DIM MIN MAX MIN MAX
A 0.740 0.770 18.80 19.55
B 0.250 0.270 6.35 6.85
C 0.145 0.175 3.69 4.44
D 0.015 0.021 0.39 0.53
F 0.040 0.70 1.02 1.77
G 0.100 BSC
2.54 BSC
H 0.050 BSC
1.27 BSC
J 0.008 0.015 0.21 0.38
K 0.110 0.130 2.80 3.30
L 0.295 0.305 7.50 7.74
M 0_ 10_ 0 _ 10 _
S 0.020 0.040 0.51 1.01
–A–
16
1
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B–05
ISSUE J
9
–B– P 8 PL
8 0.25 (0.010) M B S
G
–T– SEATING
PLANE
K
C
D 16 PL
0.25 (0.010) M T B S A S
R X 45_
F
MJ
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 9.80 10.00 0.386 0.393
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019
F 0.40 1.25 0.016 0.049
G 1.27 BSC
0.050 BSC
J 0.19 0.25 0.008 0.009
K 0.10 0.25 0.004 0.009
M 0_ 7_ 0_ 7_
P 5.80 6.20 0.229 0.244
R 0.25 0.50 0.010 0.019
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.
How to reach us:
USA/EUROPE: Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki,
6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315
MFAX: [email protected] –TOUCHTONE (602) 244–6609
INTERNET: http://Design–NET.com
HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
*MC74AC194/D*FACT DATA
5-7
MC74AC194/D

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MC74AC194

4-Bit Bidirectional Universal Shift Register

Motorola Semiconductors
Motorola Semiconductors

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