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MC74VHCT74A 데이터시트 PDF




Motorola Semiconductors에서 제조한 전자 부품 MC74VHCT74A은 전자 산업 및 응용 분야에서
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부품번호 MC74VHCT74A 기능
기능 Dual D-Type Flip-Flop with Set and Reset
제조업체 Motorola Semiconductors
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MC74VHCT74A 데이터시트, 핀배열, 회로
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Dual D-Type Flip-Flop
with Set and Reset
The MC74VHCT74A is an advanced high speed CMOS D–type flip–flop
fabricated with silicon gate CMOS technology. It achieves high speed
operation similar to equivalent Bipolar Schottky TTL while maintaining
CMOS low power dissipation.
The signal level applied to the D input is transferred to Q output during the
positive going transition of the Clock pulse.
Reset (RD) and Set (SD) are independent of the Clock (CP) and are
accomplished by setting the appropriate input Low.
The internal circuit is composed of three stages, including a buffer output
which provides high noise immunity and stable output. The inputs tolerate
voltages up to 7V, allowing the interface of 5V systems to 3V systems.
The VHCT inputs are compatible with TTL levels. This device can be used
as a level converter for interfacing 3.3V to 5.0V, because it has full 5V CMOS
level output swings.
The VHCT74A input structures provide protection when voltages between
0V and 5.5V are applied, regardless of the supply voltage. The output
structures also provide protection when VCC=0V. These input and output
structures help prevent device destruction caused by supply voltage –
input/output voltage mismatch, battery backup, hot insertion, etc.
High Speed: fmax = 60MHz (Typ) at VCC = 5V
Low Power Dissipation: ICC = 2µA (Max) at TA = 25°C
Power Down Protection Provided on Inputs
Balanced Propagation Delays
Designed for 4.5V to 5.5V Operating Range
Low Noise: VOLP = 0.8V (Max)
Pin and Function Compatible with Other Standard Logic Families
Latchup Performance Exceeds 300mA
ESD Performance: HBM > 2000V; Machine Model > 200V
Chip Complexity: 128 FETs or 32 Equivalent Gates
RD1 1
D1 2
3
CP1
SD1 4
LOGIC DIAGRAM
13
RD2
5
Q1
D2 12
6
Q1
11
CP2
10
SD2
9
Q2
8
Q2
FUNCTION TABLE
Inputs
Outputs
SD RD CP D Q Q
LH
HL
LL
HH
HH
HH
HH
HH
XX
HL
XX
LH
X X H* H*
H HL
L LH
L X No Change
H X No Change
X No Change
* Both outputs will remain high as long as Set and Reset are low, but the output
states are unpredictable if Set and Reset go high simultaneously.
3/98
© Motorola, Inc. 1998
1
MC74VHCT74A
D SUFFIX
14–LEAD SOIC PACKAGE
CASE 751A–03
DT SUFFIX
14–LEAD TSSOP PACKAGE
CASE 948G–01
M SUFFIX
14–LEAD SOIC EIAJ PACKAGE
CASE 965–01
ORDERING INFORMATION
MC74VHCTXXAD
MC74VHCTXXADT
MC74VHCTXXAM
SOIC
TSSOP
SOIC EIAJ
PIN ASSIGNMENT
RD1 1
D1 2
CP1 3
SD1 4
Q1 5
Q1 6
GND 7
14 VCC
13 RD2
12 D2
11 CP2
10 SD2
9 Q2
8 Q2
REV 0




MC74VHCT74A pdf, 반도체, 판매, 대치품
MC74VHCT74A
CP 1.5V
1.5V
Q or Q
tw
1/fmax
tPLH
tPHL
Figure 1.
VALID
D 1.5V
tsu th
1.5V
CP
Figure 3.
SWITCHING WAVEFORMS
SD or RD
tw
1.5V
3V tPHL
GND
Q or Q
1.5V VCC
tPLH
Q or Q
1.5V VCC
VOH
VOL
CP
trec
1.5V
Figure 2.
3V
GND
3V
GND
3V
GND
TEST POINT
OUTPUT
3V DEVICE
UNDER
GND
TEST
CL*
3V
GND * Includes all probe and jig capacitance
Figure 4.
INPUT
Figure 5. Input Equivalent Circuit
MOTOROLA
4 VHC Data – Advanced CMOS Logic
DL203 — Rev 2

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