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74VHCT574AM [STMICROELECTRONICS]

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING; 八路D型触发器具有三态输出的非反相FLOP
74VHCT574AM
型号： 74VHCT574AM
厂家： ST    ST
描述：

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING
八路D型触发器具有三态输出的非反相FLOP

总线驱动器 总线收发器 触发器 逻辑集成电路 光电二极管 输出元件
文件： 总10页 (文件大小：75K)
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74VHCT574A  
OCTAL D-TYPE FLIP FLOP  
WITH 3 STATE OUTPUT NON INVERTING  
■
■
■
■
■
■
■
■
HIGH SPEED:  
fMAX =180MHz(TYP.) at VCC =5V  
LOW POWER DISSIPATION:  
ICC =4 µA (MAX.) at TA =25 oC  
COMPATIBLEWITH TTL OUTPUTS:  
VIH =2V (MIN), VIL = 0.8V(MAX)  
POWERDOWN PROTECTIONON INPUTS&  
OUTPUTS  
SYMMETRICAL OUTPUT IMPEDANCE:  
|IOH| = IOL = 8 mA (MIN)  
BALANCEDPROPAGATIONDELAYS:  
M
T
(Micro Package)  
(TSSOPPackage)  
ORDER CODES :  
74VHCT574AM  
74VHCT574AT  
outputs will be set to logic states that were setup  
at the D inputs.  
While the OE input is low, the 8 outputs will be in  
a normal logic state (high or low logic level) and,  
while high level, the outputs will be in a high  
impedance state.  
The output control does not affect the internal  
operation of flip flop; that is, the old data can be  
retained or the new data can be entered even  
while the outputs are off.  
Power down protection is provided on all inputs  
and outputs and 0 to 7V can be accepted on  
inputs with no regard to the supply voltage. This  
device can be used to interface 5V to 3V.  
tPLH tPHL  
OPERATING VOLTAGERANGE:  
VCC (OPR)= 4.5V to 5.5V  
PIN AND FUNCTION COMPATIBLEWITH  
74 SERIES574  
IMPROVED LATCH-UP IMMUNITY  
■
■
LOWNOISEVOLP = 0.9V(Max.)  
DESCRIPTION  
The 74VHCT574A is an advanced high-speed  
CMOS OCTAL D-TYPE FLIP FLOP with 3  
STATE OUTPUT NON INVERTING fabricated  
with sub-micron silicon gate and double-layer  
metal wiring C2MOS technology.  
This 8 bit D-Type flip-flop is controlled by a clock  
input (CK) and an output enable input (OE).  
On the positive transition of the clock, the Q  
All inputs and outputs are equipped with  
protection circuits against static discharge, giving  
them 2KV ESD immunity and transient excess  
voltage.  
PIN CONNECTION AND IEC LOGIC SYMBOLS  
1/10  
August 1999  
74VHCT574A  
INPUT EQUIVALENT CIRCUIT  
PIN DESCRIPTION  
PIN No  
SYMBOL NAME AND FUNCTION  
1
OE  
3 State Output Enable  
Input (Active LOW)  
2, 3, 4,  
5, 6, 7,  
8, 9  
D0 to D7 Data Inputs  
12, 13, 14,  
15, 16, 17,  
18, 19  
Q0 to Q7 3 State Outputs  
11  
CLOCK  
Clock Input (LOW to  
HIGH, edge triggered)  
10  
20  
GND  
VCC  
Ground (0V)  
Positive Supply Voltage  
TRUTH TABLE  
INPUTS  
OUTPUTS  
OE  
H
CK  
D
X
X
L
Q
X
Z
L
NO CHANGE  
L
L
L
X:Don’t Care  
H
H
Z: High Impedance  
LOGIC DIAGRAM  
2/10  
74VHCT574A  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
VCC  
VI  
Parameter  
Value  
-0.5 to +7.0  
-0.5 to +7.0  
-0.5 to +7.0  
-0.5 to VCC + 0.5  
- 20  
Unit  
V
Supply Voltage  
DC Input Voltage  
V
VO  
DC Output Voltage (see note 1)  
DC Output Voltage (see note 2)  
DC Input Diode Current  
DC Output Diode Current  
DC Output Current  
V
VO  
V
IIK  
mA  
mA  
mA  
mA  
oC  
oC  
IOK  
20  
25  
±
±
IO  
ICC or IGND DC VCC or Ground Current  
± 50  
-65 to +150  
300  
Tstg  
Storage Temperature  
TL  
Lead Temperature (10 sec)  
AbsoluteMaximum Ratingsarethose values beyond whichdamage tothe device may occur. Functional operation under these condition isnot implied.  
1)Outputin OFFState  
2)High or Low State  
RECOMMENDED OPERATING CONDITIONS  
Symbol  
VCC  
VI  
Parameter  
Value  
4.5 to 5.5  
0 to 5.5  
Unit  
V
Supply Voltage  
Input Voltage  
V
VO  
Output Voltage (see note 1)  
Output Voltage (see note 2)  
Operating Temperature  
0 to 5.5  
V
VO  
0 to VCC  
-40 to +85  
0 to 20  
V
oC  
Top  
dt/dv  
ns/V  
Input Rise and Fall Time (see note 3) (VCC = 5.0 0.5V)  
±
1)Outputin OFFState  
2)High or Low State  
3)VIN from0.8Vto2 V  
3/10  
74VHCT574A  
DC SPECIFICATIONS  
Symbol  
Parameter  
Test Conditions  
VCC  
(V)  
Value  
TA = 25 oC  
Min. Typ. Max. Min. Max.  
Unit  
-40 to 85 oC  
VIH  
VIL  
High Level Input  
Voltage  
4.5 to 5.5  
2
2
V
V
Low Level Input  
Voltage  
4.5 to 5.5  
0.8  
0.8  
VOH  
High Level Output  
Voltage  
4.5  
4.5  
IO=-50 µA  
4.4  
4.5  
0.0  
4.4  
3.8  
V
IO=-8 mA  
3.94  
VOL  
Low Level Output  
Voltage  
4.5  
IO=50  
A
0.1  
0.36  
±0.25  
0.1  
µ
V
4.5  
IO=8 mA  
0.44  
±2.5  
IOZ  
High Impedance  
Output Leakage  
Current  
4.5 to 5.5  
VI = VIH or VIL  
VO = 0V to 5.5V  
µA  
II  
Input Leakage Current  
0 to 5.5  
5.5  
VI = 5.5V or GND  
VI = VCC or GND  
±0.1  
±1.0  
µA  
µA  
ICC  
Quiescent Supply  
Current  
4
40  
∆ICC  
Additional Worst Case  
Supply Current  
5.5  
0
One Input at 3.4V,  
other input at VCC or  
GND  
1.35  
0.5  
1.5  
5.0  
mA  
IOPD  
Output Leakage  
Current  
VOUT = 5.5V  
µA  
AC ELECTRICAL CHARACTERISTICS  
(Input tr = tf =3 ns)  
Symbol  
Parameter  
Test Condition  
Value  
TA = 25 oC  
Unit  
VCC  
CL  
-40 to 85 oC  
(pF)  
(V)  
Min. Typ. Max. Min. Max.  
tPLH  
tPHL  
Propagation Delay  
Time CK to Q  
5.0(*)  
5.0(*)  
5.0(*)  
5.0(*)  
5.0(*)  
15  
50  
4.1  
5.6  
6.5  
7.3  
7.0  
9.4  
1.0  
1.0  
1.0  
1.0  
1.0  
10.5  
11.5  
11.5  
12.5  
12.0  
ns  
10.4  
10.2  
11.2  
11.2  
tPZL  
tPZH  
Output EnableTime  
15  
50  
50  
R =1K  
Ω
Ω
L
ns  
ns  
tPLZ  
tPHZ  
Output Disable Time  
R =1K  
L
fMAX  
Maximum Clock  
Frequency  
5.0(*)  
5.0(*)  
5.0(*)  
15  
50  
50  
90  
85  
140  
130  
80  
MHz  
ns  
tOSLH Output to Output Skew  
tOSHL  
1.5  
1.5  
Time (note 1)  
(*) Voltagerange is5V ± 0.5V  
Note1:Parameter guaranteed bydesign. tsoLH =|tpLHm-tpLHn|,tsoHL =|tpHLm -tpHLn  
|
4/10  
74VHCT574A  
CAPACITIVE CHARACTERISTICS  
Symbol  
Parameter  
Test Conditions  
Value  
TA = 25 oC  
Min. Typ. Max. Min. Max.  
Unit  
-40 to 85 oC  
CIN  
Input Capacitance  
4
9
10  
10  
pF  
pF  
pF  
COUT Output Capacitance  
CPD  
Power Dissipation  
25  
Capacitance (note 1)  
1)CPD isdefined as thevalue ofthe IC’sinternal equivalent capacitance whichiscalculated fromthe operating current consumption without load. (Referto  
TestCircuit).Average operating current can beobtained bythe followingequation. ICC(opr)= CPD • VCC • fIN + ICC/8(per Flip-Flop)  
DYNAMIC SWITCHING CHARACTERISTICS  
Symbol  
Parameter  
Test Conditions  
VCC  
(V)  
Value  
TA = 25 oC  
Min. Typ. Max. Min. Max.  
Unit  
-40 to 85 oC  
VOLP Dynamic Low Voltage  
5.0  
1.2  
1.6  
Quiet Output (note 1, 2)  
VOLV  
-1.6  
3.5  
-1.2  
VIHD  
VILD  
Dynamic High Voltage  
Input (note 1, 3)  
5.0  
5.0  
CL = 50 pF  
V
Dynamic Low Voltage  
Input (note 1, 3)  
1.5  
1)Worstcase package.  
2)Max number ofoutputs defined as (n). Datainputs aredriven 0Vto5.0V, (n -1)outputs switching andone outputatGND.  
3)Max number ofdatainputs (n)switching.(n-1)switching 0Vto5.0V. Inputsunder testswitching: 5.0Vtothreshold (VILD),0V tothreshold (VIHD),f=1MHz.  
5/10  
74VHCT574A  
TEST CIRCUIT  
TEST  
SWITCH  
Open  
VCC  
tPLH, tPHL  
tPZL, tPLZ  
tPZH, tPHZ  
GND  
CL =15/50 pF orequivalent (includes jig and probe capacitance)  
RL =R1 =1KΩ or equivalent  
RT =ZOUT ofpulse generator (typically50Ω)  
WAVEFORM 1: PROPAGATION DELAYS, SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle)  
6/10  
74VHCT574A  
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIMES  
(f=1MHz; 50% duty cycle)  
WAVEFORM 3: PULSE WIDTH  
7/10  
74VHCT574A  
SO-20 MECHANICAL DATA  
mm  
inch  
TYP.  
DIM.  
MIN.  
TYP.  
MAX.  
2.65  
0.20  
2.45  
0.49  
0.32  
MIN.  
MAX.  
0.104  
0.007  
0.096  
0.019  
0.012  
A
a1  
a2  
b
0.10  
0.004  
0.35  
0.23  
0.013  
0.009  
b1  
C
0.50  
0.020  
c1  
D
45 (typ.)  
12.60  
10.00  
13.00  
10.65  
0.496  
0.393  
0.512  
0.419  
E
e
1.27  
0.050  
0.450  
e3  
F
11.43  
7.40  
0.50  
7.60  
1.27  
0.75  
0.291  
0.19  
0.299  
0.050  
0.029  
L
M
S
8 (max.)  
P013L  
8/10  
74VHCT574A  
TSSOP20 MECHANICAL DATA  
mm  
inch  
TYP.  
DIM.  
MIN.  
TYP.  
MAX.  
1.1  
MIN.  
MAX.  
0.433  
0.006  
0.374  
0.0118  
0.0079  
0.260  
0.256  
0.176  
A
A1  
A2  
b
0.05  
0.85  
0.19  
0.09  
6.4  
0.10  
0.9  
0.15  
0.95  
0.30  
0.2  
0.002  
0.335  
0.0075  
0.0035  
0.252  
0.246  
0.169  
0.004  
0.354  
c
D
6.5  
6.4  
6.6  
0.256  
0.252  
E
6.25  
4.3  
6.5  
E1  
e
4.4  
4.48  
0.173  
0.65 BSC  
4o  
0.0256 BSC  
4o  
K
0o  
8o  
0o  
8o  
L
0.50  
0.60  
0.70  
0.020  
0.024  
0.028  
A2  
A
K
L
b
e
A1  
E
c
D
E1  
PIN 1 IDENTIFICATION  
1
9/10  
74VHCT574A  
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences  
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is  
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are  
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products  
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.  
The ST logo is a trademark of STMicroelectronics  
1999 STMicroelectronics – Printed in Italy – All Rights Reserved  
STMicroelectronics GROUP OF COMPANIES  
Australia - Brazil - Canada - China -France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands -  
Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.  
http://www.st.com  
.
10/10  

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