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74LVC374A
OCTAL D-TYPE FLIP-FLOP HIGH PERFORMANCE
s s s
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5V TOLERANT INPUTS HIGH SPEED: tPD = 6.8ns (MAX.) at VCC = 3V POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) at VCC = 3V PCI BUS LEVELS GUARANTEED AT 24 mA BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 1.65V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 374 LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015); MM > 200V
SOP
TSSOP
Table 1: Order Codes
PACKAGE SOP TSSOP T&R 74LVC374AMTR 74LVC374ATTR
DESCRIPTION The 74LVC374A is an advanced high-speed CMOS OCTAL D-TYPE FLIP FLOP with 3 STATE OUTPUTS NON INVERTING fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. These 8 bit D-Type latch are controlled by a clock input (CK) and an output enable input (OE). On the positive transition of the clock, the Q outputs will be set to the logic state that were setup at the D inputs. Figure 1: Pin Connection And IEC Logic Symbols
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 flops; 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 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. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
July 2004
Rev. 2
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Figure 2: Input And Output Equivalent Circuit
Table 2: Pin Description
PIN N 1 2, 5, 6, 9, 12, 15, 16,19 3, 4, 7, 8, 13, 14, 17, 18 11 10 20 SYMBOL OE Q0 to Q7 D0 to D7 CK GND VCC NAME AND FUNCTION 3 State Output Enable Input (Active LOW) 3-State Outputs Data Inputs Clock Ground (0V) Positive Supply Voltage
Table 3: Truth Table
INPUTS OE H L L L
X : Don't Care Z :High Impedance
OUTPUT D X X L H Q Z NO CHANGE L H
CK X
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Table 4: Absolute Maximum Ratings
Symbol VCC VI VO VO IIK IOK IO Supply Voltage DC Input Voltage DC Output Voltage (VCC = 0V) DC Output Voltage (High or Low State) (note 1) DC Input Diode Current DC Output Diode Current (note 2) DC Output Current Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 50 - 50 50 100 -65 to +150 300 Unit V V V V mA mA mA mA C C
ICC or IGND DC VCC or Ground Current per Supply Pin Storage Temperature Tstg TL Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied 1) IO absolute maximum rating must be observed 2) VO < GND
Table 5: Recommended Operating Conditions
Symbol VCC VI VO VO IOH, IOL IOH, IOL IOH, IOL IOH, IOL Top dt/dv Supply Voltage (note 1) Input Voltage Output Voltage (VCC = 0V) Output Voltage (High or Low State) High or Low Level Output Current (VCC = 3.0 to 3.6V) High or Low Level Output Current (VCC = 2.7 to 3.0V) High or Low Level Output Current (VCC = 2.3 to 2.7V) High or Low Level Output Current (VCC = 1.65 to 2.3V) Operating Temperature Input Rise and Fall Time (note 2) Parameter Value 1.65 to 3.6 0 to 5.5 0 to 5.5 0 to VCC 24 12 8 4 -55 to 125 0 to 10 Unit V V V V mA mA mA mA C ns/V
1) Truth Table guaranteed: 1.2V to 3.6V 2) VI from 0.8V to 2V at VCC = 3.0V
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Table 6: DC Specifications
Test Condition Symbol Parameter VCC (V) 1.65 to 1.95 2.3 to 2.7 2.7 to 3.6 1.65 to 1.95 2.3 to 2.7 2.7 to 3.6 1.65 to 3.6 1.65 2.3 2.7 3.0 3.0 VOL Low Level Output Voltage 1.65 to 3.6 1.65 2.3 2.7 3.0 II Ioff IOZ Input Leakage Current Power Off Leakage Current High Impedance Output Leakage Current Quiescent Supply Current ICC incr. per Input 3.6 0 3.6 IO=-100 A IO=-4 mA IO=-8 mA IO=-12 mA IO=-18 mA IO=-24 mA IO=100 A IO=4 mA IO=8 mA IO=12 mA IO=24 mA VI = 0 to 5.5V VI or VO = 5.5V VI = VIH or VIL VO = 0 to 5.5V VI = VCC or GND 3.6 2.7 to 3.6 VI or VO = 3.6 to 5.5V VIH = VCC-0.6V VCC-0.2 1.2 1.7 2.2 2.4 2.2 0.2 0.45 0.7 0.4 0.55 5 10 10 -40 to 85 C Min. 0.65VCC 1.7 2 0.35VCC 0.7 0.8 VCC-0.2 1.2 1.7 2.2 2.4 2.2 0.2 0.45 0.7 0.4 0.55 5 10 10 A A A V V Max. Value -55 to 125 C Min. 0.65VCC 1.7 2 0.35VCC 0.7 0.8 V V Max. Unit
VIH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
VIL
VOH
ICC
10 10 500
10 10 500 A A
ICC
Table 7: Dynamic Switching Characteristics
Test Condition Symbol Parameter VCC (V) 3.3 CL = 50pF VIL = 0V, VIH = 3.3V Value TA = 25 C Min. Typ. 0.8 -0.8 Max. V Unit
VOLP VOLV
Dynamic Low Level Quiet Output (note 1)
1) Number of output defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is measured in the LOW state.
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Table 8: AC Electrical Characteristics
Test Condition Symbol Parameter VCC (V) CL (pF) 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 RL () 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 ts = t r (ns) 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 -40 to 85 C Min. Max. TBD TBD 7.8 6.8 TBD TBD 7.8 6.8 TBD TBD 8.7 7.7 TBD TBD 7.6 7.0 Value -55 to 125 C Min. Max. TBD TBD 9.4 8.2 TBD TBD 9.4 8.2 TBD TBD 10.4 9.2 TBD TBD 9.1 8.4 Unit
tPLH tPHL
Propagation Delay Time D to Q
tPLH tPHL
tPZL tPZH
tPLZ tPHZ
tW
ts
th
tOSLH tOSHL
1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 Propagation Delay 1.65 to 1.95 Time LE to Q 2.3 to 2.7 2.7 3.0 to 3.6 Output Enable Time 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 Output Disable Time 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 LE Pulse Width 1.65 to 1.95 HIGH 2.3 to 2.7 2.7 3.0 to 3.6 Setup Time D to LE 1.65 to 1.95 (HIGH to LOW) 2.3 to 2.7 2.7 3.0 to 3.6 Hold Time D to 1.65 to 1.95 CLOCK, HIGH or 2.3 to 2.7 LOW 2.7 3.0 to 3.6 Output To Output 2.7 to 3.6 Skew Time (note1, 2)
1.5 1
1.5 1
ns
1.5 1
1.5 1
ns
1 1
1 1
ns
2 2 TBD TBD 3.3 3.3 TBD TBD 2 2 TBD TBD 1.5 1.5
2 2 TBD TBD 3.3 3.3 TDB TBD 2 2 TBD TBD 1.5 1.5
ns
ns
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ns
1
1
ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn| 2) Parameter guaranteed by design
Table 9: Capacitive Characteristics
Test Condition Symbol Parameter VCC (V) Value TA = 25 C Min. fIN = 10MHz Typ. 4 1.8 2.5 3.3 28 30 34 Max. pF pF Unit
CIN CPD
Input Capacitance Power Dissipation Capacitance (note 1)
1) CPD is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/n (per circuit)
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Figure 3: Test Circuit
RT = ZOUT of pulse generator (typically 50)
Table 10: Test Circuit And Waveform Symbol Value
Symbol 1.65 to 1.95V CL RL = R1 VS VIH VM VOH VX VY tr = tr 30pF 1000 2 x VCC VCC VCC/2 VCC VOL + 0.15V VOH - 0.15V <2.0ns 2.3 to 2.7V 30pF 500 2 x VCC VCC VCC/2 VCC VOL + 0.15V VOH - 0.15V <2.0ns VCC 2.7V 50pF 500 6V 2.7V 1.5V 3.0V VOL + 0.3V VOH - 0.3V <2.5ns 3.0 to 3.6V 50pF 500 7V 3.0V 1.5V 3.5V VOL + 0.3V VOH - 0.3V <2.5ns
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Figure 4: Waveform - Propagation Delay, Setup And Hold Times (f=1MHz; 50% duty cycle)
Figure 5: Waveform - Output Enable And Disable Times (f=1MHz; 50% duty cycle)
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Figure 6: Waveform - Propagation Delay Time (f=1MHz; 50% duty cycle)
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SO-20 MECHANICAL DATA
DIM. A A1 B C D E e H h L k ddd 10.00 0.25 0.4 0 mm. MIN. 2.35 0.1 0.33 0.23 12.60 7.4 1.27 10.65 0.75 1.27 8 0.100 0.394 0.010 0.016 0 TYP MAX. 2.65 0.30 0.51 0.32 13.00 7.6 MIN. 0.093 0.004 0.013 0.009 0.496 0.291 0.050 0.419 0.030 0.050 8 0.004 inch TYP. MAX. 0.104 0.012 0.020 0.013 0.512 0.299
0016022D
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TSSOP20 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 6.4 6.2 4.3 6.5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 6.6 6.6 4.48 0.002 0.031 0.007 0.004 0.252 0.244 0.169 0.256 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0079 0.260 0.260 0.176 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0087225C
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Tape & Reel SO-20 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 10.8 13.2 3.1 3.9 11.9 12.8 20.2 60 30.4 11 13.4 3.3 4.1 12.1 0.425 0.520 0.122 0.153 0.468 TYP MAX. 330 13.2 0.504 0.795 2.362 1.197 0.433 0.528 0.130 0.161 0.476 MIN. TYP. MAX. 12.992 0.519 inch
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Tape & Reel TSSOP20 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.8 6.9 1.7 3.9 11.9 12.8 20.2 60 22.4 7 7.1 1.9 4.1 12.1 0.268 0.272 0.067 0.153 0.468 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.276 0.280 0.075 0.161 0.476 MIN. TYP. MAX. 12.992 0.519 inch
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Table 11: Revision History
Date 21-May-2004 26-Jul-2004 Revision 1 2 Description of Changes First Release. Ordering Codes Revision - pag. 1.
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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. Specifications 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 registered trademark of STMicroelectronics All other names are the property of their respective owners (c) 2004 STMicroelectronics - All Rights Reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
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