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74LCX374
OCTAL D-TYPE FLIP FLOP NON-INVERTING (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS
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5V TOLERANT INPUTS AND OUTPUTS HIGH SPEED: fMAX = 150 MHz (MIN.) 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) = 2.0V to 3.6V (1.5V 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 74LCX374MTR 74LCX374TTR
DESCRIPTION The 74LCX374 is a low voltage 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. It is ideal for low power and high speed 3.3V applications; it can be interfaced to 5V signal environment for both inputs and outputs. These 8 bit D-Type flip-flops are controlled by a clock input (CK) and an output enable input (OE). On the positive transition of the clock, the Q Figure 1: Pin Connection And IEC Logic Symbols
outputs will be set to the logic state 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 flops; that is, the old data can be retained or the new data can be entered even while the outputs are off. It has same speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
September 2004
Rev. 4
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74LCX374
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 Input (LOW to HIGH, edge triggered) Ground (0V) Positive Supply Voltage
Table 3: Truth Table
INPUT 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
Figure 3: Logic Diagram
This logic diagram has not be used to estimate propagation delays
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Table 4: Absolute Maximum Ratings
Symbol VCC VI VO VO IIK IOK IO ICC IGND Tstg TL Supply Voltage DC Input Voltage DC Output Voltage (OFF State) DC Output Voltage (High or Low State) (note 1) DC Input Diode Current DC Output Diode Current (note 2) DC Output Current DC Supply Current per Supply Pin DC Ground Current per Supply Pin Storage Temperature Lead Temperature (10 sec) 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 50 100 100 -65 to +150 300 Unit V V V V mA mA mA mA mA C C
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 Top dt/dv Supply Voltage (note 1) Input Voltage Output Voltage (OFF State) 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 = 2.7V) Operating Temperature Input Rise and Fall Time (note 2) Parameter Value 2.0 to 3.6 0 to 5.5 0 to 5.5 0 to VCC 24 12 -55 to 125 0 to 10 Unit V V V V mA mA C ns/V
1) Truth Table guaranteed: 1.5V to 3.6V 2) VIN from 0.8V to 2V at VCC = 3.0V
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Table 6: DC Specifications
Test Condition Symbol Parameter VCC (V) -40 to 85 C Min. 2.0 2.7 to 3.6 0.8 2.7 to 3.6 2.7 3.0 VOL Low Level Output Voltage 2.7 to 3.6 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 2.7 to 3.6 0 2.7 to 3.6 IO=-100 A IO=-12 mA IO=-18 mA IO=-24 mA IO=100 A IO=12 mA IO=16 mA IO=24 mA VI = 0 to 5.5V VI or VO = 5.5V VI = VIH or VIL VO = 0 to VCC VI = VCC or GND VI or VO= 3.6 to 5.5V VIH = VCC - 0.6V VCC-0.2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 5 10 5 10 10 500 VCC-0.2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 5 10 5 10 10 500 A A A A A V V 0.8 V Max. Value -55 to 125 C Min. 2.0 Max. V Unit
VIH VIL VOH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
ICC ICC
2.7 to 3.6 2.7 to 3.6
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 outputs 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) 2.7 3.0 to 3.6 2.7 3.0 to 3.6 2.7 3.0 to 3.6 2.7 3.0 to 3.6 2.7 3.0 to 3.6 2.7 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6 50 50 50 50 500 500 500 500 2.5 2.5 2.5 2.5 50 500 2.5 50 500 2.5 CL (pF) 50 50 RL () 500 500 ts = tr (ns) 2.5 2.5 -40 to 85 C Min. 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 1.5 1.5 3.3 3.3 150 1.0 Max. 9.5 8.5 9.5 8.5 8.5 7.5 Value -55 to 125 C Min. 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 1.5 1.5 3.3 3.3 140 1.0 ns ns MHz ns ns Max. 9.5 8.5 9.5 8.5 8.5 7.5 ns ns ns Unit
tPLH tPHL tPZL tPZH
Propagation Delay Time Output Enable Time to HIGH and LOW level Output Disable Time from HIGH to LOW level Set-Up Time, HIGH or LOW level (Dn to CK) Hold Time, HIGH or LOW level (Dn to CK) CK Pulse Width, HIGH Clock Pulse Frequency Output To Output Skew Time (note1, 2)
tPLZ tPHZ
tS
th
tW fMAX tOSLH tOSHL
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 4: Capacitive Characteristics
Test Condition Symbol Parameter VCC (V) 3.3 3.3 3.3 VIN = 0 to VCC VIN = 0 to VCC fIN = 10MHz VIN = 0 or VCC Value TA = 25 C Min. Typ. 6 12 32 Max. pF pF pF Unit
CIN COUT CPD
Input Capacitance Output 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/8 (per flip-flop)
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Figure 5: Test Circuit
TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ
CL = 50 pF or equivalent (includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
SWITCH Open 6V GND
Figure 6: Waveform - Propagation Delays, Setup And Hold Times, CK Maximum Frequency (f=1MHz; 50% duty cycle)
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Figure 7: Waveform - Output Enable And Disable Times (f=1MHz; 50% duty cycle)
Figure 8: Waveform - Pulse Width (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 9: Revision History
Date 15-Sep-2004 Revision 4 Description of Changes 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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