74VHC14
HEX SCHMITT inverter
Features
■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
High speed: tPD = 5.5ns (typ.) at VCC = 5V Low power dissipation: ICC = 2 µA (Max.) at TA = 25°C Typical hysteresis: Vh = 1V at VCC = 4.5V Power down protection on inputs Symmetrical output impedance: |IOH| = IOL = 8 mA (Min) Balanced propagation delays: tPLH ≅ tPHL Operating voltage range: VCC(Opr) = 2V to 5.5V Pin and function compatible with 74 series 14 Improved latch-up immunity Low noise: VOLP = 0.8V (Max.)
SO-14 TSSOP14
Description
The 74VHC14 is an advanced high-speed CMOS HEX SCHMITT inverter fabricated with submicron silicon gate and double-layer metal wiring C2MOS technology. The internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output. 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. Pin configuration and function are the same as those of the 74VHC04 but the 74VHC14 has hysteresis. This together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
Table 1. Device summary
Part number 74VHC14MTR 74VHC14TTR Package SO-14 TSSOP14 Packaging Tape and reel Tape and reel
May 2007
Rev 7
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Contents
74VHC14
Contents
1 2 Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 2.2 2.3 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 5 6 7 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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74VHC14
Logic symbols and I/O equivalent circuit
1
Logic symbols and I/O equivalent circuit
Figure 1. IEC logic symbols
Figure 2.
Input and output equivalent circuit
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Pin settings
74VHC14
2
2.1
Pin settings
Pin connection
Figure 3. Pin connection (top through view)
2.2
Pin description
Table 1. Pin description
Pin N° 1, 3, 5, 9, 11, 13 2, 4, 6, 8, 10, 12 7 14 Symbol 1A to 6A 1Y to 6Y GND VCC Data inputs Data outputs Ground (0V) Positive supply voltage Name and function
2.3
Truth table
Table 2. Truth table
Inputs A L H Output Y H L
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74VHC14
Maximum rating
3
Maximum rating
stressing the device above the rating listed in the “absolute maximum ratings” table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. refer also to the STMicroelectronics sure program and other relevant quality documents. Table 3. Absolute maximum ratings
Symbol VCC VI VO IIK IOK IO ICC IGND Tstg TL Supply voltage DC input voltage DC output voltage DC input diode current DC output diode current 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 VCC + 0.5 - 20 ± 20 ± 25 ± 50 ± 50 -65 to +150 300 Unit V V V mA mA mA mA mA °C °C
3.1
Recommended operating conditions
Table 4. Recommended operating conditions
Symbol VCC VI VO Top Supply voltage Input voltage Output voltage Operating temperature Parameter Value 2 to 5.5 0 to 5.5 0 to VCC -55 to 125 Unit V V V °C
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Electrical characteristics
74VHC14
4
Electrical characteristics
Table 5. DC specifications
Test condition Symbol Parameter VCC (V) 3.0 Vt+ High level threshold voltage 4.5 5.5 3.0 VtLow level threshold voltage 4.5 5.5 3.0 Vh Hysteresis voltage 4.5 5.5 2.0 3.0 VOH High level output voltage 4.5 3.0 4.5 2.0 3.0 VOL Low level output voltage 4.5 3.0 4.5 II ICC Input leakage current Quiescent supply current 0 to 5.5 5.5 IO=-50 µA IO=-50 µA IO=-50 µA IO=-4 mA IO=-8 mA IO=50 µA IO=50 µA IO=50 µA IO=4 mA IO=8 mA VI = 5.5V or GND VI = VCC or GND 0.9 1.35 1.65 0.3 0.4 0.5 1.9 2.9 4.4 2.58 3.94 0.0 0.0 0.0 0.1 0.1 0.1 0.36 0.36 ± 0.1 2 2.0 3.0 4.5 1.2 1.4 1.6 TA = 25°C Min. Typ. Max. 2.2 3.15 3.85 0.9 1.35 1.65 0.3 0.4 0.5 1.9 2.9 4.4 2.48 3.8 0.1 0.1 0.1 0.44 0.44 ±1 20 1.2 1.4 1.6 Value -40 to 85°C Min. Max. 2.2 3.15 3.85 0.9 1.35 1.65 0.3 0.4 0.5 1.9 2.9 4.4 2.4 3.7 0.1 0.1 0.1 0.55 0.55 ±1 20 µA µA V V 1.2 1.4 1.6 V V -55 to 125°C Min. Max. 2.2 3.15 3.85 V Unit
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74VHC14
Electrical characteristics
Table 6. AC electrical characteristics (Input tr = tf = 3ns)
Test condition Symbol Parameter VCC (V) 3.3(1) tPLH tPHL Propagation delay time 3.3(1) 5.0(2) 5.0(2)
1. Voltage range is 3.3V ± 0.3V 2. Voltage range is 5.0V ± 0.5V
Value TA = 25°C Min. Typ. 8.3 10.8 5.5 7.0 Max. 12.8 16.3 8.6 10.6 -40 to 85°C Min. 1.0 1.0 1.0 1.0 Max. 15.0 18.5 10.0 12.0 -55 to 125°C Min. 1.0 1.0 1.0 1.0 Max. 15.0 18.5 ns 10.0 12.0 Unit
CL (pF) 15 50 15 50
Table 7. Capacitive characteristics
Test condition Symbol Parameter TA = 25°C Min. CIN CPD Input capacitance Power dissipation capacitance (1) Typ. 6 14 Max. 10 Value -40 to 85°C Min. Max. 10 -55 to 125°C Min. Max. 10 pF pF Unit
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/6 (per gate)
Table 8. Dynamic switching characteristics
Test condition Symbol Parameter VCC (V) TA = 25°C Min. Typ. 0.3 5.0 -0.8 5.0 5.0 CL = 50 pF 3.5 1.5 -0.3 V V Max. 0.8 V Value -40 to 85°C Min. Max. -55 to 125°C Min. Max. Unit
VOLP VOLV VIHD VILD
Dynamic low voltage quiet output (1) (2) Dynamic high voltage input (1) (3) Dynamic low voltage input (1) (3)
1. Worst case package. 2. Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n-1) outputs switching and one output at GND. 3. Max number of data inputs (n) switching. (n-1) switching 0V to 5.0V. Inputs under test switching: 5.0V to threshold (VILD), 0V to threshold (VIHD), f = 1MHz.
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Test circuit
74VHC14
5
Test circuit
Figure 4. Test circuit
CL = 15/50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω)
6
Waveforms
Figure 5. Waveform - propagation delay (f = 1MHz; 50% duty cycle)
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74VHC14
Package mechanical data
7
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com
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Package mechanical data
74VHC14
SO-14 MECHANICAL DATA
DIM. A A1 A2 B C D E e H h L k ddd 5.8 0.25 0.4 0° mm. MIN. 1.35 0.1 1.10 0.33 0.19 8.55 3.8 1.27 6.2 0.50 1.27 8° 0.100 0.228 0.010 0.016 0° TYP MAX. 1.75 0.25 1.65 0.51 0.25 8.75 4.0 MIN. 0.053 0.004 0.043 0.013 0.007 0.337 0.150 0.050 0.244 0.020 0.050 8° 0.004 inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.344 0.157
0016019D
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74VHC14
Package mechanical data
TSSOP14 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 4.9 6.2 4.3 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 5.1 6.6 4.48 0.002 0.031 0.007 0.004 0.193 0.244 0.169 0.197 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 0.0089 0.201 0.260 0.176 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0080337D
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Package mechanical data
74VHC14
Tape & Reel SO-14 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.4 9 2.1 3.9 7.9 12.8 20.2 60 22.4 6.6 9.2 2.3 4.1 8.1 0.252 0.354 0.082 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.260 0.362 0.090 0.161 0.319 MIN. TYP. MAX. 12.992 0.519 inch
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74VHC14
Package mechanical data
Tape & Reel TSSOP14 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.7 5.3 1.6 3.9 7.9 12.8 20.2 60 22.4 6.9 5.5 1.8 4.1 8.1 0.264 0.209 0.063 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.272 0.217 0.071 0.161 0.319 MIN. TYP. MAX. 12.992 0.519 inch
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Revision history
74VHC14
8
Revision history
Table 9. Revision history
Date 12-Nov-2004 03-May-2007 Revision 6 7 Changes Ordering codes revision - pag. 1. Document reformatted, updated Table 5 on page 6
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74VHC14
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