Datasheet

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This is information on a product in full production.

October 2012 Doc ID 5741 Rev 9 1/16

74VHC14

Hex Schmitt inverter

Datasheet −

production data

Features

■ High speed: t

= 5.5 ns (typ.) at V

= 5 V

■ Low power dissipation

–I

= 2 μA (max.) at T

= 25 °C

■ Typical hysteresis: V

= 1 V at V

= 4.5 V

■ Power-down protection on inputs

– Symmetrical output impedance

| = I

= 8 mA (min.)

■ Balanced propagation delay: t

PLH

≅ t

PHL

■ Operating voltage range

–V

(opr.) = 2 V to 5.5 V

■ Pin and function compatible with 74 series 14

■ Improved latch-up immunity

■ Low noise

–V

OLP

= 0.8 V (max.)

■ ESD performance

– HBM: 2000 V

– MM: 200 V

– CDM: 1000 V

Applications

■ Automotive

■ Industrial

■ Computer

■ Consumer

Description

The 74VHC14 device is an advanced high-speed

CMOS hex Schmitt inverter manufactured with

sub-micron silicon gate and double-layer metal

wiring C

MOS technology. The internal circuit is

composed of 3 stages including a buffer output,

which provides high noise immunity and stable

output.

Power-down protection is provided on all inputs

and 0 to 7 V can be accepted on inputs

regardless of the supply voltage. This device can

be used to interface from 5 V to 3 V.

Pin configuration and function are the same as

those of the 74VHC04 device but the 74VHC14

device has hysteresis.

This along with its Schmitt trigger function allows

the device 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 2 kV ESD immunity and transient excess

voltage.

SO-14TSSOP14

Table 1. Device summary

Order code Temperature range Package Packaging Marking

74VHC14TTR -55/+125 °C TSSOP14 Tape and reel VHC14

74VHC14YTTR

(1)

-40/+125 °C TSSOP14 (automotive grade) Tape and reel VHC14Y

74VHC14MTR -55/+125 °C SO-14 Tape and reel 74VHC14

74VHC14YMTR

(1)

-40/+125 °C SO-14 (automotive grade) Tape and reel 74VHC14Y

1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC

Q001 and Q002 or equivalent.

www.st.com

Summary of content (16 pages)

PAGE 1
74VHC14 Hex Schmitt inverter Datasheet − production data Features ■ High speed: tPD = 5.5 ns (typ.) at VCC = 5 V ■ Low power dissipation – ICC = 2 μA (max.) at TA = 25 °C ■ Typical hysteresis: Vh = 1 V at VCC = 4.5 V ■ Power-down protection on inputs – Symmetrical output impedance |IOH| = IOL = 8 mA (min.) TSSOP14 Description ■ Balanced propagation delay: tPLH ≅ tPHL ■ Operating voltage range – VCC (opr.) = 2 V to 5.
PAGE 2
Contents 74VHC14 Contents 1 Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 2.1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 Truth table . . . . . . . . . . . .
PAGE 3
74VHC14 1 Logic symbols and I/O equivalent circuit Logic symbols and I/O equivalent circuit Figure 1. IEC logic symbols Figure 2.
PAGE 4
Pin settings 74VHC14 2 Pin settings 2.1 Pin connections Figure 3. 2.2 Pin connections (top through view) Pin description Table 2. 2.3 Pin number Symbol 1, 3, 5, 9, 11, 13 1A to 6A Data inputs 2, 4, 6, 8, 10, 12 1Y to 6Y Data outputs 7 GND Ground (0 V) 14 VCC Positive supply voltage Name and function Truth table Table 3.
PAGE 5
74VHC14 3 Maximum ratings Maximum ratings Stressing the device above the rating listed in Table 4: Absolute maximum ratings 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 Table 5: Recommended operating conditions of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 4.
PAGE 6
Electrical characteristics 74VHC14 4 Electrical characteristics Table 6. DC specifications Test condition Symbol Vt+ Vt- Vh VOH VOL II ICC 6/16 Parameter High level threshold voltage Low level threshold voltage Hysteresis voltage Value TA = 25°C VCC (V) Min. Typ. -40 to 85 °C -55 to 125 °C Unit Max. Min. Max. Min. Max. 3.0 2.2 2.2 2.2 4.5 3.15 3.15 3.15 5.5 3.85 3.85 3.85 3.0 0.9 0.9 0.9 4.5 1.35 1.35 1.35 5.5 1.65 1.65 1.65 3.0 0.3 1.2 0.3 1.2 0.
PAGE 7
4VHC14 Table 7. Electrical characteristics AC electrical characteristics (input tr = tf = 3 ns) Test condition Symbol tPLH tPHL Parameter Propagation delay time VCC (V) CL (pF) 3.3(1) Value TA = 25 °C Min. -40 to 85 °C -55 to 125 °C Typ. Max. Min. Max. Min. Max. 15 8.3 12.8 1.0 15.0 1.0 15.0 3.3(1) 50 10.8 16.3 1.0 18.5 1.0 18.5 5.0(2) 15 5.5 8.6 1.0 10.0 1.0 10.0 5.0(2) 50 7.0 10.6 1.0 12.0 1.0 12.0 Unit ns 1. Voltage range is 3.3 V ± 0.3 V. 2.
PAGE 8
Test circuit 5 74VHC14 Test circuit Figure 4. Note: Test circuit CL = 15/50 pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50 Ω ).
PAGE 9
74VHC14 6 Waveform Waveform Figure 5.
PAGE 10
Package information 7 74VHC14 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark.
PAGE 11
74VHC14 Package information Figure 6. SO-14 package outline Table 10. SO-14 package mechanical data Dimensions Symbol mm Min. Typ. inch Max. Min. Typ. Max. A 1.35 1.75 0.053 0.069 A1 0.1 0.25 0.004 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 8.55 8.75 0.337 0.344 E 3.8 4.0 0.150 0.157 e 1.27 0.050 H 5.8 6.2 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.4 1.27 0.016 0.050 k 0° 8° 0° 8° ddd 0.
PAGE 12
Package information 74VHC14 Figure 7. TSSOP14 package outline Table 11. TSSOP14 package mechanical data Dimensions Symbol mm Min. Typ. A Max. Min. Typ. 1.2 A1 0.05 A2 0.8 b Max. 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 12/16 inch 1 0.65 BSC K 0° L 0.45 0.60 0.0256 BSC 8° 0° 0.75 0.
PAGE 13
74VHC14 Package information Figure 8. Tape and reel SO-14 outline 1. Drawing is not in scale. Table 12. Tape and reel SO-14 mechanical data Dimensions Symbol mm Min. A Typ. inch Max. Min. 330 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Typ. 0.504 22.4 0.519 0.882 Ao 6.4 6.6 0.252 0.260 Bo 9 9.2 0.354 0.362 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.
PAGE 14
Package information Figure 9. 74VHC14 Tape and reel TSSOP14 outline 1. Drawing is not in scale. Table 13. Tape and reel TSSOP14 mechanical data Dimensions Symbol mm Min. A Max. Min. 330 13.2 Typ. Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 14/16 Typ. inch 0.504 22.4 0.519 0.882 Ao 6.7 6.9 0.264 0.272 Bo 5.3 5.5 0.209 0.217 Ko 1.6 1.8 0.063 0.071 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.
PAGE 15
74VHC14 8 Revision history Revision history Table 14. Document revision history Date Revision 12-Nov-2004 6 Ordering codes revision - pag. 1 02-May-2007 7 Document reformatted, updated Table 6 on page 6 8 Added Applications on page 1 Updated Table 1: Device summary on page 1 Updated Top in Table 5: Recommended operating conditions Updated ECOPACK® text in Section 7: Package information Minor textual updates 9 Added ESD performance into Features.
PAGE 16
74VHC14 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.