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74LVC74A ,positive-edge trigger
74LVC74A ,positive-edge trigger
74HC2G14GW
Inverting Schmitt-triggers
1. General descriptionThe 74HC2G14; 74HCT2G14 is a dual inverter with Schmitt-trigger inputs. Inputs include
clamp diodes. This enables the use of current limiting resistors to interface inputs to
voltages in excess of VCC. Schmitt trigger inputs transform slowly changing input signals
into sharply defined jitter-free output signals.
2. Features and benefits Wide supply voltage range from 2.0 Vto 6.0V Complies with JEDEC standard no. 7A Input levels: For 74HC2G14: CMOS level For 74HCT2G14: TTL level High noise immunity Low power dissipation Balanced propagation delays Unlimited input rise and fall times Multiple package options ESD protection: HBM JESD22-A114E exceeds 2000V MM JESD22-A115-A exceeds 200V Specified from 40 Cto+85 C and 40 Cto+125C
3. Applications Wave and pulse shaper for highly noisy environments Astable multivibrators Monostable multivibrators
74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
Rev. 2 — 14 March 2014 Product data sheet
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
4. Ordering information
5. Marking[1] The pin 1 indicator is located on the lower left corner of the device, below the marking code.
6. Functional diagram
Table 1. Ordering information
Table 2. Marking
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
7. Pinning information
7.1 Pinning
7.2 Pin description
8. Functional description[1] H= HIGH voltage level;= LOW voltage level.
Table 3. Pin description
Table 4. Function table[1]
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
9. Limiting values[1] The minimum input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For SC-88 and SC-74 packages: above 87.5 C the value of Ptot derates linearly with 4.0 mW/K.
10. Recommended operating conditions
Table 5. Limiting valuesIn accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Table 6. Recommended operating conditions
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
11. Static characteristicsTable 7. Static characteristics for 74HC2G14At recommended operating conditions; voltages are referenced to GND (ground=0V).
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
Table 7. Static characteristics for 74HC2G14 …continuedAt recommended operating conditions; voltages are referenced to GND (ground=0V).
Table 8. Static characteristics for 74HCT2G14At recommended operating conditions; voltages are referenced to GND (ground=0V).
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
Table 8. Static characteristics for 74HCT2G14 …continuedAt recommended operating conditions; voltages are referenced to GND (ground=0V).
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
12. Dynamic characteristics[1] tpd is the same as tPLH and tPHL
[2] tt is the same as tTLH and tTHL
[3] CPD is used to determine the dynamic power dissipation (PD in W). =CPD VCC2fi N+ (CL VCC2 fo) where:= input frequency in MHz;= output frequency in MHz;= output load capacitance in pF;
VCC= supply voltage in V;= number of inputs switching;
(CL VCC2fo)= sum of the outputs.
Table 9. Dynamic characteristicsVoltages are referenced to GND (ground=0 V); for test circuit see Figure6.
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
13. Waveforms
Table 10. Measurement points
Table 11. Test data
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
14. Transfer characteristicsTable 12. Transfer characteristicsVoltages are referenced to GND (ground=0 V); for test circuit see Figure6.
NXP Semiconductors 74HC2G14; 74HCT2G14
Dual inverting Schmitt trigger
15. Waveforms transfer characteristics
