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Part: 74AHCT14
Category:
Logic
-> Schmitt Triggers
Description: 74AHC14; 74AHCT14; Hex Inverting Schmitt Trigger;; Package: SOT108-1 (SO14), SOT402-1 (TSSOP14)
Company: Philips Semiconductors
Datasheet: Download 74AHCT14 datasheet File size : 67 kB
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INTEGRATED CIRCUITS
DATA SHEET
74AHC14; 74AHCT14 Hex inverting Schmitt trigger
Product specification Supersedes data of 1999 Sep 27 2003 May 26
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
FEATURES · Balanced propagation delays · Inputs accepts voltages higher than VCC · For 74AHC only: operates with CMOS input levels · For 74AHCT only: operates with TTL input levels · ESD protection: HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V. · Specified from -40 to +85 °C and -40 to +125 °C. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf 3.0 ns. DESCRIPTION
74AHC14; 74AHCT14
The 74AHC14 and 74AHCT14 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A. The 74AHC14 and 74AHCT14 provide six inverting buffers with Schmitt-trigger action. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals.
TYPICAL SYMBOL tPHL/tPLH CI CO CPD Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW). PD = CPD × VCC2 × fi × N + (CL × VCC2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts; N = total load switching outputs; (CL × VCC2 × fo) = sum of the outputs. 2. The condition is VI = GND to VCC. FUNCTION TABLE See note 1. INPUT nA L H Note 1. H = HIGH voltage level; L = LOW voltage level. OUTPUT nY H L PARAMETER propagation delay nA to nY input capacitance output capacitance power dissipation capacitance per buffer CL = 50 pF; f = 1 MHz; notes 1 and 2 CONDITIONS AHC CL = 15 pF; VCC = 5 V VI = VCC or GND 3.2 3.0 4.0 10 AHCT 4.0 3.0 4.0 12 ns pF pF pF UNIT
2003 May 26
2
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
ORDERING INFORMATION PACKAGE TYPE NUMBER 74AHC14D 74AHCT14D 74AHC14PW 74AHCT14PW 74AHC14BQ 74AHCT14BQ PINNING PIN 1 2 3 4 5 6 7 SYMBOL 1A 1Y 2A 2Y 3A 3Y GND DESCRIPTION data input data output data input data output data input data output ground (0 V) TEMPERATURE RANGE -40 to +125 °C -40 to +125 °C -40 to +125 °C -40 to +125 °C -40 to +125 °C -40 to +125 °C PINS 14 14 14 14 14 14 PACKAGE SO14 SO14 TSSOP14 TSSOP14 DHVQFN14 DHVQFN14
74AHC14; 74AHCT14
MATERIAL plastic plastic plastic plastic plastic plastic
CODE SOT108-1 SOT108-1 SOT402-1 SOT402-1 SOT762-1 SOT762-1
PIN 8 9 10 11 12 13 14
SYMBOL 4Y 4A 5Y 5A 6Y 6A VCC
DESCRIPTION data output data input data output data input data output data input supply voltage
handbook, halfpage
1A 1
VCC 14 13 12 6A 6Y 5A 5Y 4A
handbook, halfpage
1A 1Y 2A 2Y 3A 3Y GND
1 2 3 4 5 6 7
MNA203
14 VCC 13 6A 12 6Y
1Y 2A 2Y 3A
2 3 4 5 6 7 Top view GND 8 4Y
GND(1)
11 10 9
14
11 5A 10 5Y 9 4A 3Y
8 4Y
MCE196
(1) The die substrate is attached to this pad using conductive die attach material. It can not be used as a supply pin or input.
Fig.1 Pin configuration SO14 and TSSOP14.
Fig.2 Pin configuration DHVQFN14.
2003 May 26
3
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74AHC14; 74AHCT14
handbook, halfpage
1
1A
1Y
handbook, halfpage
2
1
2
3
2A
2Y
4
3
4
5
3A
3Y
6
5
6
9
4A
4Y
8
9
8
11
5A
5Y
10
11
10
13
6A
6Y
12
13
12
MNB034
MNA204
Fig.3 Logic symbol.
Fig.4 IEC logic symbol.
handbook, halfpage
A
Y
MNA205
Fig.5 Logic diagram (one Schmitt trigger).
2003 May 26
4
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
RECOMMENDED OPERATING CONDITIONS 74AHC SYMBOL VCC VI VO Tamb PARAMETER supply voltage input voltage output voltage operating ambient temperature see DC and AC characteristics per device CONDITIONS MIN. 2.0 0 0 - -40 -40
74AHC14; 74AHCT14
74AHCT UNIT TYP. MAX. 5.0 - - +25 - - 5.5 5.5 VCC - V V V °C
TYP. MAX. MIN. 5.0 - - +25 - - 5.5 5.5 VCC - 4.5 0 0 -
+125 -40 +125 -40
+125 °C +125 °C
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134); voltages are referenced to GND (ground = 0 V). SYMBOL VCC VI IIK IOK IO ICC, IGND Tstg PD Notes 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. For SO14 packages: above 70 °C the value of PD derates linearly with 8 mW/K. For TSSOP14 packages: above 60 °C the value of PD derates linearly with 5.5 mW/K. For DHVQFN14 packages: above 60 °C the value of PD derates linearly with 4.5 mW/K. PARAMETER supply voltage input voltage input diode current output diode current output source or sink current VCC or GND current storage temperature power dissipation Tamb = -40 to +125 °C; note 2 VI VCC + 0.5 V; note 1 -0.5 V < VO < VCC + 0.5 V CONDITIONS MIN. MAX. UNIT -0.5 -0.5 - - - - -65 - +7.0 +7.0 -20 ±20 ±25 ±75 500 V V mA mA mA mA mW
+150 °C
2003 May 26
5
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