Texas Instruments SN74HCT14DBLE, SN74HCT14DBR, SN74HCT14DGVR, SN74HCT14DR, SN74HCT14N Datasheet
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SN54HCT14, SN74HCT14
HEX SCHMITT-TRIGGER INVERTERS
SCLS225C – JULY 1995 – REVISED FEBRUAR Y 2000
D
Inputs Are TTL-Voltage Compatible
D
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Very Small-Outline (DGV), Thin
Shrink Small-Outline (PW), and Ceramic
Flat (W) Packages, Ceramic Chip Carriers
(FK), and Standard Plastic (N) and Ceramic
(J) DIPs
description
The ’HCT14 devices contain six independent
inverters. The devices perform the Boolean
function Y = A in positive logic.
The SN54HCT14 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74HCT14 is characterized for
operation from –40°C to 85°C.
FUNCTION TABLE
(each inverter)
INPUT
A
H L
L H
OUTPUT
Y
SN54HCT14 ...J OR W PACKAGE
SN74HCT14 . . . D, DB, DGV, N, OR PW PACKAGE
SN54HCT14 . . . FK PACKAGE
2A
NC
2Y
NC
3A
NC – No internal connection
(TOP VIEW)
1A
1
1Y
2
2A
3
2Y
4
3A
5
6
3Y
GND
7
(TOP VIEW)
1Y1ANC
3212019
4
5
6
7
8
910111213
3Y
GND
NC
14
13
12
11
10
9
8
V
4Y
CC
V
6A
6Y
5A
5Y
4A
4Y
6A
18
17
16
15
14
4A
CC
6Y
NC
5A
NC
5Y
logic symbol
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, DB, DGV, J, N, PW, and W packages.
†
1
1A
3
2A
5
3A
9
4A
11
5A
13
6A
logic diagram (positive logic)
AY
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
10
12
2
1Y
4
2Y
6
3Y
8
4Y
5Y
6Y
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 2000, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
1
SN54HCT14, SN74HCT14
UNIT
HEX SCHMITT-TRIGGER INVERTERS
SCLS225C – JULY 1995 – REVISED FEBRUAR Y 2000
absolute maximum ratings over operating free-air temperature range
†
Supply voltage range, VCC –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
Output voltage range, V
(see Note 1) –0.5 V to VCC +0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
(see Note 1) –0.5 V to VCC +0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
Input clamp current, IIK (VI < 0 or VI > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC) ±25 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
(see Note 2): D package 86°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
DB package 96°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package 127°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 80°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 113°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51.
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
recommended operating conditions (see Note 3)
SN54HCT14 SN74HCT14
MIN MAX MIN MAX
V
V
V
T
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Supply voltage 4.5 5.5 4.5 5.5 V
CC
Input voltage 0 V
I
Output voltage 0 V
O
Operating free-air temperature –55 125 –40 85 °C
A
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
CC
CC
0 V
0 V
CC
CC
V
V
2
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