TI SN74HCT08PW

SN54HCT08, SN74HCT08
QUADRUPLE 2-INPUT POSITIVE-AND GATES
SCLS063B – NOVEMBER 1988 – REVISED MAY 1997
D
D
SN54HCT08 . . . J OR W PACKAGE
SN74HCT08 . . . D, DB, N, OR PW PACKAGE
(TOP VIEW)
Inputs Are TTL-Voltage Compatible
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW), and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
1A
1B
1Y
2A
2B
2Y
GND
description
These devices contain four independent 2-input
AND gates. They perform the Boolean function
Y
A • B or Y
A B in positive logic.
+
+ )
B
H
H
H
L
X
L
X
L
L
3
12
4
11
5
10
6
9
7
8
VCC
4B
4A
4Y
3B
3A
3Y
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
4A
NC
4Y
NC
3B
2Y
GND
NC
3Y
3A
A
13
1B
1A
NC
VCC
4B
1Y
NC
2A
NC
2B
FUNCTION TABLE
(each gate)
OUTPUT
Y
14
2
SN54HCT08 . . . FK PACKAGE
(TOP VIEW)
The SN54HCT08 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74HCT08 is characterized for
operation from –40°C to 85°C.
INPUTS
1
NC – No internal connection
logic symbol†
1A
1B
2A
2B
3A
3B
4A
4B
1
&
2
3
1Y
4
6
5
2Y
9
8
10
3Y
12
11
13
4Y
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, DB, J, N, PW, and W packages.
logic diagram (positive logic)
A
Y
B
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.
Copyright  1997, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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
1
SN54HCT08, SN74HCT08
QUADRUPLE 2-INPUT POSITIVE-AND GATES
SCLS063B – NOVEMBER 1988 – REVISED MAY 1997
absolute maximum ratings over operating free-air temperature range†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127°C/W
DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† 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, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
SN54HCT08
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
VO
tt
TA
Operating free-air temperature
High-level input voltage
VCC = 4.5 V to 5.5 V
VCC = 4.5 V to 5.5 V
SN74HCT08
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.5
5
5.5
2
2
UNIT
V
V
0
0.8
0
0.8
V
Input voltage
0
0
VCC
VCC
V
0
VCC
VCC
0
Output voltage
Input transition (rise and fall) time
0
500
0
500
ns
–55
125
–40
85
°C
V
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
VOH
VI = VIH or VIL
IOH = –20 µA
IOH = –4 mA
45V
4.5
VOL
VI = VIH or VIL
IOL = 20 µA
IOL = 4 mA
45V
4.5
II
ICC
VI = VCC or 0
VI = VCC or 0,
∆ICC‡
5.5 V
IO = 0
One input at 0.5 V or 2.4 V,
Other inputs at 0 or VCC
Ci
MIN
TA = 25°C
TYP
MAX
4.5 V
to 5.5 V
MIN
MAX
SN74HCT08
MIN
4.4
4.499
4.4
4.4
3.98
4.3
3.7
3.84
MAX
V
0.1
0.1
0.1
0.17
0.26
0.4
0.33
±0.1
±100
±1000
±1000
nA
2
40
20
µA
1.4
2.4
3
2.9
mA
3
10
10
10
pF
‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
2
POST OFFICE BOX 655303
UNIT
0.001
5.5 V
5.5 V
SN54HCT08
• DALLAS, TEXAS 75265
V
SN54HCT08, SN74HCT08
QUADRUPLE 2-INPUT POSITIVE-AND GATES
SCLS063B – NOVEMBER 1988 – REVISED MAY 1997
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tpd
d
A or B
Y
tt
Y
VCC
MIN
TA = 25°C
TYP
MAX
SN54HCT08
MIN
SN74HCT08
MAX
MIN
MAX
4.5 V
15
24
35
30
5.5 V
13
22
32
27
4.5 V
9
15
22
19
5.5 V
8
14
20
17
UNIT
ns
ns
operating characteristics, TA = 25°C
PARAMETER
Cpd
TEST CONDITIONS
Power dissipation capacitance per gate
No load
TYP
UNIT
20
pF
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
3V
Test
Point
Input
1.3 V
1.3 V
0V
CL = 50 pF
(see Note A)
tPLH
In-Phase
Output
LOAD CIRCUIT
1.3 V
10%
tPHL
90%
90%
tr
Input 1.3 V
0.3 V
2.7 V
2.7 V
tr
tPHL
3V
1.3 V
0.3 V 0 V
Out-of-Phase
Output
90%
tf
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
VOH
1.3 V
10% V
OL
tf
tPLH
1.3 V
10%
tf
1.3 V
10%
90%
VOH
VOL
tr
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT RISE AND FALL TIMES
NOTES: A. CL includes probe and test-fixture capacitance.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns.
C. The outputs are measured one at a time with one input transition per measurement.
D. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
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Copyright  1998, Texas Instruments Incorporated