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Details, datasheet, quote on part number:74ALS20AD
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Datasheet text preview:
INTEGRATED CIRCUITS
74ALS20A Dual 4-Input NAND gate
Product specification IC05 Data Handbook 1996 Jul 01
Philips Semiconductors
Philips Semiconductors
Product specification
Dual 4-input NAND gate
74ALS20A
TYPE 74ALS20A
TYPICAL PROPAGATION DELAY 4.5ns
TYPICAL SUPPLY CURRENT (TOTAL) 0.65mA
PIN CONFIGURATION
1A 1B NC 1 2 3 4 5 6 7 14 VCC 13 2D 12 2C 11 NC 10 2B 9 8 2A 2Y
ORDERING INFORMATION
ORDER CODE DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 74ALS20AN 74ALS20AD DRAWING NUMBER SOT27-1 SOT108-1
1C 1D 1Y GND
14-pin plastic DIP 14-pin plastic SO
SC00024
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS nA, nB, nC, nD nY Data inputs Data outputs DESCRIPTION 74ALS (U.L.) HIGH/LOW 1.0/1.0 20/80 LOAD VALUE HIGH/LOW 20µA/0.1mA 0.4mA/8mA
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
IEC/IEEE SYMBOL
1
&
6
1
2
4
5
9
10
12
13
2 4
1A 1B 1C 1D 2A 2B 2C 2D
5
9 1Y 2Y 10 8 12 6 VCC = Pin 14 GND = Pin 7 8 13
SC00025
SF00068
LOGIC DIAGRAM
1A 1B 1C 1D 2A 2B 2C VCC = Pin 14 GND = Pin 7 2D 1 2 4 5 9 10 12 13
FUNCTION TABLE
INPUTS nA
6 1Y
OUTPUT nC H X X L X nD H X X X L nY L H H H H
nB H X L X X
H L X
8
2Y
X X
SC00026
H = High voltage level L = Low voltage level X = Don't care
1996 Jul 01
2
8530859 01670
Philips Semiconductors
Product specification
Dual 4-input NAND gate
74ALS20A
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL VCC VIN IIN VOUT IOUT Tamb Tstg Supply voltage Input voltage Input current Voltage applied to output in High output state Current applied to output in Low output state Operating free-air temperature range Storage temperature range PARAMETER RATING 0.5 to +7.0 0.5 to +7.0 30 to +5 0.5 to VCC 16 0 to +70 65 to +150 UNIT V V mA V mA °C °C
RECOMMENDED OPERATING CONDITIONS
LIMITS SYMBOL VCC VIH VIL IIk IOH IOL Tamb Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level output current Low-level output current Operating free-air temperature range 0 PARAMETER MIN 4.5 2.0 0.8 18 0.4 8 +70 NOM 5.0 MAX 5.5 V V V mA mA mA °C UNIT
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL VOH VOL VIK II IIH IIL IO ICC PARAMETER High-level output voltage Low-level output voltage output voltage Input clamp voltage Input current at maximum input voltage High-level input current Low-level input current Output current3 ICCH ICCL TEST CONDITIONS1 CONDITIONS MIN VCC±10%, VIL = MAX, VIH = MIN, IOH = 0.4mA VCC = MIN, VIL = MAX, , , VIH = MIN VCC = MIN, II = IIK VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V VCC = MAX, VI = 0.5V VCC = MAX, VO = 2.25V VCC = MAX MAX VI = 0V VI = 4.5V 30 0.3 1.0 IOL = 4mA IOL = 8mA VCC 2 0.25 0.35 0.73 0.40 0.50 1.5 0.1 20 0.1 112 0.4 1.5 LIMITS TYP2 UNIT MAX V V V V mA µA mA mA mA mA
Supply current (total) current (total)
NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25°C. 3. The output conditions have been chosen to produce a current that closely approximate one half of the true short-circuit output current, IOS.
1996 Jul 01
3
Philips Semiconductors
Product specification
Dual 4-input NAND gate
74ALS20A
AC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITION Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500 MIN tPLH tPHL Propagation delay nA, nB, nC, nD to nY Waveform 1 2.0 3.0 MAX 11.0 10.0 ns UNIT
AC WAVEFORMS
For all waveforms, VM = 1.3V.
nA, nB, nC, nD
VM tPHL
VM tPLH VM VM
nY
SC00027
Waveform 1. Propagation Delay for Data to Output
TEST CIRCUIT AND WAVEFORMS
V CC NEGATIVE PULSE V IN PULSE GENERATOR RT D.U.T. VOUT 90% VM 10% tTHL (tff) CL RL tw VM 10% tTLH (tr ) 0.3V 90% AMP (V)
tTLH (tr ) 90%
tTHL (tf ) AMP (V) 90% VM tw 10% 0.3V
Test Circuit for Totem-pole Outputs
POSITIVE PULSE 10%
VM
DEFINITIONS: RL = Load resistor; see AC electrical characteristics for value. CL = Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value. RT = Termination resistance should be equal to ZOUT of pulse generators.
Input Pulse Definition INPUT PULSE REQUIREMENTS Family Amplitude VM 74ALS 3.5V 1.3V Rep.Rate 1MHz tw 500ns tTLH 2.0ns tT H L 2.0ns
SC00005
1996 Jul 01
4
Philips Semiconductors
Product specification
Dual 4-input NAND gate
74ALS20A
DIP14: plastic dual in-line package; 14 leads (300 mil)
SOT27-1
1996 Jul 01
5
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