Document
TC74HCT139AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HCT139AP, TC74HCT139AF
Dual 2-to-4 Line Decoder
The TC74HCT139A is a high speed CMOS 2-to-4 LINE DECODER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.
This device may be used as a level converter for interfacing TTL or NMOS to High Speed CMOS. The inputs are compatible with TTL, NMOS and CMOS output voltage levels.
The active low enable input can be used for gating or it can be used as a data input for demultiplexing applications.
When the enable input is held “H”, all four outputs are fixed at a high logic level independent of the other inputs.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features
• High speed: tpd = 17 ns (typ.) at VCC = 5 V • Low power dissipation: ICC = 4 μA (max) at Ta = 25°C • Compatible with TTL outputs: VIH = 2 V (min)
VIL = 0.8 V (max) • Wide interfacing ability: LSTTL, NMOS, CMOS • Output drive capability: 10 LSTTL loads • Symmetrical output impedance: |IOH| = IOL = 4 mA (min) • Balanced propagation delays: tpLH ∼− tpHL • Pin and function compatible with 74LS139
Pin Assignment
TC74HCT139AP TC74HCT139AF
Weight DIP16-P-300-2.54A SOP16-P-300-1.27A
: 1.00 g (typ.) : 0.18 g (typ.)
Start of commercial production
1988-05
1
2014-03-01
IEC Logic Symbol
TC74HCT139AP/AF
Truth Table
Inputs
Outputs
Enable
Select
Y0 Y1 Y2 Y3
G
B
A
H
X
X
H
H
H
H
L
L
L
L
H
H
H
L
L
H
H
L
H
H
L
H
L
H
H
L
H
L
H
H
H
H
H
L
X: Don’t care
Selected Output
None Y0 Y1 Y2 Y3
Absolute Maximum Ratings (Note 1)
Characteristics
Symbol
Rating
Unit
Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current DC VCC/ground current Power dissipation Storage temperature
VCC VIN VOUT IIK IOK IOUT ICC PD Tstg
−0.5 to 7
V
−0.5 to VCC + 0.5
V
−0.5 to VCC + 0.5
V
±20
mA
±20
mA
±25
mA
±50
mA
500 (DIP) (Note 2)/180 (SOP)
mW
−65 to 150
°C
Note 1:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook (“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report and estimated failure rate, etc).
Note 2: 500 mW in the range of Ta = −40 to 65°C. From Ta = 65 to 85°C a derating factor of −10 mW/°C shall be applied until 300 mW.
2
2014-03-01
Operating Ranges (Note)
TC74HCT139AP/AF
Characteristics
Symbol
Rating
Unit
Supply voltage Input voltage Output voltage Operating temperature Input rise and fall time
VCC VIN VOUT Topr tr, tf
4.5 to 5.5
V
0 to VCC
V
0 to VCC
V
−40 to 85
°C
0 to 500
ns
Note: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND.
Electrical Characteristics
DC Characteristics
Characteristics
High-level input voltage Low-level input voltage
High-level output voltage
Low-level output voltage
Input leakage current
Quiescent supply current
Symbol VIH
Test Condition
Ta = 25°C
Ta = −40 to 85°C Unit
VCC (V) Min Typ. Max Min Max
⎯
4.5 to 5.5 2.0
⎯
⎯
2.0
⎯
V
VIL VOH VOL IIN ICC
IC
⎯
4.5 to 5.5 ⎯
⎯
0.8
⎯
0.8
V
VIN
IOH = −20 μA
4.5
= VIH or VIL IOH = −4 mA
4.5
VIN
IOL = 20 μA
4.5
= VIH or VIL IOL = 4 mA
4.5
VIN = VCC or GND
5.5
4.4 4.5
⎯
4.4
⎯
V
4.18 4.31 ⎯ 4.13 ⎯
⎯
0.0 0.1
⎯
0.1
V
⎯ 0.17 0.26 ⎯ 0.33
⎯
⎯ ±0.1 ⎯ ±1.0 μA
VIN = VCC or GND
5.5
⎯
⎯
4.0
⎯ 40.0 μA
Per input: VIN = 0.5 V or 2.4 V
5.5
⎯
⎯
2.0
⎯
2.9 mA
Other input: VCC or GND
AC Characteristics (CL = 15 pF, VCC = 5 V, Ta = 25°C, input: tr = tf = 6 ns)
Characteristics
Symbol
Test Condition
Min Typ. Max Unit
Output transition time
tTLH tTHL
Propagation delay time
tpLH
(A, B- Y )
tpHL
Propagation delay time
tpLH
(G-Y )
tpHL
⎯
⎯
4
12
ns
⎯
⎯
15
25 ns
⎯
⎯
14
23
ns
3
2014-03-01
TC74HCT139AP/AF
AC Characteristics (CL = 50 pF, input: tr = tf = 6 ns)
Characteristics
Symbol
Output transition time
tTLH tTHL
Propagation delay time
tpLH
(A, B- Y )
tpHL
Test Condition
Ta = 25°C
Ta = −40 to 85°C Unit
VCC (V) Min Typ. Max Min Max
4.5
⎯
8
15
⎯
19
⎯
ns
5.5
⎯
7
14
.