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TC74LVX138F / FN / FT

TC74LVX138F, TC74LVX138FN, TC74LVX138FT

TC74LVX138F / FN / FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LVX138F, TC74LVX138FN, TC74LVX138FT
3-to-8 Line Decoder
The TC74LVX138F / FN / FT is a high-speed CMOS 3-to-8 line decoder fabricated with silicon gate CMOS technology. Designed for use in 3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. This device is suitable for low-voltage and battery operated systems. When the device is enabled, 3 Binary Select inputs (A, B and C) determine which one of the outputs (Y0-Y7) will go low. When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all outputs go high. G1, G2A, and G2B inputs are provided to ease cascade connection and for use as an address decoder for memory systems. An input protection circuit ensures that 0 to 5.5V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5V to 3V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages.
Note: xxxFN (JEDEC SOP) is not available in Japan. TC74LVX138F
TC74LVX138FN
Features
TC74LVX138FT
Weight SOP16-P-300-1.27: 0.18 g (typ.) SOL16-P-150-1.27: 0.12 g (typ.) TSSOP16-P-0044-0.65: 0.06 g (typ.)
TC74LVX138F / FN / FT
Pin Assignment (top view)
IEC Logic Symbol
Truth Table
Outputs Select
Selected Output
TC74LVX138F / FN / FT
System Diagram
Data outputs
Enable inputs
Maximum Ratings
Characteristics 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 Symbol VCC VIN VOUT IIK IOK IOUT ICC PD Tstg Rating
-65 to 150
Recommended Operating Conditions
Characteristics Supply voltage Input voltage Output voltage Operating temperature Input rise and fall time Symbol VCC VIN VOUT Topr dt / dv Rating 2.0 to 3.6 0 to 5.5 0 to VCC
-40 to 85
TC74LVX138F / FN / FT
Electrical Characteristics DC Characteristics
Characteristics Symbol Test Condition VCC (V) 2.0 H-level Input voltage L-level VIL
Min 1.5 2.0 2.4
H-level Output voltage L-level
Input leakage current Quiescent supply current
IIN ICC
TC74LVX138F / FN / FT
Characteristics Symbol Test Condition VCC (V) CL (pF) tpLH
Typ. 7.1 9.6 5.5 8.0 8.7 11.2 6.8 9.3 8.8 11.3 6.9 9.4
Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Max 16.5 20.0 10.5 14.0 19.5 23.0 ns 12.5 16.0 18.5 22.0 ns 11.5 15.0 2.5 2.5 10
Propagation delay time (A, B, C- Y )
Propagation delay time (G1- Y )
Propagation delay time ( G2 - Y )
tpHL tosLH tosHL Input capacitance Power dissipation capacitance CIN CPD
15 50 50 50 (Note 2) (Note 3)
Output to output skew
(Note 1)
TC74LVX138F / FN / FT
Characteristics Quiet output maximum dynamic Quiet output minimum dynamic Minimum high level dynamic input voltage Maximum low level dynamic input voltage VOL VOL VIH VIL Symbol VOLP VOLV VIHD VILD Test Condition VCC (V)
Typ. 3.3 3.3 3.3 3.3
Limit 0.5
Input Equivalent Circuit
INPUT
TC74LVX138F / FN / FT
Package Dimensions
Weight: 0.18 g (typ.)
TC74LVX138F / FN / FT
Package Dimensions
Weight: 0.12 g (typ.)
TC74LVX138F / FN / FT
Package Dimensions
Weight: 0.06 g (typ.)
TC74LVX138F / FN / FT
RESTRICTIONS ON PRODUCT USE
000707EBA