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TC74LCX138F(K.F)Datasheet PDF
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TC74LCX138F/FT/FK
2014-03-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX138F, TC74LCX138FT, TC74LCX138FK
Low-Voltage 3-to-8 Line Decoder with 5-V Tolerant Inputs and Outputs
The TC74LCX138 is a high-performance CMOS 3-to-8 decoder.
Designed for use in 3.3-V systems, it achieves high-speed
operation while maintaining the CMOS low-power dissipation.
The device is designed for low-voltage (3.3 V) V
CC
applications,
but it could be used to interface to 5-V supply environment for
inputs.
When the device is enabled, 3 binary select inputs (A, B and C)
determine which one of the outputs (
0Y
-
7Y
) will go low.
When enable input G1 is held low or either
2AG
or
2BG
is
held high, decoding function is inhibited and all outputs go high.
G1,
2AG
, and
2BG
inputs are provided to ease cascade
connection and for use as an address decoder for memory
systems.
All inputs are equipped with protection circuits against static
discharge.
Features
• Low-voltage operation: V
CC
= 1.65 to 3.6 V
• High-speed operation: t
pd
= 6.0 ns (max) (V
CC
= 3.0 to 3.6 V)
• Ouput current: |I
OH
|/I
OL
= 24 mA (min) (V
CC
= 3.0 V)
• Latch-up performance: ＞±500 mA
• Available in JEITA SOP, TSSOP and VSSOP (US)
• Power-down protection provided on all inputs and outputs
• Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.) 138 type
W
Weight
SOP16-P-300-1.27A : 0.18 g (typ.)
TSSOP16-P-0044-0.65A : 0.06 g (typ.)
VSSOP16-P-0030-0.50 : 0.02 g (typ.)
Note: The Electrical Characteristics of V
CC
=1.8±0.15V is only applicable for products which manufactured
from January 2009 onward.
TC74LCX138F
TC74LCX138FT
TC74LCX138FK
Start of commercial production
1994-10
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