TC74VHC238F_12 Datasheet, PDF (1/9 Pages) Toshiba Semiconductor – 3-to-8 Line Decoder

TC74VHC238F/FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC238F,TC74VHC238FT,TC74VHC238FK
3-to-8 Line Decoder
The TC74VHC238 is an advanced high speed CMOS 3-to-8
DECODER fabricated with silicon gate C²MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
When the device is enabled, 3 Binary Select inputs (A, B and C)
determine which one of the outputs (Y0-Y7) will go High.
When enable input G1 is held low or either G2A or G2B is
held high, decoding function is inhibited and all outputs go Low.
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 5.5 V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 to 3 V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
Features
• High speed: t_pd = 5.5 ns (typ.) at V_CC = 5 V
• Low power dissipation: I_CC = 4 μA (max) at Ta = 25°C
• High noise immunity: V_NIH = V_NIL = 28% V_CC (min)
• Power down protection is provided on all inputs.
• Balanced propagation delays: t_pLH ^∼− t_pHL
• Wide operating voltage range: V_{CC (opr)} = 2 to 5.5 V
• Pin and function compatible with 74ALS238
TC74VHC238F
TC74VHC238FT
TC74VHC238FK
Weight
SOP16-P-300-1.27A
TSSOP16-P-0044-0.65A
VSSOP16-P-0030-0.50
: 0.18 g (typ.)
: 0.06 g (typ.)
: 0.02 g (typ.)
1
2012-02-29