TC74VHCV245FT Datasheet, PDF (1/9 Pages) Toshiba Semiconductor – Octal Schmitt Bus Transceiver

TC74VHCV245FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHCV245FT,TC74VHCV245FK
Octal Schmitt Bus Transceiver
The TC74VHCV245 is an advanced high speed CMOS OCTAL
BUS TRANSCEIVER fabricated with silicon gate CMOS
technology.
It achieves the high speed operation similar to equivalent Bipolar
Schottky TTL while maintaining the CMOS low power
dissipation.
It is intended for two-way asynchronous communication between
data busses. The direction of data transmission is determined by
the level of the DIR input.
The enable input ( G ) can be used to disable the device so that the
busses are effectively isolated.
Input pin and bus terminal have hysteresis between the
positive-going and negative-going thresholds. Thus the
TC74VHCV245 is capable of squaring up transitions of slowly
changing input signals and provides an improved noise immunity.
Input protection and output circuit ensure that 0 to 5.5 V can be
applied to the input and output ^(Note) pins without regard to the
supply voltage. These structure prevents device destruction due to
mismatched supply and input/output voltages such as battery
back up, etc.
TC74VHCV245FT
TC74VHCV245FK
Note: Output in off-state.
Features (Note)
Weight
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
: 0.08 g ( typ.)
: 0.03 g ( typ.)
• High speed: t_pd = 3.8 ns (typ.) at V_CC = 5 V
• Low power dissipation: I_CC = 2 μA (max) at Ta = 25°C
• Wide operating voltage range: V_{CC (opr)} = 1.8 V to 5.5 V
• Ouput current: |I_OH|/I_OL = 16 mA (min) (V_CC = 4.5 V)
• Available in 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.) 245 type
Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result.
All floating (high impedance) bus pins must have their input levels fixed by means of pull-up or pull-down
resistors.
1
2010-07-09