TC74VHC299F_07 Datasheet, PDF (1/12 Pages) Toshiba Semiconductor – 8-Bit Pipo Shift Register with Asynchronous Clear

TC74VHC299F/FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC299F,TC74VHC299FT
8-Bit Pipo Shift Register with Asynchronous Clear
The TC74VHC299 is an advanced high speed CMOS 8-BIT
PIPO SHIFT REGISTER 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.
It has a four modes (HOLD, SHIFT LEFT, SHIFT RIGHT and
LOAD DATA) controlled by the two selection inputs (S0, S1).
When one or both enable ( G1 , G2 ) are high, the eight I/O are
forced to the high-impedance state; however, sequential
operation or clearing of the register is not affected.
All inputs are equipped with protection circuits against static
discharge.
Features (Note 1) (Note 2) (Note 3)
• High speed: f_max = 160 MHz (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)
• Balanced propagation delays: t_pLH ^∼− t_pHL
• Wide operating voltage range: V_{CC (opr)} = 2 to 5.5 V
• Low noise: V_OLP = 1.4 V (max)
• Pin and function compatible with 74ALS299
TC74VHC299F
TC74VHC299FT
Weight
SOP20-P-300-1.27A
TSSOP20-P-0044-0.65A
: 0.22 g (typ.)
: 0.08 g (typ.)
Note 1: Do not apply a signal to A/QA to H/QH bus terminal when it is in the output mode. Damage may result.
Note 2: All floating (high impedance) A/QA to H/QH bus terminals must have their input levels fixed by means of pull
up or pull down resistors.
Note 3: A parasitic diode is formed between A/QA to H/QH bus and V_CC terminals. Therefore bus terminal can not
be used to interface 5 V to 3 V systems directly.
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2007-10-01