TC74HC688AP_07 Datasheet, PDF (1/8 Pages) Toshiba Semiconductor – CMOS Digital Integrated Circuit Silicon Monolithic 8-Bit Equality Comparator

TC74HC688AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC688AP,TC74HC688AF
8-Bit Equality Comparator
The TC74HC688A is a high speed CMOS 8-BIT EQUALITY
COMPARATOR fabricated with silicon gate C²MOS technology.
It achieves the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
The TC74HC688A compares two 8-bit binary or BCD words
applied inputs P0~P7, and inputs Q0~Q7, and indicates whether
or not they are equal.
A signal active low enable is provided to facilitate cascading of
several packages to compare of words greater than 8 bits.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: t_pd = 17 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)
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |I_OH| = I_OL = 4 mA (min)
• ^{Balanced propagation delays: t}pLH ^{∼− t}pHL
• Wide operating voltage range: V_CC (opr) = 2~6 V
• Pin and function compatible with 74LS688
Pin Assignment
TC74HC688AP
TC74HC688AF
Weight
DIP20-P-300-2.54A
SOP20-P-300-1.27A
: 1.30 g (typ.)
: 0.22 g (typ.)
1
2007-10-01