TC74AC161F_07 Datasheet, PDF (1/15 Pages) Toshiba Semiconductor – CMOS Digital Integrated Circuit Silicon Monolithic

TC74AC161,163P/F/FN/FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74AC161P,TC74AC161F,TC74AC161FN,TC74AC161FT
TC74AC163P,TC74AC163F,TC74AC163FN,TC74AC163FT
Synchronous Presettable 4-Bit Binary Counter
TC74AC161P/F/FN/FT Asynchronous Clear
TC74AC163P/F/FN/FT Synchronous Clear
The TC74AC161 and 163 are advanced high speed CMOS
SYNCHRONOUS PRESETTABLE COUNTERs fabricated with
silicon gate and double-layer metal wiring C²MOS technology.
They achieve the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
The CK input is active on the rising edge. Both LOAD and
CLR inputs are active on low logic level.
Presetting of these IC’s is synchronous to the rising edge of CK.
The clear function of the TC74AC163 is synchronous to CK,
while the TC74AC161 are cleared asynchronously.
Two enable inputs (ENP and ENT) and CARRY OUTPUT are
provided to enable easy cascading of counters, which facilitates
easy implementation of n-bit counters without using external
gates.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: f_max = 170 MHz (typ.) at V_CC = 5 V
• Low power dissipation: I_CC = 8 μA (max) at Ta = 25°C
• High noise immunity: V_NIH = V_NIL = 28% V_CC (min)
• Symmetrical output impedance: |I_OH| = I_OL = 24 mA (min)
Capability of driving 50 Ω
transmission lines.
• Balanced propagation delays: t_pLH ^∼− t_pHL
• Wide operating voltage range: V_{CC (opr)} = 2 to 5.5 V
• Pin and function compatible with 74F161/163
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74AC161P, TC74AC163P
TC74AC161F, TC74AC163F
TC74AC161FN, TC74AC163FN
TC74AC161FT, TC74AC163FT
Weight
DIP16-P-300-2.54A
SOP16-P-300-1.27A
SOL16-P-150-1.27
TSSOP16-P-0044-0.65A
: 1.00 g (typ.)
: 0.18 g (typ.)
: 0.13 g (typ.)
: 0.06 g (typ.)
1
2007-10-01