TC74HCT157AP_07 Datasheet, PDF (1/8 Pages) Toshiba Semiconductor – Quad 2-Channel Multiplexer

TC74HCT157AP/AF/AFN
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HCT157AP,TC74HCT157AF,TC74HCT157AFN
Quad 2-Channel Multiplexer
The TC74HCT157A is a high speed CMOS 2-CHANNEL
MULTIPLEXERs fabricated with silicon gate C²MOS technology.
It achieves the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
This device may be used as a level converter for interfacing
TTL or NMOS to High Speed CMOS. The inputs are compatible
with TTL, NMOS and CMOS output voltage levels.
When STROBE is held high, selection of data is inhibited
and all the outputs become low.
The SELECT decoding determines whether the A or B inputs
get transferred to their corresponding Y outputs.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: t_pd = 21 ns (typ.) at V_CC = 5 V
• Low power dissipation: I_CC = 4 μA (max) at Ta = 25°C
• Compatible with TTL outputs: V_IH = 2.0 V (min)
V_IL = 0.8 V (max)
• Wide interfacing ability: LSTTL, NMOS, CMOS
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |I_OH| = I_OL = 4 mA (min)
• Balanced propagation delays: t_pLH ^∼− t_pHL
• Pin and function compatible with 74LS157
Pin Assignment
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74HCT157AP
TC74HCT157AF
TC74HCT157AFN
Weight
DIP16-P-300-2.54A
SOP16-P-300-1.27A
SOL16-P-150-1.27
: 1.00 g (typ.)
: 0.18 g (typ.)
: 0.13 g (typ.)
1
2007-10-01