TC7MET240,244AFK
TOSHIBA CMOS Didital Integrated Circuit Silicon Monolithic
TC7MET240AFK,TC7MET244AFK
Octal Bus Buffer
TC7MET240AFK Inverted, 3-State Outputs
TC7MET244AFK Non-Inverted, 3-State Outputs
The TC7MET240AFK and 244AFK are advanced high speed
CMOS octal bus buffers fabricated with silicon gate C
2
MOS
technology. They achieve the high speed operation similar to
equivalent bipolar schottky TTL while maintaining the CMOS
low power dissipation.
The TC7MET240AFK is an inverting 3-state buffer having two
active-low output enables. TC7MET244AFK is a non-inverting
3-state buffer, and has two active-low output enables.
These devices are designed to be used with 3-state memory
Weight: 0.03 g (typ.)
address drivers, etc.
The input voltage are compatible with TTL output voltage.
These devices may be used as a level converter for interfacing 3.3 V to 5 V system.
Input protection and output circuit ensure that 0 to 5.5 V can be applied to the input and output (*) 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, hot board insertion, etc.
*:
output in off-state
Features
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High speed: t
pd
= 5.6 ns (typ.) (V
CC
= 5 V)
Low power dissipation: I
CC
= 4 碌A (max) (Ta = 25擄C)
Compatible with TTL outputs: V
IL
= 0.8 V (max)
V
IH
= 2.0 V (min)
Power down protection is provided on all inputs and outputs.
Balanced propagation delays: t
pLH
鈮?/div>
t
pHL
Low noise:
V
OLP
=
1.0
V (max)
Pin and function compatible with the 74 series (74AC/HC/F/ALS/LS etc.) 240/244 type.
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2001-09-12
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