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PDF TC7MET240AFK Data sheet ( Hoja de datos )

Número de pieza TC7MET240AFK
Descripción Octal Bus Buffer
Fabricantes Toshiba 
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No Preview Available ! TC7MET240AFK Hoja de datos, Descripción, Manual

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 C2MOS
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
address drivers, etc.
Weight: 0.03 g (typ.)
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
· High speed: tpd = 5.6 ns (typ.) (VCC = 5 V)
· Low power dissipation: ICC = 4 µA (max) (Ta = 25°C)
· Compatible with TTL outputs: VIL = 0.8 V (max)
VIH = 2.0 V (min)
· Power down protection is provided on all inputs and outputs.
· Balanced propagation delays: tpLH tpHL
· Low noise: VOLP = 1.0 V (max)
· Pin and function compatible with the 74 series (74AC/HC/F/ALS/LS etc.) 240/244 type.
1 2001-09-12

1 page




TC7MET240AFK pdf
Noise Characteristics (Input: tr = tf = 3 ns)
Characteristics
Symbol
Test Condition
Quiet output maximum dynamic VOL
Quiet output minimum dynamic VOL
Minimum high level dynamic input voltage VIH
Maximum high level dynamic input voltage VIL
VOLP
VOLV
VIHD
VILD
CL = 50 pF
CL = 50 pF
CL = 50 pF
CL = 50 pF
TC7MET240,244AFK
Ta = 25°C
VCC (V) Typ. Limit
5.0 0.8 1.0
5.0 -0.8 -1.0
5.0 ¾ 2.0
5.0 ¾ 0.8
Unit
V
V
V
V
5 2001-09-12

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