TC74VHCT240AF datasheet(1/9 Pages) TOSHIBA

部件名	TC74VHCT240AF

功能描述	CMOS Digital Integrated Circuit Silicon Monolithic

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制造商	TOSHIBA [Toshiba Semiconductor]

网页	http://www.semicon.toshiba.co.jp/eng

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TC74VHCT240,244AF/AFT/AFK

2008-12-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74VHCT240AF,TC74VHCT240AFT,TC74VHCT240AFK

TC74VHCT244AF,TC74VHCT244AFT,TC74VHCT244AFK

Octal Bus Buffer

TC74VHCT240AF/AFT/AFK

Inverted, 3-State Outputs

TC74VHCT244AF/AFT/AFK

Non-Inverted, 3-State Outputs

The TC74VHCT240A and 244A 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 TC74VHCT240A is an inverting 3-state buffer having two

active-low output enables. The TC74VHCT244A 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.

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 (Note) 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.

Note:

Output in off-state

Features

• High speed: tpd = 6.1 ns (typ.) at VCC = 5 V

• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C

• Compatible with TTL inputs: 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.

TC74VHCT240AF, TC74VHCT244AF

TC74VHCT240AFT, TC74VHCT244AFT

TC74VHCT240AFK, TC74VHCT244AFK

Weight

SOP20-P-300-1.27A:

0.22 g (typ.)

TSSOP20-P-0044-0.65A:

0.08 g (typ.)

VSSOP20-P-0030-0.50:

0.03 g (typ.)

类似零件编号 - TC74VHCT240AF

制造商	部件名	数据表	功能描述
Toshiba Semiconductor	TC74VHCT240AF	256Kb / 6P	OCTAL BUS BUFFER INVERTED/NON-INVERTED, 3-STATE OUTPUTS
	TC74VHCT240AF	221Kb / 9P	Octal Bus Buffer
	TC74VHCT240AF	197Kb / 9P	TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
	TC74VHCT240AFK	221Kb / 9P	Octal Bus Buffer
	TC74VHCT240AFK	197Kb / 9P	TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

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