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PDF TC74ACT540FT Data sheet ( Hoja de datos )
| Número de pieza | TC74ACT540FT | |
| Descripción | Octal Bus Buffer | |
| Fabricantes | Toshiba Semiconductor | |
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TC74ACT540,541P/F/FW/FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74ACT540P,TC74ACT540F,TC74ACT540FW,TC74ACT540FT
TC74ACT541P,TC74ACT541F,TC74ACT541FW,TC74ACT541FT
Octal Bus Buffer
TC74ACT540P/F/FW/FT Inverting, 3-State
Outputs
TC74ACT541P/F/FW/FT Non-Inverting,
3-State Outputs
Note: xxxFW (JEDEC SOP) is not available in
Japan.
TC74ACT540P, TC74ACT541P
The TC74ACT540/TC74ACT541 are advanced high speed
CMOS OCTAL BUS BUFFERs 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.
These devices 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.
The TC74ACT540 is an inverting type, and the TC74ACT541 is
a non-inverting type.
When either G1 or G2 are high, the terminal outputs are in
the high-impedance state.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: tpd = 4.3 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 8 µA (max) at Ta = 25°C
• Compatible with TTL outputs
: VIL = 0.8 V (max) VIH = 2.0 V (min)
• Symmetrical output impedance
: |IOH| = IOL = 24 mA (min)
Capability of driving 50 Ω transmission lines.
• Balanced propagation delays: tpLH ∼− tpHL
• Pin and function compatible with 74F540/541
TC74ACT540F, TC74ACT541F
TC74ACT540FW, TC74ACT541FW
TC74ACT540FT, TC74ACT541FT
Weight
DIP20-P-300-2.54A
: 1.30 g (typ.)
SOP20-P-300-1.27A
: 0.22 g (typ.)
SOP20-P-300-1.27
: 0.22 g (typ.)
SOL20-P-300-1.27
: 0.46 g (typ.)
TSSOP20-P-0044-0.65A : 0.08 g (typ.)
1
2006-06-01
1 page  
TC74ACT540,541P/F/FW/FT
AC Characteristics (CL = 50 pF, RL = 500 Ω, input: tr = tf = 3 ns)
Characteristics
Propagation delay
time (Note 2)
Propagation delay
time (Note 3)
Output enable time
Output disable time
Input capacitance
Output capacitance
Power dissipation
capacitance
Symbol
Test Condition
VCC (V)
tpLH
tpHL
⎯ 5.0 ± 0.5
tpLH
tpHL
⎯ 5.0 ± 0.5
tpZL
tpZH
⎯ 5.0 ± 0.5
tpLZ
tpHZ
⎯ 5.0 ± 0.5
CIN ⎯
COUT
⎯
CPD
TC74ACT540
(Note 1) TC74ACT541
Ta = 25°C
Min Typ. Max
⎯ 5.0 8.3
⎯ 5.0 8.3
⎯ 7.3 11.4
⎯ 5.9 9.2
⎯ 5 10
⎯ 10 ⎯
⎯ 24 ⎯
⎯ 27 ⎯
Ta =
−40 to 85°C
Min Max
1.0 9.5
1.0 9.5
1.0 13.0
1.0 10.5
⎯ 10
⎯⎯
⎯⎯
⎯⎯
Unit
ns
ns
ns
ns
pF
pF
pF
Note 1: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
ICC (opr) = CPD·VCC·fIN + ICC/8 (per bit)
Note 2: For TC74ACT540 only
Note 3: For TC74ACT541 only
5 2006-06-01
5 Page 
TC74ACT540,541P/F/FW/FT
Note: Lead (Pb)-Free Packages
DIP20-P-300-2.54A SOP20-P-300-1.27A TSSOP20-P-0044-0.65A
RESTRICTIONS ON PRODUCT USE
• The information contained herein is subject to change without notice. 021023_D
060116EBA
• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc. 021023_A
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk. 021023_B
• The products described in this document shall not be used or embedded to any downstream products of which
manufacture, use and/or sale are prohibited under any applicable laws and regulations. 060106_Q
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of
TOSHIBA or others. 021023_C
• The products described in this document are subject to the foreign exchange and foreign trade laws. 021023_E
11 2006-06-01
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet TC74ACT540FT.PDF ] | |
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