tc74lcx245 TOSHIBA Semiconductor CORPORATION, tc74lcx245 Datasheet

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tc74lcx245

Manufacturer Part Number
tc74lcx245
Description
Low-voltage Octal Bus Transceiver With 5-v Tolerant Inputs And Outputs
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet

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Low-Voltage Octal Bus Transceiver with 5-V Tolerant Inputs and Outputs
transceiver. Designed for use in 3.3-V systems, it achieves
high-speed operation while maintaining the CMOS low power
dissipation.
but it could be used to interface to 5-V supply environment for
both inputs and outputs.
the DIR input. The enable input ( OE ) can be used to disable the
device so that the busses are effectively isolated.
discharge.
Features (Note)
The TC74LCX245 is a high-performance CMOS octal bus
The device is designed for low-voltage (3.3 V) VCC applications,
The direction of data transmission is determined by the level of
All inputs are equipped with protection circuits against static
Low-voltage operation: V
High-speed operation: t
Ouput current: |I
Latch-up performance: −500 mA
Available in JEITA SOP, TSSOP and VSSOP (US)
Bidirectional interface between 5.0 V and 3.3 V signals
Power-down protection provided on all inputs and outputs
Pin and function compatible with the 74 series
Note: Do not apply a signal to any bus pins when it is in the
(74AC/VHC/HC/F/ALS/LS etc.) 245 type
output mode. Damage may result.
All floating (high impedance) bus pins must have their
input levels fixed by means of pull-up or pull-down
resistors.
TC74LCX245F,TC74LCX245FT,TC74LCX245FK
OH
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
|/I
pd
OL
CC
= 7.0 ns (max) (V
= 24 mA (min) (V
= 2.0 to 3.6 V
CC
CC
= 3.0 to 3.6 V)
= 3.0 V)
1
Weight
SOP20-P-300-1.27A
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
TC74LCX245F
TC74LCX245FT
TC74LCX245FK
TC74LCX245F/FT/FK
: 0.22g (typ.)
: 0.08 g (typ.)
: 0.03 g (typ.)
2007-10-19

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tc74lcx245 Summary of contents

Page 1

... TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX245F,TC74LCX245FT,TC74LCX245FK Low-Voltage Octal Bus Transceiver with 5-V Tolerant Inputs and Outputs The TC74LCX245 is a high-performance CMOS octal bus transceiver. Designed for use in 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. The device is designed for low-voltage (3.3 V) VCC applications, but it could be used to interface to 5-V supply environment for both inputs and outputs ...

Page 2

... V CC DIR Function A-Bus B-Bus Output Input Input Output TC74LCX245F/FT/ 3EN1 (BA) 3EN2 (AB 2007-10-19 ...

Page 3

... CC Symbol Rating 2 1.5 to 3.6 (Note 5 5.5 (Note (Note 4) CC ± 24 (Note ± 12 (Note 6) − opr dt/ (Note TC74LCX245F/FT/FK Unit °C Unit °C ns/V 2007-10-19 ...

Page 4

... Figure 1, Figure 2 t pHL t pZL Figure 1, Figure 3 t pZH t pLZ Figure 1, Figure 3 t pHZ t osLH t osHL = |t − osHL pHLm pHLn 4 TC74LCX245F/FT/FK Min V (V) CC 2.7 to 3.6 2.0 ⎯ 2 − 100 μ A 2.7 to 3.6 − 0.2 = − 2.7 2.2 = − 3.0 2.4 = − 3.0 2.2 ⎯ 2.7 to 3.6 ⎯ ...

Page 5

... IN CC Open 6.0 V GND Measure = 500 Ω Figure 90% 1.5 V 10% 1 pLH Figure pLH pHL 5 TC74LCX245F/FT/ 2 500 Ω Typ. V (V) CC 3.3 0.8 3.3 0.8 Typ. V (V) CC 3.3 3.3 (Note) 3.3 Parameter Switch Open pLH pHL ...

Page 6

... Output Enable ( pLZ Output (An, Bn) Low to Off to Low t pHZ Output (An, Bn) High to Off to High Outputs enabled Figure 3 t TC74LCX245F/FT/ 90% 1.5 V 10% t pZL 1 0.3 V pZH − 0 1.5 V Outputs Outputs disabled enabled , pLZ pHZ pZL pZH 6 2.7 V GND 3 ...

Page 7

... Package Dimensions Weight: 0.22 g (typ.) TC74LCX245F/FT/FK 7 2007-10-19 ...

Page 8

... Package Dimensions Weight: 0.08 g (typ.) TC74LCX245F/FT/FK 8 2007-10-19 ...

Page 9

... Package Dimensions Weight: 0.03 g (typ.) TC74LCX245F/FT/FK 9 2007-10-19 ...

Page 10

... Please contact your sales representative for product-by-product details in this document regarding RoHS compatibility. Please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations. TC74LCX245F/FT/FK 10 20070701-EN 2007-10-19 ...

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