MC74VHCT245A: Octal Bus Transceiver
The MC74VHCT245A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It is intended for two-way asynchronous communication between data buses. The direction of data transmission is determined by the level of the DIR input. The output enable pin (OE) can be used to disable the device, so that the buses are effectively isolated.
技术特性
- High Speed: tPD = 4.0ns (Typ) at VCC = 5V
- Low Power Dissipation: ICC = 4µA (Max) at TA = 25 C
- High Noise Immunity: VNIH = VNIL = 28% VCC
- Power Down Protection Provided on Inputs
- Balanced Propagation Delays
- Designed for 2V to 5.5V Operating Range
- Low Noise: VOLP = 1.2V (Max)
- Pin and Function Compatible with Other Standard Logic Families
- Latchup Performance Exceeds 300mA
- ESD Performance: HBM > 2000V; Machine Model > 200V
- Chip Complexity: 308 FETs or 77 Equivalent Gates
APPLICATION NOTES
- Do not force a signal on an I/O pin when it is an active output,
damage may occur.
- All floating (high impedance) input or I/O pins must be fixed by
means of pull up or pull down resistors or bus terminator ICs.
- A parasitic diode is formed between the bus and VCC terminals.
Therefore, the VHC245 cannot be used to interface 5V to 3V systems
directly.
- These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.
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封装图 MARKING DIAGRAM
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订购信息 Ordering Information
产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价) |
类型 |
外形 |
类型 |
数量 |
MC74VHCT245ADTG |
Active |
|
Octal Bus Transceiver |
TSSOP-20 |
948E-02 |
1 |
Tube |
75 |
$0.2667 |
MC74VHCT245ADTRG |
Active |
|
Octal Bus Transceiver |
TSSOP-20 |
948E-02 |
1 |
Tape and Reel |
2500 |
$0.2667 |
MC74VHCT245ADWG |
Active |
|
Octal Bus Transceiver |
SOIC-20W |
751D-05 |
3 |
Tube |
38 |
$0.2667 |
MC74VHCT245ADWRG |
Active |
|
Octal Bus Transceiver |
SOIC-20W |
751D-05 |
3 |
Tape and Reel |
1000 |
$0.2667 |
MC74VHCT245AMELG |
Last Shipments |
|
Octal Bus Transceiver |
SOEIAJ-20 |
967-01 |
3 |
Tape and Reel |
2000 |
|
MC74VHCT245ADWR2 |
Consult Sales Office |
|
Octal Bus Transceiver |
SOIC-20W |
751D-05 |
1 |
Tape and Reel |
1000 |
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