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Part Number: M74HCT245
Description: The M74HCT245 is an advanced high-speed CMOS OCTAL BUS TRANSCEIVER (3-STATE) fabricated with silicon g...
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M74HCT245
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General Description
M74HCT245 General Description
The M74HCT245 is an advanced high-speed CMOS OCTAL BUS TRANSCEIVER (3-STATE) fabricated with silicon gate C2MOS technology.
This IC is intended for two-way asynchronous communication between data buses, and the direction of data transmission is determined by DIR input.
The enable input G can be used to disable the device so that the buses are effectively isolated. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
All floating bus terminals during High Z State must be held HIGH or LOW.
M74HCT245 Maximum Ratings
| Symbol | Parameter | Value | Unit |
| VCC | Supply Voltage | -0.5 to +7 | V |
| VI | DC Input Voltage | -0.5 to VCC + 0.5 | V |
| VO | DC Output Voltage | -0.5 to VCC + 0.5 | V |
| IIK | DC Input Diode Current | ± 20 | mA |
| IOK | DC Output Diode Current | ± 20 | mA |
| IO | DC Output Current | ± 25 | mA |
| ICC or IGND | DC VCC or Ground Current | ± 50 | mA |
| PD | Power Dissipation | 500(*) | mW |
| Tstg | Storage Temperature | -65 to +150 | °C |
| TL | Lead Temperature (10 sec) | 300 | °C |
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
M74HCT245 Features
`HIGH SPEED:
tPD = 13ns (TYP.) at VCC = 4.5V
`LOW POWER DISSIPATION:
ICC = 1mA(MAX.) at TA=25°C
`COMPATIBLE WITH TTL OUTPUTS :
VIH = 2V (MIN.) VIL = 0.8V (MAX)
`SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN)
`BALANCED PROPAGATION DELAYS:
tPLH tPHL
`PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 245
tPD = 13ns (TYP.) at VCC = 4.5V
`LOW POWER DISSIPATION:
ICC = 1mA(MAX.) at TA=25°C
`COMPATIBLE WITH TTL OUTPUTS :
VIH = 2V (MIN.) VIL = 0.8V (MAX)
`SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN)
`BALANCED PROPAGATION DELAYS:
tPLH tPHL
`PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 245
M74HCT245 Connection Diagram
M74HCT245
PDF/DataSheet Download
- Datasheet: M74HCT245
- File Size: 146656 KB
- Manufacturer: ST
- Click here to Download
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