The 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Features:-
- Input levels:
- For 74HC244: CMOS level
- For 74HCT244: TTL level
- Octal bus interface
- Non-inverting 3-state outputs
- Complies with JEDEC standard no. 7 A
- ESD protection:
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- Multiple package options
- Specified from -40 C to +85 C and -40 C to +125 C
| Parameter | Specification |
| Supply Voltage (VCC) | 2.0 to + 6.0V |
| Input Voltage (VIN) | 0 to VCC |
| Output Voltage (VOUT) | 0 to VCC |
| input transition rise and fall rate | 1.67 to 139 |
| ambient temperature | -40 to +125 |
| total power dissipation | 750 |
| Storage Temperature Range (TSTG) | − 65°C to + 150°C |
| ground current | -70 |
| supply current | -70 |
| output current | +35 |
Package Includes:-
1 x 74HC244 Octal Buffer Line Driver IC (74244 IC) DIP-20 Package
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