Overview
The 74AHC244-Q100; 74AHCT244-Q100 is a high-speed Si-gate CMOS device.
The 74AHC244-Q100; 74AHCT244-Q100 have octal non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs are controlled by the output enable inputs (nOE)’. A HIGH on nOE’ causes the outputs to assume a high-impedance OFF state.
This product has been qualified for the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.
| Part Number | 74AHCT244-Q100, 74AHCT244-Q100 |
| Function | Octal buffer/line driver; 3-state |
| Package | 20 pin SOIC |
| Manufacturer | NXP |
| Datasheet | Download PDF  |
74AHCT244 Features
- Automotive product qualification in accordance with AEC-Q100 (Grade 1)
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C
- Balanced propagation delays
- All inputs have a Schmitt trigger action
- Inputs accept voltages higher than VCC
- For 74AHC244-Q100 only: operates with CMOS input levels
- For 74AHCT244-Q100 only: operates with TTL input levels
- ESD protection:
- MIL-STD-883, method 3015 exceeds 2000 V
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V (C = 200 pf, R = 0 W)
- Multiple package options
Recommended Operating Condition
Voltages are referenced to GND (ground = 0 V).
| Symbol | Parameter | Conditions | 74AHC244-Q100 | 74AHCT244-Q100 | Unit | ||||
| Min | Typ | Max | Min | Typ | Max | ||||
| VCC | supply voltage | 2.0 | 5.0 | 5.5 | 4.5 | 5.0 | 5.5 | V | |
| VI | input voltage | 0 | – | 5.5 | 0 | – | 5.5 | V | |
| VO | output voltage | 0 | – | VCC | 0 | – | VCC | V | |
| Tamb | ambient temperature | -40 | +25 | +125 | -40 | +25 | +125 | °C | |
| Dt/DV | input transition rise | VCC = 3.3 V ± 0.3 V | – | – | 100 | – | – | – | ns/V |
| and fall rate VCC = 5.0 V ± 0.5 V | – | – | 20 | – | – | 20 | ns/V | ||
- [1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
- [2] Ptot derates linearly with 8 mW/K above 70C.
- [3] Ptot derates linearly with 5.5 mW/K above 60C.
- [4] Ptot derates linearly with 4.5 mW/K above 60C.
74AHCT244 Pinout
Pin Definitions
| Symbol | Pin | Description |
| 1OE, 2OE | 1, 19 | output enable input (active LOW) |
| 1A[0:3] | 2, 4, 6, 8 | data input |
| 2A[0:3] | 17, 15, 13, 11 | data input |
| 1Y[0:3] | 18, 16, 14, 12 | data output |
| 2Y[0:3] | 3, 5, 7, 9 | data output |
| GND | 10 | ground (0 V) |
| VCC | 20 | supply voltage |
Applications
- Signal buffering
- Level shifting
- Bus drivers
- Data communication
- Industrial control systems
- Automotive electronics
74AHCT244 Datasheet
Download the 74AHCT244 IC Datasheet from the link given below.
