MC74VHC244: Octal Non-inverting Bus Buffer, 3-State
The MC74VHC244 is an advanced high speed CMOS octal bus buffer fabricated with silicon gate CMOS technology. The MC74VHC244 is a noninverting 3-state buffer, and has two active-low output enables. This device is designed to be used with 3-state memory address drivers, etc.The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems.
Features- High Speed: tPD = 3.9ns (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 = 0.9V (Max)
- Pin and Function Compatible with Other Standard Logic Families
- Latchup Performance Exceeds 300mA
- ESD Performance: HBM > 2000V; Machine Model > 200V
- Chip Complexity: 136 FETs
- Pb-Free Packages are Available
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Data Sheets (1)
| Document Title | Document ID/Size | Revision | Revision Date |
|---|
| Octal Bus Buffer | MC74VHC244/D (134.0kB) | 9 | |
Package Drawings (2)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| MC74VHC244DTG | Active | Pb-free
Halide free | TSSOP-20 | 948E-02 | 1 | Tube | 75 | $0.2667 |
| MC74VHC244DTR2G | Active | Pb-free
Halide free | TSSOP-20 | 948E-02 | 1 | Tape and Reel | 2500 | $0.2667 |
| MC74VHC244DWR2G | Active | Pb-free
Halide free | SOIC-20W | 751D-05 | 3 | Tape and Reel | 1000 | $0.2667 |
| NLV74VHC244DTR2G | Active | PPAP Capable
Pb-free
Halide free | TSSOP-20 | 948E-02 | 1 | Tape and Reel | 2500 | $0.2933 |
Specifications
| Product | Channels | Output | VCC Min (V) | VCC Max (V) | tpd Max (ns) | IO Max (mA) |
|---|
| MC74VHC244DTG | 8 | 3-State | 2 | 5.5 | 7.5 | 8 |
| MC74VHC244DTR2G | 8 | 3-State | 2 | 5.5 | 7.5 | 8 |
| MC74VHC244DWR2G | 8 | 3-State | 2 | 5.5 | 7.5 | 8 |
| NLV74VHC244DTR2G | 8 | 3-State | 2 | 5.5 | 7.5 | 8 |
