1. TTL / CMOS.
2. Tight Symmetry.
3. High Reliability.
Features: 1. Typical 12.8 x 12.8 x 5.0 mm standard package. 2. HCMOS circuit TTL/CMOS compatible. 3. Hermetically sealed metal case and high reliability. 4. Tight symmetry(45 to 55%) available. 5. Tri-state output option available. 6. Packing: 50pcs per Tray. Frequency range: 5V: 1MHz~156MHz, 3.3V: 1MHz~156MHz.