NOTE: Datasheet may not yet reflect updated package obsolescence/phase out status or Package Drawing. Please refer to the PRODUCT OPTIONS tab for the most up to date package options and drawings. Please refer to PCN/PDN tabs for most current package obsolescence/phase out status.
The PI5C3257 is a Quad 2:1 multiplexer/ demultiplexer with three-state outputs that is pinout and function compatible with the PI74FCT257T, 74F257, and 74ALS/AS/LS257. Inputs can be connected to outputs with low On-Resistance (5Ω) with no additional ground bounce noise or propagation delay.
Amended PCN # 13-04 which states that these packages: TSSOP (L08, L14, L16, L24), SSOP (H20), QSOP (Q16, Q20, Q24), SOIC (W08, W14, W16) and TQFN (ZL72) will be assembled using copper wire. Pericom has changed the business plan and we now intend to use gold wire only for particular products while the rest remains using copper wire.
Adding two internal assembly and test sites: Diodes Technology (Chengdu) Company Limited (CAT) located in Chengdu, China and Diodes SKE/DSH (Shanghai Kaihong Electronic Co./Diodes Inc. Shanghai) (SAT) located in Shanghai, China.
Update some of our package outline drawing dimensions to align with JEDEC standards (with some exceptions) on few packages to accommodate the POD’s of our existing assembly suppliers and own assembly factories
Change the tape and reel quantity multiple for the following package types from 3,000 to 2,500: TSSOP-8, -14, -16 (L), QSOP-16, -20 (Q), MQSOP-8 (UE), SOICP-8, -14, -16 (W) pins
Change the tape and reel quantity multiple for the following package types from 4,000 to 2,500: MQSOP-8, -10 (U) pins