Features
- Free-running CLKA and CLKB may be asynchronous or coincident
- Two independent clocked FIFOs buffering data in opposite directions
- Mailbox bypass register for each FIFO
- Programmable Almost-Full and Almost-Empty flags
- Supports clock frequencies up to 83MHz
- Fast access times of 8ns
- Available in 120-pin TQFP package
- Industrial temperature range (–40C to +85C) is available
723642 - Block Diagram
Description
The 723642 is a monolithic Bidirectional SyncFIFO (clocked) memory. Two independent 1K x 36 dual-port SRAM FIFOs on board each chip buffer data in opposite directions. Communication between each port may bypass the FIFOs via two 36-bit mailbox registers. Each mailbox register has a flag to signal when new mail has been stored. The enables for each port are arranged to provide a simple bidirectional interface between microprocessors and/or buses with synchronous control.
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Temp. Grade | Pb (Lead) Free | Carrier Type |
|---|---|---|---|---|---|---|---|---|
| 723642L12PF | Obsolete | N/A | Out of Stock | TQFP | 120# | C | No | Tray |
| 723642L12PF8 | Obsolete | N/A | Out of Stock | TQFP | 120# | C | No | Reel |
| 723642L12PQF | Obsolete | N/A | Out of Stock | PQFP | 132# | C | No | Tray |
| 723642L12PQFG | Obsolete | N/A | Out of Stock | PQFP | 132# | C | Yes | Tray |
| 723642L15PF | Obsolete | N/A | Out of Stock | TQFP | 120# | C | No | Tray |
| 723642L15PF8 | Obsolete | N/A | Out of Stock | TQFP | 120# | C | No | Reel |
| 723642L15PFG | Obsolete | N/A | In Stock | TQFP | 120# | C | Yes | Tray |
| 723642L15PFG8 | Obsolete | N/A | Out of Stock | TQFP | 120# | C | Yes | Reel |
| 723642L15PQF | Obsolete | N/A | Out of Stock | PQFP | 132# | C | No | Tray |
| 723642L15PQFGI | Obsolete | N/A | Out of Stock | PQFP | 132# | I | Yes | Tray |
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- End Of Life NoticePDF 1.11 MB Aug 01, 2023
- Product Change NoticePDF 24 KB 7WDXRDKU4E7E-5-41812 Nov 14, 2012
- Product Change NoticePDF 252 KB 7WDXRDKU4E7E-5-41817 Oct 20, 2006
- Product Change NoticePDF 164 KB 7WDXRDKU4E7E-5-41811 May 11, 2006
- Product Change NoticePDF 16 KB 7WDXRDKU4E7E-5-41680 Aug 12, 2005
- Product Change NoticePDF 290 KB 7WDXRDKU4E7E-5-41712 Jul 19, 2005
- Product Change NoticePDF 80 KB 7WDXRDKU4E7E-5-41813 Dec 14, 2004
- Product Change NoticePDF 150 KB 7WDXRDKU4E7E-5-41738 Mar 20, 2003
- Product Change NoticePDF 65 KB 7WDXRDKU4E7E-5-41737 Mar 20, 2003
- Product Change NoticePDF 150 KB 7WDXRDKU4E7E-5-41678 Jun 17, 2002
- Product Change NoticePDF 274 KB 7WDXRDKU4E7E-5-41807 Jun 11, 2001
- End Of Life NoticePDF 30 KB 7WDXRDKU4E7E-5-41682 May 24, 2001
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- End Of Life NoticePDF 1.11 MB Aug 01, 2023
- End Of Life NoticePDF 86 KB 7WDXRDKU4E7E-5-54845 Jan 21, 2013
- Product Change NoticePDF 24 KB 7WDXRDKU4E7E-5-41812 Nov 14, 2012
- Product Change NoticePDF 252 KB 7WDXRDKU4E7E-5-41817 Oct 20, 2006
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