Features
- 10 ns read/write cycle time
- Empty and Full flags signal FIFO status
- Easy expandable in depth and width
- Asynchronous or coincident read and write clocks
- Programmable Almost-Empty and Almost-Full flags with default settings
- Half-Full flag capability
- Dual-Port zero fall-through time architecture
- Output enable puts output data bus in high-impedance state
- Available in 64-pin TQFP, STQFP and 68-pin PLCC packages
- Industrial temperature range (–40C to +85C) is available
72235 - Block Diagram
Description
The 72235 is a 2K x 18 First-In, First-Out memory with clocked read and write controls and would be useful for a wide variety of data buffering needs, such as optical disk controllers, Local Area Networks (LANs), and interprocessor communication. These FIFOs have 18-bit input and output ports. The read clock can be tied to the write clock for single clock operation or the two clocks can run asynchronous of one another for dual-clock operation. These devices are depth expandable using a Daisy-Chain technique.
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Temp. Grade | Pb (Lead) Free | Carrier Type |
|---|---|---|---|---|---|---|---|---|
| 72235LB10J | Obsolete | N/A | Out of Stock | PLCC | 68# | C | No | Tube |
| 72235LB10J8 | Obsolete | N/A | Out of Stock | PLCC | 68# | C | No | Reel |
| 72235LB10JG | Obsolete | N/A | Out of Stock | PLCC | 68# | C | Yes | Tube |
| 72235LB10JG8 | Obsolete | N/A | Out of Stock | PLCC | 68# | C | Yes | Reel |
| 72235LB10PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray |
| 72235LB10PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel |
| 72235LB10PFG | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Tray |
| 72235LB10PFG8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Reel |
| 72235LB10TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray |
| 72235LB10TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel |
| 72235LB10TFG | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Tray |
| 72235LB10TFG8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Reel |
| 72235LB15J | Obsolete | N/A | Out of Stock | PLCC | 68# | C | No | Tube |
| 72235LB15J8 | Obsolete | N/A | Out of Stock | PLCC | 68# | C | No | Reel |
| 72235LB15JI | Obsolete | N/A | Out of Stock | PLCC | 68# | I | No | Tube |
| 72235LB15JI8 | Obsolete | N/A | Out of Stock | PLCC | 68# | I | No | Reel |
| 72235LB15PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray |
| 72235LB15PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel |
| 72235LB15PFGI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | Yes | Tray |
| 72235LB15PFGI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | Yes | Reel |
| 72235LB15PFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray |
| 72235LB15PFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel |
| 72235LB15TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray |
| 72235LB15TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel |
| 72235LB15TFGI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | Yes | Tray |
| 72235LB15TFGI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | Yes | Reel |
| 72235LB15TFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray |
| 72235LB15TFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel |
| 72235LB25J | Obsolete | N/A | Out of Stock | PLCC | 68# | C | No | Tube |
| 72235LB25J8 | Obsolete | N/A | Out of Stock | PLCC | 68# | C | No | Reel |
| 72235LB25JI | Obsolete | N/A | Out of Stock | PLCC | 68# | I | No | Tube |
| 72235LB25JI8 | Obsolete | N/A | Out of Stock | PLCC | 68# | I | No | Reel |
| 72235LB25PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray |
| 72235LB25PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel |
| 72235LB25PFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray |
| 72235LB25PFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel |
| 72235LB25TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray |
| 72235LB25TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel |
| 72235LB25TFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray |
| 72235LB25TFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel |
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- 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 223 KB 7WDXRDKU4E7E-5-41816 Oct 07, 2006
- Application NotePDF 334 KB 7WDXRDKU4E7E-5-37178 May 13, 2006
- Product Change NoticePDF 164 KB 7WDXRDKU4E7E-5-41811 May 11, 2006
- 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
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- Application NotePDF 334 KB 7WDXRDKU4E7E-5-37178 May 13, 2006
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- End Of Life NoticePDF 645 KB 7WDXRDKU4E7E-5-62027 Sep 14, 2017
- Product Change NoticePDF 567 KB 7WDXRDKU4E7E-5-60948 Aug 26, 2016
- Product Change NoticePDF 611 KB 7WDXRDKU4E7E-5-60321 Apr 14, 2016
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Hi Dialog, We developed a dev board of minimum DA14681 system, based on BASIC DevKit. The code we run correctly on BASIC Dev kit, it just simply print "hello world" to COM port periodically. But when I downloaded the image to own designed board, the code only run for a ...
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