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LH540215数据手册规格书PDF详情
FUNCTIONAL DESCRIPTION
NOTE: Throughout this data sheet, a BOLD ITALIC type font is used for all references to Enhanced Operating Mode features which do not function in IDT-Compatible Operating Mode; and also for all references to the retransmit facility (which is not an IDT72215B/25B FIFO feature), even though it may be used – subject to some restrictions – in either of these two operating modes. Thus, readers interested only in using the LH540215/25 FIFOs in IDT-Compatible Operating Mode may skip over BOLD ITALIC sections, if they wish.
FEATURES
• Fast Cycle Times: 20/25/35 ns
• Pin-Compatible Drop-In Replacements for IDT72215B/25B FIFOs
• Choice of IDT-Compatible or Enhanced Operating Mode; Selected by an Input Control Signal
• Device Comes Up into One of Two Known Default States at Reset Depending on the State of the EMODE Control Input: Programming is Allowed, but is not Required
• Internal Memory Array Architecture Based on CMOS Dual-Port SRAM Technology, 512 × 18 or 1024 × 18
• ‘Synchronous’ Enable-Plus-Clock Control at Both Input Port and Output Port
• Independently-Synchronized Operation of Input Port and Output Port
• Control Inputs Sampled on Rising Clock Edge
• Most Control Signals Assertive-LOW for Noise Immunity
• May be Cascaded for Increased Depth, or Paralleled for Increased Width
• Five Status Flags: Full, Almost-Full, Half-Full, Almost-Empty, and Empty; ‘Almost’ Flags are Programmable
• In Enhanced Operating Mode, Almost-Full, Half-Full, and Almost-Empty Flags can be Made Completely Synchronous
• In Enhanced Operating Mode, Duplicate Enables for Interlocked Paralleled FIFO Operation, for 36-Bit Data Width, when Selected and Appropriately Connected
• In Enhanced Operating Mode, Disabling Three-State Outputs May be Made to Suppress Reading
• Data Retransmit Function
• TTL/CMOS-Compatible I/O
• Space-Saving 68-Pin PLCC Package, and 64-Pin TQFP Package
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
SHARP |
PLCC |
17432 |
提供BOM表配单只做原装货值得信赖 |
||||
SHARP |
9430+ |
PLCC |
13 |
刚到现货加微13425146986 |
|||
SHARP/夏普 |
23+ |
PLCC |
90000 |
只做原厂渠道价格优势可提供技术支持 |
|||
SHARP/夏普 |
23+ |
PLCC |
89630 |
当天发货全新原装现货 |
|||
sharp |
22+ |
500000 |
行业低价,代理渠道 |
||||
SHARP |
23+ |
QFP128 |
47 |
||||
SHARP |
15+ |
QFP |
14 |
全新原装正品现货 |
|||
SHARP |
2023+ |
QFP128 |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
|||
SHARP |
21+ |
QFP128 |
35200 |
一级代理/放心采购 |
|||
Sharp |
93 |
3 |
公司优势库存 热卖中!! |
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