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LH540245U-35中文资料PDF规格书
LH540245U-35规格书详情
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 IDT72235B/45B 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 LH540235/45 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 IDT72235B/45B 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, 2048 × 18 or 4096 × 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
• 16 mA-IOL High-Drive Three-State Outputs
• 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; Even-Smaller 64-Pin TQFP Package
产品属性
- 型号:
LH540245U-35
- 制造商:
SHARP
- 制造商全称:
Sharp Electrionic Components
- 功能描述:
2048 x 18/4096 x 18 Synchronous FIFOs
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
SHARP |
23+ |
QFP128 |
47 |
询价 | |||
SHARP/夏普 |
22+ |
QFP |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
询价 | ||
SHARP |
22+ |
PLCC |
680 |
原装现货热卖中,提供一站式真芯服务 |
询价 | ||
SHARP/夏普 |
23+ |
QFP |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
SHARP |
23+ |
DIP |
9526 |
询价 | |||
原厂 |
2023+ |
TSOP |
50000 |
原装现货 |
询价 | ||
SHRP |
22+ |
QFP |
2000 |
原装正品现货 |
询价 | ||
TI |
TSSOP24 |
68900 |
原包原标签100%进口原装常备现货! |
询价 | |||
06/07+ |
353 |
询价 | |||||
SHARP |
21+ |
QFP128 |
35200 |
一级代理/放心采购 |
询价 |