SN74ACT7808 2048 x 9 异步 FIFO 存储器

A FIFO memory is a storage device that allows data to be written into and read from its array at independent data rates. The SN74ACT7808 is a 2048-word by 9-bit FIFO designed for high speed and fast access times. It processes data at rates up to 50 MHz and access times of 15 ns in a bit-parallel format.

Data is written into memory on a low-to-high transition at the load-clock (LDCK) input and is read out on a low-to-high transition at the unload-clock (UNCK) input. The memory is full when the number of words clocked in exceeds the number of words clocked out by 2048. When the memory is full, LDCK signals have no effect on the data residing in memory. When the memory is empty, UNCK signals have no effect

	SN74ACT7808
Depth	2048
Width	9
Fmax(MHz)	50
Sync/Async	A
Voltage Nodes(V)	5
Vcc range(V)	4.5 to 5.5
Output Drive(mA)	-8/16
Rating	Catalog
Technology Family	ACT

SN74ACT7808 特性

• Load Clocks and Unload Clocks Can Be Asynchronous or Coincident
• 2048 Words by 9 Bits
• Low-Power Advanced CMOS Technology
• Fast Access Times of 15 ns With a 50-pF Load
• Programmable Almost-Full/Almost-Empty Flag
• Expansion Logic for Depth Cascading
• Empty, Full, and Half-Full Flags
• Fall-Through Time of 20 ns Typical
• Data Rates up to 50 MHz
• 3-State Outputs
• Package Options Include 44-Pin Plastic Leaded Chip Carrier (FN), 64-Pin Thin Quad Flat (PM), and Reduced-Height 64-Pin Quad Flat (PAG) Packages

SN74ACT7808 芯片订购指南

器件	状态	温度	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
SN74ACT7808-20FN	ACTIVE	0 to 70	15.80 | 1ku	PLCC (FN) | 44	26 | TUBE
SN74ACT7808-20PAG	ACTIVE	0 to 70	15.80 | 1ku	TQFP (PAG) | 64	160 | JEDEC TRAY (10+1)
SN74ACT7808-20PM	OBSOLETE	0 to 70		LQFP (PM) | 64
SN74ACT7808-25FN	ACTIVE	0 to 70	8.43 | 1ku	PLCC (FN) | 44	26 | TUBE
SN74ACT7808-25PAG	ACTIVE	0 to 70	8.43 | 1ku	TQFP (PAG) | 64	160 | JEDEC TRAY (10+1)
SN74ACT7808-25PM	OBSOLETE	0 to 70		LQFP (PM) | 64
SN74ACT7808-30FN	ACTIVE	0 to 70	13.61 | 1ku	PLCC (FN) | 44	26 | TUBE
SN74ACT7808-30PM	OBSOLETE	0 to 70		LQFP (PM) | 64
SN74ACT7808-40FN	ACTIVE	0 to 70	9.22 | 1ku	PLCC (FN) | 44	26 | TUBE
SN74ACT7808-40PAG	ACTIVE	0 to 70	9.22 | 1ku	TQFP (PAG) | 64	160 | JEDEC TRAY (10+1)
SN74ACT7808-40PM	OBSOLETE	0 to 70		LQFP (PM) | 64

SN74ACT7808 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
SN74ACT7808-20FN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7808-20FN	SN74ACT7808-20FN
SN74ACT7808-20PAG	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7808-20PAG	SN74ACT7808-20PAG
SN74ACT7808-25FN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7808-25FN	SN74ACT7808-25FN
SN74ACT7808-25PAG	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7808-25PAG	SN74ACT7808-25PAG
SN74ACT7808-30FN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7808-30FN	SN74ACT7808-30FN
SN74ACT7808-40FN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7808-40FN	SN74ACT7808-40FN
SN74ACT7808-40PAG	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7808-40PAG	SN74ACT7808-40PAG

SN74ACT7808 应用技术支持与电子电路设计开发资源下载

1. SN74ACT7808 数据资料 dataSheet 下载.PDF
2. TI 德州仪器特殊逻辑产品选型与价格 . xls
3. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
4. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
5. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
6. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
7. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
8. Designing With Logic (PDF 186 KB)
9. Live Insertion (PDF 150 KB)
10. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
11. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
12. HiRel Unitrode Power Management Brochure (PDF 206 KB)
13. LOGIC Pocket Data Book (PDF 6001 KB)
14. HiRel Unitrode Power Management Brochure (PDF 206 KB)
15. Logic Cross-Reference (PDF 2938 KB)