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SN74ACT7802 1024 x 18 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 SN74ACT7802 is a 1024-word by 18-bit FIFO for high-speed applications. It processes data in a bit-parallel format at rates up to 40 MHz and access times of 30 ns.

Data is written into the FIFO memory on a low-to-high transition on the load-clock (LDCK) input and is read out on a low-to-high transition on the unload-clock (UNCK) input. The memory is full when the number of words clocked in exceeds by 1024 the number of words clocked out. When the memory is full, LDCK has no effect on the data in the memory; when the memory is empty, UNCK has no effect.

A low level on the reset (RESET\) input resets the FIFO internal clock stack pointers and sets full (FULL\) high, almost full/almost empty (AF/AE) high, half full (HF) low, and empty (EMPTY\) low

	SN74ACT7802
Depth	1024
Width	18
Fmax(MHz)	40
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

SN74ACT7802 特性

• Member of the Texas Instruments WidebusTM Family
• Low-Power Advanced CMOS Technology
• Load and Unload Clocks Can Be Asynchronous or Coincident
• 1024 Words × 18 Bits
• Programmable Almost-Full/Almost-Empty Flag
• Empty, Full, and Half-Full Flags
• Fast Access Times of 30 ns With a 50-pF Load
• Fall-Through Time Is 20 ns Typical
• Data Rates up to 40 MHz
• High-Output Drive for Direct Bus Interface
• 3-State Outputs
• Package Options Include 68-Pin (FN) and 80-Pin Thin Quad Flat (PN) Packages

SN74ACT7802 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
1M7802-60PNG4	ACTIVE	0 to 70	14.96 | 1ku	LQFP (PN) | 80	119 | JEDEC TRAY (10+1)
SN74ACT7802-25FN	ACTIVE	0 to 70	16.28 | 1ku	PLCC (FN) | 68	18 | TUBE
SN74ACT7802-25PN	ACTIVE	0 to 70	8.43 | 1ku	LQFP (PN) | 80	119 | JEDEC TRAY (10+1)
SN74ACT7802-40FN	ACTIVE	0 to 70	9.22 | 1ku	PLCC (FN) | 68	18 | TUBE
SN74ACT7802-40PN	ACTIVE	0 to 70	9.22 | 1ku	LQFP (PN) | 80	119 | JEDEC TRAY (10+1)
SN74ACT7802-60PN	ACTIVE	0 to 70	14.96 | 1ku	LQFP (PN) | 80	119 | JEDEC TRAY (10+1)

SN74ACT7802 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
1M7802-60PNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	1M7802-60PNG4	1M7802-60PNG4
SN74ACT7802-25FN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7802-25FN	SN74ACT7802-25FN
SN74ACT7802-25PN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7802-25PN	SN74ACT7802-25PN
SN74ACT7802-40FN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7802-40FN	SN74ACT7802-40FN
SN74ACT7802-40PN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7802-40PN	SN74ACT7802-40PN
SN74ACT7802-60PN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	SN74ACT7802-60PN	SN74ACT7802-60PN

SN74ACT7802 应用技术支持与电子电路设计开发资源下载

1. SN74ACT7802 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)