40 FIFO 18

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Part	Manufacturer	Memory IC Type	Temperature Grade	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	Cycle Time	No. of Functions	Technology	Terminal Form	Parallel or Serial	Operating Mode	Maximum Supply Current	No. of Words	Nominal Supply Voltage / Vsup (V)	Power Supplies (V)	Memory Width	Package Style (Meter)	Package Equivalence Code	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Output Characteristics	Organization	No. of Words Code	Minimum Operating Temperature	Terminal Finish	Terminal Position	JESD-30 Code	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Maximum Clock Frequency (fCLK)	Width	Qualification	Memory Density	Minimum Supply Voltage (Vsup)	Additional Features	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Output Enable	Length	Maximum Access Time
SN74ALS2238N	Texas Instruments	BI-DIRECTIONAL FIFO	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	25 ns	1	TTL	THROUGH-HOLE	PARALLEL	SYNCHRONOUS	350 mA	64 words	5	5	9	IN-LINE	DIP40,.6	FIFOs	2.54 mm	70 Cel	3-STATE	64X9	64	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm		15.24 mm	Not Qualified	576 bit	4.5 V	BYPASS XCVR		NOT SPECIFIED	NOT SPECIFIED	NO	52.455 mm	29 ns
Z8038B1	STMicroelectronics		COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-PDIP-T40	5.25 V	4.445 mm		15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8038AD6	STMicroelectronics		INDUSTRIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-CDIP-T40	5.25 V			15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
Z8538AD1	STMicroelectronics	BI-DIRECTIONAL FIFO	COMMERCIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-CDIP-T40	5.25 V		6 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
Z8038AD1	STMicroelectronics		COMMERCIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-CDIP-T40	5.25 V			15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
Z8038AB1	STMicroelectronics		COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-PDIP-T40	5.25 V	4.445 mm		15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8538AB1	STMicroelectronics	BI-DIRECTIONAL FIFO	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-PDIP-T40	5.25 V		6 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8038D6	STMicroelectronics		INDUSTRIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-CDIP-T40	5.25 V			15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
Z8538AD6	STMicroelectronics	BI-DIRECTIONAL FIFO	INDUSTRIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-CDIP-T40	5.25 V		6 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
Z8538AB6	STMicroelectronics	BI-DIRECTIONAL FIFO	INDUSTRIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-PDIP-T40	5.25 V		6 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8538B1	STMicroelectronics	BI-DIRECTIONAL FIFO	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-PDIP-T40	5.25 V		4 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8538D1	STMicroelectronics	BI-DIRECTIONAL FIFO	COMMERCIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-CDIP-T40	5.25 V		4 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
Z8538D6	STMicroelectronics	BI-DIRECTIONAL FIFO	INDUSTRIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-CDIP-T40	5.25 V		4 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
Z8538B6	STMicroelectronics	BI-DIRECTIONAL FIFO	INDUSTRIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5	5	8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-PDIP-T40	5.25 V		4 MHz	15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8038B6	STMicroelectronics		INDUSTRIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-PDIP-T40	5.25 V	4.445 mm		15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8038AB6	STMicroelectronics		INDUSTRIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	166.67 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	85 Cel		128X8	128	-40 Cel		DUAL	R-PDIP-T40	5.25 V	4.445 mm		15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES	52.07 mm
Z8038D1	STMicroelectronics		COMMERCIAL	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	250 ns	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		128 words	5		8	IN-LINE			2.54 mm	70 Cel		128X8	128	0 Cel		DUAL	R-CDIP-T40	5.25 V			15.24 mm	Not Qualified	1024 bit	4.75 V	MAIL BOX				YES
UPD42532C-10	Renesas Electronics	BI-DIRECTIONAL FIFO	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO			CMOS	THROUGH-HOLE		ASYNCHRONOUS	80 mA	32768 words			8	IN-LINE	DIP40,.6	FIFOs	2.54 mm	70 Cel		32KX8	32K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T40					Not Qualified	262144 bit			e0					50 ns

FIFO

FIFO, or First-In, First-Out, is a type of digital circuit that is used in computer systems and digital devices to manage the flow of data. A FIFO circuit stores data in a buffer and retrieves the data in the same order in which it was received, with the first data received being the first data to be retrieved.

FIFO circuits are used in many applications where data needs to be stored and retrieved in a specific order, such as in data communication systems, disk drives, and multimedia devices. For example, in a data communication system, a FIFO circuit can be used to store incoming data packets in a buffer and retrieve them in the order in which they were received, ensuring that the data is processed correctly and in a timely manner.

FIFO circuits are typically implemented using a combination of flip-flops, multiplexers, and control logic. The control logic manages the input and output of data to the FIFO buffer and ensures that the data is stored and retrieved in the correct order.

One of the advantages of using a FIFO circuit is that it provides a simple and efficient way to manage the flow of data. FIFO circuits are easy to implement and can handle large amounts of data. They can also be used in conjunction with other types of digital circuits to implement more complex data processing algorithms.