Integrated Circuits (ICs)

SN74ALS232BN

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Texas Instruments

16 X 4 ASYNCHRONOUS FIFO MEMORY

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Integrated Circuits (ICs)

SN74ALS232BN

Active

Texas Instruments

16 X 4 ASYNCHRONOUS FIFO MEMORY

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	SN74ALS232BN

Access Time	30 ns
Bus Directional	Uni-Directional
Current - Supply (Max) [Max]	125 mA
Data Rate	40 MHz
Expansion Type	Width
Function	Asynchronous
FWFT Support	False
Memory Size	64
Mounting Type	Through Hole
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	16-DIP
Package / Case [x]	0.3 in
Package / Case [x]	7.62 mm
Programmable Flags Support	False
Retransmit Capability	False
Supplier Device Package	16-PDIP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

74ALS232 Series

16 x 4 asynchronous FIFO memory

Part	Supplier Device Package	Memory Size	Function	Bus Directional	Mounting Type	Expansion Type	Data Rate	Current - Supply (Max) [Max]	Operating Temperature [Max]	Package / Case	Package / Case	Package / Case	Voltage - Supply [Min]	Voltage - Supply [Max]	Access Time	Package / Case [x]	Package / Case [x]	Supplier Device Package [x]	Supplier Device Package [y]
Texas Instruments SN74ALS232BDW	16-SOIC	64	Asynchronous	Uni-Directional	Surface Mount	Width	40 MHz	125 mA	70 °C	16-SOIC	7.5 mm	0.295 "	4.5 V	5.5 V	30 ns
Texas Instruments SN74ALS232BN	16-PDIP	64	Asynchronous	Uni-Directional	Through Hole	Width	40 MHz	125 mA	70 °C	16-DIP			4.5 V	5.5 V	30 ns	0.3 in	7.62 mm
Texas Instruments SN74ALS232BFN	20-PLCC	64	Asynchronous	Uni-Directional	Surface Mount	Width	40 MHz	125 mA	70 °C	20-LCC (J-Lead)			4.5 V	5.5 V	30 ns			9	9
Texas Instruments SN74ALS232BDWR	16-SOIC	64	Asynchronous	Uni-Directional	Surface Mount	Width	40 MHz	125 mA	70 °C	16-SOIC	7.5 mm	0.295 "	4.5 V	5.5 V	30 ns

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 15.84
		6402	$ 15.84
	Tube	75	$ 13.25
Mouser	N/A	75	$ 13.95
		100	$ 13.34
		250	$ 13.19
		500	$ 12.88
Texas Instruments	TUBE	1	$ 16.33
		100	$ 13.31
		250	$ 10.46
		1000	$ 8.88

Description

General part information

74ALS232 Series

This 64-bit memory features high speed and fast fall-through times. It is organized as 16 words by 4 bits.

A first-in, first-out (FIFO) memory is a storage device that allows data to be written into and read from its array at independent data rates. This FIFO is designed to process data at rates up to 40MHz in a bit-parallel format, word by word.

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 by 16 the number of words clocked out. 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.

Documents

Technical documentation and resources