SN74LS299N

Counter Type :
Packaging : Tube
Number of Circuits : 2
Logic Family : 74LS
Logic Type : Bipolar
Maximum Operating Temperature : + 70 C
Minimum Operating Temperature : 0 C
Output Type : 3-State
Counting Sequence : Serial/Parallel to Serial/Parallel
Package / Case : PDIP-20
Number of Input Lines : 2 / 2
Propagation Delay Time : 39 ns


Description

The SN74LS299N is designed as an 8-bit universal shift/storage register with 3-state outputs. Four modes of operation are possible: hold (store), shift left, shift right and load data.

SN74LS299N has six features. (1)Common I/O for reduced pin count. (2)Four operation modes: shift left, shift right, load and store. (3)Separate shift right serial input and shift left serial input for easy cascading. (4)3-state outputs for bus oriented applications. (5)Input clamp diodes limit high-speed termination effects. (6)ESD is larger than 3500 volts. Those are all the main features.

Some guaranteed operating ranges of SN74LS299N have been concluded into several points as follow. (1)Its supply voltage range would be min 4.75V and typ 5.0V and max 5.25V. (2)Its operating ambient temperature range would be min 0°C and typ 25°C and max 70°C. (3)Its output current high level would be max -0.4mA. (4)Its output current low level would be max 8mA.

Also some DC characteristics of SN74LS299N are concluded as follow. (1)Its input high voltage would be min 2.0V with conditions of guaranteed input high voltage for all inputs. (2)Its input low voltage would be max 0.8V with conditions of guaranteed input low voltage for all inputs. (3)Its input clamp diode voltage would be typ -0.65V and max -1.5V with condition of Vcc=min, Iin=-18mA. (4)Its output high voltage would be min 2.4V and typ 3.1V. (5)Its output low voltage would be typ 0.25V and max 0.4V with condition of Iol=4mA. (6)Its input high current would be max 20uA with condition of Vcc=max and Vin=2.7V and it would be max 0.1mA with condition of Vcc=max and Vin=7.0V. (7)Its input low current would be max -0.4mA. (8)Its short circuit current would be min -20mA and max -100mA with condition of Vcc=max. (9)Its power supply current would be max 53mA with condition of Vcc=max.

And some AC characteristics of SN74LS299N are concluded into several points as follow. (1)Its maximum clock frequency would be min 25MHz and typ 35MHz. (2)Its propagation delay, clock to Q0 to Q7 would be typ 26ns and max 39ns. (3)Its propagation delay clear to Q0 or Q7 would be typ 27ns and max 40ns. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!

Parameters:

Technical/Catalog Information	SN74LS299N
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Logic Type	Register, Multiplexed
Function	Universal
Number of Elements	1 - Single
Number of Bits per Element	8
Output Type	Standard
Voltage - Supply	4.75 V ~ 5.25 V
Mounting Type	Through Hole
Package / Case	20-DIP (300 mil)
Packaging	Tube
Operating Temperature	0°C ~ 70°C
Drawing Number	296; 4040049; N; 14, 16, 18, 20
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SN74LS299N SN74LS299N 296 3692 5 ND 29636925ND 296-3692-5