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IN74AC299

Integral
Part Number IN74AC299
Manufacturer Integral
Description 8-Bit Bidirectional Universal Shift Register with Parallel I/O High-Speed Silicon-Gate CMOS
Published Oct 22, 2005
Detailed Description TECHNICAL DATA IN74AC299 8-Bit Bidirectional Universal Shift Register with Parallel I/O High-Speed Silicon-Gate CMOS T...
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IN74AC299
IN74AC299

Overview
TECHNICAL DATA IN74AC299 8-Bit Bidirectional Universal Shift Register with Parallel I/O High-Speed Silicon-Gate CMOS The IN74AC299 is identical in pinout to the LS/ALS299, HC/HCT299.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALS outputs.
The IN74AC299 features a multiplexed parallel input/output data port to achieve full 8-bit handling in a 20 pin package.
Due to the large output drive capability and the 3-state feature, this device is ideally suited for interface with bus lines in a bus-oriented system.
Two Mode-Select inputs and two Output Enable inputs are used to choose the mode of operation as listed in the Function Table.
Synchronous parallel loading is accomplished by taking both ModeSelect lines, S1 and S2, high.
This places the outputs in the highimpedance state, which permits data applied to the data port to be clocked into the register.
Reading out of the register can be accomplished when the outputs are enabled.
The active-low asynchronous Reset overrides all other inputs.
• Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2.
0 to 6.
0 V • Low Input Current: 1.
0 µA; 0.
1 µA @ 25°C • High Noise Immunity Characteristic of CMOS Devices • Outputs Source/Sink 24 mA ORDERING INFORMATION IN74AC299N Plastic IN74AC299DW SOIC TA = -40° to 85° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM PIN 20=VCC PIN 10 = GND 386 IN74AC299 MAXIMUM RATINGS* Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL * Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) Value -0.
5 to +7.
0 -0.
5 to VCC +0.
5 -0.
5 to VCC +0.
5 ±20 ±50 ±50 750 500 -65 to +150 260 Unit V V ...


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