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Part: SL74HC374
Category:
Logic
-> Buffers/Inverters
-> 3-State
Description: Octal 3-state Noninverting D Flip-flop
Company: System Logic Semiconductor
Datasheet: Download SL74HC374 datasheet File size : 170 kB
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Datasheet text preview:
SL74HC374
Octal 3-State Noninverting D Flip-Flop
High-Performance Silicon-Gate CMOS
The SL74HC374 is identical in pinout to the LS/ALS374. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. Data meeting the setup and hold time is clocked to the outputs with the rising edge of the Clock. The Output Enable input does not affect the states of the flip-flops, but when Output Enable is high, the outputs are forced to the high-impedance state; thus, data may be stored even when the outputs are not enabled. · Outputs Directly Interface to CMOS, NMOS, and TTL · Operating Voltage Range: 2.0 to 6.0 V · Low Input Current: 1.0 µA · High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION SL74HC374N Plastic SL74HC374D SOIC TA = -55° to 125° C for all packages
PIN ASSIGNMENT LOGIC DIAGRAM
FUNCTION TABLE
PIN 20=VCC PIN 10 = GND Inputs Output Enable L L L H L,H, X Clock D H L X X Output Q H L no change Z
X = don't care Z = high impedance
SLS
System Logic Semiconductor
SL74HC374
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 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 -1.5 to VCC +1.5 -0.5 to VCC +0.5 ±20 ±35 ±75 750 500 -65 to +150 260
Unit V V V mA mA mA mW °C °C
Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C SOIC Package: : - 7 mW/°C from 65° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VIN, VOUT TA tr, t f Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) Operating Temperature, All Package Types Input Rise and Fall Time (Figure 1) VCC =2.0 V VCC =4.5 V VCC =6.0 V Min 2.0 0 -55 0 0 0 Max 6.0 VCC +125 1000 500 400 Unit V V °C ns
This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND(VIN or VOUT)VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V C). C Unused outputs must be left open.
SLS
System Logic Semiconductor
SL74HC374
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
VCC Symbol Parameter Test Conditions V Guaranteed Limit 25 °C to -55°C 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.98 5.48 0.1 0.1 0.1 0.26 0.26 ±0.1 ±0.5 85 °C 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 ±1.0 ±5.0 125 °C 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.4 0.4 ±1.0 ±10 µA µA V Unit
VIH
Minimum High-Level Input Voltage Maximum Low -Level Input Voltage Minimum High-Level Output Voltage
VOUT=0.1 V or VCC-0.1 V IOUT 20 µA VOUT=0.1 V or VCC-0.1 V IOUT 20 µA VIN=VIH or VIL IOUT 20 µA VIN=VIH or VIL IOUT 6.0 mA IOUT 7.8 mA
2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 6.0 6.0
V
VIL
V
VOH
V
VOL
Maximum Low-Level Output Voltage
VIN= VIL or VIH IOUT 20 µA VIN= VIL or VIH IOUT 6.0 mA IOUT 7.8 mA
IIN IOZ
Maximum Input Leakage Current Maximum Three State Leakage Current
VIN=VCC or GND Output in High-Impedance State VIN =VIH or VIL VOUT= VCC or GND VIN=VCC or GND IOUT=0µA
ICC
Maximum Quiescent Supply Current (per Package)
6.0
4.0
40
160
µA
SLS
System Logic Semiconductor
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