74F38 Quad Two-Input NAND Buffer (Open Collector)
April 1988 Revised September 2000
74F38 Quad Two-Input NAND Buffer (Open Collector)
General Description
This device contains four independent gates, each of which performs the logic NAND function. The open-collector outputs require external pull-up resistors for proper logical operation.
Ordering Code:
Order Number 74F38SC 74F38SJ 74F38PC Package Number M14A M14D N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
IEEE/IEC
Connection Diagram
Unit Loading/Fan Out
U.L. Pin Names An , Bn On
Note 1: OC = Open Collector
Description HIGH/LOW Inputs Outputs 1.0/2.0 OC (Note 1) /106.6
Input IIH/IIL Output IOH/IOL 20 µA/−1.2 mA OC (Note 1) /64 mA
Function Table
Inputs A L L H H
H = HIGH Voltage Level L = LOW Voltage Level
Output B L H L H O H H H L
© 2000 Fairchild Semiconductor Corporation
DS009465
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74F38
Absolute Maximum Ratings(Note 2)
Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias VCCPin Potential to Ground Pin Input Voltage (Note 3) Input Current (Note 3) Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output 3-STATE Output Current Applied to Output in LOW State (Max) twice the rated IOL (mA)
−65°C to +150°C −55°C to +125°C −55°C to +150°C −0.5V to +7.0V −0.5V to +7.0V −30 mA to +5.0 mA
Recommended Operating Conditions
Free Air Ambient Temperature Supply Voltage 0°C to +70°C
+4.5V to +5.5V
−0.5V to VCC −0.5V to +5.5V
Note 2: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Note 3: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol VIH VIL VCD VOL IIH IBVI VID IOD IIL IOHC ICCH ICCL Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Input Leakage Test Output Leakage Circuit Current Input LOW Current Open Collector, Output OFF Leakage Test Power Supply Current Power Supply Current 2.1 26.0 4.75 3.75 −1.2 250 7.0 30.0 5.0 7.0 µA µA V µA mA µA mA mA Max Max 0.0 0.0 Max Min Max Max VIN = 2.7V VIN = 7.0V IID = 1.9 µA All Other Pins Grounded VIOD = 150 mV All Other Pins Grounded VIN = 0.5V VOUT = VCC VO = HIGH VO = LOW 10% VCC Min 2.0 0.8 −1.2 0.55 Typ Max Units V V V V Min Min VCC Conditions Recognized as a HIGH Signal Recognized as a LOW Signal IIN = −18 mA IOL = 64 mA
AC Electrical Characteristics
TA = +25°C Symbol Parameter Min tPLH tPHL Propagation Delay An, Bn to On 6.5 1.5 VCC = +5.0V CL = 50 pF Typ 9.7 2.1 Max 12.5 5.0 TA = 0°C to +70°C VCC = +5.0V CL = 50 pF Min 6.5 1.5 Max 13.0 5.5 ns Units
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74F38
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow Package Number M14A
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74F38
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M14D
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74F38 Quad Two-Input NAND Buffer (Open Collector)
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N14A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 5 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
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