Document
www.DataSheet4U.com
54F 74F540 54F 74F541 Octal Buffer Line Driver with TRI-STATE Outputs
May 1995
54F 74F540 54F 74F541 Octal Buffer Line Driver with TRI-STATE Outputs
General Description
The ’F540 and ’F541 are similar in function to the ’F240 and ’F244 respectively except that the inputs and outputs are on opposite sides of the package (see Connection Diagrams) This pinout arrangement makes these devices especially useful as output ports for microprocessors allowing ease of layout and greater PC board density
Features
Y Y
TRI-STATE outputs drive bus lines Inputs and outputs opposite side of package allowing easier interface to microprocessors
Commercial 74F540PC
Military
Package Number N20A
Package Description 20-Lead (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line 20-Lead (0 300 Wide) Molded Small Outline JEDEC 20-Lead (0 300 Wide) Molded Small Outline EIAJ 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C 20-Lead (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line 20-Lead (0 300 Wide) Molded Small Outline JEDEC 20-Lead (0 300 Wide) Molded Small Outline EIAJ 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C
54F540DM (Note 2) 74F540SC (Note 1) 74F540SJ (Note 1) 54F540FM (Note 2) 54F540LM (Note 2) 74F541PC 54F541DM (Note 2) 74F541SC (Note 1) 74F541SJ (Note 1) 54F541FM (Note 2) 54F541LM (Note 2)
J20A M20B M20D W20A E20A N20A J20A M20B M20D W20A E20A
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Connection Diagrams
Pin Assignment for DIP SOIC and Flatpak ’F540 Pin Assignment for LCC
TL F 9553 – 2 TL F 9553 – 1
TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation
TL F 9553
RRD-B30M75 Printed in U S A
Connection Diagrams (Continued)
’F541
TL F 9553 – 5 TL F 9553–4
Unit Loading Fan Out
54F 74F Pin Names Description UL HIGH LOW 10 10 10 10 600 106 6 (80) Input IIH IIL Output IOH IOL 20 mA b0 6 mA 20 mA b0 6 mA b 12 mA 64 mA (48 mA)
OE1 OE2 In On On
TRI-STATE Output Enable Input (Active LOW) Inputs Outputs
Truth Table
Inputs OE1 L H X L OE2 L X H L I H X X L Outputs ’F540 L Z Z H ’F541 H Z Z L
H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance
Logic Diagrams
IEEE IEC ’F540 IEEE IEC ’F541
TL F 9553–3
TL F 9553 – 6
2
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias Plastic VCC Pin Potential to Ground Pin
b 65 C to a 150 b 55 C to a 125 b 55 C to a 175 b 55 C to a 150
Recommended Operating Conditions
Free Air Ambient Temperature Military Commercial Supply Voltage Military Commercial
b 55 C to a 125 C 0 C to a 70 C a 4 5V to a 5 5V a 4 5V to a 5 5V
C C C C
b 0 5V to a 7 0V b 0 5V to a 7 0V Input Voltage (Note 2) b 30 mA to a 5 0 mA Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC e 0V) b 0 5V to VCC Standard Output b 0 5V to a 5 5V TRI-STATE Output Current Applied to Output in LOW State (Max) twice the rated IOL (mA)
Note 1 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 2 Either voltage limit or current limit is sufficient to protect inputs
DC Electrical Characteristics
Symbol VIH VIL VCD VOH Parameter Min Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 74F 5% VCC 54F 10% VCC 74F 10% VCC 54F 74F 54F 74F 54F 74F 74F 74F 4 75 3 75
b0 6
54F 74F Typ Max
Units V 08
b1 2
VCC
Conditions Recognized as a HIGH Signal Recognized as a LOW Signal
20
V V Min
IIN e b18 mA IOH IOH IOH IOH IOH
e e e e e b 3 mA b 12 mA b 3 mA b 15 mA b 3 mA
24 20 24 20 27 0 55 0 55 20 0 50 100 70 250 50
V
Min
VOL IIH IBVI ICEX VID IOD IIL IOZH IOZL IOS IZZ
Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current
V mA mA mA V mA mA mA mA mA mA
Min Max Max Max 00 00 Max Max Max Max 0 0V
IOL e 48 mA IOL e 64 mA VIN e 2 7V VIN e 7 0V VOUT e VCC IID e 1 9 mA All Other Pins Grounded VIOD e 150 mV All Other Pins Grounded VIN e 0 5V VOUT e 2 7V VOUT e 0 5V VOUT e 0V VOUT e 5 25V
Output Leakage Current Output Leakage Current Output Short-Circuit Current Bus Drainage Test
b 100
50
b 50 b 225
500
3
DC Electrical Characteristics
Symbol ICCH ICCL ICCZ ICCH ICCL ICCZ Parameter
(Continued) 54F 74F Min Typ 11 53 31 26 55 31 Max 20 75 45 35 75 55 mA mA mA mA mA mA Max Max Max Max Max Max VO e HIGH VO e LOW VO e HIGH Z VO e HIGH VO e LOW VO e HIGH Z Units VCC Conditions
Power Supply Current (’F540) .