HIGH SPEED (TYP.) POWER DISSIPATION (MAX.) OUTPUT DRIVE CAPABILITY LST
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M54/74HC125 M54/74HC126
HIGH SPEED (TYP.) POWER DISSIPATION (MAX.) OUTPUT DRIVE CAPABILITY LSTTL LOADS BALANCED PROPAGATION DELAYS tPLH tPHL SYMMETRICAL OUTPUT IMPEDANCE (MIN.) HIGH NOISE IMMUNITY VNIH VNIL (MIN.) WIDE OPERATING VOLTAGE RANGE (OPR) FUNCTION COMPATIBLE WITH 54/74LS125/126
(Plastic Package)
(Ceramic Package)
(Micro Package)
(Chip Carrier)
ORDER CODES M54HCXXXF1R M74HCXXXM1R M74HCXXXB1R M74HCXXXC1R
DESCRIPTION M54/74HC125/126 high speed CMOS QUAD BUFFER (3-STATE) FABRICATED SILICON GATE C2MOS technology. They have same high speed performance LSTTL combined with true CMOS power consumption. These devices require same 3-STATE control input taken high make output into high impedance state. inputs equipped with protection circuits against static discharge transient excess voltage. INPUT OUTPUT EQUIVALENT CIRCUIT
HC126
CONNECTIONS (top view)
HC125
Internal Connection
September 1993
1/11
M54/M74HC125/126
CHIP CARRIER
HC125 HC126
TRUTH TABLE (HC125)
TRUTH TABLE (HC126)
DESCRIPTION (HC125)
SYMBOL NAME FUNCTION Output Enable Input Data Inputs Data Outputs Ground (0V) Positive Supply Voltage
DESCRIPTION (HC126)
SYMBOL NAME FUNCTION Output Enable Input Data Inputs Data Outputs Ground (0V) Positive Supply Voltage
LOGIC SYMBOLS
HC125 HC126
2/11
M54/M74HC125/126
CIRCUIT DIAGRAM
HC125 HC126
ABSOLUTE MAXIMUM RATINGS
Symbol IGND Tstg Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Source Sink Current Output Ground Current Power Dissipation Storage Temperature Lead Temperature sec) Parameter Value -0.5 -0.5 -0.5 +150 Unit
Absolute Maximum Ratings those values beyond which damage device occur. Functional operation under these condition isnotimplied. derate 10mW/oC:
RECOMMENDED OPERATING CONDITIONS
Symbol Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise Fall Time Parameter Value +125 1000 Unit
3/11
M54/M74HC125/126
SPECIFICATIONS
Test Conditions Symbol Parameter High Level Output Voltage Level Output Voltage Input Leakage Current State Output Off-state Current Quiescent Supply Current IO=-20 IO=-6.0 IO=-7.8 4.18 5.68 4.31 0.17 0.18 0.26 0.26 ±0.1 ±0.5 54HC 74HC Min. Typ. Max. 3.15 1.35 4.13 5.63 0.33 0.33 Value 74HC 54HC Min. Max. Min. Max. 3.15 1.35 4.10 5.60 0.40 0.40 3.15 1.35 Unit
High Level Input Voltage Level Input Voltage
4/11
M54/M74HC125/126
ELECTRICAL CHARACTERISTICS (Input
Test Conditions Symbol Parameter (pF) 54HC 74HC Min. Typ. Max. Value 74HC 54HC Min. Max. Min. Max.
Unit
tTLH tTHL tPLH tPHL
Output Transition Time Propagation Delay Time
tPZL tPZH
State Output Enable Time
tPLZ tPHZ
State Output Disable Time Input Capacitance Power Dissipation Capacitance
defined value IC's internal equivalent capacitance which calculated from operating current consumption without load. (Refer Test Circuit). Average operting current obtained following equation. ICC(opr)
SWITCHING CHARACTERISTICS TEST WAVEFORM
HC125
HC126
5/11
M54/M74HC125/126
TEST CIRCUIT (Opr.)
HC125
OTHER INPUTS CONNECTED LINE LINE
HC126
OTHER INPUTS CONNECTED LINE LINE
6/11
M54/M74HC125/126
Plastic DIP14 MECHANICAL DATA
MIN. 1.27 2.54 0.050 2.54 15.24 0.130 0.100 0.51 1.39 0.25 0.335 0.100 0.600 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.055 0.020 0.010 0.787 0.065 inch TYP. MAX.
DIM.
P001A
7/11
M54/M74HC125/126
Ceramic DIP14/1 MECHANICAL DATA
MIN. 2.29 1.17 0.22 1.52 0.38 15.24 2.79 0.55 1.52 0.31 2.54 10.3 8.05 5.08 0.307 0.090 0.016 0.046 0.009 0.060 0.015 0.600 0.110 0.022 0.060 0.012 0.100 0.406 0.317 0.200 TYP. MAX. 0.130 MIN. inch TYP. MAX. 0.787 0.276
DIM.
P053C
8/11
M54/M74HC125/126
SO14 MECHANICAL DATA
DIM. MIN. 8.55 1.27 7.62 1.27 0.68 (max.) 0.149 0.181 0.019 8.75 0.35 0.19 (typ.) 0.336 0.228 0.050 0.300 0.157 0.208 0.050 0.026 0.344 0.244 TYP. MAX. 1.75 1.65 0.46 0.25 0.013 0.007 0.019 0.003 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010
P013G
9/11
M54/M74HC125/126
PLCC20 MECHANICAL DATA
MIN. 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 2.54 0.56 8.38 0.290 0.050 0.200 0.015 0.004 TYP. MAX. 10.03 9.04 4.57 MIN. 0.385 0.350 0.165 0.100 0.022 0.330 inch TYP. MAX. 0.395 0.356 0.180
DIM.
P027A
10/11
M54/M74HC125/126
Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsability consequences such information infringement patents other rights third parties which results from use. license granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized ascritical components life support devices systems without express written approval SGS-THOMSON Microelectonics. 1994 SGS-THOMSON Microelectronics Rights Reserved SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A
11/11
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