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M54 / 74HC125 M54 / 74HC126

B1R (Plastic Package)

M54 / 74HC125 M54 / 74HC126
QUAD BUS BUFFERS (3-STATE)
B1R (Plastic Package)
F1R (Ceramic Package)
M1R (Micro Package)
C1R (Chip Carrier)
ORDER CODES : M54HCXXXF1R M74HCXXXM1R M74HCXXXB1R M74HCXXXC1R
DESCRIPTION The M54 / 74HC125 / 126 are high speed CMOS QUAD BUS BUFFER (3-STATE) FABRICATED IN SILICON GATE C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. These devices require the same 3-STATE control input G to be taken high to make the output go into the high impedance state. All inputs are equipped with protection circuits against static discharge and transient excess voltage. INPUT AND OUTPUT EQUIVALENT CIRCUIT
HC126
PIN CONNECTIONS (top view)
HC125
September 1993
M54 / M74HC125 / 126
CHIP CARRIER
HC125 HC126
TRUTH TABLE (HC125)
TRUTH TABLE (HC126)
PIN DESCRIPTION (HC125)
PIN No 1, 4, 10, 13 2, 5, 9, 12 3, 6, 8, 11 7 14 SYMBOL G1 to G4 A1 to A4 Y1 to Y4 GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Ground (0V) Positive Supply Voltage
PIN DESCRIPTION (HC126)
PIN No 1, 4, 10, 13 2, 5, 9, 12 3, 6, 8, 11 7 14 SYMBOL G1 to G4 A1 to A4 Y1 to Y4 GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Ground (0V) Positive Supply Voltage
IEC LOGIC SYMBOLS
HC125 HC126
M54 / M74HC125 / 126
CIRCUIT DIAGRAM
HC125 HC126
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied. () 500 mW: 65 oC derate to 300 mW by 10mW / oC: 65 oC to 85 oC
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO Top tr, tf Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise and Fall Time Parameter Value 2 to 6 0 to VCC 0 to VCC -55 to +125 -40 to +85 0 to 1000 0 to 500 0 to 400 Unit V V V C C ns
M54 / M74HC125 / 126
DC SPECIFICATIONS
High Level Input Voltage Low Level Input Voltage
M54 / M74HC125 / 126
tTLH tTHL tPLH tPHL
Output Transition Time Propagation Delay Time
tPZL tPZH
3 State Output Enable Time
tPLZ tPHZ CIN CPD ()
3 State Output Disable Time Input Capacitance Power Dissipation Capacitance
SWITCHING CHARACTERISTICS TEST WAVEFORM
HC125
HC126
M54 / M74HC125 / 126
TEST CIRCUIT ICC (Opr.)
HC125
THE OTHER INPUTS ARE CONNECTED TO VCC LINE OR GND LINE
HC126
THE OTHER INPUTS ARE CONNECTED TO VCC LINE OR GND LINE
M54 / M74HC125 / 126
Plastic DIP14 MECHANICAL DATA
mm MIN. a1 B b b1 D E e e3 F I L Z 1.27 3.3 2.54 0.050 8.5 2.54 15.24 7.1 5.1 0.130 0.100 0.51 1.39 0.5 0.25 20 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.
P001A
M54 / M74HC125 / 126
Ceramic DIP14 / 1 MECHANICAL DATA
mm MIN. A B D E e3 F G H L M N P Q 7.8 2.29 0.4 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 3.3 0.015 0.600 0.110 0.022 0.060 0.012 0.100 0.406 0.317 0.200 TYP. MAX. 20 7.0 0.130 MIN. inch TYP. MAX. 0.787 0.276
P053C
M54 / M74HC125 / 126
SO14 MECHANICAL DATA
DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 8.55 5.8 1.27 7.62 4.0 5.3 1.27 0.68 8° (max.) 0.149 0.181 0.019 8.75 6.2 0.35 0.19 0.5 45° (typ.) 0.336 0.228 0.050 0.300 0.157 0.208 0.050 0.026 0.344 0.244 0.1 mm TYP. MAX. 1.75 0.2 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
M54 / M74HC125 / 126
PLCC20 MECHANICAL DATA
mm MIN. A B D d1 d2 E e e3 F G M M1 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 4.2 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
P027A
M54 / M74HC125 / 126