MM74HC126

` Typical propagation delay: 13 ns
` Wide operating voltage range: 26V
` Low input current: 1 mA maximum
` Low quiescent current: 80 mA maximum (74HC)
`Fanout of 15 LS-TTL loads

Supply Voltage (V_CC)                                                    -0.5 to +7.0V
DC Input Voltage (V_IN)                                          -1.5 to VCC +1.5V
DC Output Voltage (V_OUT)                                     -0.5 to VCC +0.5V
Clamp Diode Current (I_IK, I_OK)                                             ±20 mA
DC Output Current, per pin (I_OUT)                                        ±35 mA
DC VCC or GND Current, per pin
(I_CC)                                                                                      ±70 mA
Storage Temperature Range (T_STG)                           -65to +150
Power Dissipation (P_D)
(Note 3)                                                                                 600 mW
S.O. Package only                                                                  500 mW
Lead Temperature (T_L)
(Soldering 10 seconds)                                                              260                                                           

                                                         Min               Max               Units
Supply Voltage (V_CC)                          2                     6                    V
DC Input or Output Voltage 0 V_CC V
(V_IN, V_OUT)
Operating Temperature Range (T_A)    -40                +85                 
Input Rise or Fall Times (t_r, t_f)
V_CC = 2.0V                                                                1000              ns
V_CC = 4.5V                                                                 500               ns
V_CC = 6.0V                                                                 400               ns

Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur.
Note 2: Unless otherwise specified all voltages are referenced to ground.
Note 3: Power Dissipation temperature derating - plastic "N" package: - 12 mW/from 65 to 85.

The MM74HC125 and MM74HC126 are general purpose 3-STATE high speed non-inverting buffers utilizing advanced silicon-gate CMOS technology. MM74HC126 have high drive current outputs which enable high speed operation even when driving large bus capacitances. These circuits possess the low power dissipation of CMOS circuitry, yet have speeds comparable to low power Schottky TTL circuits. Both circuits of MM74HC126 are capable of driving up to 15 low power Schottky inputs.

The MM74HC125 require the 3-STATE control input C to be taken high to put the output into the high impedance condition, whereas the MM74HC126 require the control input to be low to put the output into high impedance.

All inputs of MM74HC126 are protected from damage due to static discharge by diodes to V_CC and ground.