Item Specifications and Additional Information:
Decoder/Demultiplexer Logic ICs
The MC74HC138ADR2 decodes a three-bit Address to one-of-eight
active-low outputs. This IC has three Chip Select inputs, two of them are
active-low and one is active-high to help the demultiplexing,
cascading, and chip-selecting functions. The demultiplexing function
is achieved by using the Address inputs to select the desired
device output; one of the Chip Selects is used as a data input while the
other Chip Selects are held in their active states.
Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS and TTL
- High Noise Immunity Characteristic of CMOS Devices
- Chip Complexity: 100 FETs or 29 Equivalent Gates
Recommended Operating Conditions
DC Supply Voltage (Referenced to GND): 2.0V to 6.0V
DC Input Voltage, Output Voltage (Referenced to GND): 0V to VCC
Input Rise and Fall Time
- VCC = 2.0V: 1000ns max.
- VCC = 4.5V: 500ns max.
- VCC = 6.0V: 400ns max.
DC Electrical Characteristics (Voltages referenced to GND, VCC = 4.5V, Limit -55°C to 25°C):
Minimum High-Level Input Voltage (Vout = 0.1V or VCC-0.1V, |Iout| ≤ 20uA): 3.15V
Maximum Low-Level Input Voltage (Vout = 0.1V or VCC-0.1V, |Iout| ≤ 20uA): 1.35V
Minimum High-Level Output Voltage (Vin = VIH or VIL, |Iout| ≤ 20uA): 4.4V
Maximum Low-Level Output Voltage (Vin = VIH or VIL, |Iout| ≤ 20uA): 0.1V
Maximum Input Leakage Current (VCC = 6.0V, Vin = VCC or GND): ±0.1uA
Maximum Quiescent Supply Current (per pkg)(VCC = 6.0V, Vin = VCC or GND, Iout = 0uA): 4.0uA
AC Characteristics (VCC = 4.5, CL = 50pF, Input tr = tf = 6ns, Limit -55°C to 25°C)
Maximum Propagation Delay, Input A to Output Y: 27ns
Maximum Output Transition Time, Any Output: 15ns
Maximum Input Capacitance: 10pF
Manufactured by: Motorola
Part Number: MC74HC138ADR2
Full Datasheet: Motorola SMT IC MC74HC138ADR2 |
