MC74LCX138
MC74LCX138 is Low-Voltage CMOS 1-of-8 Decoder/Demultiplexer manufactured by Motorola Semiconductor.
features three Enable inputs, two active- LOW (E1, E2) and one active- HIGH (E3). All outputs will be HIGH unless E1 and E2 are LOW, and E3 is HIGH. This multiple enabled function allows easy parallel expansion of the device to a 1- of- 32 (5 lines to 32 lines) decoder with just four LCX138 devices and one inverter (See Figure 1). The LCX138 can be used as an 8- output demultiplexer by using one of the active- LOW Enable inputs as the data input and the other Enable inputs as strobes. The Enable inputs which are not used must be permanently tied to their appropriate active- HIGH or active- LOW state. Current drive capability is 24m A at the outputs.
LOW- VOLTAGE CMOS DECODER/DEMULTIPLEXER
16 1
D SUFFIX PLASTIC SOIC CASE 751B- 05
16 1
M SUFFIX PLASTIC SOIC EIAJ CASE 966- 01
- Designed for 2.7 to 3.6V VCC Operation
- 5V Tolerant Inputs
- Interface Capability With 5V TTL Logic
- LVTTL patible
- LVCMOS patible
- 24m A Balanced Output Sink and Source Capability
- Near Zero Static Supply Current (10µA) Substantially Reduces System
Power Requirements
16 1
SD SUFFIX PLASTIC SSOP CASE 940B- 03
16 1
DT SUFFIX PLASTIC TSSOP CASE 948F- 01
- Latchup Performance Exceeds 500m A
- ESD Performance: Human Body Model >2000V; Machine Model >200V
Pinout: 16- Lead Plastic Package (Top View)
VCC 16 O0 15 O1 14 O2 13 O3 12 O4 11 O5 10 O6 9
PIN NAMES
Pins A0- A2 E1- E2 E3 O0- O7 Function Address Inputs Enable Inputs Enable Input Outputs
1 A0
2 A1
3 A2
4 E1
5 E2
6 E3
7 O7
8 GND
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© Motorola, Inc. 1996
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LOGIC...
