Texas Instruments CD54HC237F3A

Manufacturer No:

CD54HC237F3A

Manufacturer:

Texas Instruments

Package:

Description:

High Speed CMOS Logic 3-to-8 Line Decoder Demutiplexer with Address Latches

Quantity:

In Stock :6832

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CD54HC237F3A Information

Texas Instruments CD54HC237F3A technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments CD54HC237F3A.

Type
Parameter

Technology family
HC

Number of channels
1

Operating temperature range (°C)
-55 to 125

Rating
Military

Supply current (max) (µA)
160

Package
CDIP (J)

Pins
16

Size
135.3552 mm² 19.56 x 6.92

REACH Status
Affected

RoHS Status
Non-RoHS Compliant

Type
Parameter

Download datasheets and manufacturer documentation for Texas Instruments CD54HC237F3A.

The CD74HC137, CD74HCT137, ’HC237, and CD74HCT237 are high speed silicon gate CMOS decoders well suited to memory address decoding or data routing applications. Both circuits feature low power consumption usually associated with CMOS circuitry, yet have speeds comparable to low power Schottky TTL logic.

Both circuits have three binary select inputs (A0, A1 and A2) that can be latched by an active High Latch Enable (LE) signal to isolate the outputs from select-input changes. A "Low" LE makes the output transparent to the input and the circuit functions as a one-of-eight decoder. Two Output Enable inputs (OE\₁ and OE₀) are provided to simplify cascading and to facilitate demultiplexing. The demultiplexing function is accomplished by using the A₀, A₁, A₂ inputs to select the desired output and using one of the other Output Enable inputs as the data input while holding the other Output Enable input in its active state. In the CD74HC137 and CD74HCT137 the selected output is a "Low"; in the ’HC237 and CD74HCT237 the selected output is a "High".

Select One of Eight Data Outputs
- Active Low for CD74HC137 and CD74HCT137
- Active High for ’HC237 and CD74HCT237
I/O Port or Memory Selector
Two Enable Inputs to Simplify Cascading
Typical Propagation Delay of 13ns at V_CC = 5V, 15pF, T_A = 25°C (CD74HC237)
Fanout (Over Temperature Range)
- Standard Outputs. . . . 10 LSTTL Loads
- Bus Driver Outputs. . . . 15 LSTTL Loads
Wide Operating Temperature Range . . . –55°C to 125°C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: N_IL = 30%, N_IH = 30%, of V_CC at V_CC = 5V
HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, V_IL = 0.8V (Max), V_IH = 2V (Min)
- CMOS Input Compatibility, I_l 1µA at V_OL, V_OH