Name: 8-Bit Addressable Latch/1-of-8 Decoder CMOS Logic Level Shifter
Brand: 8-Bit Addressable Latch/1-of-8 Decoder CMOS Logic Level Shifter
SKU: MC74VHC259

8-Bit Addressable Latch/1-of-8 Decoder CMOS Logic Level Shifter

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Overview

The MC74VHC259 is an 8-bit Addressable Latch fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.

The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output.

The VHC259 is designed for general purpose storage applications in digital systems. The device has four modes of operation as shown in the mode selection table.. In the addressable latch mode, the data on Data In is written into the addressed latch. The addressed latch follows the data input with all non-addressed latches remaining in their previous states. In the memory mode, all latches remain in their previous state and are unaffected by the Data or Address inputs. In the one-of-eight decoding or demultiplexing mode, the addressed output follows the state of Data In with all other outputs in the LOW state. In the Reset mode, all outputs are LOW and unaffected by the address and data inputs. When operating the VHC259 as an addressable latch, changing more than one bit of the address could impose a transient wrong address. Therefore, this should only be done while in the memory mode.

The MC74VHC259 input structure provides protection when volatges up to 7 V are applied, regardless of the supply voltage. This allows the MC74VHC259 to be used to interface 5 V circuits to 3 V circuits.

High Speed: t_PD = 7.6 ns (Typ) at V_CC = 5 V
Low Power Dissipation: I_CC = 2 mA (Max) at T_A = 25°C
High Noise Immunity: V_NIH = V_NIL = 28% V CC
CMOS-Compatible Outputs: V_OH > 0.8 V_CC ; V_OL < 0.1 V_CC @Load
Power Down Protection Provided on Inputs and Outputs
Balanced Propagation Delays
Pin and Function Compatible with Other Standard Logic Families
Latchup Performance Exceeds 300 mA
ESD Performance: HBM > 2000 V
These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.

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Reference Price

MC74VHC259DG

Obsolete

SOIC-16

751B-05

260

TUBE

Latch

5.5

Price N/A

MC74VHC259DR2G

Active

SOIC-16

751B-05

260

REEL

2500

Latch

5.5

$0.3337

MC74VHC259DTG

Last Shipments

TSSOP-16

948F-01

260

TUBE

Latch

5.5

Price N/A

MC74VHC259DTR2G

Active

TSSOP-16

948F-01

260

REEL

2500

Latch

5.5

$0.2627

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920154574

Latches & Registers | MC74VHC259

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