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General description

The LVT2952 is a high-performance BiCMOS product designed for VCC operation at 3.3 V.

This device combines low static and dynamic power dissipation with high speed and high output drive.

The 74LVT2952 device is an 8-bit registered transceiver. Two 8-bit back-to-back registers store data flowing in both directions between two bidirectional buses.

Data applied to the inputs is entered and stored on the rising edge of the Clock (CPXX) provided that the Clock Enable (CEXX) is LOW. The data is then present at the 3-State output buffers, but is only accessible when the Output Enable (OEXX) is LOW. Data flow from A inputs to B outputs is the same as for B inputs to A outputs.

Features

  • 8-bit registered transceiver
  • Independent registers for A and B buses
  • Output capability: +64 mA/?-32 mA
  • TTL input and output switching levels
  • Input and output interface capability to systems at 5 V supply
  • Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs
  • Live insertion/extraction permitted
  • No bus current loading when output is tied to 5 V bus
  • Power-up reset
  • Power-up 3-State
  • Latch-up protection exceeds 500 mA per JEDEC Std 17
  • ESD protection exceeds 2000 V per MIL STD 883 Method 3015 and 200 V per Machine Model

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
74LVT2952D74LVT2952D9351 808 40112Volume productionSOT137-1
(SO24)
TubeStandard Marking74LVT2952D
week 13, 2005
74LVT2952D74LVT2952D-T9351 808 40118Volume productionSOT137-1
(SO24)
Reel Pack, SMD, 13"Standard Marking74LVT2952D
week 13, 2005
74LVT2952DB74LVT2952DB9351 808 60112Volume productionSOT340-1
(SSOP24)
TubeStandard Marking74LVT2952DB
week 12, 2005
74LVT2952DB74LVT2952DB-T9351 808 60118Volume productionSOT340-1
(SSOP24)
Reel Pack, SMD, 13"Standard Marking74LVT2952DB
week 12, 2005
74LVT2952PW74LVT2952PW9351 808 70112Volume productionSOT355-1
(TSSOP24)
TubeStandard Marking74LVT2952PW
week 10, 2005
74LVT2952PW74LVT2952PW-T9351 808 70118Volume productionSOT355-1
(TSSOP24)
Reel Pack, SMD, 13"Standard Marking74LVT2952PW
week 10, 2005

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
74LVT2952D9351 808  40112  2.8400     not available
74LVT2952D9351 808  40118  2.8400      Order samples
74LVT2952DB9351 808  60112  2.8400     not available
74LVT2952DB9351 808  60118  2.8400      Order samples
74LVT2952PW9351 808  70112  2.8400     not available
74LVT2952PW9351 808  70118  2.8400      Order samples

Block diagrams/pinning

Technical documents

Application Notes

AN2022; The Behavior Of Integrated Bus Hold Circuits (01-Mar-96)
AN203_2; Test Fixtures for High Speed Logic (02-Apr-98)
AN2301; Simulation Support for Philips' Advanced BiCMOS Products (01-Nov-93)
AN243; LVT (Low Voltage Technology) and ALVT (Advanced LVT) (01-Jan-98)
AN246; Transmission Lines and Terminations with Philips Advanced Logic Families (01-Feb-98)

Parametrics/similar products

Type numberPackageDescriptionFmax(MHz)Propagation Delay(ns)VoltageNo. of PinsLogic Switching LevelsOutput Drive Capability
74LVT2952DSOT137-1
(SO24)
3.3V Registered Transceiver with Bus Hold (3-State) 200 3.8@3.3V 2.7-3.6 V 24 TTL -32/+64 mA
74LVT2952DBSOT340-1
(SSOP24)
3.3V Registered Transceiver with Bus Hold (3-State) 200 3.8@3.3V 2.7-3.6 V 24 TTL -32/+64 mA
74LVT2952PWSOT355-1
(TSSOP24)
3.3V Registered Transceiver with Bus Hold (3-State) 200 3.8@3.3V 2.7-3.6 V 24 TTL -32/+64 mA

Similar products

74LVT2952 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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