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Datasheet

74HC/HCT652
(Product Specification)
01-Sep-93, 10 pages, 100 kB

General description

The 74HC/HCT652 are high-speed SI-gate CMOS devices and are pin compatible with Low power Schottky TTL (LSTTL). They are specified in compliance with Jedec standard no. 7A.

The 74HC/HCT652 consist of 8 non-inverting bus transceiver circuits with 3-state outputs, D-type flip-flops and central circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. Data on the 'A' or 'B' or both buses, will be stored in the internal registers, at the appropriate clock pins (CPAB or CPBA) regardless of the select pins (SAB and SBA) or output enable (OEAB and OEBA) control pins. Depending on the select inputs SAB and SBA data can directly go from input to output (real time mode) or data can be controlled by the clock (storage mode), this is when the output enable pins this operating mode permits. The output enable pins OEAB and OEBA determine the operation mode of the transceiver. When OEAB is LOW, no data transmission from An to Bn is possible and when OEBA is HIGH, there is no data transmission from Bn to An possible. When SAB and SBA are in the real time transfer mode, it is also possible to store data without using the internal D-type flip-flops by simultaneously enabling OEAB and OEBA. In this configuration each output reinforces its input. Thus when all other data sources to the two sets of bus lines are at high-impedance, each set of the bus lines will remain at its last state. This type differs from the HC/HCT646 in one extra bus-management function. This is the possibility to transfer stored 'A' data to the 'B' bus and transfer stored 'B' data to the 'A' bus at the same time. The examples at the application information demonstrate all bus management functions.
Schmitt-trigger action in the clock inputs makes the circuit highly tolerant to slower clock rise and fall times.

Features

  • Multiplexed real-time and stored data
  • Independent register for A and B buses
  • Independent enables for A and B buses
  • 3-state
  • Output capability: Bus driver
  • Low power consumption by CMOS technology
  • ICC category: MSI.

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
74HC652D74HC652D9350 511 90112Volume productionSOT137-1
(SO24)
TubeStandard Marking74HC652D
week 13, 2005
74HC652D74HC652D-T9350 511 90118Volume productionSOT137-1
(SO24)
Reel Pack, SMD, 13"Standard Marking74HC652D
week 13, 2005
74HC652DB74HC652DB9352 488 40112Volume productionSOT340-1
(SSOP24)
TubeStandard Marking74HC652DB
week 12, 2005
74HC652DB74HC652DB-T9352 488 40118Volume productionSOT340-1
(SSOP24)
Reel Pack, SMD, 13"Standard Marking74HC652DB
week 12, 2005
74HC652N74HC652N9350 512 60112Volume productionSOT101-1
(DIP24)
TubeStandard Marking74HC652N
Always Pb-free
74HC652PW74HC652PW9352 488 60112Volume productionSOT355-1
(TSSOP24)
TubeStandard Marking74HC652PW
week 10, 2005
74HC652PW74HC652PW-T9352 488 60118Volume productionSOT355-1
(TSSOP24)
Reel Pack, SMD, 13"Standard Marking74HC652PW
week 10, 2005
74HCT652D74HCT652D9350 512 40112Volume productionSOT137-1
(SO24)
TubeStandard Marking74HCT652D
week 13, 2005
74HCT652D74HCT652D-T9350 512 40118Volume productionSOT137-1
(SO24)
Reel Pack, SMD, 13"Standard Marking74HCT652D
week 13, 2005
74HCT652N74HCT652N9350 511 80112Volume productionSOT101-1
(DIP24)
TubeStandard Marking74HCT652N
Always Pb-free

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
74HC652D9350 511  90112  1.1500     not available
74HC652D9350 511  90118  1.1500      Order samples
74HC652DB9352 488  40112  1.1500     not available
74HC652DB9352 488  40118  1.1500      Order samples
74HC652N9350 512  60112  1.2600      Order samples
74HC652PW9352 488  60112  1.1500     not available
74HC652PW9352 488  60118  1.1500     not available
74HCT652D9350 512  40112  1.1500     not available
74HCT652D9350 512  40118  1.1500      Order samples
74HCT652N9350 511  80112  1.2600      Order samples

Applications

  • Bus interfaces.

Technical documents

Support Documents

HCT_USER_GUIDE; HC/T User Guide (1997-11-01)

Parametrics/similar products

Type numberPackageDescriptionFmax(MHz)Propagation Delay(ns)VoltageNo. of PinsPower Dissipation ConsiderationsLogic Switching LevelsOutput Drive Capability
74HC652DSOT137-1
(SO24)
Transceiver/Register; Non-Inverting (3-State) 98 @ 6 V 13@5V 2.0-6.0 V 24 Low Power or Battery Applications CMOS +/- 7.8 mA
74HC652DBSOT340-1
(SSOP24)
Transceiver/Register; Non-Inverting (3-State) 98 @ 6 V 13@5V 2.0-6.0 V 24 Low Power or Battery Applications CMOS +/- 7.8 mA
74HC652NSOT101-1
(DIP24)
Transceiver/Register; Non-Inverting (3-State) 98 @ 6 V 13@5V 2.0-6.0 V 24 Low Power or Battery Applications CMOS +/- 7.8 mA
74HC652PWSOT355-1
(TSSOP24)
Transceiver/Register; Non-Inverting (3-State) 98 @ 6 V 13@5V 2.0-6.0 V 24 Low Power or Battery Applications CMOS +/- 7.8 mA
74HCT652DSOT137-1
(SO24)
Transceiver/Register; Non-Inverting; TTL Enabled (3-State) 92 13 4.5-5.5 V 24 Low Power TTL +/- 6 mA
74HCT652NSOT101-1
(DIP24)
Transceiver/Register; Non-Inverting; TTL Enabled (3-State) 92 13 4.5-5.5 V 24 Low Power TTL +/- 6 mA

Similar products

74HC/HCT652 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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