Datasheet

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SN54HCT652, SN74HCT652

OCTAL BUS TRANSCEIVERS AND REGISTERS

WITH 3-STATE OUTPUTS

SCLS179D – MARCH 1984 – REVISED MARCH 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Operating Voltage Range of 4.5 V to 5.5 V

Low Power Consumption, 80-µA Max I

Typical t

= 12 ns

±6-mA Output Drive at 5 V

Low Input Current of 1 µA Max

Inputs Are TTL-Voltage Compatible

Independent Registers and Enables for

A and B Buses

Multiplexed Real-Time and Stored Data

True Data Paths

High-Current 3-State Outputs Can Drive Up

To 15 LSTTL Loads

SN54HCT652 ...JT OR W PACKAGE

SN74HCT652 . . . DW OR NT PACKAGE

(TOP VIEW)

SN54HCT652 . . . FK PACKAGE

(TOP VIEW)

NC – No internal connection

CLKAB

SAB

OEAB

GND

CLKBA

SBA

OEBA

321

13 14

OEBA

15 16 17

GND

OEAB

SAB

CLKAB

28 27 26

CLKBA

SAB

description/ordering information

The ’HCT652 devices consist of bus-transceiver circuits, D-type flip-flops, and control circuitry arranged for

multiplexed transmission of data directly from the data bus or from the internal storage registers. Output-enable

(OEAB and OEBA

) inputs are provided to control the transceiver functions. Select-control (SAB and SBA) inputs

are provided to select real-time or stored data transfer. A low input level selects real-time data; a high input level

selects stored data. Figure 1 illustrates the four fundamental bus-management functions that can be performed

with these devices.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP – NT Tube SN74HCT652NT SN74HCT652NT

–40°C to 85°C

SOIC DW

Tube SN74HCT652DW

HCT652

SOIC

–

Tape and reel SN74HCT652DWR

HCT652

CDIP – JT Tube SNJ54HCT652JT SNJ54HCT652JT

–55°C to 125°C

CFP – W Tube SNJ54HCT652W SNJ54HCT652W

LCCC – FK Tube SNJ54HCT652FK SNJ54HCT652FK

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at www.ti.com/sc/package.

UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information current as of publication date. Products conform to

specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all

parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Summary of content (13 pages)

PAGE 1
SN54HCT652, SN74HCT652 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCLS179D – MARCH 1984 – REVISED MARCH 2003 D D D D D D D Operating Voltage Range of 4.5 V to 5.
PAGE 2
SN54HCT652, SN74HCT652 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCLS179D – MARCH 1984 – REVISED MARCH 2003 description/ordering information (continued) Data on the A or B data bus, or both, can be stored in the internal D-type flip-flops by low-to-high transitions at the appropriate clock (CLKAB or CLKBA) terminals, regardless of the select- or output-control terminals.
PAGE 3
SN54HCT652, SN74HCT652 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS 3 21 OEAB OEBA L L 1 23 2 CLKAB CLKBA SAB X X X BUS B BUS A BUS A BUS B SCLS179D – MARCH 1984 – REVISED MARCH 2003 22 SBA L 3 21 OEAB OEBA H H 21 OEBA H X H 1 23 2 CLKAB CLKBA SAB ↑ X ↑ X ↑ ↑ X X X 2 SAB L 22 SBA X BUS B BUS A BUS A 3 OEAB X L L 23 CLKBA X REAL-TIME TRANSFER BUS A TO BUS B BUS B REAL-TIME TRANSFER BUS B TO BUS A 1 CLKAB X 22 3 21 1 23 2 22 SBA OEAB H OEBA L CLKAB CLKBA SAB
PAGE 4
SN54HCT652, SN74HCT652 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCLS179D – MARCH 1984 – REVISED MARCH 2003 logic diagram (positive logic) OEBA OEAB CLKBA SBA CLKAB SAB 21 3 23 22 1 2 One of Eight Channels 1D C1 A1 4 20 B1 1D C1 To Seven Other Channels Pin numbers shown are for the DW, JT, NT, and W packages. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 5
SN54HCT652, SN74HCT652 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCLS179D – MARCH 1984 – REVISED MARCH 2003 recommended operating conditions (see Note 4) SN54HCT652 NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 VCC VIH Supply voltage VIL VI Low-level input voltage Input voltage 0 VO tt Output voltage 0 High-level input voltage VCC = 4.5 V to 5.5 V VCC = 4.5 V to 5.5 V SN74HCT652 MIN 2 2 Input transition (rise and fall) time V V 0.8 VCC VCC UNIT 0 0 500 0.
PAGE 6
SN54HCT652, SN74HCT652 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCLS179D – MARCH 1984 – REVISED MARCH 2003 switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 2) PARAMETER FROM (INPUT) TO (OUTPUT) fmax CLKBA or CLKAB tpd d A or B A or B B or A SBA or SAB† A or B ten OEBA or OEAB A or B tdis di OEBA or OEAB A or B tt Any VCC MIN TA = 25°C TYP MAX SN54HCT652 MIN MAX SN74HCT652 MIN 4.
PAGE 7
SN54HCT652, SN74HCT652 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCLS179D – MARCH 1984 – REVISED MARCH 2003 PARAMETER MEASUREMENT INFORMATION VCC S1 Test Point From Output Under Test PARAMETER ten RL tdis CL (see Note A) S2 tPZH RL 1 kΩ tPZL tPHZ 1 kΩ CL S1 S2 50 pF or 150 pF Open Closed Closed Open Open Closed Closed Open Open Open 50 pF tPLZ tpd or tt 50 pF or 150 pF –– LOAD CIRCUIT 3V High-Level Pulse 1.3 V 3V Reference Input 1.3 V 0V 1.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN74HCT652DWR Package Package Pins Type Drawing SOIC DW 24 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 24.4 Pack Materials-Page 1 10.75 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 15.7 2.7 12.0 24.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74HCT652DWR SOIC DW 24 2000 367.0 367.0 45.
PAGE 11
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