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SN54BCT640, SN74BCT640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS025C - SEPTEMBER 1988 - REVISED APRIL 1994
* * * * * *
State-of-the-Art BiCMOS Design Substantially Reduces Standby Current Outputs Have Undershoot-Protection Circuitry Power-Up High-Impedance State Buffered Control Inputs to Reduce DC Loading Effects ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015 Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Plastic and Ceramic 300-mil DIPs (J, N)
SN54BCT640 . . . J OR W PACKAGE SN74BCT640 . . . DW OR N PACKAGE (TOP VIEW)
DIR A1 A2 A3 A4 A5 A6 A7 A8 GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC OE B1 B2 B3 B4 B5 B6 B7 B8
description
The BCT640 bus transceiver is designed for asynchronous communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The SN54BCT640 is characterized for operation over the full military temperature range of - 55C to 125C. The SN74BCT640 is characterized for operation from 0C to 70C.
FUNCTION TABLE INPUTS OE L L H DIR L H X OPERATION B data to A bus A data to B bus Isolation
SN54BCT640 . . . FK PACKAGE (TOP VIEW)
A2 A1 DIR VCC A3 A4 A5 A6 A7
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
OE B1 B2 B3 B4 B5
PRODUCTION DATA information is 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.
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A8 GND B8 B7 B6
Copyright (c) 1994, Texas Instruments Incorporated
2-1
SN54BCT640, SN74BCT640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS025C - SEPTEMBER 1988 - REVISED APRIL 1994
logic symbol
OE DIR 19 1 G3 3 EN1 [BA] 3 EN2 [AB] A1 2 1 3 4 5 6 7 8 9 1 1 2 17 16 15 14 13 12 11 18
logic diagram (positive logic)
OE 19
DIR B1
1
A2 A3 A4 A5 A6 A7 A8
B2 B3 B4 B5 B6 B7 B8 A1
2
18
B1
To Seven Other Channels This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to 7 V Input voltage range: Control inputs (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to 7 V I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to 5.5 V Voltage range applied to any output in the disabled or power-off state, VO . . . . . . . . . . . . . . . - 0.5 V to 5.5 V Voltage range applied to any output in the high state, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to VCC Input clamp current, IIK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 mA Current into any output in the low state: SN54BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA SN74BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Operating free-air temperature range: SN54BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to 125C SN74BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 70C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to 150C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2-2
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SN54BCT640, SN74BCT640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS025C - SEPTEMBER 1988 - REVISED APRIL 1994
recommended operating conditions
SN54BCT640 MIN VCC VIH VIL IIK IOH IOL TA Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level High level output current Low-level Low level output current Operating free-air temperature A port B port A port B port - 55 4.5 2 0.8 -18 -3 -12 20 48 125 0 NOM 5 MAX 5.5 SN74BCT640 MIN 4.5 2 0.8 -18 -3 -15 24 64 70 NOM 5 MAX 5.5 UNIT V V V mA mA mA C
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER VIK A port VOH B port VCC = 4.5 V VCC = 4.5 V, VCC = 4 5 V 4.5 TEST CONDITIONS II = -18 mA IOH = -1 mA IOH = - 3 mA IOH = - 3 mA IOH = -12 mA IOH = -15 mA IOL = 20 mA IOL = 24 mA IOL = 48 mA IOL = 64 mA VI = 5 5 V 5.5 VI = 2 7 V 2.7 VI = 0 5 V 0.5 VO = 0 - 60 -100 53 23 MIN SN54BCT640 TYP MAX -1.2 2.5 2.4 2.4 2 3.4 3.3 3.3 3.2 2 0.3 0.38 0.5 0.35 0.55 0.42 1 0.1 70 20 - 0.6 - 0.65 -150 - 225 84 37 - 60 -100 53 23 4 0.55 1 0.1 70 20 - 0.6 - 0.65 -150 - 225 94 41 11 mA A mA mA mA mA mA 0.5 V 3.1 2.5 2.4 2.4 3.4 3.3 3.3 V MIN SN74BCT640 TYP MAX -1.2 UNIT V
A port VOL B port A or B port II IIH IIL IOS ICCL ICCH Control inputs A or B port Control inputs A or B port Control inputs A port B port A to B A to B
VCC = 4 5 V 4.5 VCC = 4 5 V 4.5 VCC = 5 5 V 5.5 V, VCC = 5 5 V 5.5 V, VCC = 5 5 V 5.5 V, VCC = 5 5 V 5.5 V, VCC = 5.5 V VCC = 5.5 V
ICCZ VCC = 5.5 V 4 10 All typical values are at VCC = 5 V, TA = 25C. For I/O ports, the parameters IIH and IIL include the off-state output current. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
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2-3
SN54BCT640, SN74BCT640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SCBS025C - SEPTEMBER 1988 - REVISED APRIL 1994
switching characteristics (see Note 2)
VCC = 5 V, CL = 50 pF, R1 = 500 , R2 = 500 , TA = 25C BCT640 MIN tPLH tPHL tPZH tPZL tPHZ tPLZ A or B B or A A or B A or B 0.5 0.5 3.1 4.1 1.9 1.8 TYP 3.6 1.9 6.4 6.9 5 4.3 MAX 5.6 3.4 8.9 9.5 7.9 6.8 VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 , R2 = 500 , TA = MIN to MAX SN54BCT640 MIN 0.5 0.5 2.6 3.5 1.4 1.5 MAX 7 3.8 10.5 12.3 12.2 8.3 SN74BCT640 MIN 0.5 0.5 2.6 3.5 1.4 1.5 MAX 6.5 3.7 10.2 10.7 10.2 7.8 ns ns ns
PARAMETER
FROM (INPUT)
TO (OUTPUT)
UNIT
OE OE
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
2-4
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PACKAGE OPTION ADDENDUM
www.ti.com
26-Sep-2005
PACKAGING INFORMATION
Orderable Device 5962-9075201M2A 5962-9075201MRA 5962-9075201MSA SN74BCT640DW SN74BCT640DWE4 SN74BCT640DWR SN74BCT640DWRE4 SN74BCT640N SN74BCT640NE4 SN74BCT640NSR SN74BCT640NSRE4 SNJ54BCT640FK SNJ54BCT640J SNJ54BCT640W
(1)
Status (1) ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE
Package Type LCCC CDIP CFP SOIC SOIC SOIC SOIC PDIP PDIP SO SO LCCC CDIP CFP
Package Drawing FK J W DW DW DW DW N N NS NS FK J W
Pins Package Eco Plan (2) Qty 20 20 20 20 20 20 20 20 20 20 20 20 20 20 1 1 1 25 25 TBD TBD TBD Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br)
Lead/Ball Finish Call TI Call TI Call TI CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU Call TI Call TI Call TI
MSL Peak Temp (3) Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-NC-NC-NC Level-NC-NC-NC Level-1-260C-UNLIM Level-1-260C-UNLIM Level-NC-NC-NC Level-NC-NC-NC Level-NC-NC-NC
2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 20 20 Pb-Free (RoHS) Pb-Free (RoHS)
2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 1 1 1 TBD TBD TBD
The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
MECHANICAL DATA
MLCC006B - OCTOBER 1996
FK (S-CQCC-N**)
28 TERMINAL SHOWN
LEADLESS CERAMIC CHIP CARRIER
18
17
16
15
14
13
12
NO. OF TERMINALS ** 11 10 28 9 8 7 6 68 5 84 44 52 20
A MIN 0.342 (8,69) 0.442 (11,23) 0.640 (16,26) 0.739 (18,78) 0.938 (23,83) 1.141 (28,99) MAX 0.358 (9,09) 0.458 (11,63) 0.660 (16,76) 0.761 (19,32) 0.962 (24,43) 1.165 (29,59) MIN 0.307 (7,80) 0.406 (10,31) 0.495 (12,58) 0.495 (12,58) 0.850 (21,6) 1.047 (26,6)
B MAX 0.358 (9,09) 0.458 (11,63) 0.560 (14,22) 0.560 (14,22) 0.858 (21,8) 1.063 (27,0)
19 20 21 B SQ 22 A SQ 23 24 25
26
27
28
1
2
3
4 0.080 (2,03) 0.064 (1,63) 0.020 (0,51) 0.010 (0,25)
0.020 (0,51) 0.010 (0,25)
0.055 (1,40) 0.045 (1,14)
0.045 (1,14) 0.035 (0,89)
0.028 (0,71) 0.022 (0,54) 0.050 (1,27)
0.045 (1,14) 0.035 (0,89)
4040140 / D 10/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. This package can be hermetically sealed with a metal lid. The terminals are gold plated. Falls within JEDEC MS-004
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