View SCBS091A_1000100.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

SN64BCT2240 OCTAL BUFFER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS
SCBS091A - JUNE 1990 - REVISED NOVEMBER 1993
* * * * * *
State-of-the-Art BiCMOS Design Significantly Reduces ICCZ ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) Output Ports Have Equivalent 33- Series Resistors, So No External Resistors Are Required High-Impedance State During Power Up and Power Down 3-State Buffer-Type Outputs Drive Bus Lines Directly Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic 300-mil DIPs (N)
DW OR N PACKAGE (TOP VIEW)
1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1
description
The SN64BCT2240 is an inverting octal buffer and line/MOS driver designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Taken together with the SN64BCT2241 and SN64BCT2244, these devices provide the choice of selected combinations of inverting outputs, symmetrical OE (active-low output-enable) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in. When the output-enable (1OE and 2OE) inputs are low, the Y outputs reflect the inverse of the data present at the A inputs. When 1OE and 2OE are high, the outputs are in the high-impedance state. Output-enable 1OE affects only the 1Y outputs; output-enable 2OE affects only the 2Y outputs. The outputs, which are designed to source or sink up to 12 mA, include 33- series resistors to reduce overshoot and undershoot. The SN64BCT2240 is characterized for operation from - 40C to 85C and 0C to 70C.
FUNCTION TABLE (each buffer) INPUTS OE L L H A H L X OUTPUT Y L H Z
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.
Copyright (c) 1993, Texas Instruments Incorporated
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
1
SN64BCT2240 OCTAL BUFFER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS
SCBS091A - JUNE 1990 - REVISED NOVEMBER 1993
logic symbol
1OE 1 EN 18 16 14 12
logic diagram (positive logic)
1 1OE 2 18
1A1 1A2 1A3 1A4
2 4 6 8
1
1Y1 1Y2 1Y3 1Y4
1A1
1Y1
1A2
4
16
1Y2
1A3 2OE 19 EN 9 7 5 3 1A4 2Y1 2Y2 2Y3 2Y4 2A1 2OE
6
14
1Y3
8
12
2A1 2A2 2A3 2A4
11 13 15 17
1Y4
1
19
11
9
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
2Y1
2A2
13
7
2Y2
schematic of Y outputs
VCC 2A3 15 5 2Y3
2A4
17
3
2Y4
Output
GND
2
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
SN64BCT2240 OCTAL BUFFER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS
SCBS091A - JUNE 1990 - REVISED NOVEMBER 1993
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, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5 V to 7 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 (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 30 mA Current into any output in the low state, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 mA Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40C to 85C 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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
recommended operating conditions (see Note 2)
MIN VCC VIH VIL IIK IOH IOL t /VCC Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level output current Low-level output current Power-up ramp rate 2 - 40 85 4.5 2 0.8 -18 -12 12 NOM 5 MAX 5.5 UNIT V V V mA mA mA s / V C
TA Operating free-air temperature NOTE 2: Unused or floating inputs must be held high or low.
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER VIK VOH VOL II IIH IIL IOZ IOZH IOZL IOS ICCL ICCH ICCZ Ci Co VCC = 4.5 V, VCC = 4 5 V 4.5 VCC = 4 5 V 4.5 VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 0 to 2.3 V (power up) VCC = 1.8 V to 0 (power down) VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5 V, TEST CONDITIONS II = -18 mA IOH = - 1 mA IOH = - 12 mA IOL = 1 mA IOL = 12 mA VI = 7 V VI = 2.7 V VI = 0.5 V VO = 2 7 V or 0 5 V, 2.7 0.5 V VO = 2.7 V VO = 0.5 V VO = 0 Outputs open Outputs open Outputs open - 100 46 19 6 6 11 OE = 0 8 V 0.8 MIN 2.4 2 TYP 3.3 3.1 0.15 0.15 0.5 0.8 0.1 20 -1 50 50 50 - 50 - 225 76 32 8 MAX -1.2 UNIT V V V mA A mA A A A mA mA mA mA pF pF
VI = VCC or GND VCC = 5 V, VO = VCC or GND All typical values are at VCC = 5 V, TA = 25C. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
3
SN64BCT2240 OCTAL BUFFER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS
SCBS091A - JUNE 1990 - REVISED NOVEMBER 1993
switching characteristics over recommended range of supply voltage, CL = 50 pF (unless otherwise noted) (see Note 3)
PARAMETER tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) A TO (OUTPUT) Y Y Y VCC = 5 V, TA = 25C MIN 0.5 0.5 2.6 4.3 2 2.2 TYP 3.4 2.8 6.2 8.8 5.3 6.7 MAX 4.8 4 8.2 10.9 7.1 8.5 TA = - 40C to 85C MIN 0.5 0.5 2.6 4.3 2 2.2 MAX 6.3 4.6 10.1 12.9 9.2 12.2 TA = 0C to 70C MIN 0.5 0.5 2.6 4.3 2 2.2 MAX 5.7 4.4 9.3 12.4 8.7 10.6 ns ns ns UNIT
OE OE
NOTE 3: Load circuits and voltage waveforms are shown in Section 1.
4
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI's publication of information regarding any third party's products or services does not constitute TI's approval, warranty or endorsement thereof.
Copyright (c) 1998, Texas Instruments Incorporated

▲Up To Search▲

Price & Availability of SCBS091A

	To Download SCBS091A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .