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Details, datasheet, quote on part number:SN64BCT125ANSR
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Datasheet text preview:
SN64BCT125A QUADRUPLE BUS BUFFER GATE WITH 3-STATE OUTPUTS
SCBS052B JULY 1990 REVISED MAY 1994
· · · · ·
State-of-the-Art BiCMOS Design Significantly Reduces ICCZ High-Impedance State During Power-Up and Power-Down 3-State Outputs Drive Bus Lines or Buffer-Memory Address Registers ESD Protection Exceeds 2000 V Per MIL-STD-883C Method 3015 Package Options Include Plastic Small-Outline (D) Packages and Standard Plastic 300-mil DIPs (N)
D OR N PACKAGE (TOP VIEW)
1OE 1A 1Y 2OE 2A 2Y GND
1 2 3 4 5 6 7
14 13 12 11 10 9 8
VCC 4OE 4A 4Y 3OE 3A 3Y
description
The SN64BCT125A bus buffer features independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is high. The SN64BCT125A is characterized for operation from 40°C to 85°C and 0°C to 70°C.
FUNCTION TABLE (each buffer) INPUTS OE L L H A H L X OUTPUT Y H L Z
logic symbol
1OE 1A 2OE 2A 3OE 3A 4OE 4A 1 2 4 5 10 9 13 12 8 3Y EN 1 3 6 1Y 2Y
logic diagram (positive logic)
1OE 1A 1 2 3
1Y
2OE 2A 4Y 3OE
4 5 6
11
2Y
10 9 8
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
3A
3Y
4OE 4A
13 12 11
4Y
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 © 1994, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
33
SN64BCT125A QUADRUPLE BUS BUFFER GATE WITH 3-STATE OUTPUTS
SCBS052B JULY 1990 REVISED MAY 1994
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 Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 85°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
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.
recommended operating conditions
MIN VCC VIH VIL IIK IOH IOL TA Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level output current Low-level output current Operating free-air temperature 40 4.5 2 0.8 18 15 64 85 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 VOH VOL IOZH IOZL IOZ II IIH IIL IOS§ ICCL ICCH ICCZ Ci VCC = 4.5 V, VCC = 4 5 V 4.5 VCC = 4.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 0 to 1.3 V (power up) VCC = 1.3 V to 0 (power down) VCC = 0, 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, VCC = 5 V, VI = 2.5 V or 0.5 V VO = 2.5 V or 0.5 V TEST CONDITIONS II = 18 mA IOH = 3 mA IOH = 15 mA IOH = 64 mA VO = 2.7 V VO = 0.5 V VO = 2 7 V or 0 5 V, 2.7 or 0.5 V VI = 7 V VI = 2.7 V VI = 0.5 V VO = 0 100 46 19 6 4 9 OE at 0.8 V at 0 8 MIN 2.4 2 TYP 3.3 3.1 0.42 0.55 50 50 MAX 1.2 UNIT V V V µA µA µA mA µA µA mA mA mA mA pF pF
" 50 " 50
25
0.1 20 225 49 31 14
Co All typical values are at VCC = 5 V, TA = 25°C. § 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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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN64BCT125A QUADRUPLE BUS BUFFER GATE WITH 3-STATE OUTPUTS
SCBS052B JULY 1990 REVISED MAY 1994
switching characteristics (see Note 2)
VCC = 5 V, CL = 50 pF, R1 = 500 , R2 = 500 500 , TA = 25°C MIN tPLH tPHL tPZH tPZL tPHZ tPLZ A Y Y Y 1.6 2.7 3.4 5 3 2.8 TYP 3.5 5 6.7 8.2 5.8 5.5 MAX 5.2 6.9 9 10.4 7.4 7.3 VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 , R2 = 500 TA = 40°C to 85°C MIN 1.6 2.7 3.4 5 3 2.8 MAX 6 8 11.1 12.8 9.4 9.9 TA = 0°C to 70°C MIN 1.6 2.7 3.4 5 3 2.8 MAX 5.7 7.7 10.3 11.7 8.9 8.6 ns ns ns
PARAMETER
FROM (INPUT)
TO (OUTPUT)
UNIT
OE OE
NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
35
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