5962-9088901MDA [TI]
具有 TTL 兼容型 CMOS 输入和三态输出的军用 4 通道 4.5V 至 5.5V 缓冲器 | W | 14 | -55 to 125;
| 型号： | 5962-9088901MDA |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 具有 TTL 兼容型 CMOS 输入和三态输出的军用 4 通道 4.5V 至 5.5V 缓冲器 | W | 14 | -55 to 125 |
| 文件： | 总5页 (文件大小：72K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54BCT126A, SN74BCT126A
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCBS252A – SEPTEMBER 1988 – REVISED APRIL 1994
SN54BCT126A . . . J OR W PACKAGE
SN74BCT126A . . . D OR N PACKAGE
(TOP VIEW)
• State-of-the-Art BiCMOS Design
Significantly Reduces I
CCZ
• ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015
1OE
1A
1
2
3
4
5
6
7
14
13
12
11
10
9
V
4OE
CC
• 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
1Y
4A
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK) and Flatpacks (W), and
Standard Plastic and Ceramic 300-mil
DIPs (J, N)
2OE
2A
2Y
4Y
3OE
3A
GND
8
3Y
SN54BCT126A . . . FK PACKAGE
(TOP VIEW)
description
The ′BCT126A bus buffer features independent
line drivers with 3-state outputs. Each output is
disabled when the associated output-enable (OE)
input is low.
3
2
1
20 19
18
4A
1Y
NC
4
5
6
7
8
NC
4Y
17
16
15
14
The SN54BCT126A is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74BCT126A is characterized for
operation from 0°C to 70°C.
2OE
NC
NC
3OE
2A
9 10 11 12 13
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
Y
NC – No internal connection
OE
A
H
L
H
H
L
H
L
X
Z
Copyright 1994, Texas Instruments Incorporated
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.
2–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT126A, SN74BCT126A
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCBS252A – SEPTEMBER 1988 – REVISED APRIL 1994
†
logic symbol
logic diagram (positive logic)
1
1
1
1OE
1A
EN
3
6
1OE
2
1Y
2Y
4
5
2
3
6
1A
1Y
2Y
3Y
4Y
2OE
2A
4
10
9
2OE
3OE
3A
8
3Y
4Y
5
13
12
2A
11
4OE
4A
10
3OE
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
9
8
3A
13
4OE
12
11
4A
Pin numbers shown are for the J, N, and W packages.
‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
CC
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
I
Voltage range applied to any output in the disabled or power-off state, V . . . . . . . . . . . . . . . – 0.5 V to 5.5 V
O
Voltage range applied to any output in the high state, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to V
O
CC
Current into any output in the low state: SN54BCT126A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74BCT126A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Operating free-air temperature range: SN54BCT126A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74BCT126A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°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
SN54BCT126A
MIN NOM MAX
SN74BCT126A
UNIT
MIN NOM
MAX
V
V
V
Supply voltage
4.5
2
5
5.5
4.5
2
5
5.5
V
V
CC
IH
IL
High-level input voltage
Low-level input voltage
Input clamp current
0.8
–18
–12
48
0.8
–18
–15
64
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
Operating free-air temperature
OH
OL
T
A
–55
125
0
70
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT126A, SN74BCT126A
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCBS252A – SEPTEMBER 1988 – REVISED APRIL 1994
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54BCT126A
SN74BCT126A
PARAMETER
TEST CONDITIONS
UNIT
†
†
MIN TYP
MAX
MIN TYP
MAX
V
V
V
= 4.5 V,
= 4.5 V
I = –18 mA
–1.2
–1.2
V
IK
CC
I
I
I
I
I
I
= –3 mA
= –12 mA
= –15 mA
= 48 mA
= 64 mA
2.4
2
3.3
3.2
2.4
2
3.3
3.1
OH
OH
OH
OL
OL
V
OH
V
CC
0.38
0.55
V
V
CC
= 4.5 V
V
OL
0.42
0.55
0.1
25
I
I
I
I
I
I
I
I
I
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 0,
V = 7 V
I
0.1
35
mA
µA
µA
µA
µA
mA
mA
mA
mA
pF
I
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5 V,
V = 2.7 V
I
IH
V = 0.5 V
I
–20
50
–20
50
IL
V
O
V
O
V
O
= 2.7 V
= 0.5 V
= 0
OZH
–50
–50
–225
33
OZL
‡
–100
–225 –100
OS
Outputs open
Outputs open
Outputs open
21
35
5
33
51
10
21
35
5
CCH
CCL
CCZ
51
10
C
C
V = 2.5 V or 0.5 V
I
4
4
i
= 5 V,
V
O
= 2.5 V or 0.5 V
9
9
pF
o
†
‡
All typical values are at V
= 5 V.
CC
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
switching characteristics (see Note 2)
V
C
= 5 V,
= 50 pF,
V
C
= 4.5 V to 5.5 V,
CC
L
CC
L
= 50 pF,
R1 = 500 Ω,
R2 = 500 Ω,
T
A
R1 = 500 Ω,
R2 = 500 Ω,
§
T = MIN to MAX
A
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
= 25°C
′BCT126A
TYP
3.6
SN54BCT126A
SN74BCT126A
MIN
1.5
2.7
2.6
3.7
3.2
3.4
MAX
4.9
6.9
6.4
8.3
8.2
8
MIN
1.5
2.7
2.6
3.7
3.2
3.4
MAX
5.6
MIN
1.5
2.7
2.6
3.7
3.2
3.4
MAX
6.3
7.4
7.9
10
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
A
Y
Y
Y
ns
ns
ns
5.3
7.7
4.8
7.2
OE
OE
6.4
10.5
9.6
6.6
10
6.5
12.3
10.7
§
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.
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2–4
IMPORTANT NOTICE
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
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Copyright 1998, Texas Instruments Incorporated
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