SN74BCT2827CDWRG4 [TI]
10-BIT BUS/MOS MEMORY DRIVERS WITH 3-STATE OUTPUTS; 10位总线/带MOS存储器驱动器3态输出
| 型号： | SN74BCT2827CDWRG4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 10-BIT BUS/MOS MEMORY DRIVERS WITH 3-STATE OUTPUTS |
| 文件： | 总12页 (文件大小：398K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54BCT2827C, SN74BCT2827C
10-BIT BUS/MOS MEMORY DRIVERS
WITH 3-STATE OUTPUTS
SCBS007E – APRIL 1987 – REVISED NOVEMBER 1993
SN54BCT2827C . . . JT OR W PACKAGE
SN74BCT2827C . . . DW OR NT PACKAGE
(TOP VIEW)
• BiCMOS Design Substantially Reduces I
• Output Ports Have Equivalent 25-Ω
Resistors; No External Resistors Are
Required
CCZ
OE1
A1
V
CC
Y1
1
24
23
• Specifically Designed to Drive MOS DRAMs
2
A2
A3
A4
3
22 Y2
21 Y3
20 Y4
• 3-State Outputs Drive Bus Lines or Buffer
4
Memory Address Registers
5
• Flow-Through Architecture Optimizes
6
19
18
17
16
15
14
13
A5
A6
A7
A8
A9
A10
GND
Y5
Y6
Y7
Y8
Y9
Y10
OE2
PCB Layout
7
• Power-Up High-Impedance State
8
• ESD Protection Exceeds 2000 V Per
9
MIL-STD-883C, Method 3015
10
11
12
• Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Standard Plastic and Ceramic 300-mil DIPs
(JT, NT)
SN54BCT2827C . . . FK PACKAGE
(TOP VIEW)
description
These 10-bit buffers and bus drivers are
specifically designed to drive the capacitive input
characteristics of MOS DRAMs. They provide
high-performance bus interface for wide data
paths or buses carrying parity.
4
3
2 1 28 27 26
5
6
7
8
9
25
24
23
22
21
20
19
A3
A4
A5
NC
A6
A7
A8
Y3
Y4
Y5
NC
Y6
Y7
Y8
The 3-state control gate is a 2-input AND gate with
active-low inputs so if either output-enable (OE1
or OE2) input is high, all ten outputs are in the
high-impedance state. The outputs are also in the
high-impedance state during power-up and
power-down conditions. The outputs remain in the
high-impedance state while the device is powered
down.
10
11
12 13 14 15 16 17 18
NC-No internal connection
The SN54BCT2827C is characterized for opera-
tion over the full military temperature range of
–55°C to 125°C. The SN74BCT2827C is
characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
OUTPUT
Y
OE1
L
OE2
L
A
L
L
H
Z
Z
L
L
H
X
X
H
X
X
H
Copyright 1993, 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
SN54BCT2827C, SN74BCT2827C
10-BIT BUS/MOS MEMORY DRIVERS
WITH 3-STATE OUTPUTS
SCBS007E – APRIL 1987 – REVISED NOVEMBER 1993
†
logic symbol
logic diagram (positive logic)
1
OE1
&
1
13
OE1
OE2
EN
13
OE2
2
23
A1
Y1
2
23
22
21
20
19
18
17
16
15
14
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
Y10
1
3
4
5
To Nine Other Channels
6
7
8
9
10
11
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
Pin numbers shown are for the DW, JT, NT, and W packages.
schematic of each output
V
CC
Output
GND
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT2827C, SN74BCT2827C
10-BIT BUS/MOS MEMORY DRIVERS
WITH 3-STATE OUTPUTS
SCBS007E – APRIL 1987 – REVISED NOVEMBER 1993
†
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
Input clamp current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA
IK
Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 mA
Operating free-air temperature range: SN54BCT2827C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
SN74BCT2827C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 negative-voltage rating may be exceeded if the input clamp current rating is observed.
recommended operating conditions
SN54BCT2827C
SN74BCT2827C
MIN NOM MAX
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
–1
0.8
–18
–1
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
Operating free-air temperature
OH
OL
12
12
T
A
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54BCT2827C
SN74BCT2827C
PARAMETER
TEST CONDITIONS
UNIT
‡
‡
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
= 4.5 V,
I = –18 mA
–1.2
–1.2
V
V
IK
CC
I
= 4.5 V to 5.5 V,
I
I
I
= –1 mA
= 1 mA
= 12 mA
= 2.7 V
= 0.5 V
= 2 V
V
CC
–2
V
CC
–2
OH
CC
OH
OL
OL
0.15
0.35
0.5
0.8
20
0.15
0.35
0.5
0.8
20
V
OL
V
CC
= 4.5 V
V
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
= 5.5 V,
= 5.5 V,
= 4.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5 V,
V
V
V
µA
µA
OZH
O
O
O
–20
–20
OZL
50
50
mA
mA
µA
OL(sink)
V = 7 V
I
0.1
20
0.1
20
I
V = 2.7 V
I
IH
V = 0.5 V
I
–0.2
–112
40
–0.2
–112
40
mA
mA
mA
mA
pF
IL
§
V
O
= 2.25 V
–30
–30
O
Outputs open
Outputs open
28
3.8
5
28
3.8
5
CCL
CCZ
6
6
C
C
V = 2.5 V or 0.5 V
I
i
= 5 V,
V = 2.5 V or 0.5 V
I
8
8
pF
o
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
The output conditions have been chosen to produce a current that closely approximates one half of the true short circuit output current, I
.
OS
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT2827C, SN74BCT2827C
10-BIT BUS/MOS MEMORY DRIVERS
WITH 3-STATE OUTPUTS
SCBS007E – APRIL 1987 – REVISED NOVEMBER 1993
switching characteristics (see Note 2)
V
C
= 4.5 V to 5.5 V,
= 50 pF,
V
C
= 5 V,
= 50 pF,
CC
L
CC
L
R1 = 500 Ω,
R1 = 500 Ω,
R2 = 500 Ω,
T
A
FROM
(INPUT)
TO
(OUTPUT)
R2 = 500 Ω,
T
A
PARAMETER
UNIT
†
= MIN to MAX
= 25°C
′BCT2827C
SN54BCT2827C SN74BCT2827C
MIN
TYP
3.6
5.1
5.6
8.9
6.7
5.3
MAX
5.2
7.2
8
MIN
0.9
2
MAX
6.6
MIN
0.9
2
MAX
6
t
t
t
t
t
t
0.9
2
PLH
PHL
PZH
PZL
PHZ
PLZ
A
Y
Y
Y
ns
ns
ns
8.2
7.8
10.7
12.9
13
2.8
5
2.8
5
10.7
13.7
14
2.8
5
OE
OE
11
3.2
2.7
8.5
10.5
3.2
2.7
3.2
2.7
11
10
†
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
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
4-Jun-2007
PACKAGING INFORMATION
Orderable Device
SN74BCT2827CDW
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SOIC
DW
24
24
24
24
24
24
24
24
24
24
24
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74BCT2827CDWE4
SN74BCT2827CDWG4
SN74BCT2827CDWR
SN74BCT2827CDWRE4
SN74BCT2827CDWRG4
SN74BCT2827CNSR
SN74BCT2827CNSRE4
SN74BCT2827CNSRG4
SN74BCT2827CNT
SOIC
SOIC
SOIC
SOIC
SOIC
SO
DW
DW
DW
DW
DW
NS
NS
NS
NT
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
PDIP
PDIP
15
Pb-Free
(RoHS)
CU NIPDAU N / A for Pkg Type
SN74BCT2827CNTE4
NT
15
Pb-Free
(RoHS)
CU NIPDAU N / A for Pkg Type
(1) 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), Pb-Free (RoHS Exempt), 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.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
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
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
4-Jun-2007
to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
4-Oct-2007
TAPE AND REEL BOX INFORMATION
Device
Package Pins
Site
Reel
Reel
A0 (mm)
B0 (mm)
K0 (mm)
P1
W
Pin1
Diameter Width
(mm) (mm) Quadrant
(mm)
330
(mm)
24
SN74BCT2827CDWR
SN74BCT2827CNSR
DW
NS
24
24
SITE 60
SITE 41
10.75
8.2
15.7
15.4
2.7
2.5
12
12
24
24
Q1
Q1
330
24
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
4-Oct-2007
Device
Package
Pins
Site
Length (mm) Width (mm) Height (mm)
SN74BCT2827CDWR
SN74BCT2827CNSR
DW
NS
24
24
SITE 60
SITE 41
346.0
346.0
346.0
346.0
41.0
41.0
Pack Materials-Page 2
MECHANICAL DATA
MPDI004 – OCTOBER 1994
NT (R-PDIP-T**)
PLASTIC DUAL-IN-LINE PACKAGE
24 PINS SHOWN
A
PINS **
24
28
DIM
24
13
1.260
(32,04) (36,20)
1.425
A MAX
1.230
(31,24) (35,18)
1.385
A MIN
B MAX
B MIN
0.280 (7,11)
0.250 (6,35)
0.310
(7,87)
0.315
(8,00)
1
12
0.290
(7,37)
0.295
(7,49)
0.070 (1,78) MAX
B
0.020 (0,51) MIN
0.200 (5,08) MAX
Seating Plane
0.125 (3,18) MIN
0.100 (2,54)
0.010 (0,25)
0°–15°
0.021 (0,53)
0.015 (0,38)
M
0.010 (0,25) NOM
4040050/B 04/95
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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