概述
规格参数
数据手册
替代型号SN74AUC245ZQNR 概述
OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS 具有三态输出八路总线收发器 逻辑控制器 总线驱动器/收发器
SN74AUC245ZQNR 规格参数
| 是否无铅： | 不含铅 | 是否Rohs认证： | 符合 |
| 生命周期： | Lifetime Buy | 零件包装代码： | BGA |
| 包装说明： | VFBGA, BGA20,4X5,20 | 针数： | 20 |
| Reach Compliance Code： | compliant | ECCN代码： | EAR99 |
| HTS代码： | 8542.39.00.01 | Factory Lead Time： | 1 week |
| 风险等级： | 7.75 | 控制类型： | COMMON CONTROL |
| 计数方向： | BIDIRECTIONAL | 系列： | AUC |
| JESD-30 代码： | R-PBGA-B20 | JESD-609代码： | e1 |
| 长度： | 4 mm | 负载电容（CL）： | 15 pF |
| 逻辑集成电路类型： | BUS TRANSCEIVER | 最大I（ol）： | 0.009 A |
| 湿度敏感等级： | 1 | 位数： | 8 |
| 功能数量： | 1 | 端口数量： | 2 |
| 端子数量： | 20 | 最高工作温度： | 85 °C |
| 最低工作温度： | -40 °C | 输出特性： | 3-STATE |
| 输出极性： | TRUE | 封装主体材料： | PLASTIC/EPOXY |
| 封装代码： | VFBGA | 封装等效代码： | BGA20,4X5,20 |
| 封装形状： | RECTANGULAR | 封装形式： | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| 包装方法： | TR | 峰值回流温度（摄氏度）： | 260 |
| 电源： | 1.2/2.5 V | 最大电源电流（ICC）： | 0.02 mA |
| Prop。Delay @ Nom-Sup： | 3.2 ns | 传播延迟（tpd）： | 3.2 ns |
| 认证状态： | Not Qualified | 施密特触发器： | No |
| 座面最大高度： | 1 mm | 子类别： | Bus Driver/Transceivers |
| 最大供电电压 (Vsup)： | 2.7 V | 最小供电电压 (Vsup)： | 0.8 V |
| 标称供电电压 (Vsup)： | 1.2 V | 表面贴装： | YES |
| 技术： | CMOS | 温度等级： | INDUSTRIAL |
| 端子面层： | Tin/Silver/Copper (Sn/Ag/Cu) | 端子形式： | BALL |
| 端子节距： | 0.65 mm | 端子位置： | BOTTOM |
| 处于峰值回流温度下的最长时间： | NOT SPECIFIED | 翻译： | N/A |
| 宽度： | 3 mm | Base Number Matches： | 1 |
SN74AUC245ZQNR 数据手册
通过下载SN74AUC245ZQNR数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载SN74AUC245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES419A–JANUARY 2003–REVISED MARCH 2005
FEATURES
RGY PACKAGE
(TOP VIEW)
•
Optimized for 1.8-V Operation and Is 3.6-V I/O
Tolerant to Support Mixed-Mode Signal
Operation
•
Ioff Supports Partial-Power-Down Mode
Operation
1
20
19
18
17
16
15
14
13
12
2
3
4
5
6
7
8
9
A1
A2
A3
A4
A5
A6
A7
A8
OE
B1
B2
B3
B4
B5
B6
B7
•
•
•
•
•
Sub-1-V Operable
Max tpd of 1.7 ns at 1.8 V
Low Power Consumption, 20-µA Max ICC
±8-mA Output Drive at 1.8 V
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
•
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
10
11
– 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
This octal bus transceiver is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V
VCC operation.
The SN74AUC245 is designed for asynchronous communication between data buses. The device transmits data
from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control
(DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74AUC245RGYR
SN74AUC245GQNR
TOP-SIDE MARKING
MS245
MS245
QFN – RGY
VFBGA – GQN
Tape and reel
Tape and reel
–40°C to 85°C
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
SN74AUC245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES419A–JANUARY 2003–REVISED MARCH 2005
GQN PACKAGE
(TOP VIEW)
1
2
3
4
A
B
C
D
E
TERMINAL ASSIGNMENTS
1
2
3
4
A
B
C
D
A1
A3
A5
A7
DIR
B2
A4
B6
A8
VCC
A2
B4
A6
B8
OE
B1
B3
B5
B7
E
GND
FUNCTION TABLE
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
A data to B bus
Isolation
L
H
H
X
LOGIC DIAGRAM (POSITIVE LOGIC)
1
2
DIR
19
OE
A1
18
B1
To Seven Other Channels
Pin numbers shown are for the RGY package.
2
SN74AUC245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES419A–JANUARY 2003–REVISED MARCH 2005
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted)
MIN
–0.5
–0.5
–0.5
–0.5
MAX
3.6
UNIT
V
VCC
VI
Supply voltage range
Input voltage range(2)
Voltage range applied to any output in the high-impedance or power-off state(2)
Output voltage range(2)
3.6
V
VO
VO
IIK
3.6
V
VCC + 0.5
–50
V
Input clamp current
VI < 0
mA
mA
mA
mA
IOK
IO
Output clamp current
VO < 0
–50
Continuous output current
Continuous current through VCC or GND
±20
±100
78
GQN package(3)
RGY package(4)
θJA
Package thermal impedance
Storage temperature range
°C/W
°C
37
Tstg
–65
150
(1) 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.
(2) The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
(4) The package thermal impedance is calculated in accordance with JESD 51-5.
Recommended Operating Conditions(1)
MIN
0.8
MAX
UNIT
VCC
Supply voltage
2.7
V
VCC = 0.8 V
VCC
3.6
VIH
High-level input voltage
VCC = 1.1 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 0.8 V
0.65 × VCC
1.7
3.6
V
3.6
0
VIL
VO
Low-level input voltage
Output voltage
VCC = 1.1 V to 1.95 V
VCC = 2.3 V to 2.7 V
Active state
0
0
0
0
0.35 × VCC
V
V
0.7
VCC
3.6
–0.7
–3
–5
–8
–9
0.7
3
3-state
VCC = 0.8 V
VCC = 1.1 V
IOH
High-level output current
Low-level output current
VCC = 1.4 V
mA
mA
VCC = 1.65 V
VCC = 2.3 V
VCC = 0.8 V
VCC = 1.1 V
IOL
VCC = 1.4 V
5
VCC = 1.65 V
VCC = 2.3 V
8
9
∆t/∆v
Input transition rise or fall rate
Operating free-air temperature
20
85
ns/V
TA
–40
°C
(1) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
3
SN74AUC245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES419A–JANUARY 2003–REVISED MARCH 2005
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
0.8 V to 2.7 V
0.8 V
MIN TYP(1) MAX
VCC – 0.1
UNIT
IOH = –100 µA
IOH = –0.7 mA
IOH = –3 mA
0.55
1.1 V
0.8
1
VOH
V
IOH = –5 mA
1.4 V
IOH = –8 mA
1.65 V
2.3 V
1.2
1.8
IOH = –9 mA
IOL = 100 µA
IOL = 0.7 mA
IOL = 3 mA
0.8 V to 2.7 V
0.8 V
0.2
0.25
1.1 V
0.3
0.4
0.45
0.6
±5
VOL
V
IOL = 5 mA
1.4 V
IOL = 8 mA
1.65 V
2.3 V
IOL = 9 mA
II
All inputs
VI = VCC or GND
VI or VO = 2.7 V
VO = VCC or GND
VI = VCC or GND,
VI = VCC or GND
VO = VCC or GND
0 to 2.7 V
0
µA
µA
µA
µA
pF
pF
Ioff
±10
±10
20
(2)
IOZ
ICC
Ci
2.7 V
IO = 0
0.8 V to 2.7 V
2.5 V
2.5
7.5
3
Cio
2.5 V
8
(1) All typical values are at TA = 25°C.
(2) For I/O ports, the parameter IOZ includes the input leakage current.
Switching Characteristics
over recommended operating free-air temperature range, CL = 15 pF (unless otherwise noted) (see Figure 1)
VCC = 1.2 V VCC = 1.5 V
± 0.1 V ± 0.1 V
VCC = 1.8 V
± 0.15 V
VCC = 2.5 V
± 0.2 V
VCC = 0.8 V
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
TYP
5
MIN MAX MIN MAX MIN TYP MAX MIN MAX
tpd
ten
tdis
A or B
OE
B or A
A or B
A or B
1
1.2
1.9
3.2
4.9
5.7
0.6
1
2
3
4
0.5
0.8
0.9
1
1.2
1.9
1.7
2.4
4.1
0.4
0.6
0.6
1.4
1.8
2.9
ns
ns
ns
9
OE
9.5
1.2
Switching Characteristics
over recommended operating free-air temperature range, CL = 30 pF (unless otherwise noted) (see Figure 1)
VCC = 1.8 V
± 0.15 V
VCC = 2.5 V
± 0.2 V
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
MIN
TYP
1.3
1.5
2.2
MAX
2.2
3
MIN
0.5
1.1
0.8
MAX
1.8
tpd
ten
tdis
A or B
OE
B or A
A or B
A or B
0.6
1.1
1.6
ns
ns
ns
2.4
OE
4
2.6
4
SN74AUC245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES419A–JANUARY 2003–REVISED MARCH 2005
Operating Characteristics
TA = 25°C
VCC = 0.8 V
TYP
VCC = 1.2 V
TYP
VCC = 1.5 V
TYP
VCC = 1.8 V
TYP
VCC = 2.5 V
TYP
TEST
CONDITIONS
PARAMETER
UNIT
Outputs
enabled
20
1
21
1
21
1
23
1
27
1
Power
dissipation
capacitance
Cpd
f = 10 MHz
pF
Outputs
disabled
5
SN74AUC245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES419A–JANUARY 2003–REVISED MARCH 2005
PARAMETER MEASUREMENT INFORMATION
2 × V
CC
TEST
/t
PLH PHL
S1
Open
2 × V
S1
Open
GND
R
L
t
t
From Output
Under Test
t
/t
PLZ PZL
CC
/t
GND
PHZ PZH
C
L
R
L
(see Note A)
C
L
V
∆
R
L
V
CC
0.8 V
2 kΩ
2 kΩ
2 kΩ
2 kΩ
2 kΩ
1 kΩ
500 Ω
0.1 V
0.1 V
0.1 V
15 pF
15 pF
15 pF
15 pF
15 pF
30 pF
30 pF
1.2 V ± 0.1 V
1.5 V ± 0.1 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
LOAD CIRCUIT
0.15 V
0.15 V
0.15 V
0.15 V
V
CC
Timing Input
V /2
CC
0 V
t
w
t
su
t
h
V
CC
V
CC
V /2
CC
V /2
CC
Input
V /2
CC
V /2
CC
Data Input
0 V
0 V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
V
V
CC
CC
Output
Control
V
CC
/2
V
CC
/2
V /2
CC
V /2
CC
Input
0 V
V
0 V
t
t
t
PLZ
t
t
PHL
PZL
PLH
Output
Waveform 1
V
OH
CC
V
/2
/2
V
V
/2
/2
V
CC
/2
CC
CC
Output
S1 at 2 × V
V
OL
+ V
PHZ
CC
∆
V
OL
V
OL
(see Note B)
t
t
PZH
t
PHL
PLH
/2
Output
Waveform 2
S1 at GND
V
OH
V
OH
V
OH
- V
∆
V
CC
V
CC
CC
Output
≈0 V
V
OL
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. C includes probe and jig capacitance.
L
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z = 50 Ω, slew rate ≥ 1 V/ns.
O
D. The outputs are measured one at a time, with one transition per measurement.
E.
F.
G.
t
t
t
and t
and t
and t
are the same as t
.
dis
.
PLZ
PZL
PLH
PHZ
are the same as t
PZH
en
are the same as t .
PHL pd
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
6
PACKAGE OPTION ADDENDUM
www.ti.com
4-Oct-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
VFBGA
QFN
Drawing
SN74AUC245GQNR
SN74AUC245RGYR
ACTIVE
ACTIVE
GQN
20
20
1000
TBD
SNPB
Level-1-240C-UNLIM
RGY
1000 Green (RoHS & CU NIPDAU Level-2-260C-1YEAR
no Sb/Br)
SN74AUC245ZQNR
ACTIVE
VFBGA
ZQN
20
1000 Green (RoHS &
no Sb/Br)
SNAGCU
Level-1-260C-UNLIM
(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) 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
IMPORTANT NOTICE
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enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
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TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
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TI assumes no liability for applications assistance or customer product design. Customers are responsible for
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Copyright 2005, Texas Instruments Incorporated
SN74AUC245ZQNR CAD模型
引脚图
封装焊盘图
SN74AUC245ZQNR 替代型号
| 型号 | 制造商 | 描述 | 替代类型 | 文档 |
| SN74AUC245RGYR | TI | OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS | 完全替代 |
|
| SN74AUC244RGYR | TI | OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS | 类似代替 |
|
SN74AUC245ZQNR 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| SN74AUC2G00 | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00DCTR | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00DCTRE4 | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00DCTRG4 | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00DCUR | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00DCURE4 | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00DCURG4 | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00YEPR | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00YZPR | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
| SN74AUC2G00_07 | TI | DUAL 2-INPUT POSITIVE-NAND GATE | 获取价格 |
|
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