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參數資料
| 型號： | 74VHC245T |
| 廠商： | 意法半導體 |
| 英文描述： | Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 中文描述： | 八路總線收發器三態 |
| 文件頁數： | 2/8頁 |
| 文件大小： | 66K |
| 代理商： | 74VHC245T |
PIN DESCRIPTION
PIN No
1
2, 3, 4, 5,
6, 7, 8, 9
18, 17, 16,
15, 14, 13,
12, 11
19
10
20
SYMBOL
DIR
A1 to A8
NAME AND FUNCTION
Directional Control
Data Inputs/Outputs
B1 to B8
Data Inputs/Outputs
G
Output Enable Input
Ground (0V)
Positive Supply Voltage
GND
V
CC
TRUTH TABLE
INPUT
FUNCTION
OUTPUT
G
L
L
H
DIR
L
H
X
A BUS
OUTPUT
INPUT
Z
B BUS
INPUT
OUTPUT
Z
A = B
B = A
Z
X:”H” or”L”
Z:Highimpedance
INPUT EQUIVALENTCIRCUIT
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
I
V
I/O
V
O
I
IK
I
OK
I
O
I
CC
or I
GND
DC V
CC
or Ground Current
T
stg
Storage Temperature
T
L
Lead Temperature (10 sec)
AbsoluteMaximumRatingsarethosevaluesbeyond whichdamage tothedevicemayoccur. Functionaloperationunderthese condition isnot implied.
Parameter
Value
-0.5 to +7.0
-0.5 to +7.0
-0.5 to V
CC
+ 0.5
-0.5 to V
CC
+ 0.5
- 20
±
20
±
25
±
75
-65 to +150
300
Unit
V
V
V
V
mA
mA
mA
mA
o
C
o
C
Supply Voltage
DC Input Voltage (DIR, G)
Bus I/O Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
I
V
I/O
V
O
T
op
dt/dv
Parameter
Value
2.0 to 5.5
0 to 5.5
0 to V
CC
0 to V
CC
-40 to +85
0 to 100
0 to 20
Unit
V
V
V
V
o
C
ns/V
ns/V
Supply Voltage
Input Voltage (DIR, G)
Bus I/O Voltage
Output Voltage
Operating Temperature
Input Rise and Fall Time (see note 1) (V
CC
= 3.3
±
0.3V)
(V
CC
= 5.0
±
0.5V)
1)V
IN
from30%to70%ofV
CC
74VHC245
2/8
相關PDF資料 |
PDF描述 |
|---|---|
| 74VHC245M | Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 74VHC245 | Octal Bus Transceiver (3-State)(八總線收發器) |
| 74VHC257 | QUAD 2 CHANNEL MULTIPLEXER 3-STATE |
| 74VHC257M | Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 74VHC257T | Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74VHC245TTR | 功能描述:總線收發器 Octal Bus Tranceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74VHC257 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD 2 CHANNEL MULTIPLEXER 3-STATE |
| 74VHC257 WAF | 制造商:Texas Instruments 功能描述: |
| 74VHC257M | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD 2 CHANNEL MULTIPLEXER 3-STATE |
| 74VHC257MTC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2-Input Digital Multiplexer |
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