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參數(shù)資料
| 型號(hào)： | MC74F2245 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Supply Voltage Supervisor w/Watchdog input, RESET, /RESET 5-SOT-23 -40 to 85 |
| 中文描述： | 25ohm八路雙向收發(fā)器具有三態(tài)輸入和輸出 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 137K |
| 代理商： | MC74F2245 |
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1996
1
2/96
REV 0
"
! ! !
The MC74F2245 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 upon the logic level at the
direction control (DIR) input. The output enable (OE) input disables the
device so the buses are effectively isolated.
Both A and B outputs can sink up to 12mA; 25
resistors are included
in the lower output circuit to reduce overshoot and undershoot.
The MC74F2245 is characterized for operation from 0
°
C to 70
°
C.
3–State Outputs Drive Bus Lines or Buffer Memory Address Registers
Package Options Include Plastic SOIC (DW–Suffix) and Plastic SSOP
(SD–Suffix)
11
12
13
14
15
16
17
18
19
VCC
20
1
2
3
4
5
6
7
OE
B0
B1
B2
B4
B3
A1
T/R
A0
A2
A3
A5
A4
CONNECTION DIAGRAM
(TOP VIEW)
8
9
10
B5
B7
B6
A6
GND
A7
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
4.5
5.0
5.5
V
TA
Operating Ambient Temperature Range
0
25
70
°
C
IOH
Output Current — High
Outputs
–3.0
mA
IOL
Output Current — Low
Outputs
12
mA
25
OCTAL BIDIRECTIONAL
TRANSCEIVER WITH 3–STATE
INPUTS AND OUTPUTS
FAST
SCHOTTKY TTL
DW SUFFIX
PLASTIC SOIC
CASE 751D–04
SD SUFFIX*
PLASTIC SSOP
CASE 940C–03
*Thermal Mounting Techniques are
Recommended. Please refer to Motorola
Application Note AN1567/D.
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