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參數(shù)資料
| 型號： | SN74F2245DB |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination 8-SOIC 0 to 70 |
| 中文描述： | 25歐姆八路總線收發(fā)器具有三態(tài)輸出 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 84K |
| 代理商： | SN74F2245DB |
SN74F2245
25-
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SDFS099 – MAY 1995
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
Package Options Include Plastic
Small-Outline (DB) Packages and Plastic
300-mil DIPs (N)
description
The SN74F2245 is designed for asynchronous
communication between data buses. The devices
transmit 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 12 mA; 25-
resistors are included in the lower output circuit to reduce
overshoot and undershoot.
The SN74F2245 is characterized for operation from 0
°
C to 70
°
C.
FUNCTION TABLE
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
logic symbol
logic diagram (positive logic)
A5
6
A6
7
A7
8
A8
9
A2
3
A3
4
A4
5
OE
A1
2
G3
19
3EN2[AB]
B5
14
B6
13
B7
12
B8
11
B1
18
B2
17
B3
16
B4
15
3EN1[BA]
1
DIR
DIR
OE
A1
B1
1
2
18
19
To Seven Other Channels
1
2
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
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.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
DB OR N PACKAGE
(TOP VIEW)
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.
Copyright
1995, Texas Instruments Incorporated
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| SN74F2373DB | 25-ohm OCTAL TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS |
| SN74F2373DW | NiCd/NiMH Charge Controller with dT/dt Termination 8-PDIP 0 to 70 |
| SN74F2373N | NiCd/NiMH Charge Controller with dT/dt Termination 8-PDIP 0 to 70 |
| SN74F240DB | NiCd/NiMH Charge Controller with dT/dt Termination 8-SOIC 0 to 70 |
| SN54F240FK | 32Kx8 Nonvolatile SRAM, 5% Voltage Tolerance 28-DIP MODULE 0 to 70 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SN74F2245DBLE | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74F2245DBR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74F2245DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74F2245DWR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74F2245N | 制造商:Texas Instruments 功能描述: |
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