參數(shù)資料
型號: SN74ABT652DBR
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝: PLASTIC, SSOP-24
文件頁數(shù): 4/11頁
文件大?。?/td> 182K
代理商: SN74ABT652DBR
SN54ABT652, SN74ABT652
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3STATE OUTPUTS
SCBS070D JULY 1991 REVISED JULY 1994
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
description (continued)
The SN54ABT652 is characterized for operation over the full military temperature range of 55
°C to 125°C. The
SN74ABT652 is characterized for operation from 40
°C to 85°C.
FUNCTION TABLE
INPUTS
DATA I/O
OPERATION OR FUNCTION
OEAB
OEBA
CLKAB
CLKBA
SAB
SBA
A1 THRU A8
B1 THRU B8
OPERATION OR FUNCTION
L
H
H or L
X
Input
Isolation
L
H
↑↑
X
Input
Store A and B data
X
H
H or L
X
Input
Unspecified
Store A, hold B
H
↑↑
X
Input
Output
Store A in both registers
L
X
H or L
X
Unspecified
Input
Hold A, store B
L
↑↑
XX
Output
Input
Store B in both registers
L
X
L
Output
Input
Real-time B data to A bus
L
X
H or L
X
H
Output
Input
Stored B data to A bus
H
X
L
X
Input
Output
Real-time A data to B bus
H
H or L
X
H
X
Input
Output
Stored A data to B bus
H
L
H or L
H
Output
Stored A data to B bus and
stored B data to A bus
The data output functions may be enabled or disabled by a variety of level combinations at the OEAB or OEBA inputs. Data input functions are
always enabled; i.e., data at the bus pins is stored on every low-to-high transition on the clock inputs.
Select control = L; clocks can occur simultaneously.
Select control = H; clocks must be staggered in order to load both registers.
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