參數(shù)資料
型號(hào): CBT3257A
廠商: NXP Semiconductors N.V.
英文描述: Quad 1-of-2 multiplexer/demultiplexer
中文描述: 四2選1多路復(fù)用解復(fù)用器
文件頁(yè)數(shù): 4/16頁(yè)
文件大?。?/td> 89K
代理商: CBT3257A
9397 750 12921
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 27 October 2005
4 of 16
Philips Semiconductors
CBT3257A
Quad 1-of-2 multiplexer/demultiplexer
6.
Functional description
Refer to
Figure 1 “Logic diagram of CBT3257A (positive logic)”
.
6.1 Function table
7.
Limiting values
[1]
The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings
are observed.
8.
Recommended operating conditions
Table 3:
H = HIGH voltage level; L = LOW voltage level; X = Don’t care
Inputs
Function
OE
S
L
L
A port = B1 port
L
H
A port = B2 port
H
X
disconnect
Function selection
Table 4:
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
V
CC
supply voltage
V
I
input voltage
I
CCC
continuous current through
each V
CC
or GND pin
I
IK
input clamping current
T
stg
storage temperature
Limiting values
Conditions
Min
0.5
Max
+7.0
+7.0
128
Unit
V
V
mA
[1]
0.5
-
V
I
< 0 V
-
65
50
+150
mA
°
C
Table 5:
All unused control inputs of the device must be held at V
CC
or GND to ensure proper device
operation.
Symbol
Parameter
Conditions
V
CC
supply voltage
V
IH
HIGH-state input voltage
V
IL
LOW-state input voltage
T
amb
ambient temperature
operating in free-air
Operating conditions
Min
4.5
2.0
-
40
Typ
-
-
-
-
Max
5.5
-
0.8
+85
Unit
V
V
V
°
C
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