參數(shù)資料
型號(hào)： CBT3245PWDH
廠商： NXP SEMICONDUCTORS
元件分類： 通用總線功能
英文描述： Octal bus switch with output enable
中文描述： OCTAL 1-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝： PLASTIC, SOT-360, TSSOP-20
文件頁數(shù)： 2/10頁
文件大小： 81K
代理商： CBT3245PWDH
Philips Semiconductors
Preliminary specification
CBT3245
Octal bus switch with output enable
2
1998 Dec 08
FEATURES
Functionally equivalent to QS3245
Standard ’245-type pinout
5
switch connection between two ports
TTL compatible control input levels
Package options include plastic small outline (D), shrink small
outline (DB), thin shrink small outline (TSSOP)
DESCRIPTION
The CBT3245 provides eight bits of high-speed TTL-compatible bus
switching in a standard ’245 device pinout. The low on-state
resistance of the switch allows connections to be made with minimal
propagation delay.
The CBT3245 device is organized as one 8-bit switch. When enable
(OE) is low, the switch is on and port A is connected to port B.
When OE is high, the switch is open and a high-impedance state
exists between the two ports.
The CBT3245 is characterized for operation from –40
°
C
to 85
°
C.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
T
amb
= 25
°
C; GND = 0V
TYPICAL
UNIT
t
PLH
t
PHL
Propagation delay
An to Yn
C
L
= 50pF; V
CC
= 5V
ns
C
IO(OFF)
Pin capacitance (OFF state)
V
O
= 3V or 0V
6
pF
I
CCZ
Total supply current
Outputs disabled; V
CC
=5.5V
μ
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
20-Pin plastic SO
–40
°
C
to 85
°
C
CBT3245 D
CBT3245 D
SOT163-1
20-Pin Plastic SSOP Type II
–40
°
C
to 85
°
C
CBT3245 DB
CBT3245 DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40
°
C
to 85
°
C
CBT3245 PW
CBT3245PW DH
SOT360-1
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
NC
A1
A2
A3
A4
A5
A6
A7
A8
B7
GND
B6
B5
B4
B3
B2
B1
OE
V
CC
B8
SA00507
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1
NC
No internal connection
19
OE
Output enable input
2, 3, 4, 5, 6, 7, 8, 9
A1–A8
18, 17, 16, 15, 14,
13, 12, 11
B1–B8
10
GND
Ground (0V)
20
V
CC
Positive supply voltage
相關(guān)PDF資料
PDF描述
CBT3245 Octal bus switch with output enable
CBT3245D Octal bus switch with output enable
CBT3245DB Octal bus switch with output enable
CBT3257A Quad 1-of-2 multiplexer/demultiplexer
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