74FST3245DWR2(2001) Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
74FST3245DWR2 Datasheet PDF : 8 Pages
| |||
74FST3245
8-Bit Bus Switch
The ON Semiconductor 74FST3245 is an 8–bit, high performance
switch. The device is CMOS TTL compatible when operating between
4 and 5.5 Volts. The device exhibits extremely low RON and adds
nearly zero propagation delay. The device adds no noise or ground
bounce to the system.
The device consists of an 8–bit switch. Port A is connected to Port B
when OE is low. If OE is high, the switch is high Z.
• RON t 4 W Typical
• Less Than 0.25 ns–Max Delay Through Switch
• Nearly Zero Standby Current
• No Circuit Bounce
• Control Inputs are TTL/CMOS Compatible
• Pin–For–Pin Compatible with QS3245, FST3245, CBT3245
• All Popular Packages: QSOP–20, TSSOP–20, SOIC–20
NC 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
Figure 1. 20–Lead Pinout
OE 19
2
A0
18
B0
9
A7
11
B7
Figure 2. Logic Diagram
TRUTH TABLE
Input OE
L
H
Function
Connect
Disconnect
© Semiconductor Components Industries, LLC, 2001
1
August, 2001 – Rev. 0
http://onsemi.com
20
1
SO–20
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
FST3245
AWLYYWW
1
20
1
TSSOP–20
DT SUFFIX
CASE 948E
20
FST
3245
ALYW
1
20
1
QSOP–20
QS SUFFIX
CASE 492A
20
FST3245
AWLYWW
1
A
= Assembly Location
L, WL = Wafer Lot
Y
= Year
W, WW = Work Week
PIN NAMES
Pin
OE1, OE2
1A, 2A
1B, 2B
Description
Bus Switch Enables
Bus A
Bus B
ORDERING INFORMATION
Device
74FST3245DW
Package
SO–20
74FST3245DWR2 SO–20
74FST3245DT TSSOP–20
74FST3245DTR2
74FST3245QS
74FST3245QSR
TSSOP–20
QSOP–20
QSOP–20
Shipping
38 Units/Rail
1000 Units/Reel
75 Units/Rail
2500 Units/Reel
55 Units/Rail
2500 Units/Reel
Publication Order Number:
74FST3245/D
Share Link: 