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QS32X245Q2G8

P1-P3P4-P5
1
IDTQS32X245
HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
FEBRUARY 2011
2011 Integrated Device Technology, Inc. DSC-5726/5c
IDTQS32X245
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
HIGH-SPEED CMOS
QUICKSWITCH
DOUBLE-WIDTH BUS SWITCH
FUNCTIONAL BLOCK DIAGRAM
IDT and the IDT logo registered trademarks of Integrated Device Technology, Inc.
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
•5
ΩΩ
ΩΩ
Ω bidirectional switches connect inputs to outputs
• Dual '245 function
• Zero propagation delay, zero ground bounce
• Undershoot clamp diodes on all switch and control inputs
• TTL-compatible control inputs
• Available in 40-pin QVSOP package
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Bus switching and isolation
• Power conservation
• Clock gating
• Logic replacement
B
0
OE
1
A
0
B
1
A
1
B
2
A
2
B
3
A
3
B
4
A
4
B
5
A
5
B
6
A
6
B
7
A
7
B
8
OE
2
A
8
B
9
A
9
B
10
A
10
B
11
A
11
B
12
A
12
B
13
A
13
B
14
A
14
B
15
A
15
DESCRIPTION:
The QS32X245 provides a set of 16 high-speed CMOS TTL-compatible
bus switches in a flow-through pinout. The low ON resistance of the
QS32X245 allows inputs to be connected to outputs without adding propa-
gation delay and without generating additional ground bounce noise. The
Output Enable (OEn) signals turn the switches on similar to the OEn signal
of the 74'245.
QuickSwitch devices provide an order of magnitude faster speed than
conventional logic devices.
The QS32X245 is characterized for operation at -40°C to +85°C.
2
INDUSTRIAL TEMPERATURE RANGE
IDTQS32X245
HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH
PIN CONFIGURATION
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-Impedance
FUNCTION TABLE
(1)
CAPACITANCE
(TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V)
NOTE:
1. This parameter is measured at characterization but not tested.
Pins Typ. Max.
(1)
Unit
Control Pins 3 5 pF
Quickswitch Channels (Switch OFF) 5 7 pF
Symbol Description Max Unit
VTERM
(2)
Supply Voltage to Ground –0.5 to +7 V
VTERM
(3)
DC Switch Voltage Vs –0.5 to +7 V
VTERM
(3)
DC Input Voltage VIN –0.5 to +7 V
VAC AC Input Voltage (pulse width ≤ 20ns) –3 V
IOUT DC Output Current 120 mA
PMAX Maximum Power Dissipation (TA = 85°C) 0.92 W
T
STG Storage Temperature –65 to +150 °C
ABSOLUTE MAXIMUM RATINGS
(1)
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. Vcc terminals.
3. All terminals except Vcc.
QVSOP
TOP VIEW
PIN DESCRIPTION
Pin Names I/O Description
OE1, OE2 I Bus Enable
An I/O Bus A
Bn I/O Bus B
OE1 OE2 A0 - A7 A8 - A15 Function
H H Z Z Disconnect
LHB0 - B7 Z Connect
HL ZB8 - B15 Connect
LLB0 - B7 B8 - B15 Connect
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
GND
NC
OE1
Vcc
OE2
V
CC
NC
GND
A
0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A11
A10
A12
A13
A15
A14
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
B11
B10
B12
B13
B15
B14
3
IDTQS32X245
HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
RON
(ohms)
VIN
(Volts)
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
Symbol Parameter Test Conditions Min. Typ.
(1)
Max. Unit
VIH Input HIGH Level Guaranteed Logic HIGH for Control Pins 2 — — V
VIL Input LOW Level Guaranteed Logic LOW for Control Pins — — 0.8 V
IIN Input LeakageCurrent (Control Inputs) 0V ≤ VIN ≤ VCC — ±0.01 ±1 μA
IOZ Off-State Output Current (Hi-Z) 0V ≤ VOUT ≤ VCC, Switches OFF — ±0.01 ±1 μA
R
ON Switch ON Resistance VCC = Min., VIN = 0V, ION = 30mA — 5 7 Ω
VCC = Min., VIN = 2.4V, ION =15mA — 10 15
VP Pass Voltage
(2)
VIN = VCC = 5V, IOUT = -5μA 3.7 4 4.2 V
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%
NOTES:
1. Typical values are at V
CC = 5.0V, TA = 25°C.
2. Pass Voltage is guaranteed but not production tested.
16
14
12
10
8
6
4
2
0
0.0 0.5
1.0
1.5 2.0 2.5 3.0 3.5
P1-P3P4-P5

QS32X245Q2G8

Mfr. #:
Buy QS32X245Q2G8
Manufacturer:
IDT
Description:
Digital Bus Switch ICs Double Width Bus Switch
Lifecycle:
New from this manufacturer.
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