74CBTLV3384QG

INDUSTRIAL TEMPERATURE RANGE
IDT74CBTLV3384
LOW-VOLTAGE 10-BIT BUS SWITCH
1
DECEMBER 2014INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 2014 Integrated Device Technology, Inc. DSC-5742/6
IDT74CBTLV3384
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
•5
ΩΩ
ΩΩ
Ω A/B bi-directional bus switch
Isolation under power-off conditions
Over-voltage tolerant
Latch-up performance exceeds 100mA
•VCC = 2.3V - 3.6V, Normal Range
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
Available in QSOP and TSSOP packages
APPLICATIONS:
3.3V High Speed Bus Switching and Bus Isolation
SIMPLIFIED SCHEMATIC, EACH SWITCH
LOW-VOLTAGE 10-BIT
BUS SWITCH
DESCRIPTION:
The CBTLV3384 is a ten bit high-speed bus switch with low on-state
resistance of the switch allowing connections to be made with minimal
propagation delay.
The device is organized as dual 5-bit bus switches with separate output-
enable (OE) inputs, to allow use as two 5-bit bus switches or one 10-bit bus
switch. When OE is low, the associated 5-bit bus switch is on and A port is
connected to B port. When OE is high, the switch is open, and a high-
impedance state exists between the two ports.
To ensure the high-impedance state during power up or power down,
OE should be tied to V
CC through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking capability of the driver.
3
11
1
1A1
1A5
1OE
SW
SW
1B5
1B1
2
10
14
22
13
2A1
2A5
2OE
SW
SW
2B5
2B1
15
10
OE
A
B
INDUSTRIAL TEMPERATURE RANGE
2
IDT74CBTLV3384
LOW-VOLTAGE 10-BIT BUS SWITCH
PIN CONFIGURATION
QSOP/ TSSOP
TOP VIEW
Symbol Description Max Unit
VCC SupplyVoltage Range –0.5 to +4.6 V
VI Input Voltage Range –0.5 to +4.6 V
Continuous Channel Current 128 mA
IIK Input Clamp Current, VI/O < 0 50 mA
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.
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High Impedance
Input Inputs/Outputs
1OE 2OE 1B1 - 1B52B1 - 2B5
LL1A1 - 1A52A1 - 2A5
LH1A1 - 1A5 Z
HL Z2A1 - 2A5
HH Z Z
FUNCTION TABLE
(1)
Symbol Parameter Test Conditions Min. Max. Unit
VCC Supply Voltage 2.3 3.6 V
V
IH High-Level Control Input Voltage VCC = 2.3V to 2.7V 1.7 V
VCC = 2.7V to 3.6V 2
VIL Low-Level Control Input Voltage VCC = 2.3V to 2.7V 0.7 V
VCC = 2.7V to 3.6V 0.8
T
A Operating Free-Air Temperature 40 85 ° C
OPERATING CHARACTERISTICS, TA = 25°C
(1)
NOTE:
1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
VCC
2A5
2A4
2B4
2B3
2A3
2A2
2B2
2B1
1B1
1A1
1A2
1B2
1B3
1A3
1A4
1B4
1B5
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
1OE
21
22
23
24
2A1
2OE
1A
5
GND
2B
5
INDUSTRIAL TEMPERATURE RANGE
IDT74CBTLV3384
LOW-VOLTAGE 10-BIT BUS SWITCH
3
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIK Control Inputs, Data I/O VCC = 3V, II = –18mA –1.2 V
II Control Inputs, Data I/O VCC = 3.6V, VI = VCC or GND ±1 μA
IOZ Data I/O VCC = 3.6V, VO = 0 or 3.6V, switch disabled 5 μA
IOFF VCC = 0, VI or VO = 0 to 3.6V 50 μA
ICC VCC = 3.6V, IO = 0, VI = VCC or GND 10 μA
ΔICC
(1)
Control Inputs VCC = 3.6V, one input at 3V, other inputs at VCC or GND 300 μA
CI Control Inputs VI = 3V or 0 4 pF
CIO(OFF) VO = 3V or 0, OE = VCC —7 —pF
Max. at V
CC = 2.3V VI = 0 IO = 64mA 5 8
Typ. at VCC = 2.5V IO = 24mA 5 8
R
ON
(2)
VI = 1.7V IO = 15mA 27 40 Ω
V
I = 0 IO = 64mA 5 7
VCC = 3V IO = 24mA 5 7
VI = 2.4V IO = 15mA 10 15
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Conditions: TA = –40°C to +85°C
NOTES:
1. The increase in supply current is attributable to each current that is at the specified voltage level rather than VCC or GND.
2. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by the lower of the voltages
of the two (A or B ) terminals.
NOTE:
1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance driven by an ideal voltage source
(zero output impedance).
SWITCHING CHARACTERISTICS
VCC = 2.5V ± 0.2V VCC = 3.3V ± 0.3V
Symbol Parameter Min. Max. Min. Max. Unit
tPD
(1)
Propagation Delay 0.15 0.25 ns
A to B or B to A
tEN Output Enable Time 1 5 1 4.3 ns
OE to A or B
tDIS Output Disable Time 1 5.5 1 5.5 ns
OE to A or B

74CBTLV3384QG

Mfr. #:
Manufacturer:
IDT
Description:
Digital Bus Switch ICs Low-Voltage 10-bit B us Switch
Lifecycle:
New from this manufacturer.
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