74CBTLV6800
LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
LOW-VOLTAGE 10-BIT
BUS SWITCH WITH
PRECHARGED OUTPUTS
FEATURES:
74CBTLV6800
DESCRIPTION:
•
•
•
•
•
•
•
Functionally equivalent to QS3800
Ω A/B bi-directional switch
5Ω
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
The CBTLV6800 provides 10-bits of high-speed bus switching with low
on-state resistance of the switch allowing connections to be made with
minimal propagation delay. The device also precharges the B port to a
user-selectable bias voltage (BIASV) to minimize live-insertion noise.
The CBTLV6800 is organized as a single 10-bit bus switch with a single
output-enable (OE) input. When OE is low, the 10-bit bus 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, and port B is precharged
to BIASV through the equivalent of a 10-kΩ resistor.
To ensure the high-impedance state during power up or power down,
OE should be tied to VCC through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking capability of the driver.
APPLICATIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
FUNCTIONAL BLOCK DIAGRAM
SIMPLIFIED SCHEMATIC, EACH SWITCH
13
A1
2
SW
23
BIASV
B1
A
A10
OE
11
SW
14
B
B10
1
OE
INDUSTRIAL TEMPERATURE RANGE
MAY 2019
1
© 2019 Integrated Device Technology, Inc.
DSC-5739/6
74CBTLV6800
LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
OE
1
24
VCC
A1
2
23
B1
A2
3
22
B2
A3
4
21
B3
A4
5
20
B4
A5
6
19
B5
A6
7
18
B6
A7
8
17
B7
A8
9
16
B8
A9
10
15
B9
A10
11
14
B10
GND
12
13
BIASV
Max
Unit
VCC
SupplyVoltage Range
Description
–0.5 to +4.6
V
VI
Input Voltage Range
–0.5 to +4.6
V
128
mA
–50
mA
–65 to +150
°C
Continuous Channel Current
IIK
Input Clamp Current, VI/O < 0
TSTG
Storage Temperature
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.
FUNCTION TABLE(1)
Input OE
Inputs/Outputs
L
H
A Port = B Port
A Port = Z
B Port = BIASV
TOP VIEW
Package Type
Package Code
Order Code
TSSOP
PGG24
PGG
QSOP
PCG24
QG
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-Impedance
OPERATING CHARACTERISTICS, TA = 25°C(1)
Symbol
VCC
BIASV
Parameter
Test Conditions
Supply Voltage
Bias Voltage
Min.
Max.
Unit
2.3
3.6
V
1.3
VCC
V
1.7
—
V
VIH
High-Level Control Input Voltage
VCC = 2.3V to 2.7V
VCC = 2.7V to 3.6V
2
—
VIL
Low-Level Control Input Voltage
VCC = 2.3V to 2.7V
—
0.7
—
0.8
TA
Operating Free-Air Temperature
−40
85
VCC = 2.7V to 3.6V
NOTE:
1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
2
V
°C
74CBTLV6800
LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Conditions: TA = –40°C to +85°C
Symbol
VIK
II
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Control Inputs, Data Inputs
VCC = 3V, II = –18mA
—
—
–1.2
V
Control Inputs
VCC = 3.6V, VI = VCC or GND
—
—
±1
µA
VCC = 3.6V, VO = 0 or 3.6V, switch disabled
—
—
±20
µA
IOFF
VCC = 0, VI or VO = 0 to 3.6V
—
—
50
µA
|I O |
VCC = 3V, BIASV = 2.4V, VO = 0, OE = VCC
0.25
—
—
mA
ICC
VCC = 3.6V, IO = 0, VI = VCC or GND
—
—
10
µA
IOZ
Data I/O
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
VO = 3V or 0, switch OFF, BIASV = Open, OE = VCC
—
7
—
pF
VI = 0
—
—
—
—
—
—
5
5
27
5
5
10
8
8
40
7
7
15
CIO(OFF)
VCC = 2.3V
Typ. at VCC = 2.5V
RON(2)
II = 64mA
II = 24mA
II = 15mA
II = 64mA
II = 24mA
II = 15mA
VI = 1.7V
VI = 0
VCC = 3V
VI = 2.4V
Ω
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.
SWITCHING CHARACTERISTICS
VCC = 2.5V ± 0.2V
Symbol
tPD
(1)
Parameter
Propagation Delay
VCC = 3.3V ± 0.3V
Min.
Max.
Min.
Max.
Unit
−
0.15
−
0.25
ns
1
4.8
1
4.5
ns
1
5.6
1
5.5
ns
A to B or B to A
tPZH
BIASV = 3V or GND
tPZL
OE to A or B
tPHZ
BIASV = 3V or GND
tPLZ
OE to A or B
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).
3
74CBTLV6800
LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS
TEST CIRCUITS AND WAVEFORMS
SAME PHASE
INPUT TRANSITION
TEST CONDITIONS
Symbol
VCC(1)= 3.3V±0.3V
VCC(2)= 2.5V±0.2V
Unit
VLOAD
6
2 x Vcc
V
VIH
3
Vcc
V
VT
1.5
Vcc / 2
V
VLZ
300
150
mV
VHZ
300
150
mV
CL
50
30
pF
Pulse(1, 2)
Generator
tPLH
tPHL
VIH
VT
0V
DISABLE
ENABLE
CONTROL
INPUT
GND
tPZL
D.U.T.
OUTPUT
SWITCH
NORMALLY
CLOSED
LOW
tPZH
OUTPUT SWITCH
NORMALLY
OPEN
HIGH
500Ω
CL
tPLZ
VLOAD/2
VT
tPHZ
VT
0V
Test Circuits for All Outputs
Enable and Disable Times
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
NOTES:
1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2.5ns.
SWITCH POSITION
Test
Switch
tPLZ/tPZL
VLOAD
tPHZ/tPZH
GND
tPD
Open
VIH
VT
0V
VOH
VT
VOL
Propagation Delay
VOUT
RT
tPHL
OPPOSITE PHASE
INPUT TRANSITION
Open
500Ω
tPLH
OUTPUT
VLOAD
VCC
VIN
INDUSTRIAL TEMPERATURE RANGE
4
VIH
VT
0V
VLOAD/2
VOL + VLZ
VOL
VOH
VOH -VHZ
0V
74CBTLV6800
LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
CBTLV
XXX
XX
XX
X
Device Type Package
Temp. Range
X
Blank
8
Tube
Tape and Reel
G
Green
Q
PG
Quarter-size Small Outline Package (PCG24)
Thin Shrink Small Outline Package (PGG24)
6800
Low-Voltage 10-Bit Bus Switch with Precharged Outputs
74
–40°C to +85°C
Orderable Part Information
Speed
(ns)
Pkg.
Code
Pkg.
Type
Temp.
Grade
74CBTLV6800PGG
PGG24
TSSOP
I
74CBTLV6800PGG8
PGG24
TSSOP
I
74CBTLV6800QG
PCG24
QSOP
I
74CBTLV6800QG8
PCG24
QSOP
I
Orderable Part ID
Datasheet Document History
12/18/2014
Pg. 5
05/06/2019
Pg. 2,6
Updated the ordering information by removing the "IDT" notation, non RoHS part and by
adding Tape and Reel information.
Added table under pin configuration diagram with detailed package information and orderable part information table. Updated
the ordering information diagram in clearer detail.
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for SALES:
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fax: 408-284-2775
www.idt.com
5
for Tech Support:
logichelp@idt.com
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