IDT IDT74CBTLV16210

IDT74CBTLV16210
LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
LOW-VOLTAGE 20-BIT
BUS SWITCH
FEATURES:
IDT74CBTLV16210
DESCRIPTION:
5Ω
Ω A/B bi-directional 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 SSOP, TSSOP, and TVSOP packages
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•
•
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The CBTLV16210 operates as a single 20-bit bus switch or as a dual
10-bit bus switch,which provides high-speed switching. This device has
very low ON resistance, resulting in under 250ps propagation delay
through the switch. When Output Enable (OE) is low, the corresponding
10-bit bus switch is on and port A is connected to Port B. When OE is high,
the switch is off and a high impedance exists between Port A and Port B.
To ensure the high-impedance state during power up or power down,
OE should be tied to VCC through a pullup resistor.
APPLICATIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
FUNCTIONAL BLOCK DIAGRAM
2
SW
1A1
1A10
12
SW
46
36
SIMPLIFIED SCHEMATIC, EACH
SWITCH
1B1
1B10
A
B
48
1OE
2A1
13
SW
35
2B1
OE
2A10
24
SW
25
2B10
47
2OE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
AUGUST 2002
1
c
2002 Integrated Device Technology, Inc.
DSC-5887/4
IDT74CBTLV16210
LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
VCC
NC
1
48
1OE
1A1
2
47
2OE
1A2
3
46
1B1
1A3
4
45
1B2
1A4
5
44
1B3
1A5
6
43
1B4
1A6
7
42
GND
8
41
1B5
GND
1A7
9
40
1B6
1A8
10
39
1B7
1A9
11
38
1B8
1A10
12
37
1B9
2A1
13
36
1B10
Pin Names
VI
IIK
TSTG
Description
Max.
Unit
Supply Voltage Range
–0.5 to 4.6
V
Input Voltage Range
–0.5 to 4.6
V
Continuous Channel Current
128
mA
Input Clamp Current, VI/O < 0
–50
mA
–65 to +150
°C
Storage Temperature Range
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.
PIN DESCRIPTION
2A2
14
35
2B1
VCC
15
34
2B2
xOE
Output Enable (Active LOW)
Port A Inputs or Outputs
Port B Inputs or Outputs
2A3
16
33
2B3
xAx
GND
17
32
GND
xBx
2A4
18
31
2B4
2A5
19
30
2B5
2A6
20
29
2B6
2A7
21
28
2B7
2A8
22
27
2B8
2A9
23
26
2B9
2A10
24
25
2B10
Description
FUNCTION TABLE(1)
Input
OE
Operation
L
A-Port = B-Port
H
Disconnect
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
SSOP/ TSSOP/ TVSOP
TOP VIEW
OPERATING CHARACTERISTICS(1)
Symbol
Parameter
VCC
Supply Voltage
VIH
High-Level Control Input Voltage
VIL
Low-Level Control Input Voltage
TA
Operating Free-Air Temperature
Test Conditions
Min.
Max.
Unit
2.3
3.6
V
VCC = 2.3V to 2.7V
1.7
—
V
VCC = 2.7V to 3.6V
2
—
VCC = 2.3V to 2.7V
—
0.7
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
—
0.8
–40
+85
V
°C
IDT74CBTLV16210
LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: TA = –40°C to +85°C
Symbol
Typ.(1)
Max.
—
—
–1.2
V
—
—
±1
µA
—
—
5
µA
VCC = 0V, VI or VO = 0V or 3.6V
—
—
10
µA
VCC = 3.6V, IO = 0, VI = VCC or GND
—
—
10
µA
Parameter
Test Conditions
Control Inputs, Data I/O
VCC = 3V, II = –18mA
Control Inputs
VCC = 3.6V, VI = VCC or GND
Data I/O
VCC = 3.6V, VO = 0V or 3.6V switch disabled
IOFF
ICC
VIK
II
I OZ
Min.
Unit
∆ICC(2)
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, OE = VCC
—
6.5
—
pF
IO = 64mA
—
5
8
IO = 24mA
—
5
8
VI = 1.7V
IO = 15mA
—
27
40
VI = 0
IO = 64mA
—
5
7
IO = 24mA
—
5
7
IO = 15mA
—
10
15
CIO(OFF)
Max. at VCC = 2.3V
VI = 0
Typ. at VCC = 2.5V
RON(3)
VCC = 3V
VI = 2.4V
Ω
NOTES:
1. Typical values are at 3.3V, +25°C ambient.
2. The increase in supply current is attributable to each input that is at the specified voltage level rather than VCC or GND.
3. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch.
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
6.8
1
6
ns
1
7.3
1
7.4
ns
A to B or B to A
tEN
Output Enable Time
OE to A or B
tDIS
Output Disable time
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 when driven by an ideal voltage source
(zero output impededance).
3
IDT74CBTLV16210
LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
TEST CONDITIONS
Symbol
VCC(1)= 3.3V±0.3V
VCC(2)= 2.5V±0.2V
Unit
VLOAD
2 x Vcc
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
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
tPLH
tPHL
OUTPUT
VIH
VT
0V
VOH
VT
VOL
VIH
VT
0V
OPPOSITE PHASE
INPUT TRANSITION
Propagation Delay
VLOAD
VCC
500Ω
Pulse(1, 2)
Generator
VIN
CONTROL
INPUT
GND
tPZL
VOUT
D.U.T.
RT
DISABLE
ENABLE
Open
OUTPUT
SWITCH
NORMALLY
CLOSED
LOW
tPZH
OUTPUT SWITCH
NORMALLY
OPEN
HIGH
500Ω
CL
Test Circuits for All Outputs
SWITCH POSITION
Switch
VLOAD
tPHZ/tPZH
GND
tPD
Open
tPHZ
VT
0V
Enable and Disable Times
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 ≤ 2ns.
Test
VLOAD/2
VT
VLOAD/2
VOL + VLZ
VOL
VOH
VOH -VHZ
0V
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
tPLZ/tPZL
tPLZ
VIH
VT
0V
4
IDT74CBTLV16210
LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
XXX
XX
CBTLV
IDT
XX
Temp. Range
Device Type Package
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
PV
PA
PF
Shrink Small Outline Package
Thin Shrink Small Outline Package
Thin Very Small Outline Package
16210
Low-Voltage 20-Bit Bus Switch
74
–40°C to +85°C
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
5
for Tech Support:
[email protected]
(408) 654-6459