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IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
LOW-VOLTAGE 20-BIT BUS SWITCH
IDT74CBTLV16210 PRELIMINARY
FEATURES:
* * * * * *
5 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
DESCRIPTION:
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
SIMPLIFIED SCHEMATIC, EACH SWITCH
1B1
2 1A1
SW
46
1A10
12
SW
36
1B10
A
B
48 1OE
2A1
13
SW
35
2B1
OE
24 SW 25
2A10
2B10
47 2OE
INDUSTRIAL TEMPERATURE RANGE
1
c 2002 Integrated Device Technology, Inc.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
AUGUST 2002
DSC-5887/3
IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
NC
1A1 1A2 1A3 1A4 1A5 1A6
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Supply Voltage Range Input Voltage Range Continuous Channel Current IIK TSTG Input Clamp Current, VI/O < 0 Storage Temperature Range Max. -0.5 to 4.6 -0.5 to 4.6 128 -50 -65 to +150 Unit V V mA mA C
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1OE 2OE 1B1 1B2 1B3 1B4 1B5 GND 1B6 1B7 1B8 1B9 1B10 2B1 2B2 2B3 GND 2B4 2B5 2B6 2B7 2B8 2B9 2B10
VCC VI
GND
1A7 1A8 1A9 1A10 2A1 2A2
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
Pin Names xOE xAx xBx Description Output Enable (Active LOW) Port A Inputs or Outputs Port B Inputs or Outputs
VCC
2A3
GND
2A4 2A5 2A6 2A7 2A8 2A9 2A10
FUNCTION TABLE(1)
Input OE L H
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level
Operation A-Port = B-Port Disconnect
SSOP/ TSSOP/ TVSOP TOP VIEW
OPERATING CHARACTERISTICS(1)
Symbol VCC VIH VIL TA Parameter Supply Voltage High-Level Control Input Voltage Low-Level Control Input Voltage Operating Free-Air Temperature VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V 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.
Test Conditions
Min. 2.3 1.7 2 -- -- -40
Max. 3.6 -- -- 0.7 0.8 +85
Unit V V V C
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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 = -40C to +85C
Symbol VIK II IOZ IOFF ICC ICC(2) CI CIO(OFF) Max. at VCC = 2.3V Typ. at VCC = 2.5V RON(3) VCC = 3V VI = 2.4V
NOTES: 1. Typical values are at 3.3V, +25C 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.
Parameter Control Inputs, Data I/O Control Inputs Data I/O
Test Conditions VCC = 3V, II = -18mA VCC = 3.6V, VI = VCC or GND VCC = 3.6V, VO = 0V or 3.6V switch disabled VCC = 0V, VI or VO = 0V or 3.6V VCC = 3.6V, IO = 0, VI = VCC or GND
Min. -- -- -- -- -- -- -- -- IO = 64mA IO = 24mA IO = 15mA IO = 64mA IO = 24mA IO = 15mA -- -- -- -- -- --
Typ.(1) -- -- -- -- -- -- 4 6.5 5 5 27 5 5 10
Max. -1.2 1 5 10 10 300 -- -- 8 8 40 7 7 15
Unit V A A A A A pF pF
Control Inputs Control Inputs
VCC = 3.6V, one input at 3V, other inputs at VCC or GND VI = 3V or 0 VO = 3V or 0, OE = VCC VI = 0 VI = 1.7V VI = 0
SWITCHING CHARACTERISTICS
VCC = 2.5V 0.2V Symbol tPD(1) tEN tDIS Propagation Delay A to B or B to A Output Enable Time OE to A or B 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).
VCC = 3.3V 0.3V Min. -- 1 1 Max. 0.25 6 7.4 Unit ns ns ns
Parameter
Min. -- 1 1
Max. 0.15 6.8 7.3
3
IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS
Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V 2 x Vcc 3 1.5 300 300 50 VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30 Unit V V V mV mV pF
SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
VIH VT 0V VOH VT VOL VIH VT 0V
Propagation Delay
VCC 500 Pulse(1, 2) Generator VIN D.U.T. RT 500 CL VOUT
VLOAD Open GND CONTROL INPUT
ENABLE
DISABLE
tPZL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V
tPLZ
VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V
Test Circuits for All Outputs
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 2ns.
NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
SWITCH POSITION
Test tPLZ/tPZL tPHZ/tPZH tPD Switch VLOAD GND Open
4
IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
XXX XX CBTLV IDT XX Temp. Range Device Type Package
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
-40C to +85C
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