B5S16861
20-BIT TWO PORT BUS SWITCH
PRELIMINARY DATA
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H IGH SPEED: tPD = 0.25ns (MAX.) at VCC = 4.5V TA=85C ON RESISTANCE BETWEEN TWO PORT: 5 (TYP) at VCC = 5.0V TA=25C LOW POWER DISSIPATION: ICC = 1uA(MAX.) at TA=25C C OMPATIBLE WITH TTL OUTPUTS: VIH=2V(MIN), VIL=0.8V(MAX) POWER DOWN PROTECTION ON INPUTS AND OUTPUTS OPERATING VOLTAGE RANGE: VCC(OPR) = 4V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 16861 IMPROVED LATCH-UP IMMUNITY ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015); MM > 200V
TSSOP
Table 1: Order Codes
PACKAGE TSSOP48
T&R
Figure 1: Pin Connection
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DESCRIPTION The B5S16861 is an advanced high-speed CMOS 20-BIT TWO PORT BUS SWITCH fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for 4V to 5.5V VCC operations and ultra-low power and low noise applications, typically notebook and docking station. Any nG output control governs two 10-bit BUS SWITCHES. Output Enable inputs (nG) tied together gives full 20-bit operations. When nG is LOW, the switches are on. When nG is HIGH, the switches are in high impedance state. It has ultra high-speed performance at 5V near zero delay with low ON resistance. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
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October 2004
Rev. 1
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This is preliminary information on a new product now in development are or undergoing evaluation. Details subject to change without notice.
B5S16861
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N 1, 13 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 34, 33, 32, 31, 30, 29, 28, 27, 26, 25 46, 45, 44, 43, 42, 41, 40, 39, 38, 37 47, 35 12, 24 36, 48 SYMBOL NC NAME QND FUNCTION Not Connected
Figure 3: Schematic Diagram
1A0 to 1A9 Data Inputs 2A0 to 2A9 Data Inputs
2B0 to 2B9 Data Outputs
1B0 to 1B9 Data Outputs 1G, 2G GND VCC Bus Enable Input (Active Low) Ground (0V)
Positive Supply Voltage
Table 3: Truth Table
INPUT nG
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n: 0 to 9 X: "H" or "L" Z: High Impedance
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1An, 2An
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O U TP U T 1Bn, 2Bn Bus ON Z
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B5S16861
Table 4: Absolute Maximum Ratings
Symbol VCC VI VO VO IIK IOK IO Tstg TL Supply Voltage DC Switch and Control Pin Voltage DC Output Voltage (VCC = 0V) (note 1) DC Output Voltage (VI/O=Gnd) DC Input Diode Current (VI/O < 0V) DC Output Diode Current (note 2) DC Output Current (note 3) Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 - 50 - 50 128 100 -65 to +150 300 Unit V V V V mA mA mA mA C C
ICC or IGND DC VCC or Ground Current per Supply Pin
Absolute Maximum Rating are those value beyond which damage to the device may occur. Functional operation under these condition is not implied 1) IO absolute maximum rating must be observed 2) VO < GND 3) Not more than one output should be tested at one time. Duration of the test should not exceed one second.
Table 5: Recommended Operating Conditions
Symbol VCC VI VO VO Top dt/dv dt/dv Supply Voltage Input Voltage Output Voltage (VCC = 0V) Output Voltage Operating Temperature Switch Input Rise and Fall Time Control Input Rise and Fall Time (note 1) Parameter
1) VIN from 0.8V to 2V at VCC = 3.0V
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Unit V V V V C ns/V ns/V
4 to 5.5 0 to 5.5
0 to 5.5 0 to 5.5 -55 to 125 0 to DC 0 to 10
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B5S16861
Table 6: DC Specification
Test Condition Symbol Parameter VCC (V) 4 to 5.5 4 to 5.5 4.5 to 5.5 4.5 4.5 4.5 4.0 II IOZ VIK ICC ICCD Input Leakage Current 0 to 5.5 ION=64 mA VI=0V ION=48 mA VI=0V ION=15 mA VI=2.4V ION=15 mA VI=2.4V 5 10 14 0.1 150 7 7 15 22 TA = 25 C Value -40 to 85 C -55 to 125 C Unit
Min. Typ. Max. Min. Max. Min. Max. 2 0.8 2 0.8 2 0.8 V V mV
VIH VIL VH RO N
High Level Input Voltage Low Level Input Voltage Input Hysteresis at Control pin Switch ON Resistance
VI = 5.5V or GND High Impedance Leakage VI/O = 5.5V 4.5 to 5.5 Current to GND Clamp Diode Voltage II = -18mA 4.0 to 5.5 Quiescent Supply Current Supply Current per Control Input per MHz (1) 5.5 5.5 VI = VCC or GND VI/O = Open nG=GND; Control Input Toggling 50% Duty Cycle VIC=VCC-2.1 V
1.0
ICC
ICC incr. per Input
1) This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The 1An and 2An inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
Table 7: AC Electrical Characteristics
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Symbol
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5.5
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2.0 2.0 -1.2 10.0
A
A V A
1.0
0.25
mA / MH z
2.5
mA
Test Condition V CC (V ) CL (p F) 50 4.5 to 5.5 50 50 RL ( ) 500 500 500
Value ts = tr -40 to 85 C -55 to 125C (ns) Min. Max. Min. Max. 2.5 2.5 2.5 1.5 1.5 0.25 5.5 5.5 Unit
Parameter
tPLH tPHL tPZL tPZH tPLZ tPHZ
Propagation Delay Time (1) xAn to xBn, xBn to xAn(2) Output Enable Time Output Disable Time
ns ns ns
1) Parameter guaranteed by design 2) X=1,2; n=0..9.
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B5S16861
Table 8: Capacitance Characteristics
Test Condition Symbol Parameter V CC (V ) Value TA = 25 C Min. Typ. 4 5.0 nG=VCC 5.5 Max. pF pF Unit
CIN CI/O
Input Capacitance at Control Pin Input Capacitance at I/O Pin
Figure 4: Test Circuit
TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ
CL = 50pF or equivalent (includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
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SWITCH Open 7V Open
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B5S16861
Figure 5: Waveform - Propagation Delay (f=1MHz; 50% duty cycle)
Figure 6: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle)
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B5S16861
TSSOP48 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 6.0 0.5 BSC 8 0.17 0.09 12.4 8.1 BSC 6.2 0.236 0.05 0.9 0.27 0.20 12.6 0.0067 0.0035 0.488 0.318 BSC TYP M AX. 1.2 0.15 0.002 0.035 0.011 0.0079 MIN. TYP. M AX . 0.047 0.006 inch
A
A2 A1 b
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0.0197 BSC
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0.496 0.244 8 0.030
K
L E
E1
PIN 1 IDENTIFICATION
1
7065588D
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B5S16861
Tape & Reel TSSOP48 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 8.7 13.1 1.5 3.9 11.9 12.8 20.2 60 30.4 8.9 13.3 1.7 4.1 12.1 0.343 0.516 0.059 0.153 0.468 TYP MAX. 330 13.2 0.504 0.795 2.362 1.197 0.350 MIN. TYP. MAX. 12.99 2 0.519 inch
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0.524 0.067 0.161 0.476
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B5S16861
Table 9: Revision History
Date 01-Oct-2004 Revision 1 First Release. Description of Changes
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B5S16861
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2004 STMicroelectronics - All Rights Reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
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