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Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
FEATURES
* * * * * 16-bit universal bus interface 3-State buffers Output capability: +64mA/-32mA TTL input and output switching levels Input and output interface capability to systems at 5V supply * Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs
* Live insertion/extraction permitted * Power-up 3-State * No bus current loading when output is tied to 5V bus * Latch-up protection exceeds 500mA per JEDEC JC40.2 Std 17 * ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model
DESCRIPTION
The LVT16541A is a high-performance BiCMOS product designed for VCC operation at 3.3V. This device can be used as two octal buffers or one 16-bit buffer. The device is ideal for driving bus lines.
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN COUT ICCZ PARAMETER Propagation delay nAx to nYx Input capacitance nOEx Output pin capacitance Total supply current CONDITIONS Tamb = 25C; GND = 0V CL = 50pF; VCC = 3.3V VI = 0V or 3.0V Outputs disabled; VO = 0V or 3.0V Outputs disabled; VCC = 3.6V 4 10 100 TYPICAL UNIT ns pF pF A
ORDERING INFORMATION
PACKAGES 48-Pin Plastic Shrink Small Outline (SSOP) Type III 48-Pin Plastic Thin Shrink Small Outline (TSSOP) Type II TEMPERATURE RANGE -40C to +85C -40C to +85C ORDER CODE 74LVT16541ADL 74LVT16541ADGG DRAWING NUMBER SOT370-1 SOT362-1
LOGIC SYMBOL
1OE0 1OE1 1 48 2OE0 1OE1 2 3 5 6 8 9 11 12 24 25
LOGIC SYMBOL (IEEE/IEC)
1 1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 47 46 44 43 41 40 38 37 1Y0 1Y1 1Y2 1Y3 1Y4 1Y5 1Y6 1Y7 2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 36 35 33 32 30 29 27 26 13 14 16 17 19 20 22 23 2Y0 2Y1 47 2Y2 2Y3 43 2Y4 2Y5 38 2Y6 2Y7 37 11 12 41 40 6 8 9 46 44 2 2 3 5 48 & EN1
24 25 & EN2
36 35 33 32 30 29 27 26
2
13 14 16 17 19 20 22 23
July 1994
1
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
PIN CONFIGURATION
1OE0 1A0 1A1 GND 1A2 1A3 VCC 1A4 1A5 GND 1A6 1A7 2A0 2A1 GND 2A2 2A3 VCC 2A4 2A5 GND 2A6 2A7 2OE0 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 1OE1 1Y0 1Y1 GND 1Y2 1Y3 VCC 1Y4 1Y5 GND 1Y6 1Y7 2Y0 2Y1 GND 2Y2 2Y3 VCC 2Y4 2Y5 GND 2Y6 2Y7 2OE1
PIN DESCRIPTION
PIN NUMBER 47, 46, 44, 43, 41, 40, 38, 37, 36, 35, 33, 32, 30, 29, 27, 26 2, 3, 5, 6, 8, 9, 11, 12,13, 14, 16, 17, 19, 20, 22, 23 1, 48 24, 25 4, 10, 15, 21, 28, 34, 39, 45 7, 18, 31, 42 SYMBOL 1A0-1A7 2A0-2A7 1Y0-1Y7 2Y0-2Y7 1OE0, 1OE1, 2OE0, 2OE1 GND VCC Data inputs Data outputs Output enables Ground (0V) Positive supply voltage NAME AND FUNCTION
FUNCTION TABLE
INPUTS nOE0 L L X H nOE1 L L H X nAx L H X X OUTPUTS nYx L H Z Z
H = High voltage level L = Low voltage level X = Don't care Z = High Impedance "off " state July 1994 2
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
ABSOLUTE MAXIMUM RATINGS1,2
SYMBOL VCC IIK VI IOK VOUT IOUT Tstg PARAMETER DC supply voltage DC input diode current DC input voltage3 VO < 0 Output in Off or High state Output in Low state DC output current Output in High state Storage temperature range -64 -65 to +150 C VI < 0 CONDITIONS RATING -0.5 to +4.6 -50 -0.5 to +7.0 -50 -0.5 to +7.0 128 mA UNIT V mA V mA V
DC output diode current DC output voltage3
NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150C. 3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER MIN VCC VI VIH VIL IOH IOL t/v Tamb DC supply voltage Input voltage High-level input voltage Input voltage High-level output current Low-level output current Low-level output current; current duty cycle 50%; f 1kHz Input transition rise or fall rate; Outputs enabled Operating free-air temperature range -40 2.7 0 2.0 0.8 -32 32 mA 64 10 +85 ns/V C LIMITS MAX 3.6 5.5 V V V V mA UNIT
July 1994
3
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
DC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITIONS Temp = -40C to +85C MIN VIK VOH Input clamp voltage VCC = 2.7V; IIK = -18mA VCC = 2.7 to 3.6V; IOH = -100A High-level output voltage VCC = 2.7V; IOH = -8mA VCC = 3.0V; IOH = -32mA VCC = 2.7V; IOL = 100A VCC = 2.7V; IOL = 24mA VOL Low-level output voltage VCC = 3.0V; IOL = 16mA VCC = 3.0V; IOL = 32mA VCC = 3.0V; IOL = 64mA VCC = 3.6V; VI = VCC or GND II Input leakage current VCC = 0 or 3.6V; VI = 5.5V VCC = 3.6V; VI = VCC VCC = 3.6V; VI = 0 IOFF IHOLD IEX IPU/PD IOZH IOZL ICCH ICCL ICCZ ICC Additional supply current per input pin2 Quiescent supply current Output off current Bus Hold current A inputs Current into an output in the High state when VO > VCC Power up/down 3-State output current3 3-State output High current 3-State output Low current VCC = 0V; VI or VO = 0 to 4.5V VCC = 3V; VI = 0.8V VCC = 3V; VI = 2.0V VO = 5.5V; VCC = 3.0V VCC 1.2V; VO = 0.5V to VCC; VI = GND or VCC; OE/OE = Don't care VCC = 3.6V; VO = 3.0V; VI = VIL or VIH VCC = 3.6V; VO = 0.5V; VI = VIL or VIH VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0 VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0 VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 0 VCC = 3V to 3.6V; One input at VCC-0.6V, Other inputs at VCC or GND 0.13 3.5 0.13 75 -75 125 100 5 -5 0.12 5 0.12 0.2 mA mA Data pins4 Control pins VCC-0.2 2.4 2.0 0.2 0.5 0.4 0.5 0.55 1 10 1 -5 100 A A A A A A A A V V TYP1 MAX -1.2 V UNIT
NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25C. 2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND 3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V 0.3V a transition time of 100sec is permitted. This parameter is valid for Tamb = 25C only. 4. Unused pins at VCC or GND.
AC CHARACTERISTICS
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500; Tamb = -40C to +85C. LIMITS SYMBOL PARAMETER WAVEFORM MIN tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation delay nAx to nYx Output enable time to High and Low level Output disable time from High and Low Level 1 2 2 VCC = 3.3V 0.3V TYP1 MAX VCC = 2.7V MAX ns ns ns UNIT
NOTE: 1. All typical values are at VCC = 3.3V and Tamb = 25C. July 1994 4
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
AC WAVEFORMS
VM = 1.5V, VIN = GND to 2.7V
nOE INPUT 1.5V 2.7V nAx INPUT 1.5V 1.5V 0V tPLH tPHL VOH nYx OUTPUT 1.5V 1.5V VOL nYx OUTPUT 1.5V nYx OUTPUT tPZH 1.5V VOL + 0.3V tPHZ VOL VOH VOH - 0.3V tPZL tPLZ 1.5V 0V 3.0V 2.7V
0V
Waveform 1. Waveforms Showing the Input to Output Propagation Delays
Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times
TEST CIRCUIT AND WAVEFORMS
VCC
6.0V 90%
tW VM 10% tTHL (tF) 10% VM
90%
AMP (V)
Open
VIN PULSE GENERATOR RT D.U.T CL RL VOUT RL
GND
NEGATIVE PULSE
0V tTLH (tR) tTHL (tF) 90% VM 10% tW 0V AMP (V)
tTLH (tR) 90% POSITIVE PULSE 10%
Test Circuit for 3-State Outputs
VM
SWITCH POSITION
TEST tPLZ/tPZL tPLH/tPHL tPHZ/tPZH SWITCH 6V Open GND
VM = 1.5V Input Pulse Definition
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance: See AC CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators.
INPUT PULSE REQUIREMENTS FAMILY Amplitude 74LVT16 2.7V Rep. Rate 10MHz tW tR tF
500ns 2.5ns 2.5ns
July 1994
5

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