3.3V CMOS IDT74LVCH16240A 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS, V
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IDT74LVCH16240A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
3.3V CMOS IDT74LVCH16240A 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS, VOLT TOLERANT I/O, BUS-HOLD
Typical tSK(o) (Output Skew) 250ps 2000V MIL-STD-883, Method 3015; 200V using machine model 200pF, 3.3V 0.3V, Normal Range 2.7V 3.6V, Extended Range CMOS power levels (0.4µ typ. static) inputs, outputs, tolerant Available SSOP, TSSOP, TVSOP packages
FEATURES:
DESCRIPTION:
DRIVE FEATURES: APPLICATIONS:
High Output Drivers: ±24mA Reduced system switching noise
3.3V mixed voltage systems Data communication telecommunication systems
This 16-bit buffer/driver built using advanced dual metal CMOS technology. This high-speed, power device designed specifically improve both performance density 3-state memory address drivers, clock drivers, bus-oriented receivers transmitters. device used four 4-bit buffers, 8-bit buffers, 16-bit buffer. This device provides inverting outputs symmetrical active-low outputenable (OE) inputs. ensure high-impedance state during power power down, should tied through pullup resistor; minimum value resistor determined current-sinking capability driver. pins this 16-bit buffer/line driver driven from either 3.3V devices. This feature allows device translator mixed 3.3V/5V supply system. LVCH16240A "bus-hold" which retains inputs' last state whenever input goes high impedance. This prevents floating inputs eliminates need pull-up/down resistors. LVCH16240A been designed with ±24mA output driver. driver capable driving moderate heavy load while maintaining speed performance.
FUNCTIONAL BLOCK DIAGRAM
logo registered trademark Integrated Device Technology, Inc.
1999 Integrated Device Technology, Inc.
MARCH 1999
DSC-4702/2
IDT74LVCH16240A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
CONFIGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description VTERM Terminal Voltage with Respect Storage Temperature Output Current Continuous Clamp Current, Continuous Current through each -0.5 +6.5 +150 ±100
Unit
TSTG IOUT
NOTE: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS cause permanent damage device. This stress rating only functional operation device these other conditions above those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect reliability.
CAPACITANCE +25°C, 1.0MHz)
Symbol COUT CI/O Parameter(1) Input Capacitance Output Capacitance Port Capacitance Conditions VOUT Typ. Max. Unit
NOTE: applicable device type.
DESCRIPTION
Names Data Inputs
Description 3-State Outputs 3-State Output Enable Inputs (Active LOW)
NOTE: These pins have "Bus-Hold". other pins standard inputs, outputs, I/Os.
FUNCTION TABLE (EACH 4-BIT BUFFER)(1)
Inputs Outputs
NOTES: HIGH Voltage Level Don't Care Voltage Level High-Impedance
SSOP/ TSSOP/ TVSOP VIEW
IDT74LVCH16240A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: -40°C +85°C
Symbol IOZH IOZL IOFF ICCL ICCH ICCZ High Impedance Output Current (3-State Output pins) Input/Output Power Leakage Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current 5.5V 2.3V, -18mA 3.3V 3.6V -0.7 -1.2 3.6V 5.5V Parameter Input HIGH Voltage Level Input Voltage Level Input Leakage Current 2.3V 2.7V 2.7V 3.6V 2.3V 2.7V 2.7V 3.6V 3.6V 5.5V Test Conditions Min. Typ.(1) Max. Unit
Quiescent Power Supply Current Variation
5.5V(2) input 0.6V, other inputs
NOTES: Typical values 3.3V, +25°C ambient. This applies disabled state only.
BUS-HOLD CHARACTERISTICS
Symbol IBHH IBHL IBHH IBHL IBHHO IBHLO
NOTES: Pins with Bus-Hold identified description. Typical values 3.3V, +25°C ambient.
Parameter(1) Bus-Hold Input Sustain Current Bus-Hold Input Sustain Current Bus-Hold Input Overdrive Current 2.3V 3.6V
Test Conditions 0.8V 1.7V 0.7V 3.6V
Min.
Typ.(2)
Max. ±500
Unit
IDT74LVCH16240A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
OUTPUT DRIVE CHARACTERISTICS
Symbol Parameter Output HIGH Voltage 2.3V 2.3V 2.7V Output Voltage 2.3V 3.6V 2.3V 2.7V 24mA 0.1mA 12mA 12mA 24mA Test Conditions(1) 2.3V 3.6V 0.1mA 12mA Min. Max. 0.55 Unit
NOTE: must within min. max. range shown ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table appropriate range. 40°C 85°C.
OPERATING CHARACTERISTICS, 3.3V 0.3V, 25°C
Symbol Parameter Power Dissipation Capacitance Buffer/Driver Outputs enabled Power Dissipation Capacitance Buffer/Driver Outputs disabled Test Conditions 0pF, 10Mhz Typical Unit
SWITCHING CHARACTERISTICS(1)
2.7V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Parameter Propagation Delay Output Enable Time Output Disable Time Output Skew(2) Min. Max. 3.3V 0.3V Min. Max. Unit
NOTES: TEST CIRCUITS WAVEFORMS. 40°C 85°C. Skew between outputs same package switching same direction.
IDT74LVCH16240A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
TEST CIRCUITS WAVEFORMS TEST CONDITIONS
Symbol VLOAD VCC(1)= 3.3V±0.3V VCC(1)= 2.7V
Pulse Generator D.U.T.
Link
VCC(2)= 2.5V±0.2V
Unit
VLOAD Open
SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
Link
Propagation Delay
ENABLE CONTROL INPUT tPZL OUTPUT SWITCH NORMALLY CLOSED tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 tPHZ tPLZ DISABLE VLOAD/2 VOL+VLZ VOH-VHZ
Link
VOUT
Test Circuit Outputs
DEFINITIONS: Load capacitance: includes probe capacitance. Termination resistance: should equal ZOUT Pulse Generator. NOTES: Pulse Generator Pulses: Rate 10MHz; 2.5ns; 2.5ns. Pulse Generator Pulses: Rate 10MHz; 2ns; 2ns.
NOTE: Diagram shown input Control Enable-LOW input Control Disable-HIGH.
Enable Disable Times
SWITCH POSITION
Test Open Drain Disable Enable Disable High Enable High Other Tests Switch VLOAD Open
tPLH2 tPHL2
Link
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL
tREM
Link
INPUT
Set-up, Hold, Release Times
LOW-HIGH-LOW PULSE HIGH-LOW-HIGH PULSE
Link
tPLH1
tPHL1
OUTPUT
OUTPUT
tSK(x) tPLH2 tPLH1 tPHL2 tPHL1
Pulse Width
Output Skew tSK(X)
NOTES: tSK(o) OUTPUT1 OUTPUT2 outputs. tSK(b) OUTPUT1 OUTPUT2 same bank.
IDT74LVCH16240A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
ORDERING INFORMATION
Bus-Hold Temp. Range Family XXXX Device Type Package
Shrink Small Outline Package Thin Shrink Small Outline Package Thin Very Small Outline Package
240A 16-Bit Buffer/Driver with 3-State Outputs Double-Density, ±24mA Bus-hold -40°C +85°C
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