3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS BUS-HOLD MICRON

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3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS BUS-HOLD MICRON

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IDT74ALVCH245 3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS
3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS BUS-HOLD
MICRON CMOS Technology Typical tSK(o) (Output Skew) 250ps 2000V MIL-STD-883, Method 3015; 200V using machine model 200pF, 1.27mm pitch SOIC, 0.65mm pitch SSOP, 0.635mm pitch QSOP, 0.65mm TSSOP packages Extended commercial range -40°C +85°C 3.3V ±0.3V, Normal Range 2.7V 3.6V, Extended Range 2.5V ±0.2V CMOS power levels (0.4µ typ. static) Rail-to-Rail output swing increased noise margin
IDT74ALVCH245 ADVANCE INFORMATION
DESCRIPTION:
This octal transceiver built using advanced dual metal CMOS technology. three-state controls designed operate this device single-byte mode. inputs designed with hysteresis improved noise margin. ALVCH245 designed asynchronous communication between data buses. device transmits data from from bus, depending logic level direction-control (DIR) input. ALVCH245 been designed with ±24mA output driver. This driver capable driving moderate heavy load while maintaining speed performance. ALVCH245 "bus-hold" which retains inputs' last state whenever input goes high impedance. This prevents floating inputs eliminates need pull-up/down resistors.
Drive Features ALVCH245: High Output Drivers: ±24mA Suitable heavy loads
APPLICATIONS:
3.3V High Speed Systems 3.3V lower voltage computing systems
Functional Block Diagram
SEVEN OTHER CHANNELS
1999 Integrated Device Technology, Inc.
MARCH 1999
DSC-4471/-
IDT74ALVCH245 3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS
CONFIGURATION
20-2 20-7 20-8 20-9
ABSOLUTE MAXIMUM RATING(1)
Symbol VTERM(2) VTERM(3) TSTG IOUT Description Terminal Voltage with Respect Terminal Voltage with Respect Storage Temperature Output Current Continuous Clamp Current, Continuous Clamp Current, Continuous Current through each Max. -0.5 ±100 Unit
ALVC Link
SSOP/ TVSOP/ TSSOP/ QSOP VIEW
NOTES: 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. terminals. terminals except VCC.
CAPACITANCE +25°C, 1.0MHz)
Symbol COUT CI/O Parameter(1) Input Capacitance Output Capacitance Port Capacitance Conditions VOUT Typ. Max. Unit
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NOTE: applicable device type.
DESCRIPTION
Names
Description 3-State Output Enable Input (Active LOW) Direction-control Input Side Inputs 3-State Outputs(1) Side Inputs 3-State Outputs(1)
NOTE: These pins have "Bus-hold". other pins standard inputs, outputs, I/Os.
FUNCTION TABLE
Inputs
NOTE: HIGH Voltage Level Voltage Level Don't Care
1998 Integrated Device Technology, Inc.
Operation
data data Isolation
DSC-123456
IDT74ALVCH245 3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS
ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: -40°C +85°C
Symbol IOZH IOZL ICCL ICCH ICCZ Parameter Input HIGH Voltage Level Input Voltage Level Input HIGH Current Input Current High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current 2.3V, -18mA 3.3V 3.6V input 0.6V, other inputs Test Conditions 2.3V 2.7V 2.7V 3.6V 2.3V 2.7V 3.6V 3.6V 3.6V 3.6V Min. Typ.(1) Max. Unit
Quiescent Power Supply Current Variation
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NOTE: Typical values 3.3V, +25°C ambient.
BUS-HOLD CHARACTERISTICS
Symbol IBHH IBHL IBHH IBHL IBHHO IBHLO
NOTES: Pins with Bus-hold identified description. Typical values 3.3V, +25°C ambient.
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Parameter(1) Bus-Hold Input Sustain Current Bus-Hold Input Sustain Current Bus-Hold Input Overdrive Current
3.0V 2.3V 3.6V
Test Conditions 2.0V 0.8V 1.7V 0.7V 3.6V
Min.
Typ.(2)
Max.
Unit
IDT74ALVCH245 3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS
OUTPUT DRIVE CHARACTERISTICS
Symbol Parameter Output HIGH Voltage Test Conditions(1) 2.3V 3.6V 0.1mA 12mA Min. 24mA 0.1mA 12mA 2.7V 3.0V 12mA 24mA Max. 0.55
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Unit
2.3V 2.3V 2.7V 3.0V 3.0V Output Voltage 2.3V 3.6V 2.3V
NOTE: must within min. max. range shown ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table appropriate range. 40°C 85°C.
OPERATING CHARACTERISTICS, 25oC
2.5V 0.2V Symbol Parameter Power Dissipation Capacitance Outputs enabled Power Dissipation Capacitance Outputs disabled Test Conditions 0pF, 10Mhz Typical 3.3V 0.3V Typical Unit
SWITCHING CHARACTERISTICS
2.5V 0.2V Symbol tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ tSK(o) Parameter Propagation Delay Output Enable Time Output Enable Time Output Disable Time Output Disable Time Output Skew(2) Min. Max. 2.7V 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.
IDT74ALVCH245 3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS
TEST CIRCUITS WAVEFORMS TEST CONDITIONS PROPAGATION DELAY
Symbol VLOAD VCC(1)= 3.3V ±0.3V VCC(1) 2.7V VCC(2)= 2.5V ±0.2V Unit
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SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
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TEST CIRCUITS OUTPUTS
Pulse Generator
LOAD Open
ENABLE DISABLE TIMES
ENABLE CONTROL INPUT tPZL OUTPUT ITCH NORMALLY tPZH OUTPUT ITCH NORMALLY HIGH LOAD/2 tPHZ tPLZ DISABLE LOAD/2
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D.U.T.
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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.
SET-UP, HOLD, RELEASE TIMES
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL tREM
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NOTE: Diagram shown input Control Enable-LOW input Control Disable-HIGH.
SWITCH POSITION
Test Open Drain Disable Enable Disable High Enable High Other tests Switch VLOAD
Open
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OUTPUT SKEW INPUT tPLH1
tPHL1
PULSE WIDTH
-HIGH-LOW PULSE HIGH-LOW -HIGH PULSE
Link
OUTPUT
OUTPUT tPLH2 tPHL2
tPLH2 tPLH1 PHL2 tPHL1
NOTES: tSK(o) OUTPUT1 OUTPUT2 outputs. tSK(b) OUTPUT1 OUTPUT2 same bank.
ALVC Link
IDT74ALVCH245 3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS
ORDERING INFORMATION
ALVC Temp. Range Bus-Hold Device Type Package
Small Outline (SO20-2) Shrink Small Outline Package (SO20-7) Quarter-size Small Outline Package (SO20-8) Thin Shrink Small Outline Package (SO20-9) Octal Transceiver with 3-State Outputs, ±24mA
Bus-Hold -40°C +85°C
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3.3V CMOS OCTAL TRANSCEIVER WITH 3-STATE OUTPUTS BUS-HOLD MICRON

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