|
Details, datasheet, quote on part number:74ALVCH162245
| |
Datasheet text preview:
IDT74ALVCH162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT BUS TRANSCIEVER WITH 3-STATE OUTPUTS AND BUS-HOLD
.EATURES:
· 0.5 MICRON CMOS Technology · Typical tSK(o) (Output Skew) 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) · VCC = 3.3V ± 0.3V, Normal Range · VCC = 2.7V to 3.6V, Extended Range · VCC = 2.5V ± 0.2V · CMOS power levels (0.4µ W typ. static) µ · Rail-to-Rail output swing for increased noise margin · Available in SSOP, TSSOP, and TVSOP packages
IDT74ALVCH162245
DESCRIPTION:
This 16-bit bus transceiver is built using advanced dual metal CMOS technology. The ALVCH162245 is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements. This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The ALVCH162245 has series resistors in the device out-put structure of the "A" port which will significantly reduce line noise when used with light loads. This driver has been designed to drive ±12mA at the designated threshold levels. The "B" port has a ±24mA driver. The ALVCH162245 has "bus-hold" which retains the inputs' last state whenever the input bus goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistors.
DRIVE .EATURES:
· Balanced Output Drivers: ±12mA (A port) · High Output Drivers: ±24mA (B port)
APPLICATIONS:
· 3.3V high speed systems · 3.3V and lower voltage computing systems
.UNCTIONAL BLOCK DIAGRAM
1 D IR
1
2 D IR
48
24 25
1O E 1A 1
47 2 46 3 44 5 43 6 41 8 40 9 38 11
2O E
2A 1 1B 1 2A 2 1B 2 2A 3 1B 3 2A 4 1B 4 2A 5 1B 5 2A 6 1B 6 2A 7 1B 7 2A 8
12
36 13 35 14 33 16 32 17 30 19 29 20 27 22
2B 1
1A 2
2B 2
1A 3
2B 3
1A 4
2B 4
1A 5
2B 5
1A 6
2B 6
1A 7
2B 7
1A 8
37
26
1B 8
23
2B 8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 1999 Integrated Device Technology, Inc.
APRIL 1999
DSC-4748/1
IDT74ALVCH162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CON.IGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) TSTG IOUT IIK IOK ICC ISS Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Continuous Clamp Current, VI VCC Continuous Clamp Current, VO < 0 Continuous Current through each VCC or GND Max 0.5 to +4.6 0.5 to VCC+0.5 65 to +150 50 to +50 ± 50 50 ±100 Unit V V °C mA mA mA mA
1 D IR 1B 1 1B 2
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 1A 1 1A 2
GND
1B 3 1B 4
GND
1A 3 1A 4
VCC
1B 5 1B 6
VCC
1A 5 1A 6
GND
1B 7 1B 8 2B 1 2B 2
GND
1A 7 1A 8 2A 1 2A 2
NOTES: 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. 2 . VCC terminals. 3 . All terminals except VCC.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol CI N CO U T CI / O Parameter(1) Input Capacitance Output Capacitance I/O Port Capacitance Conditions VIN = 0V VOUT = 0V VIN = 0V Typ. 5 7 7 Max. 7 9 9 Unit pF pF pF
GND
2B 3 2B 4
GND
2A 3 2A 4
NOTE: 1 . As applicable to the device type.
V CC
2B 5 2B 6
V CC
2A 5 2A 6
PIN DESCRIPTION
Pin Names xOE DIR x A x(1) x B x (1) Description Output Enable Inputs (Active LOW) Direction Control Inputs Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs
GND
2B 7 2B 8 2 D IR
GND
2A 7 2A 8 2OE
NOTE: 1 . These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.
SSOP/ TSSOP/ TVSOP TOP VIEW
.UNCTION TABLE (EACH 8-BIT SECTION)(1)
Inputs xOE L L H
NOTE: 1 . H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care
xDIR L H X
Outputs B data to A bus A data to B bus Isolation
2
IDT74ALVCH162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = 40°C to +85°C
Symbol VIH Parameter Input HIGH Voltage Level VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VIL IIH IIL IOZH IOZL VIK VH ICCL ICCH ICCZ ICC Input LOW Voltage Level Input HIGH Current Input LOW Current High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current VCC = 2.3V, IIN = 18mA VCC = 3.3V VCC = 3.6V VIN = GND or VCC One input at VCC - 0.6V, other inputs at VCC or GND VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 3.6V VCC = 3.6V VCC = 3.6V VI = VCC VI = GND VO = VCC VO = GND Test Conditions Min. 1.7 2 -- -- -- -- -- -- -- -- -- Typ.(1) -- -- -- -- -- -- -- -- 0.7 100 0.1 Max. -- -- 0.7 0.8 ±5 ±5 ±10 ±10 1.2 -- 40 V mV µA µA µA µA V Unit V
Quiescent Power Supply Current Variation
--
--
750
µA
NOTE: 1 . Typical values are at VCC = 3.3V, +25°C ambient.
BUS-HOLD CHARACTERISTICS
Symbol IBHH IBHL IBHH IBHL IBHHO IBHLO
NOTES: 1 . Pins with Bus-Hold are identified in the pin description. 2 . Typical values are at VCC = 3.3V, +25°C ambient.
Parameter(1) Bus-Hold Input Sustain Current Bus-Hold Input Sustain Current Bus-Hold Input Overdrive Current VCC = 3V VCC = 2.3V VCC = 3.6V
Test Conditions VI = 2V VI = 0.8V VI = 1.7V VI = 0.7V VI = 0 to 3.6V
Min. 75 75 45 45 --
Typ.(2) -- -- -- -- --
Max. -- -- -- -- ±500
Unit µA µA µA
3
IDT74ALVCH162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS (A PORT)
Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.7V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V Test Conditions(1) VCC = 2.3V to 3.6V IOH = 0.1mA IOH = 4mA IOH = 6mA IOH = 4mA IOH = 8mA IOH = 6mA IOH = 12mA IOL = 0.1mA IOL = 4mA IOL = 6mA IOL = 4mA IOL = 8mA IOL = 6mA IOL = 12mA Min. VCC 0.2 1.9 1.7 2.2 2 2.4 2 -- -- -- -- -- -- -- Max. -- -- -- -- -- -- -- 0.2 0.4 0.55 0.4 0.6 0.55 0.8 V Unit V
NOTE: 1 . VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = 40°C to + 85°C.
OUTPUT DRIVE CHARACTERISTICS (B PORT)
Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.3V VCC = 2.7V VCC = 3V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V IOH = 24mA IOL = 0.1mA IOL = 6mA IOL = 12mA IOL = 12mA IOL = 24mA Test Conditions(1) VCC = 2.3V to 3.6V IOH = 0.1mA IOH = 6mA IOH = 12mA Min. VCC 0.2 2 1.7 2.2 2.4 2 -- -- -- -- -- Max. -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55 V Unit V
NOTE: 1 . VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = 40°C to + 85°C.
OPERATING CHARACTERISTICS, TA = 25°C
VCC = 2.5V ± 0.2V Symbol CPD CPD Parameter Power Dissipation Capacitance Outputs enabled Power Dissipation Capacitance Outputs disabled Test Conditions CL = 0pF, f = 10Mhz Typical 23 4 VCC = 3.3V ± 0.3V Typical 30 5 Unit pF
4
IDT74ALVCH162245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS (A PORT)(1)
VCC = 2.5V ± 0.2V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Parameter Propagation Delay xBx to xAx Output Enable Time xOE to xAx Output Disable Time xOE to xAx Output Skew(2) 1 6.3 1 6.8 Min. 1 Max. 4.9 Min. VCC = 2.7V Max. 4.7 6.7 5.7 VCC = 3.3V ± 0.3V Min. 1 1 1 Max. 4.2 5.6 5.5 500 Unit ns ns ns ps
-- -- -- --
--
--
--
--
NOTES: 1 . See TEST CIRCUITS AND WAVEFORMS. TA = 40°C to + 85°C. 2 . Skew between any two outputs of the same package and switching in the same direction.
SWITCHING CHARACTERISTICS (B PORT)(1)
VCC = 2.5V ± 0.2V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Parameter Propagation Delay xAx to xBx Output Enable Time xOE to xBx Output Disable Time xOE to xBx Output Skew(2) 1 5.2 1 5.7 Min. 1 Max. 3.7 Min. VCC = 2.7V Max. 3.6 5.4 4.6 VCC = 3.3V ± 0.3V Min. 1 1 1 Max. 3 4.4 4.1 500 Unit ns ns ns ps
-- -- -- --
--
--
--
--
NOTES: 1 . See TEST CIRCUITS AND WAVEFORMS. TA = 40°C to + 85°C. 2 . Skew between any two outputs of the same package and switching in the same direction.
5
|
|
