Features: • 0.5 MICRON CMOS Technology• Typical tSK(o) (Output Skew) < 250ps• ESD > 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...
IDT74ALVCHR162269A: Features: • 0.5 MICRON CMOS Technology• Typical tSK(o) (Output Skew) < 250ps• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0)•...
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Description |
Symbol |
Max |
unit |
Terminal Voltage with Respect to GND |
VTERM(2) |
0.5 to +4.6
|
V |
Terminal Voltage with Respect to GND |
VTERM(3)
|
0.5 to VCC+0.5 |
V |
Storage Temperature |
TSTG |
65 to +150
|
° C |
DC Output Current |
IOUT
|
50 to +50 |
mA |
Continuous Clamp Current, VI < 0 or VI > VCC |
IIK |
±50
|
mA |
Continuous Clamp Current, VO < 0 |
IOK |
50 |
mA |
Continuous Current through each VCC or GND |
ICC ISS |
±100 |
mA |
This 12-bit to 24-bit registered bus exchanger is used in applications in which two separate ports must be multiplexed onto, or demultiplexed from, a single port.
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.
Description
It is particularly suitable as an interface between synchronous DRAMs and high-speed microprocessors. Data is stored in the internal B-port registers on the low-to-high transition of the clock (CLK) input when the appropriate clock-enable (CLKENA) inputs are low. Proper control of these inputs allows two sequential 12-bit words to be presented as a 24-bit word on the B-port.
For data transfer in the B-to-A direction, a single storage register is provided. The select SEL line selects 1B or 2B data for the A outputs. The register on the A output permits the fastest possible data transfer, thus extending the period during which the data is valid on the bus.
The control terminals of the IDT74ALVCHR162269A are registered so that all transactions are synchronous with CLK. Data flow is controlled by the active-low output enables (OEA, OEB1 and OEB2).
The IDT74ALVCHR162269A has series resistors in the device output structure 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 IDT74ALVCHR162269A has "bus-hold" which retains the inputs' last state whenever the input goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistors.