3.3V CMOS 16-BIT BUS TRANSCEIVER - Renesas
Description
IDT74LVCHR162245A 3.
3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.
3V CMOS 16-BIT
IDT74LVCHR162245A
BUS TRANSCEIVER
WITH 3 STATE OUTPUTS,
5 VOLT TOLERANT I/O, BUS-HOLD
FEATURES:
• 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 • CMOS power levels (0.
4μ W typ.
static) • All inputs, outputs, and I/O are 5V tolerant • Supports hot insertion • Available in TSSOP package
DRIVE FEATURES:
• Balanced Output Drivers: ±12mA • Low switching noise
APPLICATIONS:
• 5V and 3.
3V mixed voltage systems • Data communication and telecommunication systems
DESCRIPTION:
This 16-bit bus transceiver is built using advanced dual metal CMOS technology.
This high-speed, low power device is ideal for asynchronous communication between two buses (A and B).
The Direction and Output Enable controls are designed to operate this device as either two independent 8-bit transceivers or one 16-bit transceiver.
The direction control pin (DIR) controls the direction of data flow.
The output enable pin (OE) overrides the direction control and disables both ports.
All inputs are designed with hysteresis for improved noise margin.
All pins can be driven from either 3.
3V or 5V devices.
This feature allows the use of this device as a translator in a mixed 3.
3V/5V supply system.
The LVCHR162245A has series resistors in the device output structure which will significantly reduce line noise when used with light loads.
The driver has been designed to drive ±12mA at the designated threshold levels.
The LVCHR162245A 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.
FUNCTIONAL BLOCK DIAGRAM
1DIR 1
1A1 47
46
1A2 1A3 44 1A4 43
41
1A5
40
1A6
38
1A7
1A8 37
48
1OE 2 1B1
3
1B2
5
1B3
6
1B4
8
1B5
9
1B6
1...
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