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74LVCHR162245APAG8

P1-P3P4-P6
INDUSTRIAL TEMPERATURE RANGE
IDT74LVCHR162245A
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
1
OCTOBER 2015INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 2015 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. DSC-4598/6
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 (0.4
μμ
μμ
μ W typ. static)
• All inputs, outputs, and I/O are 5V tolerant
• Supports hot insertion
• Available in TSSOP package
FUNCTIONAL BLOCK DIAGRAM
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
DRIVE FEATURES:
• Balanced Output Drivers: ±12mA
• Low switching noise
IDT74LVCHR162245A
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 indepen-
dent 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.
3.3V CMOS 16-BIT
BUS TRANSCEIVER
WITH 3 STATE OUTPUTS,
5 VOLT TOLERANT I/O, BUS-HOLD
1DIR
1A1
1
A2
1
A3
1
A4
1
A5
1
A6
1
A7
1
A8
1
B8
1
B7
1
B6
1
B5
1
B4
1
B3
1
B2
1
B1
1
OE
2DIR
2A1
2
A2
2
A3
2
A4
2
A5
2
A6
2
A7
2
A8
2
B8
2
B7
2
B6
2
B5
2B4
2
B3
2
B2
2
B1
2
OE
1
47
46
44
43
41
40
38
37
48
2
3
5
6
8
9
11
12
24
36
35
33
32
30
29
27
26
25
13
14
16
17
19
20
22
23
INDUSTRIAL TEMPERATURE RANGE
2
IDT74LVCHR162245A
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
TSSOP
TOP VIEW
PIN CONFIGURATION
Symbol Description Max Unit
VTERM Terminal Voltage with Respect to GND –0.5 to +6.5 V
TSTG Storage Temperature –65 to +150 °C
IOUT DC Output Current –50 to +50 mA
I
IK Continuous Clamp Current, –50 mA
IOK VI < 0 or VO < 0
I
CC Continuous Current through each ±100 mA
ISS VCC or GND
ABSOLUTE MAXIMUM RATINGS
(1)
NOTE:
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.
NOTE:
1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.
NOTE:
1. As applicable to the device type.
Symbol Parameter
(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 4.5 6 pF
COUT Output Capacitance VOUT = 0V 6.5 8 pF
C
I/O I/O Port Capacitance VIN = 0V 6.5 8 pF
CAPACITANCE (TA = +25°C, F = 1.0MHz)
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
Inputs
xOE xDIR Outputs
L L B Data to A Bus
L H A Data to B Bus
H X High Z State
FUNCTION TABLE (EACH 8-BIT SECTION)
(1)
Pin Names Description
xOE Output Enable Input (Active LOW)
xDIR Direction Control Output
xA x Side A Inputs or 3-State Outputs
(1)
xB x Side B Inputs or 3-State Outputs
(1)
PIN DESCRIPTION
1DIR
1B1
GND
VCC
GND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
40
41
42
43
44
45
46
47
481
1B2
1
B3
1
B4
1
B5
1
B6
1
B7
1
B8
2
B1
2
B2
GND
2B3
2
B4
2
B6
2
B5
VCC
GND
2B8
2
B7
2
DIR
1OE
1A1
GND
V
CC
GND
1A2
1
A3
1
A4
1
A5
1
A6
1
A7
1
A8
2
A1
2
A2
GND
2A3
2
A4
2
A6
2
A5
VCC
GND
2A8
2
A7
2
OE
INDUSTRIAL TEMPERATURE RANGE
IDT74LVCHR162245A
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
3
Symbol Parameter Test Conditions Min. Typ.
(1)
Max. Unit
VIH Input HIGH Voltage Level VCC = 2.3V to 2.7V 1.7 — — V
VCC = 2.7V to 3.6V 2 — —
V
IL Input LOW Voltage Level VCC = 2.3V to 2.7V — — 0.7 V
VCC = 2.7V to 3.6V — — 0.8
IIH Input Leakage Current VCC = 3.6V VI = 0 to 5.5V — — ±5 μA
IIL
IOZH High Impedance Output Current VCC = 3.6V VO = 0 to 5.5V — — ±10 μA
IOZL (3-State Output pins)
IOFF Input/Output Power Off Leakage VCC = 0V, VIN or VO ≤ 5.5V — — ±50 μA
VIK Clamp Diode Voltage VCC = 2.3V, IIN = –18mA — –0.7 –1.2 V
VH Input Hysteresis VCC = 3.3V — 100 — mV
I
CCL Quiescent Power Supply Current VCC = 3.6V VIN = GND or VCC —— 10μA
ICCH
ICCZ 3.6 ≤ VIN ≤ 5.5V
(2)
—— 10
ΔICC Quiescent Power Supply Current One input at VCC - 0.6V, other inputs at VCC or GND — — 500 μA
Variation
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: TA = –40°C to +85°C
NOTES:
1. Typical values are at VCC = 3.3V, +25°C ambient.
2. This applies in the disabled state only.
BUS-HOLD CHARACTERISTICS
Symbol Parameter
(1)
Test Conditions Min. Typ.
(2)
Max. Unit
IBHH Bus-Hold Input Sustain Current VCC = 3V VI = 2V – 75 — — μA
IBHL VI = 0.8V 75 — —
IBHH Bus-Hold Input Sustain Current VCC = 2.3V VI = 1.7V — — — μA
IBHL VI = 0.7V — — —
IBHHO Bus-Hold Input Overdrive Current VCC = 3.6V VI = 0 to 3.6V — — ±500 μA
IBHLO
NOTES:
1. Pins with Bus-Hold are identified in the pin description.
2. Typical values are at VCC = 3.3V, +25°C ambient.
P1-P3P4-P6

74LVCHR162245APAG8

Mfr. #:
Buy 74LVCHR162245APAG8
Manufacturer:
IDT
Description:
Bus Transceivers 16-bit Bus Transceiv er w/3-State Outputs
Lifecycle:
New from this manufacturer.
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