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. V
CC
terminals.
3. All terminals except V
CC
.
CAPACITANCE
(T
A
= +25°C, F = 1.0MHz)
Symbol
C
IN
C
OUT
C
I/O
Parameter
(1)
Input Capacitance
Output Capacitance
I/O Port Capacitance
Conditions
V
IN
= 0V
V
OUT
= 0V
V
IN
= 0V
Typ.
5
7
7
Max.
7
9
9
Unit
pF
pF
pF
GND
2
A
4
2
A
5
2
A
6
GND
2
B
4
2
B
5
2
B
6
V
CC
2
A
7
2
A
8
V
CC
2
B
7
2
B
8
NOTE:
1. As applicable to the device type.
GND
2
SAB
2
CLKAB
2
OEAB
GND
2
SBA
2
CLKBA
2
OEBA
PIN DESCRIPTION
Pin Names
xAx
Description
Data Register A Inputs
(1)
Data Register B Outputs
xBx
xCLKAB, xCLKBA
xSAB, xSBA
xOEAB, xOEBA
Data Register B Inputs
(1)
Data Register A Outputs
Clock Pulse Inputs
Output Data Source Select Inputs
Output Enable Inputs
TSSOP
TOP VIEW
NOTE:
1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.
2
IDT74ALVCH16652
3.3V CMOS 16-BIT BUS TRANSCEIVER AND REGISTER
INDUSTRIAL TEMPERATURE RANGE
FUNCTION TABLE
(1)
Inputs
xOEAB
L
L
X
H
L
L
L
L
H
H
H
xOEBA
H
H
H
H
X
L
L
L
H
H
L
xCLKAB
H or L
↑
↑
↑
H or L
↑
X
X
X
H or L
H or L
xCLKBA
H or L
↑
H or L
↑
↑
↑
X
H or L
X
X
H or L
xSAB
X
X
X
X
(3)
X
X
X
X
L
H
H
xSBA
X
X
X
X
X
X
(3)
L
H
X
X
H
xAx
Input
Input
Input
Input
Unspecified
(3)
Output
Output
Output
Input
Input
Input
Data I/O
(2)
xBx
Input
Input
Unspecified
(3)
Output
Input
Input
Input
Input
Output
Output
Output
Isolation
Store A and B Data
Store A, hold B
Store A in both registers
Hold A, store B
Store B in both registers
Real time B data to A bus
Stored B data to A bus
Real time A data to B bus
Stored A data to B bus
Stored A data to B Bus and
Stored B data to A bus
NOTES:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
↑
= LOW-to-HIGH Transition
2. The data output functions may be enabled or disabled by various signals at the xOEAB or xOEBA inputs. Data input functions are always enabled, i.e. data at the bus pins will
be stored on every LOW-to-HIGH transition on the clock inputs.
3. Select control = L: clocks can occur simultaneously.
Select control = H: clocks must be staggered to load both registers.
Operation or Function
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: T
A
= –40°C to +85°C
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
IK
V
H
I
CCL
I
CCH
I
CCZ
∆I
CC
Parameter
Input HIGH Voltage Level
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
V
CC
= 2.3V, I
IN
= –18mA
V
CC
= 3.3V
V
CC
= 3.6V
V
IN
= GND or V
CC
One input at V
CC
- 0.6V, other inputs at V
CC
or GND
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
CC
= 3.6V
V
CC
= 3.6V
V
CC
= 3.6V
V
I
= V
CC
V
I
= GND
V
O
= V
CC
V
O
= 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 V
CC
= 3.3V, +25°C ambient.
3
IDT74ALVCH16652
3.3V CMOS 16-BIT BUS TRANSCEIVER AND REGISTER
INDUSTRIAL TEMPERATURE RANGE
BUS MANAGEMENT FUNCTIONS
BUS
A
BUS
B
BUS
A
BUS
B
xOEAB xOEBA xCLKAB
L
L
X
xCLKBA
X
xSAB
X
xSBA
L
xOEAB
H
xOEBA
H
xCLKAB
X
xCLKBA
X
xSAB
L
xSBA
X
Real-Time Transfer Bus B to Bus A
Real-Time Transfer Bus A to Bus B
BUS
A
BUS
B
BUS
A
BUS
B
xOEAB xOEBA xCLKAB xCLKBA xSAB
X
X
X
H
↑
X
L
X
↑
X
X
L
H
↑
↑
xSBA
X
X
X
xOEAB xOEBA
L
H
xCLKAB
H or L
xCLKBA
H or L
xSAB
H
xSBA
X
Storage from A and/or B
Transfer Stored Data to A and/or B
4
IDT74ALVCH16652
3.3V CMOS 16-BIT BUS TRANSCEIVER AND REGISTER
INDUSTRIAL TEMPERATURE RANGE
BUS-HOLD CHARACTERISTICS
Symbol
I
BHH
I
BHL
I
BHH
I
BHL
I
BHHO
I
BHLO
NOTES:
1. Pins with Bus-Hold are identified in the pin description.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
Parameter
(1)
Bus-Hold Input Sustain Current
Bus-Hold Input Sustain Current
Bus-Hold Input Overdrive Current
V
CC
= 3V
V
CC
= 2.3V
V
CC
= 3.6V
Test Conditions
V
I
= 2V
V
I
= 0.8V
V
I
= 1.7V
V
I
= 0.7V
V
I
= 0 to 3.6V
Min.
– 75
75
– 45
45
—
Typ.
(2)
—
—
—
—
—
Max.
—
—
—
—
±500
Unit
µA
µA
µA
OUTPUT DRIVE CHARACTERISTICS
Symbol
V
OH
Parameter
Output HIGH Voltage
V
CC
= 2.3V
V
CC
= 2.3V
V
CC
= 2.7V
V
CC
= 3V
V
CC
= 3V
V
OL
Output LOW Voltage
V
CC
= 2.3V to 3.6V
V
CC
= 2.3V
V
CC
= 2.7V
V
CC
= 3V
I
OH
= – 24mA
I
OL
= 0.1mA
I
OL
= 6mA
I
OL
= 12mA
I
OL
= 12mA
I
OL
= 24mA
Test Conditions
(1)
V
CC
= 2.3V to 3.6V
I
OH
= – 0.1mA
I
OH
= – 6mA
I
OH
= – 12mA
Min.
V
CC
– 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. V
IH
and V
IL
must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate V
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