AT16646F Datasheet, PDF (2/6 Pages) ATMEL Corporation – AT16646 Fast Logic 16-Bit Tri-State Register

Function Table⁽¹⁾
xOE xDir
HX
HX
L
L
L
L
L
H
L
H
Inputs
xCLKAB
H or L
↑
X
X
X
H or L
xCLKBA
H or L
↑
X
H or L
X
X
xSAB
X
X
X
X
L
H
xSBA
X
X
L
H
X
X
Data I/O⁽²⁾
xAχ
Input
xBχ
Input
Output
Input
Input
Output
Operation or Function
Isolation
Store A and B Data
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
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 xOE or xDir 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.
Absolute Maximum Ratings*
Operating Temperature........................ 0°C to +70°C
Storage Temperature ...................... -65°C to +150°C
Voltage on any Pin
with Respect to Ground................. -2.0 V to +7.0 V⁽¹⁾
Maximum Operating Voltage.............................. 6.0V
5.0 Volt DC Characteristics
*NOTICE: Stresses beyond 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 beyond those
indicated in the operational sections of this specification is
not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
Notes:
1. Minimum voltage is -0.6 V dc which may
undershoot to -2.0 V for pulses of less than 20 ns.
Maximum output pin voltage is V_CC +0.75 V dc
which may overshoot to +7.0 V for pulses of less
than 20 ns.
Applicable over recommended operating range from T_a = 0°C to +70°C, V_CC = +5.0V +/- 5% (unless otherwise noted)
Symbol
Parameter
Test Conditions
Min Typ Max Units
∆I_CC
Quiescent Power Supply
V_CC = Max, V_IN = 3.4 V
Current
0.8 1.2 mA
V_IH
Input High Voltage
2.0
V
V_IL
Input Low Voltage
I_IH
Input High Current (I/O Pins) V_IN = V_CC
I_IL
Input Low Current (I/O Pins) V_IN = GND
I_OZ
Output Leakage Current
0.8
V
±15 µA
±15 µA
±10 µA
V_OH(1)
Output High Voltage
F Grade only
V_CC = 4.75 V
IOH = -10 mA
2.7
V
VOH(2)
Output High Voltage
G Grade only
VCC = 4.75 V
I_OH = -12 mA
2.7
V
V_OL
Output Low Voltage (F Grade) I_OL = 10 mA
0.55 V
V_OL
Output Low Voltage (G Grade) I_OL = 12 mA
0.55 V
Note: 1. F grade: At V_{CC (max)}, the value of V_OH(max) = 3.75 V and at V_CC(min), V_OH(max) = 3.25 V
2. G grade: At V_{CC (max)}, the value of V_OH(max) = 3.75 V and at V_CC(min), V_OH(max) = 3.35 V
5-22
AT16646