AT16646F datasheet(2/6 Pages) ATMEL

2 / 6 page

Inputs

Data I/O

(2)

Operation or Function

xOE

xDir

xCLKAB

xCLKBA

xSAB

xSBA

H or L

↑

H or L

↑

Input

Isolation

Store A and B Data

H or L

Output

Input

Real Time B Data to A Bus

Stored B Data to A Bus

H or L

Input

Output

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.

Function Table

(1)

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

*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 VCC +0.75 V dc

which may overshoot to +7.0 V for pulses of less

than 20 ns.

Absolute Maximum Ratings*

Applicable over recommended operating range from Ta = 0°C to +70°C, VCC = +5.0V +/- 5% (unless otherwise noted)

Symbol

Parameter

Test Conditions

Min

Typ

Max

Units

∆ICC

Quiescent Power Supply

Current

VCC = Max, VIN = 3.4 V

0.8

1.2

VIH

Input High Voltage

2.0

VIL

Input Low Voltage

0.8

IIH

Input High Current (I/O Pins)

VIN = VCC

±15

µA

IIL

Input Low Current (I/O Pins)

VIN = GND

±15

µA

IOZ

Output Leakage Current

±10

µA

VOH(1)

Output High Voltage

F Grade only

VCC = 4.75 V

IOH = -10 mA

2.7

VOH(2)

Output High Voltage

G Grade only

VCC = 4.75 V

IOH = -12 mA

2.7

VOL

Output Low Voltage (F Grade)

IOL = 10 mA

0.55

VOL

Output Low Voltage (G Grade)

IOL = 12 mA

0.55

Note:

1. F grade: At VCC (max), the value of VOH(max) = 3.75 V and at VCC(min), VOH(max) = 3.25 V

2. G grade: At VCC (max), the value of VOH(max) = 3.75 V and at VCC(min), VOH(max) = 3.35 V

5.0 Volt DC Characteristics

5-22

AT16646

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