AT16373
Features
∙Fastest Propagation Speeds in the Industry TPD (F grade) = 2.5 ns, TPD (G grade) = 2.0 ns
∙Maximum derating for capacitive loads 1.5ns/100 pF (F grade) and 1.1ns/100 pF (G grade)
∙Very low ground bounce < 0.6V @ VCC=5.00V, Ta=25°C
∙Excellent noise rejection
∙Typical output skew ≤0.25ns
∙Bus Hold circuitry to retain last active state during Tri-state™
∙Available in SSOP and TSSOP packages
Description
Atmel’s AT16373 devices provide maximum speed in temporary data storage. They can be operated as either two separate 8 bit latches or as a single 16-bit latch by use of the output enable and the latch enable. The AT16373 has very low ground bounce and excellent input noise rejection, giving the user stable signals in a high speed environment. These devices can drive very large loads while operating in a high speed transparent mode.
Functional Block Diagram (1)
Note: 1. This 8-bit latch function is repeated a second time on each device.
Pin Configurations |
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SSOP/TSSOP |
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Pin Names |
Descriptions |
1OE |
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1O1 |
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1 |
2 |
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48 |
47 |
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1D1 |
1LE |
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1O2 |
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3 |
46 |
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1D2 |
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GND |
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4 |
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45 |
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GND |
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Output Enable Input |
1O3 |
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5 |
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44 |
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1D3 |
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1O4 |
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6 |
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43 |
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1D4 |
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xOE |
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VCC |
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7 |
42 |
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VCC |
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(Active Low) |
1O5 |
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8 |
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41 |
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1D5 |
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1O6 |
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9 |
40 |
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1D6 |
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GND |
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10 |
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39 |
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GND |
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Latch Enable Inputs |
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xLE |
1O7 |
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11 |
38 |
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1D7 |
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1O8 |
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12 |
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37 |
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1D8 |
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(Active High) |
2O1 |
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13 |
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36 |
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2D1 |
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2O2 |
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14 |
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35 |
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2D2 |
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GND |
2O3 |
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15 |
16 |
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34 |
33 |
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2D3 |
GND |
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xDχ |
Data Inputs |
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2O4 |
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17 |
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32 |
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2D4 |
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VCC |
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18 |
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31 |
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VCC |
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2O5 |
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19 |
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30 |
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2D5 |
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xOχ |
Tri-State Outputs |
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2O6 |
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20 |
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29 |
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2D6 |
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GND |
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21 |
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28 |
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GND |
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2O7 |
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22 |
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27 |
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2D7 |
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2O8 |
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23 |
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26 |
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2D8 |
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2OE |
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24 |
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25 |
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2LE |
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Top View
AT16373 Fast Logic™
16-Bit Transparent Latch
AT16373F
AT16373G
0756B
5-15
Function Table(1)
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Inputs |
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Outputs |
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xDχ |
xLE |
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xOχ |
xOE |
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H |
H |
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L |
H |
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L |
H |
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L |
L |
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X |
X |
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H |
Z |
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Note: 1. X = Don’t Care, Z = High Impedance
Absolute Maximum Ratings*
Operating Temperature........................ |
0°C to +70°C |
Storage Temperature...................... |
-65°C to +150°C |
Voltage on any Pin |
-2.0V to +7.0V(1) |
with Respect to Ground .................. |
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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 -0.6V dc which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is VCC +0.75V dc which may overshoot to +7.0V for pulses of less than 20 ns.
Applicable over recommended operating range from Ta = 0°C to +70°C, V CC = +5.0V +/- 5% (unless otherwise noted)
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Units |
Symbol |
Parameter |
Test Conditions |
Min |
Typ |
Max |
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ICC |
Quiescent Power Supply |
VCC = Max, VIN = 3.4V |
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0.8 |
1.2 |
mA |
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Current |
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VIH |
Input High Voltage |
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2.0 |
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V |
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VIL |
Input Low Voltage |
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0.8 |
V |
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IIH |
Input High Current |
VIN = VCC |
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±15 |
μA |
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IIL |
Input Low Current |
VIN = GND |
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±15 |
μA |
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IOZ |
Output Leakage Current |
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±10 |
μA |
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VOH(1) |
Output High Voltage |
VCC = 4.75V |
2.7 |
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V |
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F Grade only |
IOH = -10 mA |
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VOH(2) |
Output High Voltage |
VCC = 4.75V |
2.7 |
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V |
G Grade only |
IOH = -12 mA |
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VOL |
Output Low Voltage (F Grade) |
IOL = 10 mA |
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0.55 |
V |
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VOL |
Output Low Voltage (G Grade) |
IOL = 12 mA |
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0.55 |
V |
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Note: 1. F grade: At VCC (max), the value of VOH(max) = 3.75V and at VCC(min), VOH(max) = 3.25V 2. G grade: At VCC (max), the value of VOH(max) = 3.75V and at VCC(min), VOH(max) = 3.35V
5-16 |
AT16373 |
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