ATMEL Corporation AT16244F-25YC, AT16244F-25XC, AT16244F-20YC, AT16244F-20XC Datasheet

Loading...
ATMEL Corporation AT16244F-25YC, AT16244F-25XC, AT16244F-20YC, AT16244F-20XC Datasheet

AT16244

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 1.1 ns/100 pF (G grade)

Very low ground bounce < 0.6V @ VCC=5.00 V, 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 Fast Logic 16-Bit Buffer/Line driver provides bus interface and signal buffering at the fastest speeds available in the industry. The Tri-state outputs can be set for either 4-bit, 8-bit, or 16-bit independent operation. The AT16244 also has bus-hold circuitry which retains the last state of the input whenever a high impedance level is detected, and eliminates the need for pull-up or pull-down resistors. Minimal ground bounce and high input noise rejection make this device excellent for use in all high speed interface applications.

Functional Block Diagram (1)

Note: 1. The function shown is repeated 3 additional times on each device.

Pin Configurations

 

 

 

 

 

 

 

 

SSOP/TSSOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Names

Descriptions

1OE

 

1Y1

 

1

2

 

48

47

 

1A1

2OE

1Y2

 

3

46

 

1A2

GND

 

4

 

45

 

GND

 

 

 

 

 

 

 

 

 

 

1Y3

 

5

 

44

 

1A3

 

 

 

Output Enable Input

1Y4

 

6

 

43

 

1A4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC

 

7

42

 

VCC

xOE

 

2Y1

 

8

 

41

 

2A1

 

 

 

 

 

(Active Low)

2Y2

 

9

40

 

2A2

 

 

 

GND

 

10

 

39

 

GND

 

 

 

 

 

 

 

 

 

 

2Y3

 

11

 

38

 

2A3

 

 

 

 

 

 

xAχ

Data Inputs

2Y4

 

12

 

37

 

2A4

 

 

 

 

 

3Y1

 

13

36

 

3A1

3Y2

 

14

 

35

 

3A2

 

 

 

GND

 

 

 

 

 

 

 

15

34

 

GND

xYχ

Tri-State Outputs

3Y3

 

16

 

33

 

3A3

 

 

 

 

 

 

3Y4

 

17

32

 

3A4

 

 

VCC

 

18

 

31

 

VCC

 

 

 

 

 

 

 

4Y1

 

19

 

30

 

4A1

 

 

 

 

4Y2

 

20

 

29

 

4A2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

21

 

28

 

GND

 

 

 

 

 

 

 

 

 

 

4Y3

 

22

 

27

 

4A3

 

 

 

 

 

 

 

 

 

 

 

4Y4

 

23

 

26

 

4A4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4OE

 

 

24

 

 

25

 

3OE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top View

AT16244 Fast Logic

16-Bit Buffer/Line Driver

AT16244F

AT16244G

0755B

5-3

Function Table(1)

 

 

Inputs

Outputs

 

 

 

xAχ

xYχ

xOE

 

 

L

 

L

L

 

L

 

H

H

 

H

 

X

Z

 

 

 

 

 

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...................

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)

Symbol

 

Parameter

Test Conditions

 

Min

Typ

Max

Units

 

 

 

 

 

 

 

 

 

 

 

 

ICC

 

Quiescent Power Supply

VCC = Max, VIN = 3.4V

 

 

0.8

1.2

mA

 

 

Current

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIH

 

Input High Voltage

 

 

2.0

 

 

V

 

 

 

 

 

 

 

 

 

VIL

 

Input Low Voltage

 

 

 

 

0.8

V

 

 

 

 

 

 

 

 

 

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

mA

 

 

 

 

 

 

 

 

 

VOH(1)

 

Output High Voltage

VCC = 4.75V

 

2.7

 

 

V

 

 

F Grade only

IOH = -10 mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOH(2)

 

Output High Voltage

VCC = 4.75V

 

2.7

 

 

V

 

 

G Grade only

IOH = -12 mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOL

 

Output Low Voltage (F Grade)

IOL = 10 mA

 

 

 

0.55

V

 

 

 

 

 

 

 

 

 

VOL

 

Output Low Voltage (G Grade)

IOL = 12 mA

 

 

 

0.55

V

 

 

 

 

 

 

 

 

 

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

 

 

 

 

5-4

AT16244

 

 

 

+ 4 hidden pages