UM245R USB-Parallel FIFO Development Module Datasheet Version 1.02

© Future Technology Devices International Ltd. 2005

Page 10

5. Device Characteristics and Ratings

5.1 Absolute Maximum Ratings

The absolute maximum ratings for the FT245R devices are as follows. These are in accordance with the Absolute

Maximum Rating System (IEC 60134). Exceeding these may cause permanent damage to the device.

Table 6 - Absolute Maximum Ratings

Parameter

Value

Unit

Storage Temperature

-65°C to 150°C

Degrees C

Floor Life (Out of Bag) At Factory Ambient

( 30°C / 60% Relative Humidity)

168 Hours

(IPC/JEDEC J-STD-033A MSL

Level 3 Compliant)*

Hours

Ambient Temperature (Power Applied)

-40°C to 85°C

Degrees C.

Vcc Supply Voltage

-0.5 to +6.00

V

D.C. Input Voltage - USBDP and USBDM

-0.5 to +3.8

V

D.C. Input Voltage - High Impedance Bidirectionals

-0.5 to +(Vcc +0.5)

V

D.C. Input Voltage - All other Inputs

-0.5 to +(Vcc +0.5)

V

D.C. Output Current - Outputs

24

mA

DC Output Current - Low Impedance Bidirectionals

24

mA

Power Dissipation (Vcc = 5.25V)

500

mW

* If devices are stored out of the packaging beyond this time limit the devices should be baked before use. The

5.2 DC Characteristics

Table 7 - Operating Voltage and Current

Parameter Description

Min

Typ

Max

Units

Conditions

Vcc1

VCC Operating Supply Voltage

3.3

-

5.25

V

Vcc2

VCCIO Operating Supply Voltage

1.8

-

5.25

V

Icc1

Operating Supply Current

-

15

-

mA

Normal Operation

Icc2

Operating Supply Current

50

70

100

USB Suspend*

Table 8 - FIFO Interface and Control Bus Pin Characteristics (VCCIO = 5.0V, Standard Drive Level)

Parameter Description

Min

Typ

Max

Units

Conditions

Voh

Output Voltage High

3.2

4.1

4.9

V

I source = 2mA

Vol

Output Voltage Low

0.3

0.4

0.6

V

I sink = 2mA

Vin

Input Switching Threshold

1.3

1.6

1.9

V

**

VHys

Input Switching Hysteresis

50

55

60

mV

**

Table 9 - FIFO Interface and Control Bus Pin Characteristics (VCCIO = 3.3V, Standard Drive Level)

Parameter Description

Min

Typ

Max

Units

Conditions

Voh

Output Voltage High

2.2

2.7

3.2

V

I source = 1mA

Vol

Output Voltage Low

0.3

0.4

0.5

V

I sink = 2mA

Vin

Input Switching Threshold

1.0

1.2

1.5

V

**

VHys

Input Switching Hysteresis

20

25

30

mV

**