ST2378E datasheet(7/14 Pages) STMICROELECTRONICS

7 / 14 page

ST2378E

7/14

AC ELECTRICAL CHARACTERISTICS - OPEN-DRAIN DRIVING

1) Typical values are referred to TA=25°C

2) Power Supply Range: VL,VCC 1.8V±5%, 2.5±0.2V, 3.3±0.3V, 5.0±0.5V.

3) Rise Time:10% to 90%, Fall Time 90% to 10%

4) tpd: 50% to 50%

5) For normal operation, ensure VL<(VCC + 0.3V). During power-up, VL >(VCC + 0.3V) will not damage the device

6) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device

switching in the same direction, either HIGH or LOW (tOSLH =| tPLHm -tPLHn|, tOSHL =|tPHLm -tPHLn|

7) Each translator equally loaded; parameter guaranteed by design

Symbol

Parameter

Test Condition(5)

Value

Unit

CL=15pF

Driver output

RT ≤ 50Ω

-40 to +85 °C

VL (V)

(2)

VCC (V)

(2)

Min.

Typ.(1)

Max.

tRVCC

Rise Time I/OVCC

(3)

1.8

210

300

1.8

5.0

150

tFVCC

Fall Time I/OVCC

(3)

1.8

5.0

tRVL

Rise Time I/OVL

(3)

1.8

210

300

1.8

5.0

150

tFVL

Fall Time I/OVL

(3)

1.8

5.0

tIOVL-VCC Propagation Delay Time(4)

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH

1.8

210

300

1.8

5.0

100

150

tPHL

1.8

5.0

tIOVCC-VL

Propagation Delay Time(4)

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH

1.8

210

300

1.8

5.0

150

tPHL

1.8

5.0

Maximum Data Rate

1.8

800

Kbps

1.8

5.0

800

tOSLH

tOSHL

Channel to Channel Skew Time

(note 6, 7)

1.8

5.0

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