ST2349 datasheet(14/23 Pages) STMICROELECTRONICS

14 / 23 page

Electrical characteristics

ST2349

14/23

Symbol

Parameter

VCC =2.7

−3.6 V

VCC =4.3

−5.5 V

Unit

Min

Max

Min

Max

tPZL tPZH

tPLZ tPHZ

Output enable and

disable time

Dis

Data rate(1)

MHz

The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O

signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.

Table 11.

AC characteristics (test conditions: VL =2.5 – 2.7 V (load CL =15pF; Rup =10kΩ; driver

tr =tf ≤2 ns) over temperature range -40 °C to 85 °C) (continued)

Table 12.

AC characteristics (test conditions: VL =2.7 – 3.6 V (load CL =15pF; Rup =10kΩ; driver

tr =tf ≤ 2 ns) over temperature range -40 °C to 85 °C)

Symbol

Parameter

VCC =4.3

−5.5 V

Unit

Min

Max

tRVCC

Rise time I/OVCC

5ns

tFVCC

Fall time I/OVCC

3ns

tRVL

Rise time I/OVL

4ns

tFVL

Fall time I/OVL

3ns

tI/OVL-VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH

2.5

tPHL

4ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH

tPHL

tPZL tPZH

tPLZ tPHZ

Output enable and disable

time

Dis

Data rate(1)

MHz

The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O

signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.

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