ST2349 Ver la hoja de datos (PDF) - STMicroelectronics
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ST2349 Datasheet PDF : 23 Pages
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ST2349
Electrical characteristics
5.1
AC characteristics (device driven by open drain driver)
Table 7.
Symbol
AC characteristics - test conditions: VL = 1.65 −1.8 V (load CL = 15 pF; Rup = 4.7 kΩ;
driver tr = tf ≤ 2 ns) over temperature range -40 °C to 85 °C
Parameter
VCC = 1.8 −2.5 V VCC = 2.7 −3.6 V
VCC = 4.3 −
5.5 V
Unit
Min
Max
Min
Max Min Max
tRVCC Rise time I/OVCC
80
50
30 ns
tFVCC Fall time I/OVCC
3
3
3
ns
tRVL Rise time I/OVL
7
6
6
ns
tFVL
Fall time I/OVL
4
5
5
ns
Propagation delay time
tPLH
5
tI/OVL-VCC I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPHL
5
5
5
ns
5
5
ns
Propagation delay time
tPLH
5
tI/OVCC-VL I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-LH
tPHL
5
5
5
ns
7
7
ns
tPZL tPZH Output enable and
En
10
tPLZ tPHZ disable time
Dis
40
10
10 ns
40
40 ns
DR
Data rate(1)
1.6
2.5
4 MHz
1. 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 8.
Symbol
AC characteristics - test conditions: VL = 2.5 −2.7 V (load CL = 15 pF; Rup = 4.7 kΩ; driver
tr = tf ≤ 2 ns) over temperature range -40 °C to 85 °C
Parameter
VCC = 2.7 −3.6 V
Min
Max
VCC = 4.3 − 5.5 V
Unit
Min
Max
tRVCC
tFVCC
tRVL
tFVL
tI/OVL-VCC
tI/OVCC-VL
Rise time I/OVCC
Fall time I/OVCC
Rise time I/OVL
Fall time I/OVL
Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-LH
tPLH
tPHL
tPLH
tPHL
70
40
ns
3
3
ns
5
5
ns
3
3
ns
2
2
ns
3
3
ns
3
3
ns
4
4
ns
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