ST2349 Просмотр технического описания (PDF) - STMicroelectronics
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ST2349 Datasheet PDF : 23 Pages
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Electrical characteristics
ST2349
Table 11.
Symbol
AC characteristics (test conditions: VL = 2.5 – 2.7 V (load CL = 15 pF; Rup = 10 kΩ; driver
tr = tf ≤2 ns) over temperature range -40 °C to 85 °C) (continued)
Parameter
VCC = 2.7 −3.6 V
Min
Max
VCC = 4.3 −5.5 V
Unit
Min
Max
tPZL tPZH Output enable and
En
6
tPLZ tPHZ disable time
Dis
40
6
ns
40
ns
DR
Data rate(1)
45
45
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 12. AC characteristics (test conditions: VL = 2.7 – 3.6 V (load CL = 15 pF; Rup = 10 kΩ; 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
tFVCC
Fall time I/OVCC
tRVL
Rise time I/OVL
tFVL
Fall time I/OVL
Propagation delay time tPLH
tI/OVL-VCC
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPHL
Propagation delay time tPLH
tI/OVCC-VL
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPHL
5
ns
3
ns
4
ns
3
ns
2.5
ns
4
ns
ns
2
ns
ns
4
ns
tPZL tPZH
tPLZ tPHZ
Output enable and disable En
time
Dis
6
ns
40
ns
DR
Data rate(1)
45
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%.
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