PCA9522 데이터 시트보기 (PDF) - NXP Semiconductors.
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PCA9522 Datasheet PDF : 20 Pages
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NXP Semiconductors
PCA9522
Fast dual bidirectional bus buffer with hot insertion logic
9. Characteristics
Table 4. Characteristics
Tamb = 40 C to +85 C; voltages are specified with respect to ground (GND).
Symbol
Parameter
Conditions
Power supply
VCC
supply voltage
ICC
supply current
Start-up circuitry
operating
operating; VCC = VI(EN) = 5.5 V
standby; VCC = 5.5 V; VI(EN) = 0 V
Vth(UVLO)
undervoltage lockout
threshold voltage
VCC = VI(EN) = 5.5 V
Vpch
Ipch
Vth
precharge voltage
precharge current
threshold voltage
VSxxB floating; VCC = 3.3 V;
Vi(EN) > 1.2 V
VSxxB floating; VCC = 3.3 V;
Vi(EN) > 1.2 V
logic input
logic output
Buffer ports (SCLB, SCLC, SDAB, SDAC)
Vbus
Vth(IL)
bus voltage
LOW-level input
threshold voltage
Vth(IH)
HIGH-level input
threshold voltage
IIL
IO(sink)
Voffset
LOW-level input current
output sink current
offset voltage
IL
leakage current
Enable (EN)
drive current; Vbus < VCC
LOW-level; Vbus(out) = 0.4 V
input/output; VCC = 3.3 V
IOL = 4 mA; Vbus(in) = 50 mV
IOL = 500 A; Vbus(in) = 50 mV
IOL = 1.2 mA; Vbus(in) = 200 mV
Vbus = VCC
Ven
enable voltage
Vdis
disable voltage
II
input current
Ready (RDY)
active
standby
Ven > 1.2 V
VOL(RDY)
LOW-level output voltage Ipu = 3 mA
on pin RDY
IL
leakage current
Timing characteristics[1]
VOL(RDY) = VCC
td
delay time
VCC = 5 V; Vbus = 5 V; Rpu(bus) = 1 k;
CL(ext) = 120 pF; Figure 4
tf
fall time
VCC = 5 V; Vbus = 5 V; Rpu(bus) = 1 k;
CL(ext) = 120 pF; Figure 4
foper
operating frequency
Min
Typ
Max
Unit
2.7
-
5.5
V
-
9
-
mA
-
520
-
A
-
2.2
-
V
-
0.92
-
V
-
11
-
A
-
0.5VCC -
V
-
0.5VCC -
V
-
-
-
-
0.41VCC -
-
10
6
-
10
V
0.3VCC V
-
V
20
A
-
mA
-
165
200
mV
-
55
100
mV
-
60
100
mV
-
-
5
A
1.2
-
-
-
1
-
-
V
0.7
V
5
A
-
-
400
mV
-
-
5
A
-
30
-
ns
-
15
-
ns
0
400
-
kHz
PCA9522
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 28 September 2011
© NXP B.V. 2011. All rights reserved.
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