CY2545
CY2547
Document #: 001-13196 Rev. *A
Page 10 of 15
DC Electrical Specifications
Parameter
Description
Conditions
Min
Typ
Max
Unit
VOL
Output low voltage
IOL = 2 mA, drive strength = [00]
–
–
0.4
V
IOL = 3 mA, drive strength = [01]
IOL = 7 mA, drive strength = [10]
IOL = 12 mA, drive strength = [11]
VOH
Output high voltage
IOH = –2 mA, drive strength = [00]
VDD_CLK_BX
– 0.4
––
V
IOH = –3 mA, drive strength = [01]
IOH = –7 mA, drive strength = [10]
IOH = –12 mA, drive strength = [11]
VOLSD
Output low voltage, SDA
IOL = 4 mA
–
–
0.4
V
VIL1
Input low voltage of PD#/OE,
RST, FS, and SSON
–
–
0.2*VDD
V
VIL2
Input low voltage of CLKIN for
CY2545
–
–
0.1*VDD
V
VIL3
Input low voltage of EXCLKIN for
CY2545
–
–
0.18
V
VIL4
Input low voltage of CLKIN,
EXCLKIN for CY2547
–
–
0.1*VDD
V
VIH1
Input high voltage of PD#/OE,
RST, FS, and SSON
0.8*VDD
––
V
VIH2
Input high voltage of CLKIN for
CY2545
0.9*VDD
––
V
VIH3
Input high voltage of EXCLKIN
for CY2545
1.62
–
2.2
V
VIH4
Input high voltage of CLKIN,
EXCLKIN for CY2547
0.9*VDD
––
V
IILPD
Input low current of RST and
PD#/OE
VIL = 0V
–
–
10
µA
IIHPD
Input high current of RST and
PD#/OE
VIH = VDD
–
–
10
µA
IILSR
Input low current of SSON and
FS
VIL = 0V (Internal pull dn = 160k typ)
–
–
10
µA
IIHSR
Input high current of SSON and
FS
VIH = VDD (Internal pull dn = 160k typ)
14
–
36
µA
RDN
Pull down resistor of
(CLK1-CLK8) when off,
CLK6/SSON and CLK3/FS
100
160
250
k
Ω
IDD
[1,2]
Supply current for CY2547
PD# = High, No load
–
20
–
mA
Supply current for CY2545
PD# = High, No load
–
22
–
mA
IDDS
[1]
Standby current
PD# = Low, No load, with I2C circuit not
in Keep Alive Mode
–3
–
µA
IPD
[1]
Power down current
PD# = Low, No load, with I2C circuit in
Keep Alive Mode
––
1
mA
CIN
[1]
Input capacitance
SSON, RST, PD#/OE or FS inputs
–
7
pF
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