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CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
Document #: 001-01638 Rev. *E Page 11 of 26
Electrical Characteristics for V
CC
= 2.5V Over the Operating Range
Parameter Description
CYDC256B16,
CYDC128B16,
CYDC064B16,
CYDC128B08,
CYDC064B08
CYDC256B16,
CYDC128B16,
CYDC064B16,
CYDC128B08,
CYDC064B08
Unit
-40 -55
P1 I/O
Voltage
P2 I/O
Voltage Min. Typ. Max. Min. Typ. Max.
V
OH
Output HIGH Voltage (I
OH
= –2 mA) 2.5V (any port) 2.0 2.0 V
Output HIGH Voltage (I
OH
= –2 mA) 3.0V (any port) 2.1 2.1 V
V
OL
Output LOW Voltage (I
OL
= 2 mA) 2.5V (any port) 0.4 0.4 V
Output LOW Voltage (I
OL
= 2 mA) 3.0V (any port) 0.4 0.4 V
V
OL
ODR ODR Output LOW Voltage (I
OL
= 8 mA) 2.5V (any port) 0.2 0.2 V
3.0V (any port) 0.2 0.2 V
V
IH
Input HIGH Voltage 2.5V (any port) 1.7 V
DDIO
+ 0.3
1.7 V
DDIO
+ 0.3
V
3.0V (any port) 2.0 V
DDIO
+ 0.2
2.0 V
DDIO
+ 0.2
V
V
IL
Input LOW Voltage 2.5V (any port) –0.3 0.6 –0.3 0.6 V
3.0V (any port) –0.2 0.7 –0.2 0.7 V
I
OZ
Output Leakage Current 2.5V 2.5V –1 1 –1 1 µA
3.0V 3.0V –1 1 –1 1 µA
I
CEX
ODR ODR Output Leakage Current.
V
OUT
=V
CC
2.5V 2.5V –1 1 –1 1 µA
3.0V 3.0V –1 1 –1 1 µA
I
IX
Input Leakage Current 2.5V 2.5V –1 1 –1 1 µA
3.0V 3.0V –1 1 –1 1 µA
I
CC
Operating Current (V
CC
= Max.,
I
OUT
= 0 mA) Outputs Disabled
Ind. 2.5V 2.5V 39 55 28 40 mA
I
SB1
Standby Current (Both Ports TTL
Level) CE
L
and CE
R
≥ V
CC
– 0.2,
SEM
L
= SEM
R
= V
CC
– 0.2, f=f
MAX
Ind. 2.5V 2.5V 6 8 6 8 µA
I
SB2
Standby Current (One Port TTL
Level) CE
L
| CE
R
≥ V
IH
, f = f
MAX
Ind. 2.5V 2.5V 21 30 18 25 mA
I
SB3
Standby Current (Both Ports
CMOS Level) CE
L
& CE
R
≥
V
CC
− 0.2V, SEM
L
and SEM
R
>
V
CC
– 0.2V, f = 0
Ind. 2.5V 2.5V 4 6 4 6 µA
I
SB4
Standby Current (One Port CMOS
Level) CE
L
| CE
R
≥ V
IH
, f = f
MAX
[25]
Ind. 2.5V 2.5V 21 30 18 25 mA
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