
Document #: 001-01638 Rev. *H Page 12 of 29
Electrical Characteristics for V
CC
= 2.5 V Over the Operating Range
Parameter Description
CYDC128B16 CYDC128B16
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) 2.5 V (any port) 2.0 2.0 V
Output HIGH voltage (I
OH
= –2 mA) 3.0 V (any port) 2.1 2.1 V
V
OL
Output LOW voltage (I
OL
= 2 mA) 2.5 V (any port) 0.4 0.4 V
Output LOW voltage (I
OL
= 2 mA) 3.0 V (any port) 0.4 0.4 V
V
OL
ODR ODR Output LOW voltage (I
OL
= 8 mA) 2.5 V (any port) 0.2 0.2 V
3.0 V (any port) 0.2 0.2 V
V
IH
Input HIGH voltage 2.5 V (any port) 1.7 V
DDIO
+ 0.3 1.7 V
DDIO
+ 0.3 V
3.0 V (any port) 2.0 V
DDIO
+ 0.2 2.0 V
DDIO
+ 0.2 V
V
IL
Input LOW voltage 2.5 V (any port) –0.3 0.6 –0.3 0.6 V
3.0 V (any port) –0.2 0.7 –0.2 0.7 V
I
OZ
Output leakage current 2.5 V 2.5 V –1 1 –1 1 μA
3.0 V 3.0 V –1 1 –1 1 μA
I
CEX
ODR ODR output leakage current. V
OUT
=V
CC
2.5 V 2.5 V –1 1 –1 1 μA
3.0 V 3.0 V –1 1 –1 1 μA
I
IX
Input leakage current 2.5 V 2.5 V –1 1 –1 1 μA
3.0 V 3.0 V –1 1 –1 1 μA
I
CC
Operating current (V
CC
= Max,
I
OUT
= 0 mA) Outputs disabled
Industrial 2.5 V 2.5 V 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
Industrial 2.5 V 2.5 V 6 8 6 8 μA
I
SB2
Standby current (one port TTL
level) CE
L
| CE
R
≥ V
IH
, f = f
MAX
Industrial 2.5 V 2.5 V 21 30 18 25 mA
I
SB3
Standby current (both ports
CMOS level) CE
L
and CE
R
≥
V
CC
− 0.2V, SEM
L
and SEM
R
>
V
CC
– 0.2V, f = 0
Industrial 2.5 V 2.5 V 4 6 4 6 μA
I
SB4
Standby current (one port CMOS
level) CE
L
| CE
R
≥ V
IH
, f = f
MAX
[1]
Industrial 2.5 V 2.5 V 21 30 18 25 mA
1. MAX = 1/t
RC
= All inputs cycling at f = 1/t
RC
(except output enable). f = 0 means no address or control lines change. This applies only to inputs at CMOS level standby
I
SB3.
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