Specifications

Rev 1 Dec.10 Proprietary and Confidential - Specifications subject to change 39
4.2 Digital I/O electrical information
The AirPrime SL808X Embedded Module uses 1.8 V CMOS for digital I/O. For
electrical characteristics, see Tabl e 4- 3 on page 39.
4.2.1 Electrical characteristics
Tabl e 4- 3 describes the electrical characteristics of 1.8 V CMOS pins.
70 TMS Test Mode Select High/Low Input High 1.17 - 2.1 Digital
Input Low -0.3 - 0.63
71 TCK Tes t C l o c k High/Low Input High 1.17 - 2.1 Digital
Input Low -0.3 - 0.63
72 TRST_N Test Reset Low Input High 1.17 - 2.1 Digital
Input Low -0.3 - 0.63
73 TDO Test Data Output High/Low Output High 1.35 - 1.8 Digital
Output Low 0 - 0.45
74 RTCK Return TCK High/Low Output High 1.35 - 1.8 Digital
Output Low 0 - 0.45
a. During the powered-off state, digital signal pins may not be in a high impedance state.
b. All values are preliminary.
Table 4-2: SL808X LGA pad pin assignments (Continued)
a
Pin Signal name Description
Active
state
Input / Output
(Direction to
module)
Voltage (V)
Min
b
Typ
b
Max
b
Type
Table 4-3: Electrical characteristics—1.8 V type (1V8) digital I/O
Parameter
a
I/O type Minimum Typical Maximum Condition
Input/Output
pin
V
IL
CMOS -0.3 V 0.63 V
V
IH
CMOS 1.17 V 2.1 V
V
OL
CMOS 0.45 V I
OL
= -4 mA
V
OH
CMOS 1.35 V 1.8 V I
OH
= 4 mA
I
OH
4mA
I
OL
-4 mA
a. ‘IL’—Input Low; ‘IH’—Input High; ‘OL’—Output Low; ‘OH’—Output High