Timing Module Specifications

The following are specifications for the GT5105 Timing Module:

Parameter
Min
Typical
Max
Units

Internal Test Clock
Freq. Range
5
 
50M
Hz
Resolution

The greater of 1 Hz or 0.2%.

Internal B Clock
Freq. Range
1
 
120
MHz
Resolution

The greater of 1 HZ or 0.2%.

External Clock with Internal Strobe
Freq. Range
0
 
50
MHz
Pulse width
8
 
 
ns
XCLK to OCLK delay
60
 
70
ns
XCLK to OSTB delay  *
50
 
60
ns
Data setup time to XCLK **
12
 
 
ns
Data hold time to XCLK
5
 
 
ns

External Clock with External Strobe

Freq. Range
External Clock
0
 
50
MHz
External Strobe
0
 
50
MHz

Pulse width
External Clock
8
 
 
ns
External Strobe
8
 
 
ns
XCLK to OCLK delay
50
 
60
ns
XSTB to OSTB delay
50
 
60
ns
Data setup time to XSTB **
12
 
 
ns
Data hold time to OSTB
5
 
 
ns

External Control Inputs
Input Level High
2.0
 
5.1
V
Input Level Low
-0.1
 
0.8
V
Input Current High
 
 
80
mA
Input Current Low
 
 
80
mA

External Control Outputs
Type

74FCT162245T
Output Level High
2.4
 
2.4
V
Output Level Low
 
0.35
0.6
V
Output Current High
 
 
40
mA
Output Current Low
 
 
40
mA

Physical
Size
4”x3.5”
inches
Weight

100
g
Supply Current @ 5VDC
 
200
400
mA
Supply Current @ 12VDC
 
25
50
mA

* Timing depends on the strobe delay setting and typically is  XCLK to OCLK timing minus strobe delay setting.

** Setup time depends on the selected memory and is given for a typical configuration.

                                       Timing Module Specifications