Tektronix 2445A - Page 25

Speciflcatlon-2445A/2455A Service
Table 1-5
Option 09 (WR) Electrical Charactertatlca
Charactertatlca
Performance Requirement•
Data Setup Time
D
0
-D
15
and a
Data Hold Time
D
0
-D
15
and a
Minimum Clock Pulse Width
High
Low
Minimum Clock Period
SYNCHRONOUS MODE
25 ns.
0 ns.
20 ns.
20 ns.
50 ns.
Delay from Selected Clock Edge
to Word Out from
C/T/T
<55 ns.
Maximum Trigger Frequency
Minimum Coincidence
Between Data Inputs
(D
0
-D
15
and 0) Resulting in a Trigger
Maximum Coincidence
Between Data Inputs
(D
0
-D
15
and 0) Without Producing a Trigger
Delay from Input Word Coincidence
to Word Out
Input Voltages
Minimum Input Voltage
Maximum Input Voltage
Maximum Input Low Voltage
Minimum Input High Voltage
WORD RECOG OUT
High
Low
Input High Current
Input Low Current
€ Performance requirement not checked In manual.
ASYNCHRONOUS MODE
10 MHz.
<85 ns .
>20 ns.
<140 ns.
INPUTS AND OUTPUTS
-0 .5 v.a
5.5 v.a
0.6 v .a
2.0 v .a
> 2.5 V LSTTL output.
< 0.5 V LSTTL output.
<20 µA.a
>= -0.6 mA source.a
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