Z86319 Datasheet, PDF (4/23 Pages) Zilog, Inc. – PS/2 MOUSE CONTROLLER

Z86319
PS/2 Mouse Controller
PIN FUNCTIONS
RCIN. A precision 1% resistor is connected to RCIN,
generating oscillation with an internal capacitor.
Resistor values and corresponding typical frequencies are
shown in Table 2 and graph chart (Figure 3).
Zilog
Table 2. Resistor Values and Corresponding
Typical Frequencies
External Resistor
14.0K
15.0K
16.0K
17.0K
18.0K
19.0K
20.0K
21.0K
22.0K
23.0K
Average Frequency
5.01 MHz
4.70 MHz
4.43 MHz
4.19 MHz
3.97 MHz
3.78 MHz
3.60 MHz
3.44 MHz
3.30 MHz
3.16 MHz
6
5
4
3
2
1
0
14
15
16
17
18
19
20
21
22
23
RESISTOR VALUE (K OHMS)
Figure 3. Z86319 RC Frequency in Function of the External Resistance
(typical numbers)
4
PRELIMINARY
DS97KEY1605