CN8478 Datasheet, PDF (202/221 Pages) Conexant Systems, Inc – Multichannel Synchronous Communications Controller (MUSYCC)

7.0 Electrical and Mechanical Specifications
CN8478/CN8474A/CN8472A/CN8471A
7.2 Timing and Switching Specifications
Multichannel Synchronous Communications Controller (MUSYCC™)
7.2.5 Serial Interface Timing and Switching Characteristics
Serial interface timing and switching characteristics are provided in Tables 7-14
through 7-17 and Figures 7-15 through 7-18.
Table 7-14. Serial Interface Clock (RCLK, TCLK) Parameters
Symbol
Parameter
F_c
Clock Frequency
T_r
Clock Rise Time
T_f
Clock Fall Time
Min
Max
Units
DC
8.192 ±10%
MHz
—
2
ns
—
2
ns
Figure 7-15. Serial Interface Clock (RCLK,TCLK) Waveform
1/F_c
RCLK, TCLK
8478_037
T_r
T_f
Table 7-15. Serial Interface I/O Timing Parameters
Symbol
Parameter
T_val
Clock to Signal Valid Delay
T_ds
Data Setup Time
T_dh
Data Hold Time
Min
Max
Units
2
20
ns
10
—
ns
10
—
ns
Table 7-16. Serial Interface Clock Hysteresis (RCLK, TCLK, with Schmitt Trigger)
Symbol
Parameter
Min
V_TH
High Threshold Voltage
V_TL
Low Threshold Voltage
V_H
Hysteresis
0.7* VDDi
0
0.3
Max
—
0.3* VDDi
—
Units
V
V
V
7-16
Conexant
100660E