am79c30a Advanced Micro Devices, am79c30a Datasheet - Page 82

• Manufacturer Part Number: am79c30a
• Description: Digital Subscriber Controller ?dsc ?circuit
• Manufacturer: Advanced Micro Devices

Reset and Hookswitch Timing
Reset Timing
Hookswitch Timing
Note:
Due to clock start-up times, the hookswitch Min and Max Debounce times are approximately 3 ms greater in Power-Down Mode.
82
Parameter Symbol
t
t
t
t
Parameter Symbol
t
t
RES
PHRL
F
R
B
1
HSW
INT
RESET
V
CC
Parameter Description
Reset Pulse Width
Power Stable to Reset Low
Reset Transition Fall Time
Reset Transition Rise Time
Parameter Description
Debounce Time
HSW Detected to INT Delay
4.75 V
Figure 32. Hookswitch Debounce Timing
Am79C30A/32A Data Sheet
t
Figure 31. Reset Timing
B
V
IL
t
1
V
t
t
PHRL
R
IH
t
RES
t
F
Min
Min
16
1
0
1
16.25
Max
Max
370
20
1
09893H-23
09893H-24
Units
Units
ms
ms
µs
µs
µs
µs