CC2480_11 Datasheet, PDF (14/48 Pages) Texas Instruments – Z-Accel 2.4 GHz ZigBee Processor

CC2480
5.11 Control AC Characteristics
T_A= -40°C to 85°C, VDD=2.0V to 3.6V if nothing else stated.
Table 14: Control Inputs AC Characteristics
Parameter
Min
Typ
Max Unit
Condition/Note
System clock,
16
f_SYSCLK
t_SYSCLK= 1/ f_SYSCLK
RESET_N low
250
width
Interrupt pulse
width
t_SYSCLK
32 MHz
ns
ns
System clock is 32 MHz when crystal oscillator is used.
System clock is 16 MHz when calibrated 16 MHz RC
oscillator is used.
See item 1, Figure 1. This is the shortest pulse that is
guaranteed to be recognized as a complete reset pin
request. Note that shorter pulses may be recognized but
will not lead to complete reset of all modules within the
chip.
See item 2, Figure 1.This is the shortest pulse that is
guaranteed to be recognized as an interrupt request. In
PM2/3 the internal synchronizers are bypassed so this
requirement does not apply in PM2/3.
1
RESET_N
GPIOx
2
2
GPIOx
Figure 1: Control Inputs AC Characteristics
CC2480 Data Sheet SWRS074A
Page 14 of 43