CC2531 Datasheet, PDF (13/32 Pages) Texas Instruments – A USB Enabled System-On-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee Applications

CC2531
www.ti.com ........................................................................................................................................................................................ SWRS086 – SEPTEMBER 2009
Time
DEBUG_ CLK
P2_2
DEBUG_DATA
(to CC2531)
P2_1
DEBUG_DATA
(from CC2531)
P2_1
t₆
t₇
Figure 5. Debug Enable Timing
t₈
T0438-01
TIMER INPUTS AC CHARACTERISTICS
T_A = –40°C to 125°C, V_DD = 2 V to 3.6 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
Synchronizers determine the shortest input pulse that can be
Input capture pulse duration recognized. The synchronizers operate at the current system
clock rate (16 or 32 MHz).
DC CHARACTERISTICS
T_A = 25°C, VDD = 3 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
Logic-0 input voltage
Logic-1 input voltage
Logic-0 input current
Input equals 0 V
Logic-1 input current
I/O-pin pullup and pulldown resistors
Input equals V_DD
Logic-0 output voltage, 4-mA pins
Output load 4 mA
Logic-1 output voltage, 4-mA pins
Output load 4 mA
Logic-0 output voltage, 20-mA pins
Output load 20 mA
Logic-1 output voltage, 20-mA pins
Output load 20 mA
USB INTERFACE DC CHARACTERISTICS
T_A = 25°C, V_DD = 3.0 V to 3.6 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
USB pad voltage output high
VDD 3.6 V, 4 mA load
USB pad voltage output low
VDD 3.6 V, 4 mA load
MIN TYP MAX UNIT
t_SYSCLK
1.5
MIN TYP MAX UNIT
0.5 V
2.5
V
–50
50 nA
–50
50 nA
20
kΩ
0.5 V
2.4
V
0.5 V
2.4
V
TYP
MAX UNIT
3.4
V
0.2
V
Copyright © 2009, Texas Instruments Incorporated
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