CP2400 SILABS [Silicon Laboratories], CP2400 Datasheet - Page 48

• Manufacturer Part Number: CP2400
• Description: 128/64 SEGMENT LCD DRIVER
• Manufacturer: SILABS [Silicon Laboratories]

CP2400/1/2/3
8.2.
During power-up, the CP2400/1/2/3 is held in the reset state until V
occurs between the time V
the Electrical Characteristics of the power-on reset circuit.
8.3.
The RST pin provides a means for external circuitry to force the CP2400/1/2/3 into a reset state. Asserting RST for
at least T
driver or add an external pull-up resistor to avoid erroneous noise-induced resets. The CP2400/1/2/3 will exit the
reset state and generate a Reset Complete Interrupt approximately one T
detected on RST. Refer to Table 3.3 on page 16 for the Electrical Characteristics.
48
Power-On Reset
External Pin Reset
RST
will cause the CP2400/1/2/3 to enter the reset state. It is recommended to drive RST with a push-pull
Logic HIGH
Logic LOW
1.0
V
DD
RST
reaches V
/RST
RST
Figure 8.1. Reset Timing
and the time the device is released from reset. Refer to Table 3.3 for
Power-On
Rev. 1.0
Reset
T
PORDelay
DD
settles above V
VDD
STARTUP
t
delay after a logic high is
RST
. A delay (T
PORDelay
)