FMA1127DC-30S Fujitsu Semiconductor America Inc, FMA1127DC-30S Datasheet - Page 24
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FMA1127DC-30S
Manufacturer Part Number
FMA1127DC-30S
Description
IC CTLR TOUCH SENSOR 12CH 30SSOP
Manufacturer
Fujitsu Semiconductor America Inc
Specifications of FMA1127DC-30S
Mfg Application Notes
Interfacing FMA1127 with Fujitsu Microcontrollers PCB and Layout Guidelines FMA1127 Initilization and Register
Touch Panel Interface
*
Number Of Inputs/keys
*
Resolution (bits)
*
Data Interface
I²C
Data Rate/sampling Rate (sps, Bps)
*
Voltage Reference
*
Voltage - Supply
2.4 V ~ 5.3 V
Current - Supply
140µA
Operating Temperature
-40°C ~ 90°C
Mounting Type
Surface Mount
Package / Case
30-SSOP
Output Type
Logic
Interface
I²C
Input Type
Logic
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
865-1048-2
Touch Sensor Controller
22
Power Sequence
To initialize the FMA1127DC properly, please refer to the Power Sequence below when the power is given initially during boot-up.
If the reset transition time during power on does not follow the time sequence below, the Internal LDO and oscillator would not operate
normally.
The Power Sequence is based on the Power Connection type and is shown in the following example.
Power Connection Type is Case B or Case D
Power Connection Type is Case A, Case C, or Case E
In order to delay RESET_N transition about 0.1msec than VDDH transition, 10KΩ resistor and 1uF capacitor should be attached on
RESET_N pin. Please see the typical application circuits described in the previous chapter. Also note that pulse width of RESET_N which is
active low and generated by MCU must be longer than 0.1msec to be valid RESET signal.
Fujitsu Microelectronics America, Inc.
RESET_N
VDDH(IO)
VDDH (2.5V or 3.3V or 5.5V) x 0.9
V25(Core)
RESET_N
VDDH(IO)
VDDH (3.3V or 5.5V) x 0.9
V25 (2.5V) x 0.9
Fixed “L”
Fixed “L”
Reset Period
Min 0.1 msec
Reset Period
Min 0.1 msec
GND + 0.3V
GND + 0.3V