FMA1127DC-30S Fujitsu Semiconductor America Inc, FMA1127DC-30S Datasheet - Page 23
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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
Power Connection
There are two methods to supply power to the FMA1127DC touch sensor controller. One is to receive V25 core voltage from internal LDO and
the other is to receive core voltage from an external power supply. In the case of using internal LDO, the LDO should be turned on in Sleep mode
and hence it will cause slightly higher power consumption than using an external power supply for V25 core voltage.
In Case E, if VPH receives 2.5V, internal LDO can not be used because VLDO can not output 2.5V when VPH receives 2.5V from external LDO.
Case A.
VPH: External 5V
VLDO: External 2.5V (Internal LDO Off: Register Control)
Case C.
VPH: External 3.3V
VLDO: External 2.5V (Internal LDO Off: Register Control)
VLDO
VLDO
VGG
VGG
VPH
VPH
V25
V25
IO interface to over chip is 3.3V
IO interface to over chip is 5V
GND
GND
2.5V
3.3V
2.5V
5V
Case E.
VPH: External 2.5V
VLDO: External 2.5V
VLDO
External LDO
External LDO
VGG
VPH
V25
IO interface to over chip is 2.5V
GND
2.5V
Case B.
VPH: External 5V
VLDO: Internal LDO 2.5V
Case D.
VPH: External 3.3V
VLDO: Internal LDO 2.5V
External LDO
VLDO
VLDO
VGG
VGG
VPH
VPH
V25
V25
IO interface to over chip is 3.3V
IO interface to over chip is 5V
10µF
10µF
GND
GND
3.3V
5V
External LDO
External LDO
FMA1127DC
Fujitsu Microelectronics America, Inc.
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