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Toshiba Electronic Components Datasheet

TC35894XBG Datasheet

Mobile Peripheral

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CMOS Digital Integrated Circuit Silicon Monolithic
TC35894XBG
Mobile Peripheral Devices
Overview
The TC35894XBG is IO Expander LSI which has I2C bus slave for
host interface, PWM/Timer control, GPIO control, and key matrix
control. Those features are set and selected at the TC35894XBG
registers by software.
TC35894XBG
Technical Datasheet
P-TFBGA36-0303-0.50AZ
Weight: 0.025g (Typ.)
Features
I2C Slave for host interface
GPIO Functions
Maximum 24 general purpose
input/output ports
Selectable input or output port
Selectable pull-up or pull-down /
connecting or non-connecting resistor
Selectable drive current (3 types)
Supporting pseudo open drain output
buffer
Selectable interrupt detecting by level /
edge / both edges and active low / high
Automatic escape from sleep mode by
signal input
Key Board
Key Matrix (Max 8 × 12 = 96 keys)
Support special function keys and
dedicated keys
Key de-bouncing function
PWM / Timer
3 timer module for LED back light control
LED switching control by PWM
sequencer
Internal oscillator for system clock
Sleep mode for reducing of power
consumption
Operating voltage 1.62 V to 3.60 V
3.5 mm × 3.5 mm BGA package (36 balls,
0.5 mm ball pitch, maximum 1.2 mm height)
© 2015-2019
Toshiba Electronic Devices & Storage Corporation
1 / 121
2019-05-14
Rev. 1.42


Toshiba Electronic Components Datasheet

TC35894XBG Datasheet

Mobile Peripheral

No Preview Available !

TC35894XBG
Technical Datasheet
Table of contents
1. Overview .......................................................................................................................................................... 8
2. FUNCTIONAL OVERVIEW.............................................................................................................................. 9
3. BALL LAYOUT ............................................................................................................................................... 12
3.1. Ball Layout ............................................................................................................................................... 12
3.2. Ball Table................................................................................................................................................. 13
4. Power-On, Reset and Supply Surveillance.................................................................................................... 15
4.1. Power-On Sequence ............................................................................................................................... 15
4.2. Power-On Reset ...................................................................................................................................... 15
4.3. Power-On Watchdog ............................................................................................................................... 16
4.4. Reset Tree ............................................................................................................................................... 17
4.5. Reset Registers ....................................................................................................................................... 18
4.6. Initial Configuration during Reset ............................................................................................................ 19
5. CLOCKING SYSTEM..................................................................................................................................... 20
5.1. Clock Source Selection ........................................................................................................................... 20
5.2. Clock Frequency Setting ......................................................................................................................... 21
5.3. Operating Modes ..................................................................................................................................... 22
5.3.1. SLEEP mode..............................................................................................................................................................22
5.3.2. OPERATION mode ....................................................................................................................................................22
5.4. Auto Sleep Feature.................................................................................................................................. 23
5.5. Clock System Register settings............................................................................................................... 24
6. IOM (INPUT/OUTPUT CONFIGURATION)................................................................................................... 28
6.1. Functional I/O Multiplex ........................................................................................................................... 28
6.1.1. I/O Multiplexing for KPX [7:0] .....................................................................................................................................31
6.1.2. I/O Multiplexing for KPY [10:0] ...................................................................................................................................32
6.1.3. I/O Multiplexing for KPY [11] ......................................................................................................................................33
6.1.4. I/O Multiplexing for PWM [2:0] ....................................................................................................................................34
6.1.5. I/O Multiplexing for DIR24 (clock input) ......................................................................................................................34
6.2. Pull Resistor Programming...................................................................................................................... 35
6.3. Output Drive Ability Setting ..................................................................................................................... 37
7. I2C................................................................................................................................................................... 39
7.1. Re-Programming of the I2C Address....................................................................................................... 40
7.2. I2C Transfer ............................................................................................................................................. 40
7.2.1. I2C Write Operation ....................................................................................................................................................40
7.2.2. I2C Read Operation ....................................................................................................................................................41
7.2.3. I2C General Call..........................................................................................................................................................42
7.3. I2C Register Map ..................................................................................................................................... 42
8. TIM (Timer Module)........................................................................................................................................ 43
8.1. Timer Features ........................................................................................................................................ 43
8.2. Timer Architecture ................................................................................................................................... 43
8.3. Simple Timer Control............................................................................................................................... 44
2 / 121
2019-05-14


Part Number TC35894XBG
Description Mobile Peripheral
Maker Toshiba
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TC35894XBG Datasheet PDF






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