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Toshiba Electronic Components Datasheet

TC35894FG Datasheet

Mobile Peripheral

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CMOS Digital Integrated Circuit Silicon Monolithic
TC35894FG
Mobile Peripheral Devices
Overview
The TC35894FG 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 TC35894FG registers by software.
TC35894FG
Technical Datasheet
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
P-LQFP44-1010-0.80-001
Weight: 0.35g (Typ.)
Operating voltage 1.62 V to 3.60 V
10mm × 10mm LQFP package (44 pins,
0.8mm pin pitch, maximum 1.7mm height)
© 2015-2019
Toshiba Electronic Devices & Storage Corporation
1 / 121
2019-05-14
Rev. 1.42


Toshiba Electronic Components Datasheet

TC35894FG Datasheet

Mobile Peripheral

No Preview Available !

TC35894FG
Technical Datasheet
Table of content
1. Overview .......................................................................................................................................................... 8
2. FUNCTIONAL OVERVIEW.............................................................................................................................. 9
3. Terminal ......................................................................................................................................................... 12
3.1. Pin Layout (44 Pins, LQFP Package) ..................................................................................................... 12
3.2. Pin 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 Strength Programming....................................................................................................... 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 TC35894FG
Description Mobile Peripheral
Maker Toshiba
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TC35894FG Datasheet PDF






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