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CSS34P16
The CSS34P16 series from CHIPSEA contains USB-C controllers that support USB Type-C and PD2.0 protocols, with 8-bit embedded MCUs. The main frequency is up to 14.4 MHz. Additionally, there are built-in 8 KB OTPs. This series can be used in mobile power, energy storage power, car chargers, and wireless chargers.

The CSS34P16 series from CHIPSEA contains USB-C controllers that support USB Type-C and PD2.0 protocols, with 8-bit embedded MCUs. The main frequency is up to 14.4 MHz. Additionally, there are built-in 8 KB OTPs. This series can be used in mobile power, energy storage power, car chargers, and wireless chargers.


8-bit single-chip MCU
—Internal 14.4 MHz oscillator, precision: ±1%
—Built-in 4K × 16-bit OTP program memory (supports 2K16 twice burn-in)
—232-byte data memory (SRAM)
Supports USB PD protocol
9-channel 12-bit ADC
Internal reference voltage: 1.4 V/2 V/3 V/4 V, precision: ±1% @ 25 ºC
Analog comparator
Power-on reset and hardware reset delay timers (1 ms, 10 ms, 49 ms, and 98 ms)
Internal low voltage reset (LVR)
Programmable pre-scaled 12-bit timer/counter 2
Programmable pre-scaled 12-bit timer/counter 3
Programmable pre-scaled 12-bit timer/counter 4
Extended watchdog timer (32K WDT)
Operating voltage range
2.7 V–5.5 V @ FCPU = 1 MHz (instruction cycle)
3.6 V–5.5 V @ FCPU = 4 MHz (instruction cycle)
Operating temperature range
-40 ºC–85 ºC (industrial grade)
MCU operating current
Normal mode: 0.85 mA @ 4 MHz, 3 V
Current under sleep mode is lower than 1 μA
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Technical Documentation
Product manual(1)
CSS34P16用戶手冊
edition：REV 1.2
Evaluation and development data(1)
Design and development
Tools/Software
CSWrite V3.2.4
CSWriterUx V3.2.4 is the latest burning tool software of Core Sea Technology. Support core sea 8bit MCU, 32bit MCU.
CSU-IDE
Core sea 8-bit MCU/SOC integrated development environment 1. Integrated C compiler, assembler, linker, window 2. Support standard C language and assembly language development 3 Example code of integrated chips
Manual download Design document download Software Download
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