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Product Overview
Functional Characteristics
Typical Application
Technical Support

Security Chip-CCM4202S-EL

CCM4202S-EL is designed based on independent Cortex-M4F core. It is distinguished by low power consumption, high performance, multifunction and high security level. It can be widely used in It can be widely used in fingerprint modules, smart door locks, POS, online banking, mobile payment, data security, secure communication, copyright control, smart grids and other fields.The chip’s typical operating frequency is 120MHz.

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Block diagram of CCM4202S-EL

Package Type

Pin	Package type and pin assignment(mm)
Pin	QFN88 (10100.9)	QFN88_POS (10100.9)	BGA121 (881.07)
SPI	3	2	3
I2C	3	3	3
SSI	1	1(2wires)	2
SCI	6	3	3
ISO7816	1	2	2
USB	1(USB1.1)	1	1(USB_OTG2.0)
ADC(Standalone+Multiplexing)	3+8	1+7	3+5
DAC	1	1	1
PWM (Multiplexing)	4	4	4
MCC	0	1	1
TSI (Touchscreen Multiplexing）	16	6	16
EPORT (Multiplexing）	38	25	37
SDIO(Tamper Resistance)	1	8	8

Functional Characteristics

CPU Features

● 32-bit High-Performance Core Cortex-M4F
● Operating frequency of 120MHz
● Supporting DSP instructions
● Compatible with IEEE754 single-precision FPU
● Memory protection unit (MPU)
● 16KB Cache
● 外部总线支持8bit/16bit/32bit访问
● External bus supports 8bit/16bit/32bit access
● Built-in sleep mode for extremely low power consumption
On-chip Memory Resources

● 384K bytes of SRAM
● 24K bytes of ROM
● 768K bytes of EFLASH (Code: 512KB, Data: 256KB)
Internal Modules

● DMA/EDMA
● 4 Timers (PIT32)
● Watchdog (WDT)
● 3 Time Counters (TC)
● Real-time clock (RTC)
● Nested vectored interrupt controller (NVIC)
Security Features 1

● Asymmetric algorithms
- 1024bit RSA/2048bit RSA
- 256bit SM2 Prime Field
● Symmetric algorithms
- DES/3DES supporting ECB/CBC modes
- AES supporting ECB/CBC/CFB/OFB/CTR modes
- SM4 supporting ECB/CBC/CFB/OFB/CTR modes
● Hashing algorithms
- SM3
- SHA-0/ SHA-1/ SHA-224/ SHA-256/ SHA-384/ SHA-512
● CRC
- Supporting CRC32/ CRC16/ CRC8
- Supporting DMAC interaction
● Memory protection mechanism
- Application-oriented memory partitioning with hardware support for secure isolation
- Scrambling bus
Security Features 2

●  True random number generator, compliant with FIPS 140-2 standards and national commercial cryptography standards
●  Safety detection and protection Unit
- Voltage detection unit
  - Light detection unit
  - Power supply burr detection unit
  - Metal shielding protection
  - Temperature detection unit
  - Frequency detection unit
  - Clock and reset pulse filtering
- Optimizing wire routing for security
●  PCI certification satisfaction
  - Supporting 128 Byte NVSRAM
  - Supporting open-lid detection signal, configurable for dynamic (4 pairs) / static (8 channels) detection modes
  - Supporting voltage detection
  - Supporting temperature detection
  - Supporting self-destruct and clear NVSRAM
Other Features

● Unique serial number for each product
●  Main power input voltage: 1.6V~5.5V, PCI domain input voltage: 1.62V~3.63V
●  Built-in LDO power output
●  Typical power consumption: 120uA/MHz
●  Sleep mode: 0.3uA
●  Supporting internal power-on reset and external reset