K50_100 | 10K @ CNY32.06 - 10K @ CNY39.42 | ARM Cortex-M4 | | 100 | 68, 128 | 512 | 4 | External bus interface, SDHC Controller | 4 - 6 | 2, 3 | 2 | 1 | 1 (FS) | Device Charge Detect | 80 - 144 | 16-bit (SAR) x 2 | 12-bit x 2 | 12 | 13 | 4 | Comparator, OPAMP, PGA, TRIAMP, VREF | CRC, Cryptography Accelerator, RNG | Touch System Interface | 1.71 | 3.6 | LQFP, MAPBGA | 12x12x1.6, 14x14x1.7, 13x13x1.7, 8x8x1.5, 20x20x1.6 | 0.5 - 1 | -40 to 85 |
K50_72 | 10K @ CNY23.80 - 10K @ CNY30.06 | ARM Cortex-M4 | | 72 | 32 - 66 | 160, 288 | 2 | External bus interface | 3 - 5 | 1, 2 | 2 | 1 | 1 (FS) | Device Charge Detect | 64 - 121 | 16-bit (SAR) x 2 | 12-bit x 1, 6-bit x 1 | 12 | 13 | 4 | Comparator, OPAMP, PGA, TRIAMP, VREF | CRC | Touch System Interface | 1.71 | 3.6 | LQFP, MAPBGA | 12x12x1.6, 14x14x1.7, 8x8x1.5, 10x10x1.6 | 0.5, 0.65 | -40 to 85 |
K51_100 | 10K @ CNY33.23 - 10K @ CNY39.42 | ARM Cortex-M4 | | 100 | 64 - 128 | 256, 512 | 4 | External bus interface, SDHC Controller | 4, 6 | 2, 3 | 2 | 1 | 1 (FS) | Device Charge Detect | 80 - 144 | 16-bit (SAR) x 2 | 12-bit x 2 | 12 | 13 | 4 | Comparator, OPAMP, PGA, TRIAMP, VREF | CRC | Touch System Interface, Segment LCD | 1.71 | 3.6 | MAPBGA, LQFP | 13x13x1.7, 12x12x1.6, 8x8x1.5, 14x14x1.7, 20x20x1.6 | 0.5 - 1 | -40 to 85 |
K51_72 | 10K @ CNY26.35 - 10K @ CNY32.54 | ARM Cortex-M4 | | 72 | 34, 66 | 160, 288 | 2 | | 3 - 5 | 1, 2 | 1, 2 | 1 | 1 (FS) | Device Charge Detect | 64 - 121 | 16-bit (SAR) x 2 | 12-bit x 1, 6-bit x 1 | 12 | 13 | 4 | Comparator, OPAMP, PGA, TRIAMP, VREF | CRC | Touch System Interface, Segment LCD | 1.71 | 3.6 | MAPBGA, LQFP | 8x8x1.5, 12x12x1.6, 10x10x1.6, 14x14x1.7 | 0.5, 0.65 | -40 to 85 |
K53_100 | 10K @ CNY40.24 - 10K @ CNY41.96 | ARM Cortex-M4 | | 100 | 68, 128 | 512 | 4 | External bus interface, SDHC Controller | 6 | 3 | 2 | 1 | 1 (FS) | Device Charge Detect | 144 | 16-bit (SAR) x 2 | 12-bit x 2 | 12 | 13 | 4 | Comparator, OPAMP, PGA, TRIAMP, VREF | CRC, Cryptography Accelerator, RNG | Touch System Interface, Segment LCD | 1.71 | 3.6 | MAPBGA, LQFP | 13x13x1.7, 20x20x1.6 | 0.5, 1 | -40 to 85 |