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cubloc:cb405rt

  • Based on the CB405 core.
  • Equipped with a built-in accurate RTC (DS3231).
  • Equipped with a built-in 16-bit A/D converter (8 channels).

The CB405RT is a product, which adds an RTC and a 16-bit ADC to the original CB405. The external dimensions and pinout are the same as the CB405 with the exception that ports P32 to P37 are used for the 16-bit ADC and therefore cannot be used.

The CB405RT has a built-in realtime clock (DS3231), which automatically compensates for clock errors due to temperature changes, sporting improved accuracy over the existing RTC.

When a supercapacitor is connected to VBB, data memory is preserved even when the power supply is interrupted. Since the supercapacitor is charged automatically when the device is powered, the supercapacitor can compensate for the power supply if interrupted, eliminating the need for batteries.

Pin description

Pin Name I/O Description
SOUT 1 OUT DOWNLOAD SERIAL OUTPUT
SIN 2 IN DOWNLOAD SERIAL INPUT
ATN 3 IN DOWNLOAD SERIAL INPUT
GND 4, 22, 64 POWER IN GROUND
VCC 21, 44 POWER IN Input Power 5.1V ~ 5.5V
AVREF 63 IN ADC Reference voltage
VBB 24 POWER IN Data Memory battery backup power input
RES 23 IN Reset (Low active)
TTLTXE 61 OUT TTL level RS232 TX
TTLRXE 62 IN TTL level RS232 RX
TXE 41 OUT RS232 Tx
RXE 42 IN RS232 Rx

I/O Block 0

Name Pin I/O Description
P0 5 I/O SPI SS
P1 6 Input SPI SCK
P2 7 Input SPI MOSI
P3 8 Input SPI MISO
P4 9 I/O
P5 10 I/O PWM CHANNEL 0
P6 11 I/O PWM CHANNEL 1
P7 12 I/O PWM CHANNEL 2

I/O Block 1

P8 13 I/O TTL232 RX2
P9 14 I/O TTL232 TX2
P10 15 I/O
P11 16 I/O PWM CHANNEL 6
P12 17 I/O PWM CHANNEL 7
P13 18 I/O PWM CHANNEL 8
P14 19 I/O
P15 20 I/O

I/O Block 2

P16 25 I/O AD CHANNEL 0
P17 26 I/O AD CHANNEL 1
P18 27 I/O AD CHANNEL 2
P19 28 I/O AD CHANNEL 3
P20 29 I/O AD CHANNEL 4
P21 30 I/O AD CHANNEL 5
P22 31 I/O AD CHANNEL 6
P23 32 I/O AD CHANNEL 7

I/O Block 3

P24 33 I/O
P25 34 I/O
P26 35 I/O
P27 36 I/O PWM3
P28 37 I/O PWM4 / INT0
P29 38 I/O PWM5 / INT1
P30 39 I/O INT2
P31 40 I/O INT3
Name Pin I/O Description
HADCH0 45 INPUT 16bit AD CHANNEL 0
HADCH1 46 INPUT 16bit AD CHANNEL 1
HADCH2 47 INPUT 16bit AD CHANNEL 2
HADCH3 48 INPUT 16bit AD CHANNEL 3
HADCH4 49 INPUT 16bit AD CHANNEL 4
HADCH5 50 INPUT 16bit AD CHANNEL 5
HADCH6 / P38 51 I/O 16bit AD CHANNEL 6, P38
HADCH7 / P39 52 I/O 16bit AD CHANNEL 7, P39

I/O Block 5

P40 60 I/O SCL CUNET
P41 59 I/O SDA CUNET
P42 58 I/O RX1 TTLRX ch1
P43 57 I/O TX1 TTLTX ch1
P44 56 I/O
P45 55 I/O
P46 54 I/O HCNT0 ch0
P47 53 I/O HCNT1 ch1

I/O Block 6

P48 65 I/O
P49 66 I/O
P50 67 I/O
P51 68 I/O PWM CANNEL 9
P52 69 I/O PWM CANNEL 10
P53 70 I/O PWM CANNEL 11
P54 71 I/O
P55 72 I/O

I/O Block 7

P56 80 I/O RX3 TTLRX
P57 79 I/O TX3 TTLTX
P58 78 I/O
P59 77 I/O
P60 76 I/O
P61 75 I/O
P62 74 I/O
P63 73 I/O
cubloc/cb405rt.txt · Last modified: 2016/05/19 08:41 by COMFILE Technology