Data Sheet

IDC7 Bluetooth Module
Model: IDC747
Page: 10 Copyright IOT747 Ref: IDC747-DTS-V003
IOT747, 122 Ross Street, Cambridge, CB1 3BU, United Kingdom
Check www.iot747.com for updates. Email: [e-mail] Back to TOC
IDC747 Module
Product Information Data Sheet
Ref: IDC747-DTS-V003
Latest Update: July 20, 2021
122 Ross Street, CB13BU
Cambridge, United Kingdom
www.iot747.com
GPIOs and UART
The module is controlled by GPIOs. This can be configured. If GPIO control is not used,
these GPIOs should be left floating. The UART by default does not use RTS/CTS flow
control. If the users do not expect to use it, these lines should be left floating.
Digital Pin States on RESET or after Power Up
The following table shows the Digital Pin States on RESET or after power up.
Pin Name / Group
I/O Type
State after PowerUp/RESET
USB_DP
Digital bi-directional
N/A
USB_DN
Digital bi-directional
N/A
UART_RX
Digital bi-directional with PU
Strong PU
UART_TX
Digital bi-directional with PU
Weak PU
UART_CTS
Digital bi-directional with PD
Weak PD
UART_RTS
Digital bi-directional with PU
Weak PU
PCM_IN
Digital bi-directional with PD
Weak PD
PCM_OUT
Digital bi-directional with PD
Weak PD
PCM_SYNC
Digital bi-directional with PD
Weak PD
PCM_CLK
Digital bi-directional with PD
Weak PD
RST#
Digital input with PU
Strong PU
PIO_X
Digital bi-directional with PD
Weak PD
PD = Pull Down, PU = Pull Up
Input and Tri-state Currents
Min
Typ
Max
Unit
Strong pull-up
-150
-40
-10
μA
Strong pull-down
10
40
150
μA
Weak pull-up
-5
-1.0
-0.33
μA
Weak pull-down
0.33
1.0
5.0
μA