ST7MDTU5-EPB/US STMicroelectronics, ST7MDTU5-EPB/US Datasheet - Page 9

• Manufacturer Part Number: ST7MDTU5-EPB/US
• Description: BOARD PROGRAMMING SGL POS ST7
• Manufacturer: STMicroelectronics
• Type: MCUr

Specifications of ST7MDTU5-EPB/US

• Contents: Programmer Board
• For Use With/related Products: ST7263B
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ST7-EPB
Note:
Note:
Isolation of ICCDATA and ICCCLK pins
Isolation of the RESET pin
ICCSEL/VPP pin
When using the ST7MDTS1-EPB, the VDD_APPLI is not connected to the ST7. When
setting up your application for in-circuit programming, refer to the ICP Interface diagram in
the In-CIrcuit Programming section of the ST7SCR Datasheet, instead of the diagram
provided above.
Using the ICC protocol for in-circuit programming requires that a minimum of 4 and as many
as 6 pins of your ST7 be connected to your programming board (see
notes about these connections are provided in this section.
Table 1.
For specific ICC connection requirements for microcontroller introduced after the publication
of this document, please refer to the microcontroller datasheet.
From the moment that your ST7-EPB is plugged into the application board, the ICCDATA
and ICCCLK pins must not be used by other application devices, even when you are not
programming the ST7. If the application uses these pins as inputs, isolation such as a serial
resistor must be implemented to prevent other application devices from forcing a signal on
either of these pins. The application board must not drive current in excess of 1mA.
If the ICCDATA and ICCCLK pins are only used as outputs by the application, no signal
isolation is necessary.
For ST7 without an ICCSEL pin, during normal operation the ICCCLK pin must be pulled-up
internally or externally (10KΩ pull-up required in noisy environments). This is to avoid
entering ICC mode unintentionally during a reset.
During an ICC session, your ST7-EPB must control the ST7’s RESET pin. No external reset
can be generated by the application. This can lead to a conflict if the application reset
circuitry signal exceeds 5mA (push-pull output or pull-up resistor <1k). To avoid such
conflicts, a Shottky diode can be used to isolate the application reset circuit.
The application pull-down resistor must not be lower than 10kΩ.
ICCDATA
ICCCLK
RESET
ICCSEL/VPP
OSC1 or OSCIN
VDD
VSS
# Optional connection for ST7MDTxx-EPB, see text.
ICC connection requirements
#
ICC input serial data pin
ICC output serial clock pin
Device reset
Programming voltage
Main clock input for external
Device power supply
Device power supply (ground)
ST7 pin
UM0028 Rev 4
ICCDATA
ICCCLK
ICCRESET
ICCSEL/VPP
ICCOSC
VDD_APPLI
GND
Table 1
1 Getting Started
Connects to...
). Additional
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