ST72324J2-AUTO 데이터 시트보기 (PDF) - STMicroelectronics

부품명

상세내역

제조사

ST72324J2-AUTO

8-bit MCU for automotive, 3.8 to 5.5V operating range with 8 to 32 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI

STMicroelectronics 

ST72324xx-Auto

Flash program memory

4.4

ICC interface

ICC needs a minimum of 4 and up to 6 pins to be connected to the programming tool (see

Figure 6). These pins are:

– RESET: device reset

– VSS: device power supply ground

– ICCCLK: ICC output serial clock pin

– ICCDATA: ICC input/output serial data pin

– ICCSEL/VPP: programming voltage

– OSC1 (or OSCIN): main clock input for external source (optional)

– VDD: application board power supply (optional, see Figure 6, Note 3).

) Figure 6. Typical ICC interface

duct(s PROGRAMMING TOOL

ICC CONNECTOR

te Pro (See Note 3)

t(s) - Obsole APPLICATION

CL2

uc POWER SUPPLY

ICC Cable

APPLICATION BOARD

OPTIONAL

IN SOME CASES 9 7 5

(See Note 4)

10 8 6

31

42

ICC CONNECTOR

HE10 CONNECTOR TYPE

APPLICATION

RESET SOURCE

See Note 2

10kΩ

CL1

See Note 1

APPLICATION

I/O

rod ST7

olete P 1. If the ICCCLK or ICCDATA pins are only used as outputs in the application, no signal isolation is necessary. As soon as the

Programming Tool is plugged to the board, even if an ICC session is not in progress, the ICCCLK and ICCDATA pins are

snot available for the application. If they are used as inputs by the application, isolation such as a serial resistor has to

bimplemented in case another device forces the signal. Refer to the Programming Tool documentation for recommended

O resistor values.

2. During the ICC session, the programming tool must control the RESET pin. This can lead to conflicts between the

programming tool and the application reset circuit if it drives more than 5mA at high level (push pull output or pull-up

resistor<1K). A schottky diode can be used to isolate the application RESET circuit in this case. When using a classical RC

network with R>1K or a reset management IC with open drain output and pull-up resistor>1K, no additional components

are needed. In all cases the user must ensure that no external reset is generated by the application during the ICC session.

3. The use of Pin 7 of the ICC connector depends on the Programming Tool architecture. This pin must be connected when

using most ST Programming Tools (it is used to monitor the application power supply). Please refer to the Programming

Tool manual.

4. Pin 9 has to be connected to the OSC1 or OSCIN pin of the ST7 when the clock is not available in the application or if the

selected clock option is not programmed in the option byte. ST7 devices with multi-oscillator capability need to have OSC2

grounded in this case.

Doc ID 13841 Rev 1

25/193

Share Link: