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参数资料
| 型号： | ST7PL35F2UA/XXXE |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20 |
| 封装： | 5 X 6 MM, ROHS COMPLIANT, QFN-20 |
| 文件页数： | 46/168页 |
| 文件大小： | 2955K |
| 代理商： | ST7PL35F2UA/XXXE |
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Obsolete
Product(s)
- Obsolete
Product(s)
ST7L34, ST7L35, ST7L38, ST7L39
14/168
FLASH PROGRAM MEMORY (cont’d)
4.4 ICC INTERFACE
ICP needs a minimum of four and up to six pins to
be connected to the programming tool. These pins
are:
– RESET: device reset
–VSS: device power supply ground
– ICCCLK: ICC output serial clock pin
– ICCDATA: ICC input serial data pin
– CLKIN/PB4: main clock input for external
source
–VDD: application board power supply (option-
al, see Note 3)
Figure 5. Typical ICC Interface
Notes:
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
not available for the application. If they are used as
inputs by the application, isolation such as a serial
resistor has to be implemented if another device
forces the signal. Refer to the Programming Tool
documentation for recommended resistor values.
2. During the ICP session, the programming tool
must control the RESET pin. This can lead to con-
flicts between the programming tool and the appli-
cation 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 appli-
cation RESET circuit in this case. When using a
classical RC network with R>1K or a reset man-
agement IC with open drain output and pull-up
resistor > 1K, no additional components are need-
ed. In all cases the user must ensure that no exter-
nal 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 Program-
ming Tools (it is used to monitor the application
power supply). Please refer to the Programming
Tool Manual.
4. Pin 9 must be connected to the PB4 pin of the
ST7 when the clock is not available in the applica-
tion or if the selected clock option is not pro-
grammed in the option byte. ST7 devices with
multi-oscillator
capability
must
have
OSC2
grounded in this case.
5. With any programming tool, while the ICP option
is disabled, the external clock must be provided on
PB4.
6. In ICC mode, the internal RC oscillator is forced
as a clock source, regardless of the selection in the
option byte.
Caution: During normal operation ICCCLK pin
must be pulled- up, internally or externally (exter-
nal pull-up of 10k mandatory in noisy environ-
ment).
This
avoids
entering
ICC
mode
unexpectedly during a reset. In the application,
even if the pin is configured as output, any reset
puts it back in input pull-up.
ICC CONNECTOR
ICCD
ATA
ICCCL
K
RE
SET
V
DD
HE10 CONNECTOR TYPE
APPLICATION
POWER SUPPLY
1
2
4
6
8
10
97
5
3
PROGRAMMING TOOL
ICC CONNECTOR
APPLICATION BOARD
ICC Cable
(See Note 3)
ST7
OPTIONAL
See Note 1
See Note 1 and caution
See Note 2
APPLICATION
RESET SOURCE
APPLICATION
I/O
(See Note 4)
(Se
e
No
te
5)
CL
KIN/PB
4
1
相关PDF资料 |
PDF描述 |
|---|---|
| ST7L35F2UA/XXXRE | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20 |
| ST7L35F2UC/XXXRE | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20 |
| ST7L39F2MC/XXXE | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| ST7L39F2UC/XXXRE | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20 |
| ST7PL34F2MC/XXXE | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
相关代理商/技术参数 |
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