参数资料
型号: ST6242B
英文描述: 8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTROM. EPROM. LCD DRIVER. EEPROM. A/D CONVERTER AND 64 PINS
中文描述: 8位微控制器(MCU)的与检察官办公室。光盘。 FASTROM。存储器。液晶显示驱动程序。 EEPROM中。的A / D转换器和64个
文件页数: 53/74页
文件大小: 733K
代理商: ST6242B
53/74
ST62T46B/E46B
POWER SUPPLY SUPERVISOR (Continued)
4.6.1 PSS Operating Mode Description
The resistive voltage divider connected to the PSS
pin provides the internal comparator with the
nxV
PSS
/13 voltage. The resistive voltage divider
connected to the V
DD
pin provides the internal
comparator with the mxV
DD
/13 voltage. The n and
m values are selected with the PSS register. It
must be observed that the n and m values must be
selected, taking into consideration the following
electrical constraints:
0.5V < nxV
PSS
/13 at detection < V
DD
-2V
0.5V < mxV
DD
/13 at detection < V
DD
-2V
we must also have:
V
DD
V
PSS
V
DD
The PIF bit is the interrupt request flag of the PSS
device. This bit follows PSS comparator output.
Figure 32. Typical application using the PSS
m
n
---
V
DD
V
IN
P
SS
V
SS
L48xx
VR01837
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