参数资料
型号: ST6240BQ6/XXX
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, PQFP80
封装: PLASTIC, QFP-80
文件页数: 48/73页
文件大小: 1963K
代理商: ST6240BQ6/XXX
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
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ST62T40B/E40B
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
nxVPSS/13 voltage. The resistive voltage divider
connected to the VDD pin provides the internal
comparator with the mxVDD/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 < nxVPSS/13 at detection < VDD -2V
0.5V < mxVDD/13 at detection < VDD -2V
we must also have:
VDD ≤ VPSS ≤ VDD
The PIF bit is the interrupt request flag of the PSS
device. This bit follows PSS comparator output.
Figure 33. Typical application using the PSS
m
n
----
VDD
VIN
PSS
VSS
L48xx
VR01837
52
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