TMP86C993XB Toshiba, TMP86C993XB Datasheet - Page 77

• Manufacturer Part Number: TMP86C993XB
• Description: EMULATION CHIP FOR TMP86F SSOP
• Manufacturer: Toshiba

Specifications of TMP86C993XB

• Accessory Type: Adapter
• For Use With/related Products: TMP86F SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7. Voltage detection circuit (VLTD)
7.1
VDD
of a low-voltage condition.
two comparators and control registers.
threshold voltage (VDxLVL) (x = 1, 2) is selected through the VDxLVL bits of the Voltage Detect Control Register
1 (VDCR1). The selected threshold voltage is used to generate the input voltage into the comparator, which is then
compared with the reference voltage. When the supply voltage (VDD) falls below the threshold voltage (VDxLVL),
the voltage detecting circuit generates an INTVLTD interrupt or a voltage detect x reset signal.
Configuration
The voltage detecting circuit monitors the supply voltage level and generates an interrupt or reset upon detection
The voltage detecting circuit is comprised of a reference voltage generator, two threshold voltage select circuits,
The supply voltage (VDD) is divided by a resistor ladder and is input into each threshold voltage select circuit. The
Whether to generate an INTVLTD interrupt or a voltage detect x reset signal can be programmed by software.
Note:The voltage detecting circuit may not operate properly depending on transitions in supply voltage (VDD). When
designing your application system, careful consideration must be given to ensure proper operation of the voltage
detecting circuit by referring to the device's electrical characteristics.
2
2
VDCR1
Figure 7-1 Voltage detection circuit diagram
Reference
voltage
−
+
VDCR2
Page 63
−
+
F/F
F/F
Interrupt request
signal
TMP86FH92DMG
Voltage detection 1
reset signal
INTVLTD
Voltage detection 2
reset signal