TMP86xy92DMG Toshiba, TMP86xy92DMG Datasheet - Page 77

• Manufacturer Part Number: TMP86xy92DMG
• Manufacturer: Toshiba

Specifications of TMP86xy92DMG

• Package: SSOP30
• Rom Types (m=mask,p=otp,f=flash): M/F
• Rom Size: 16
• Ram Size: 512
• Driver Led: 8
• Driver Lcd: -
• Spi/sio Channels: 1
• Uart/sio Channels: 2
• I2c/sio Channels: 1
• High-speed Serial Output: -
• Adc 8-bit Channels: -
• Adc 10-bit Channels: 6
• Da Converter Channels: -
• Timer Counter 18-bit Channel: -
• Timer Counter 16-bit Channel: 1
• Timer Counter 8-bit Channel: 2
• Motor Channels: -
• Watchdog Timer: Y
• Dual Clock: Y
• Clock Gear: -
• Number Of I/o Ports: 24
• Power Supply (v): 4 to 5.5

7. Voltage detection circuit (VLTD)
7.1
VDD
of a low-voltage condition.
two comparators and control registers.
detection voltage select circuit selects a voltage according to the specified detection voltage (VDxLVL) (x = 1 or 2),
and the comparator compares it with the reference voltage. When the comparator detects the selected voltage, a voltage
detection reset signal or an INTVLTD interrupt request signal can be generated.
by software. In the former case, a voltage detection reset signal is generated when the supply voltage (VDD) becomes
lower than the detection voltage (VDxLVL). In the latter case, an INTVLTD interrupt request signal is generated when
the supply voltage (VDD) falls to the detection voltage level.
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 detection voltage select circuits,
The supply voltage (VDD) is divided by the ladder resistor and input to the detection voltage select circuit. The
Whether to generate a voltage detection reset signal or an INTVLTD interrupt request signal can be programmed
Note:The voltage detecting circuit may not operate properly depending on transitions in supply voltage (VDD). When
Note:Since the comparators used for voltage detection do not have a hysteresis structure, INTVLTD interrupt request
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.
signals may be generated frequently if the supply voltage (VDD) is close to the detection voltage (VDxLVL).
INTVLTD interrupt request signals may be generated not only when the supply voltage falls to the detection
voltage but also when it rises to the detection voltage.
VDCR1
Reference voltage
Figure 7-1 Voltage detection circuit diagram
−
+
−
+
Internal bus
VDCR2
Page 63
F/F
F/F
Interrupt request
signal
Voltage detection 1 reset signal
INTVLTD interrupt request signal
Voltage detection 2 reset signal
TMP86FH92DMG