C8051T631-GM Silicon Laboratories Inc, C8051T631-GM Datasheet - Page 57
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C8051T631-GM
Manufacturer Part Number
C8051T631-GM
Description
IC MCU 8KB 20PIN QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051T63xr
Specifications of C8051T631-GM
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
17
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-QFN
Processor Series
C8051T6x
Core
8051
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
UART, SPI, SMBus
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
17
Number Of Timers
4 x 16-bit
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051T630DK
Minimum Operating Temperature
- 40 C
For Use With
336-1464 - KIT DEV FOR C8051T630 FAMILY
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Other names
336-1459-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051T631-GM
Manufacturer:
Silicon
Quantity:
91
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11. Comparator0
C8051T630/1/2/3/4/5 devices include an on-chip programmable voltage comparator, Comparator0, shown
in Figure 11.1.
The Comparator offers programmable response time and hysteresis, an analog input multiplexer, and two
outputs that are optionally available at the Port pins: a synchronous “latched” output (CP0), or an asyn-
chronous “raw” output (CP0A). The asynchronous CP0A signal is available even when the system clock is
not active. This allows the Comparator to operate and generate an output with the device in STOP mode.
When assigned to a Port pin, the Comparator output may be configured as open drain or push-pull (see
Section “20.4. Port I/O Initialization” on page 116). Comparator0 may also be used as a reset source (see
Section “18.5. Comparator0 Reset” on page 99).
The Comparator0 inputs are selected by the comparator input multiplexer, as detailed in Section
“11.1. Comparator Multiplexer” on page 61.
The Comparator output can be polled in software, used as an interrupt source, and/or routed to a Port pin.
When routed to a Port pin, the Comparator output is available asynchronous or synchronous to the system
clock; the asynchronous output is available even in STOP mode (with no system clock active). When dis-
abled, the Comparator output (if assigned to a Port I/O pin via the Crossbar) defaults to the logic low state,
and the power supply to the comparator is turned off. See Section “20.3. Priority Crossbar Decoder” on
page 114 for details on configuring Comparator outputs via the digital Crossbar. Comparator inputs can be
externally driven from –0.25 V to (V
trical specifications are given in Section “5. Electrical Characteristics” on page 23.
Comparator
Input Mux
Figure 11.1. Comparator0 Functional Block Diagram
CPT0MD
CP0 +
CP0 -
DD
+
-
) + 0.25 V without damage or upset. The complete Comparator elec-
CPT0CN
VDD
GND
CP0RIF
CP0FIF
Decision
Reset
Tree
Rev. 1.0
(SYNCHRONIZER)
D
SET
CLR
Q
Q
0
1
0
1
D
SET
CLR
Q
Q
C8051T630/1/2/3/4/5
CP0EN
Crossbar
0
1
EA
0
1
CP0A
Interrupt
CP0
CP0
57
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