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C8051F040-GQR Datasheet(PDF) 37 Page - Silicon Laboratories

Part # C8051F040-GQR
Description  Mixed Signal ISP Flash MCU Family
Download  328 Pages
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Manufacturer  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
Logo SILABS - Silicon Laboratories

C8051F040-GQR Datasheet(HTML) 37 Page - Silicon Laboratories

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C8051F040/1/2/3/4/5/6/7
Rev. 1.5
37
4.
Pinout and Package Definitions
Table 4.1. Pin Definitions
Name
Pin Numbers
Type
Description
F040/2/4/6 F041/3/5/7
VDD
37, 64, 90
24, 41, 57
Digital Supply Voltage. Must be tied to +2.7 to +3.6 V.
DGND
38, 63, 89
25, 40, 56
Digital Ground. Must be tied to Ground.
AV+
8, 11, 14
3, 6
Analog Supply Voltage. Must be tied to +2.7 to +3.6 V.
AGND
9, 10, 13
4, 5
Analog Ground. Must be tied to Ground.
TMS
1
58
D In
JTAG Test Mode Select with internal pullup.
TCK
2
59
D In
JTAG Test Clock with internal pullup.
TDI
3
60
D In
JTAG Test Data Input with internal pullup. TDI is latched
on the rising edge of TCK.
TDO
4
61
D Out JTAG Test Data Output with internal pullup. Data is
shifted out on TDO on the falling edge of TCK. TDO out-
put is a tri-state driver.
/RST
5
62
D I/O
Device Reset. Open-drain output of internal VDD monitor.
Is driven low when VDD is < 2.7 V and MONEN is high. An
external source can initiate a system reset by driving this
pin low.
XTAL1
26
17
A In
Crystal Input. This pin is the return for the internal oscilla-
tor circuit for a crystal or ceramic resonator. For a preci-
sion internal clock, connect a crystal or ceramic resonator
from XTAL1 to XTAL2. If overdriven by an external CMOS
clock, this becomes the system clock.
XTAL2
27
18
A Out Crystal Output. This pin is the excitation driver for a crystal
or ceramic resonator.
MONEN
28
19
D In
VDD Monitor Enable. When tied high, this pin enables the
internal VDD monitor, which forces a system reset when
VDD is < 2.7 V. When tied low, the internal VDD monitor is
disabled.
In most applications, MONEN should be connected
directly to VDD.
VREF
12
7
A I/O
Bandgap Voltage Reference Output (all devices).
DAC Voltage Reference Input (C8051F041/3 only).
VREFA
8
A In
ADC0 (C8051F041/3/5/7) and ADC2 (C8051F041/3 only)
Voltage Reference Input.
VREF0
16
A In
ADC0 Voltage Reference Input.
VREF2
17
A In
ADC2 Voltage Reference Input (C8051F040/2 only).
VREF
15
A In
DAC Voltage Reference Input (C8051F040/2 only).
AIN0.0
18
9
A In
ADC0 Input Channel 0 (See ADC0 Specification for com-
plete description).


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