C8051F987-GU Silicon Laboratories Inc, C8051F987-GU Datasheet - Page 103
C8051F987-GU
Manufacturer Part Number
C8051F987-GU
Description
IC MCU 8BIT 8KB FLASH 24QSOP
Manufacturer
Silicon Laboratories Inc
Series
C8051F9xxr
Specifications of C8051F987-GU
Program Memory Type
FLASH
Program Memory Size
8KB (8K x 8)
Package / Case
24-QSOP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
17
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F9x
Core
8051
Data Ram Size
512 B
Interface Type
I2C, SMBus, Enhanced UART, Enhanced SPI
Maximum Clock Frequency
7 KHz
Number Of Programmable I/os
17
Number Of Timers
4
Operating Supply Voltage
2.4 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F996DK
Minimum Operating Temperature
- 40 C
On-chip Adc
1 Analog Comparator
On-chip Dac
10 bit, 4 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1955-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F987-GU
Manufacturer:
Silicon
Quantity:
76
- Current page: 103 of 322
- Download datasheet (3Mb)
8.11. CS0 Conversion Accumulator
CS0 can be configured to accumulate multiple conversions on an input channel. The number of samples to
be accumulated is configured using the CS0ACU2:0 bits (CS0CF2:0). The accumulator can accumulate 1,
4, 8, 16, 32, or 64 samples. After the defined number of samples have been accumulated, the result is
divided by either 1, 4, 8, 16, 32, or 64 (depending on the CS0ACU[2:0] setting) and copied to the
CS0DH:CS0DL SFRs.
Note: M = Accumulator setting (1x, 4x, 8x, 16x, 32x, 64x).
N
N
Y
Y
N
N
Y
Y
conversions com-
conversions com-
CS0 Conversion
CS0INT Interrupt
CS0INT Interrupt
CS0INT Interrupt
CS0INT Interrupt
conversion com-
conversion com-
serviced after M
serviced after M
serviced after 1
serviced after 1
Complete
Behavior
Interrupt
pletes
pletes
plete
plete
Table 8.1. Operation with Auto-scan and Accumulate
CS0DH:CS0DL is greater than
CS0DH:CS0DL (post accumu-
late and divide) is greater than
CS0DH:CS0DL is greater than
CS0DH:CS0DL (post accumu-
late and divide) is greater than
Interrupt serviced after M con-
Interrupt serviced after M con-
CS0THH:CS0THL; Auto-Scan
Interrupt serviced after 1 con-
CS0 Greater Than Interrupt
version completes if value in
versions complete if value in
version completes if value in
versions complete if value in
Interrupt serviced after con-
Auto-Scan stopped
CS0THH:CS0THL;
CS0THH:CS0THL
CS0THH:CS0THL
Behavior
stopped
Rev. 1.0
C8051F99x-C8051F98x
If greater-than comparator detects conver-
unchanged; otherwise, CS0MX updates to
If greater-than comparator detects conver-
unchanged; otherwise, CS0MX updates to
the next channel (CS0MX + 1) and wraps
the next channel (CS0MX + 1) and wraps
back to CS0SS after passing CS0SE.
back to CS0SS after passing CS0SE.
CS0THH:CS0THL, CS0MX is left
CS0THH:CS0THL, CS0MX is left
sion value is greater than
sion value is greater than
CS0MX unchanged.
CS0MX unchanged.
CS0MX Behavior
103
Related parts for C8051F987-GU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
SMD/C/SINGLE-ENDED OUTPUT SILICON OSCILLATOR
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A N/A/SI4010 AES KEYFOB DEMO WITH LCD RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A N/A/SI4010 SIMPLIFIED KEY FOB DEMO WITH LED RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A/-40 TO 85 OC/EZLINK MODULE; F930/4432 HIGH BAND (REV E/B1)
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
EZLink Module; F930/4432 Low Band (rev e/B1)
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I/4460 10 DBM RADIO TEST CARD 434 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I/4461 14 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I/4463 20 DBM RFSWITCH RADIO TEST CARD 460 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I/4463 20 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I/4463 27 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I/4463 SKYWORKS 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
N/A N/A/-40 TO 85 OC/4463 RFMD 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I/4463 20 DBM RADIO TEST CARD 169 MHZ
Manufacturer:
Silicon Laboratories Inc