C8051F312 Silicon Laboratories Inc, C8051F312 Datasheet - Page 37
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C8051F312
Manufacturer Part Number
C8051F312
Description
IC 8051 MCU 8K FLASH 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F31xr
Specifications of C8051F312
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
29
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 21x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
336-1151
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F312
Manufacturer:
SILICON
Quantity:
850
Company:
Part Number:
C8051F312
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F312-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F312-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
–40°C to +85°C, 25 MHz System Clock unless otherwise specified.
Digital Supply Current—CPU Inactive (Idle Mode, not fetching instructions from Flash)
I
I
Note 4)
I
Note 6)
Digital Supply Current
(Stop Mode, shutdown)
Notes:
1. Given in Table 9.1 on page 110.
2. SYSCLK must be at least 32 kHz to enable debugging.
3. Based on device characterization data, not production tested.
4. Active and Inactive I
5. I
6. Idle I
DD
DD
DD
(Note 3)
Supply Sensitivity (Note 3,
Frequency Sensitivity (Note 3,
using the I
7.8 mA typical at 3.0 V and f = 25 MHz. From this, I
3.3 V and f = 25 MHz.
quency sensitivity number for that range. When using these numbers to estimate I
the estimate should be the current at 25 MHz minus the difference in current indicated by the fre-
quency sensitivity number. For example:
V
frequency sensitivity number for that range. When using these numbers to estimate Idle I
MHz, the estimate should be the current at 25 MHz minus the difference in current indicated by the
frequency sensitivity number. For example:
V
DD
DD
DD
can be estimated for frequencies < 15 MHz by multiplying the frequency of interest by the fre-
= 3.0 V; F = 20 MHz, I
= 3.0 V; F = 5 MHz, Idle I
DD
Parameter
can be estimated for frequencies < 1 MHz by multiplying the frequency of interest by the
DD
Table 3.1. Global DC Electrical Characteristics (Continued)
Supply Sensitivity. For example, if the V
DD
at voltages and frequencies other than those specified can be calculated
DD
DD
= 7.8 mA – (25 MHz – 20 MHz) x 0.21 mA/MHz = 6.75 mA.
V
V
V
V
= 4.8 mA – (25 MHz – 5 MHz) x 0.15 mA/MHz = 1.8 mA.
DD
DD
DD
DD
V
V
= 3.0 V, F < 1 MHz, T = 25
= 3.0 V, F > 1 MHz, T = 25
= 3.6 V, F < 1 MHz, T = 25
= 3.6 V, F > 1 MHz, T = 25
V
V
Oscillator not running,
DD
DD
V
DD
DD
DD
= 3.0 V, F = 25 MHz
= 3.6 V, F = 25 MHz
= 3.0 V, F = 80 kHz
= 3.0 V, F = 1 MHz
Monitor Disabled
Conditions
F = 25 MHz
F = 1 MHz
Rev. 1.7
C8051F310/1/2/3/4/5/6/7
DD
DD
= 7.8 mA + 0.67 x (3.3 V – 3.0 V) = 8 mA at
is 3.3 V instead of 3.0 V at 25 MHz: I
°
°
°
°
C
C
C
C
Min
—
—
—
—
—
—
—
—
—
—
—
< 0.1
0.20
0.21
0.15
0.28
Typ
0.19
3.8
4.8
16
44
56
DD
for > 15 MHz,
Max
4.3
5.3
—
—
—
—
—
—
—
—
—
DD
for > 1
mA/MHz
mA/MHz
mA/MHz
mA/MHz
DD
Units
%/V
%/V
mA
mA
mA
µA
µA
=
37