Small Form Factor
Copyright 2005 by Silicon Laboratories
5.5.2005
UART
8 kB
FLASH
256 Byte
SRAM
POR
SFR Bus
8
0
5
1
C
o
r
e
Reset
RST/C2CK
External
Oscillator
Circuit
Debug HW
Brown-
Out
Analog/Digital
Power
P
0
D
r
v
1 kB
SRAM
XTAL1
XTAL2
P0.0/VREF
P0.1
P0.2/XTAL1
P0.3/XTAL2
P0.4/TX
P0.5/RX
P0.6/CNVST
P0.7
SPI
VDD
GND
C
R
O
S
S
B
A
R
P
1
D
r
v
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
Port 0
Latch
SMBus
Timer
0,1,2,3 /
RTC
Port 1
Latch
2%
Internal
Oscillator
System Clock
P
2
D
r
v
P
3
D
r
v
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P3.0/C2D
CP1
+
-
CP0
+
-
C2D
Port 2
Latch
Port 3
Latch
PCA/
WDT
C8051F315
25 MIPS, 8 kB Flash, 28-Pin Mixed-Signal MCU
Analog Peripherals
Two Comparators
-
Programmable hysteresis and response time
-
Configurable to generate interrupts or reset
-
Low current (0.4 A)
POR/Brown-out Detector
On-Chip Debug
-
On-chip debug circuitry facilitates full speed, non-intrusive in-system
debug (no emulator required)
-
Provides breakpoints, single stepping
-
Inspect/modify memory and registers
-
Superior performance to emulation systems using ICE-chips, target
pods, and sockets
Supply Voltage: 2.7 to 3.6 V
-
Typical Operating Current: 7 mA at 25 MHz
15 A at 32 kHz
-
Typical Stop Mode Current: <0.1 A
Temperature Range: 40 to +85 C
High-Speed 8051 C Core
-
Pipelined instruction architecture; executes 70% of instructions in 1 or 2
system clocks
-
Up to 25 MIPS throughput with 25 MHz system clock
-
Expanded interrupt handler
Memory
-
1280 bytes internal data RAM (256 + 1 k)
-
8 kB Flash; in-system programmable in 512-byte sectors (512 bytes are
reserved)
Digital Peripherals
-
25 port I/O; all are 5 V tolerant
-
Hardware SMBusTM (I2CTM compatible), SPITM, and UART serial ports
available concurrently
-
Programmable 16-bit counter/timer array with five capture/compare
modules, WDT
-
4 general-purpose 16-bit counter/timers
-
Realtime clock mode using timer or PCA
Clock Sources
-
Internal oscillator: 24.5 MHz, 2% accuracy supports UART operation
-
External oscillator: Crystal, RC, C, or Clock (1 or 2 pin modes)
-
Can switch between clock sources on-the-fly
Package
-
28-pin QFN (lead-free package)
Ordering Part Number
-
C8051F315-GM
Small Form Factor
Copyright 2005 by Silicon Laboratories
5.5.2005
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders
C8051F315
25 MIPS, 8 kB Flash, 28-Pin Mixed-Signal MCU
Selected Electrical Specifications
(T
A
= 40 to +85 C, V
DD
= 2.7 V unless otherwise specified)
PARAMETER CONDITIONS
MIN
TYP
MAX
UNITS
GLOBAL CHARACTERISTICS
Supply
Voltage
2.7 3.6
V
Supply Current
Clock = 25 MHz
Clock = 1 MHz
Clock = 32 kHz; V
DD
Monitor Disabled
7
0.5
15
mA
mA
A
Supply Current
(shutdown)
Oscillator off; V
DD
Monitor Enabled
Oscillator off; V
DD
Monitor Disabled
10
<0.1
A
A
Clock Frequency Range
DC
25
MHz
INTERNAL OSCILLATOR
Frequency
24.0
24.5
25.0
MHz
COMPARATORS
Mode0 Response Time
(CP+) (CP-) = 100 mV
0.10
s
Mode0 Supply Current
7.6
A
Mode1 Response Time
(CP+) (CP-) = 100 mV
0.18
s
Mode1 Supply Current
3.2
A
Mode2 Response Time
(CP+) (CP-) = 100 mV
0.32
s
Mode2 Supply Current
1.3
A
Mode3 Response Time
(CP+) (CP-) = 100 mV
1.0
s
Mode3 Supply Current
0.40
A
Package Information
1
E
D
A2
A
A1
e
A3
E2
R
e
L
Bottom View
Side View
2
3
4
5
6
7
8
9
10
12
13
14
21
20
19
17
16
15
28
27
26
24
23
22
E2
25
2
D2
11
18
D2
2
6 x
e
6 x e
DETAIL 1
DETAIL 1
AA
BB
CC
DD
b
MM
0.80
0.90
1.00
A
MIN
TYP
MAX
0
0.02
0.05
A1
0
0.65
1.00
A2
0.25
A3
0.18
0.23
0.30
b
5.00
D
2.90
3.15
3.35
D2
0.435
AA
0.435
BB
5.00
E
2.90
3.15
3.35
E2
0.5
e
0.18
CC
0.45
0.55
0.65
L
28
N
0.09
R
7
ND
7
NE
0.18
DD
C8051F310DK Development Kit
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