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S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 1 OVERVIEW OF IH COOKER (IHC)
1-2
1.2 KEY FEATURES OF S3F84B8
With no more discrete ICs like LM339 (comparator IC) in previous IHC solutions, S3F84B8 successfully integrates
four comparators, one OPA, and one IH-PWM to control power directly. After configuration, all the four
comparators can cooperate with the IH-PWM automatically, which makes the time-sensitive control possible.
Figure2 shows the pin assignment in S3F84B8.
S3F84B8
20-DIP/
20-SOP
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
V
DD
P2.7/ADC7/(SCL)
P2.6/ADC6/(SDA)
P2.5/ADC5/CMP3_N
P2.4/ADC4/CMP2_N
P2.3/ADC3(OPA_O)
P2.2/ADC2/OPA_N
P2.1/ADC1/OPA_P
P2.0/ADC0/TDOUT
P1.2/CMP1_N
V
SS
INT0/X
IN
/P0.0
INT1/X
OUT
/P0.1
V
PP
/nRESET/P0.2
BUZ/INT2/P0.3
PWM/INT3/P0.4
INT4/P0.5
TAOUT/INT5/P0.6
TACK/CMP0_P/P1.0
TACAP/CMP0_N/P1.1
Figure 1-2 Pin Assignment in S3F84B8
The key features of S3F84B8 include:
8K Full Flash ROM and 272B SRAM
Four Comparators
One OPA
10-bit IH-PWM x 1 (can co-operate with the four Comparators)
10-bit ADC x 8
8-bit Basic Timer (can be used as Watch Dog Timer)
8-bit TimerA
16-bit Timer0 (can be used as two 8-bit Timers C/D)
External Interrupts X 6
Supports configurable LVR (1.9/2.3/3.6/3.9V)
Supports configurable internal RC (0.5M/8MHz RC @5V with maximum 3% accuracy)
Supports 18 IOs (maximum) when using internal LVR and internal RC
Comparator0 has two inputs. Its output can trigger the PWM to start a new cycle immediately or after some
programmable delay. This helps in the synchronization control. The delay can adjust the IGBT to turn on at
minimum collector voltage, thereby reducing the heat and protecting the transistor.