User`s manual

S3F84A5_UM_REV1.10 S3F84A5 FLASH MCU
20-1
20 S3F84A5 FLASH MCU
OVERVIEW
The S3F84A5 single-chip CMOS microcontroller is the Flash MCU. It has an on-chip Flash ROM instead of
masked ROM. The Flash ROM is accessed by serial data format.
VSS
(Vpp)TEST
RxD/P0.0
TxD/P0.1
nRESET/P0.2
AV
REF
INT0/ADC0/P1.0
INT1/ADC1/P1.1
ADC2/P1.2
ADC3/P1.3
ADC4/P1.4
ADC5/P1.5
P1.6/ADC6
P1.7/ADC7
S3F84A5
(Top View)
28-SOP
28-SSOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VDD
P3.2/INT4 (SCLK)
P3.1/INT3 (SDAT)
P3.0/INT2
P2.7/T0OUT/PWM3A
P2.6/T0CAP/PWM3B
P2.5/TBOUT
P2.4/T0CK/PWM2A
P2.3/PWM2B
P2.2/TACAP
P2.1/TACK/PWM1A
P2.0/TAOUT/PWM1B
28
27
26
25
24
23
22
21
20
19
18
17
XOUT/P3.3
X
IN/P3.4
Figure 20-1. Pin Assignment (28-pin SOP, 28-pin SSOP)