HMS87C1304A Datasheet, PDF (3/70 Pages) Hynix Semiconductor – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

HYUNDAI MicroElectronics
2. BLOCK DIAGRAM
HMS87C1304A/HMS87C1302A
RESET
Xin
Xout
V_DD
V_SS
Power
Supply
PSW
ALU
Accumulator
Stack Pointer
Data
Memory
System controller
System
Clock Controller
Timing generator
8-bit Basic
Interval
Timer
Interrupt C ontroller
Clock Generator
y _Watch-dog
r ^Timer
8-bit
A/D
Converter
8-bit
Timer/
Counter
High
Speed
PWM
Buzzer
Driver
ina _RA
lim _{RA0 / EC0}
eRA1 / AN1
RA2 / AN2
rRA3 / AN3
RA4 / AN4
P ^{RA5 / AN5}
RB
RB0 / AN0 / Avref
RB1 / BUZ
RB2 / INT0
RB3 / INT1
RB4 / CMP0 / PWM0
RC
RC0
RC1
RA6 / AN6
RA7 / AN7
PC
Program
Memory
Data Table
Instruction
Decoder
RD
RD0
RD1
RD2
RD3
Jan. 2001
Preliminary
3