SN8P021X/8P011X

SONiX TECHNOLOGY CO., LTD

Page 1

Preliminary

January 2000

SN8P021X/8P011X 8-bit microcontroller

1. GENERAL DESCRIPTION

he SN8P021X/8P011X is an 8-bit micro-controller utilized with CMOS technology fabrication and featured with low power

consumption and high performance by its unique electronic structure. This chip is designed with the excellent IC structure,

including the program memory up to 2K/1K-word OTP ROM, 64 bytes of the data memory, one 8-bit T0 basic timer, one 8-bit

timer/event counter, a watch dog timer, three interrupt sources (T0, TC0, INT0), 13 I/O pins and 8 levels stack buffer. Besides,

the user can choose desired oscillator configurations for the controller. There are three oscillator configurations to select for

generating system clock, including high-performing crystal, ceramic resonator or cost-saving RC.

2. FEATURES

♦ Memory configuration

♦ Three interrupt sources :

OTP ROM size : 2048 * 16 bits for SN8P021X series

Two internal interrupts : T0, TC0

OTP ROM size : 1024 * 16 bits for SN8P011X series

One external interrupt : INT0

RAM size : 64 * 8 bits.

♦ Eight levels stack buffer

♦ I/O pin configuration (Total 13 pins)

♦ An 8-bit basic timer.

One input port : 1 pin with wakeup function.

♦ An 8-bit timer/event counter.

Two Input/output ports : 12 pins.

♦ A watchdog timer.

♦ Acceptable oscillator type :

♦

♦

♦

♦ 56 powerful instructions

Crystal or ceramic resonator up to 8MHz

All of instructions are 1 word with 1 or 2 cycles'

execution.

RC oscillator up to 2 MHz

Execution time : 1 cycle uses 4 clocks of oscillator.

All ROM area JMP instruction.

♦

♦

♦

♦ Package :

All ROM area Subroutine CALL instruction.

PDIP : 16, 18, 20

All ROM area lookup table function. (MOVC

instruction)

SOP : 16, 18, 20

3. PIN ASSIGNMENT

P1.2

1 U 20 P1.1

P1.2

1 U 18

P1.1

P1.3

2

19 P1.0

P1.1

1 U 16 P1.0

P1.3

2

17

P1.0

INT0/P0.0

3

18 XIN

INT0/P0.0

2

15 XIN

INT0/P0.0

3

16

XIN

VPP/RST

4

17 XOUT

VPP/RST

3

14 XOUT

VPP/RST

4

15

XOUT

VSS

5

16 VDD

VSS

4

13 VDD

VSS

5

14

VDD

VSS

6

15 VDD

P2.0

5

12 P2.7

P2.0

6

13

P2.7

P2.0

7

14 P2.7

P2.1

6

11 P2.6

P2.1

7

12

P2.6

P2.1

8

13 P2.6

P2.2

7

10 P2.5

P2.2

8

11

P2.5

P2.2

9

12 P2.5

P2.3

8

9

P2.4

P2.3

9

10

P2.4

P2.3 10

11 P2.4

SN8P0211P

SN8P0212P

SN8P0213P

SN8P0211S

SN8P0212S

SN8P0213S

SN8P0111P

SN8P0112P

SN8P0113P

SN8P0111S

SN8P0112S

SN8P0113S

T