SyncMOS Technologies International, Inc.
SM89T16R1
8-Bits Micro-controller
With 64KB Flash ROM & 1KB RAM & Two UART & RTC & ADC & PWM embedded
Block Diagram
RxD
(3)
T2EX
INT5
INT4
INT3
INT2
TxD
(3)
T2
PWM0
PWM1
TxD1
RxD1
(1) (1)
(1) (1)
(1)
(1)
(1) (1) (1) (1)
Xtal1
Xtal2
EA
CPU
ALE
PSEN
RD
(3)
WR
(3)
UART
Int-RAM
256x8
UART1
FLASH
64Kx8
Ext-RAM
1024x8
PWM
Timer2
Expand
Interrupt/
Wake Up
C51
CORE
iBUS
Timer0
Timer1
INT /
PDWU
RTC
Parallel I/O ports & Ext. Bus
Port0
Port1
Port2
Port3
Port4
ADC
(3)
(3)
(3)
(3)
(4) (4)
(2) (2) (2) (2)
X32OUT
X32IN
T0
T1
INT0
ADC3
ADC2
ADC1
ADC0
INT1
P0
P4
P1
P2
P3
Notes:
Specifications subject to change without notice contact your sales representatives for the most recent information.
RES
(1): Alternate function of P1
(2): Alternate function of P2
(3): Alternate function of P3
(4): Alternate function of ALE, PSEN
3
Ver 2.1 SM89T16R1 08/2006