SM59D04G2
8-Bits Micro-controller
16KB+ ISP Flash & 1KB RAM embedded
Function Description
1
General Features
SM59D04G2 is an 8-bit micro-controller. All of its functions and the detailed meanings of SFR will
be given in the following sections.
1.1 Embedded Flash
The program can be loaded into the embedded 16KB Flash memory via its writer or ISP (In-System
Programming) or ICP (In-Circuit Programming) function. The high-quality Flash is suitable for
re-programming and data recording as EEPROM.
1.2 IO Pads
The IO pads are compatible to the 8052 series. P0 is open-drain in the input or output high condition,
so the external pull-up resistor is required. P1 ~ P4 are designed with internal pull-up resistors. The
IO pad structure is given below:
Fig. 1-1：IO pad structure
All the pads for P0 ~ P4 are with slew rate to reduce EMI. The other way to reduce EMI is to disable
the ALE output if unused. This is selected by its SFR. In 3.3V applications, the IO pads are 5V
tolerant except for XATL1 and XTAL2.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M031
10
Ver.C SM59D04G2 07/2009
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
