Digi SM-720, Service Manual

Page: 10 / 158

SM720 Service Manual Edition 5
8
control two DC motor.
3 RS232 Drv AX3232.
(M/B-U18)
It’s a device consists of two line driver, two receiver, and a dual change-pump circuit
with +-15kv ESD protection pin to pin.
4 Controller H8/3024F.
(CPU BD-U1)
It’s a high-performance single-chip microcomputer that integrates peripheral
functions necessary y for system configuration with an H8/300H CPU feature a 32-
bits internal architecture as its core.
5 SRAM
IS62WV51216BLL.
(CPU BD-U7 & U8)
It’s a high-performance, very low power CMOS static Random Access Memory
organized as 524,288 words by 16 bits and operates from a wide range of 2.4V to
5.5V supply voltage.
6 AM29LV320DB90EI.
(CPU BD-U9)
It’s a 32 megabit, 3.0 volt-only flash memory device, and is designed to be
programmed in-system with the standard 3.0 volt Vcc supply, and can also be
programmed in standard EPROM programmers.
7 LAN9115-MT.
(CPU BD-U10)
Is a full-featured, single chip 10/100 Ethernet controller designed for Embedded
applications where performance, flexibility, ease of integration and system cost
control are required
*Components are subject to change without notice.