参数资料
型号: MC68HC08AS20CFN
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQCC52
封装: PLASTIC, LCC-52
文件页数: 46/96页
文件大小: 3243K
代理商: MC68HC08AS20CFN
5
MOTOROLA
5-4
MC68HC05E0
MEMORY AND ADDRESSING
Figure 5-1 Minimum System with External Memory
Figure 5-2 More Complex Expanded System
ROM
or
EPROM
(e.g. 27(C)64)
RAM
(optional - e.g.
MCM60(L)64)
CS3 (PD3)
CS2 (PD2)
R/W (PD1)
CSROM
DATA
ADDRESS
CE
R/W
CE
MC68HC05E0
OE
ROM
EPROM
A15 (PD7)
A14 (PD6)
A13 (PD5)
DATA
ADDRESS
CE
MC68HC05E0
RAM
R/W
CE
P02 (PD0)
CE
MC74HC138
A2
A1
A0
CS1
OE
R/W* (PD1)
50
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