z89138 ZiLOG Semiconductor, z89138 Datasheet - Page 16

• Manufacturer Part Number: z89138
• Description: Voice Processing Controllers
• Manufacturer: ZiLOG Semiconductor

Z89138/Z89139
Voice Processing Controllers
AC CHARACTERISTICS
External I/O or Memory Read and Write Timing Diagram
16
Port 0, /DM
(Read)
(Write)
Port 1
Port1
R//W
/DS
/DS
/AS
4
Figure 7. External I/O or Memory Read/Write Timing
12
19
1
A7 - A0
A7 - A0
2
17
P R E L I M I N A R Y
5
16
14
3
8
D7 - D0 OUT
6
7
D7 - D0 IN
18
11
15
13
10
9
DS97TAD0201
Zilog