Z80181 Zilog., Z80181 Datasheet - Page 50

• Manufacturer Part Number: Z80181
• Description: SMART ACCESS CONTROLLER (SAC)
• Manufacturer: Zilog.

Zilog
AC CHARACTERISTICS
Z180 MPU Timing
Figures 60-68 show the timing for the Z181 MPU and the referenced parameters appear in Table A.
2-50
/ROMCS
/RAMCS
Address
/RESET
/MREQ
Data In
/IORQ
/WAIT
/WR
/RD
/M1
ST
Ø
"H"
61
T1
4
2
10
6
67
3
1
17
8
9
62
66
Figure 60a. Opcode Fetch Cycle
T2
70
7
5
20
19
19
Tw
15
61
67
T3
20
14
62
66
13
18
12
S
MART
T1
70
A
CCESS
16
11
C
DS971800500
ONTROLLER
Z80181
SAC
™