st10f272z2 STMicroelectronics, st10f272z2 Datasheet - Page 171

• Manufacturer Part Number: st10f272z2
• Description: 16-bit Mcu With 256 Kbyte Flash Memory And 20 Kbyte Ram
• Manufacturer: STMicroelectronics

ST10F272Z2
Figure 56. External memory cycle: multiplexed bus, with/without r/w delay, extended ALE,
Address/data
bus (P0)
CLKOUT
ALE
A23-A16
(A15-A8)
BHE
Read cycle
RdCSx
Write cycle
WrCSx
Address/Data
Bus (P0)
r/w CS
t
6
t
6
t
5
Address
Address
t
t
t
43
43
17
t
7
t
42
t
Address
42
t
16
t
45
t
45
t
47
t
t
t
49
44
t
44
49
t
46
t
t
48
48
t
50
Data in
Data out
t
Electrical characteristics
18
t
t
54
t
56
19
t
25
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