ST10F272M-4Q3 STMICROELECTRONICS [STMicroelectronics], ST10F272M-4Q3 Datasheet - Page 154

• Manufacturer Part Number: ST10F272M-4Q3
• Description: 16-bit MCU with 256 Kbyte Flash memory and 20 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
Figure 51. External memory cycle: Multiplexed bus, with/without read/write delay, extended ALE
154/176
CLKOUT
ALE
CSx
A23-A16
(A15-A8)
BHE
Read cycle
Address/Data
Bus (P0)
RD
Write cycle
WR
WRL
WRH
Address/Data
Bus (P0)
t
t
6
6
t
t
5
6
Address
t
38
Address
t
9
t
t
9
17
t
17
t
7
t
t
8
8
Address
t
39
t
16
t
t
11
11
t
13
t
t
t
t
10
15
13
10
t
t
14
12
t
12
t
22
Data out
Data in
t
18
t
t
27
23
t
t
27
19
t
25
t
40
ST10F272M