st10f273m STMicroelectronics, st10f273m Datasheet - Page 172

• Manufacturer Part Number: st10f273m
• Description: 16-bit Mcu With 512 Kbyte Flash Memory And 36 Kbyte Ram
• Manufacturer: STMicroelectronics

Electrical characteristics
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Table 74.
1. Partially tested, guaranteed by design characterization
Figure 60. External bus arbitration (releasing the bus)
1. The ST10F273M will complete the currently running bus cycle before granting bus access.
2. This is the first possibility for BREQ to become active.
3. The CS outputs will be resistive high (pull-up) after t
Symbol
t
t
t
t
64
65
66
67
CC CSx release
CC CSx drive
CC Other signals release
CC Other signals drive
CLKOUT
HOLD
HLDA
BREQ
CSx
(P6.x)
Others
External bus arbitration timings (continued)
Parameter
(1)
t
61
(1)
(1)
(1)
64
Min
f
.
-4
-4
TCL = 12.5ns
CPU
–
–
t
66
t
63
= 40 MHz
t
t
62
64
Max
20
15
20
15
(3)
(2)
1/2 TCL = 1 to 40 MHz
Variable CPU clock
Min
-4
-4
–
–
Max
ST10F273M
20
15
20
15
Unit
ns
ns
ns
ns