ST7265XEVALMS STMicroelectronics, ST7265XEVALMS Datasheet - Page 132

• Manufacturer Part Number: ST7265XEVALMS
• Manufacturer: STMicroelectronics

Specifications of ST7265XEVALMS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

ST7265x
13.5 CLOCK AND TIMING CHARACTERISTICS
Subject to general operating conditions for V
13.5.1 General Timings
13.5.2 External Clock Source
Figure 73. Typical Application with an External Clock Source
Notes:
1. Time measured between interrupt event and interrupt vector fetch. ∆t
the current instruction execution.
2. Data based on design simulation and/or technology characteristics, not tested in production.
132/163
t
t
Symbol
Symbol
w(OSC1H)
V
w(OSC1L)
V
t
t
t
r(OSC1)
f(OSC1)
c(INST)
OSC1H
t
OSC1L
v(IT)
I
L
V
V
Instruction cycle time
Interrupt reaction time
t
OSC1 input pin high level voltage
OSC1 input pin low level voltage
OSC1 high or low time
OSC1 rise or fall time
OSCx Input leakage current
OSC1H
OSC1L
v(IT)
EXTERNAL
CLOCK SOURCE
= ∆t
c(INST)
Parameter
Parameter
+ 10
t
r(OSC1)
2)
1)
2)
t
f(OSC1)
OSC2
OSC1
90%
f
f
V
DD
CPU
CPU
SS
10%
, f
≤V
=8MHz
=8MHz
OSC
IN
Conditions
Conditions
≤V
, and T
DD
t
Not connected internally
w(OSC1H)
A
.
c(INST)
I
is the number of t
L
t
0.7xV
w(OSC1L)
1.25
Min
250
10
2
Min
V
15
SS
f
DD
OSC
ST72XXX
Typ
500
4
Typ
CPU
cycles needed to finish
0.3xV
1500
Max
2.75
Max
12
22
V
±1
15
DD
DD
Unit
Unit
t
t
CPU
CPU
ns
µs
µA
ns
V