str755fv1/ STMicroelectronics, str755fv1/ Datasheet - Page 44

• Manufacturer Part Number: str755fv1/
• Description: Arm7tdmi-s?? 32-bit Mcu With Flash, Smi, 3 Std 16-bit Timers, Pwm Timer, Fast 10-bit Adc, I2c, Uart, Ssp, Usb And Can
• Manufacturer: STMicroelectronics

Electrical parameters
5.3.5
44/84
Clock and timing characteristics
XT1 external clock source
Subject to general operating conditions for V
Table 20.
1. Data based on typical application software.
2. Time measured between interrupt event and interrupt vector fetch. ∆t
3. Data based on design simulation and/or technology characteristics, not tested in production.
DuCy
Symbol
C
t
t
w(XT1H)
V
w(XT1L)
V
t
t
IN(XT1)
needed to finish the current instruction execution.
r(XT1)
f(XT1)
f
XT1H
XT1
XT1L
I
L
(XT1)
External clock source
frequency
XT1 input pin high level
voltage
XT1 input pin low level
voltage
XT1 high or low time
XT1 rise or fall time
XTx Input leakage current
XT1 input capacitance
Duty cycle
XT1 external clock source
Parameter
(3)
(3)
(3)
see
V
V
Conditions
SS
DD_IO
STR750Fxx STR751Fxx STR752Fxx STR755Fxx
Figure 20
≤ V
DD_IO
IN
≤
(1) (2)
, and T
0.7xV
A
.
c(INST)
Min
V
45
6
SS
DD_IO
is the number of t
Typ
4
5
0.3xV
V
Max
CPU
DD_IO
60
20
±1
55
DD_IO
cycles
MHz
Unit
µA
pF
ns
%
V