ST72324BK2 STMicroelectronics, ST72324BK2 Datasheet - Page 149

• Manufacturer Part Number: ST72324BK2
• Description: 5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72324BK2

• Hdflash Endurance: 1 kcycle at 55 °C, data retention 40 years at 85 °C
• Clock Sources: crystal/ceramic resonator oscillators, int. RC osc. and ext. clock input
• 4 Power Saving Modes: Slow, Wait, Active-halt, and Halt

ST72324Bxx
12.6
12.6.1
12.6.2
Clock and timing characteristics
Subject to general operating conditions for V
General timings
Table 93.
1. Data based on typical application software.
2. Time measured between interrupt event and interrupt vector fetch.
External clock source
Table 94.
1. Data based on design simulation and/or technology characteristics, not tested in production.
Figure 65. Typical application with an external clock source
Symbol
t
t
Symbol
t
w(OSC1H)
V
w(OSC1L)
V
t
t
c(INST)
r(OSC1)
f(OSC1)
t
OSC1H
OSC1L
v(IT)
needed to finish the current instruction execution.
I
lkg
Instruction cycle time
Interrupt reaction time t
V
V
OSC1 input pin high level voltage
OSC1 input pin low level voltage
OSC1 high or low time
OSC1 rise or fall time
OSC1 input leakage current
OSC1H
OSC1L
General timings
External clock source
External
clock source
Parameter
t
r(OSC1)
Parameter
(1)
v(IT)
(1)
t
f(OSC1)
= Δt
OSC2
OSC1
90%
c(INST)
10%
+ 10
DD
See
V
, f
SS
t
Not connected internally
(2)
w(OSC1H)
Conditions
CPU
Figure 65.
< V
f
f
CPU
CPU
Conditions
, and T
IN
< V
I
lkg
= 8 MHz
= 8 MHz
Δ
t
t
c(INST)
DD
w(OSC1L)
A
.
f
OSC
is the number of t
V
Electrical characteristics
Min
V
ST72XXX
DD
1.25
Min
250
5
SS
10
2
-1
Typ
Typ
375
3
(1)
CPU
V
1500
Max
2.75
Max
V
12
22
SS
15
±1
cycles
DD
+1
149/193
Unit
t
t
Unit
CPU
CPU
ns
µs
µA
ns
V