ST72C334J2B6 STMicroelectronics, ST72C334J2B6 Datasheet - Page 116
ST72C334J2B6
Manufacturer Part Number
ST72C334J2B6
Description
8-bit Microcontrollers - MCU Flash 8K SPI/SCI
Manufacturer
STMicroelectronics
Datasheet
1.ST72C334J2B6.pdf
(153 pages)
Specifications of ST72C334J2B6
Product Category
8-bit Microcontrollers - MCU
Core
ST7
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Program Memory Size
8 KB
Data Ram Size
384 B
On-chip Adc
Yes
Operating Supply Voltage
3.2 V to 5.5 V
Package / Case
SDIP-42
Mounting Style
Through Hole
A/d Bit Size
8 bit
A/d Channels Available
8
Data Rom Size
256 B
Interface Type
SCI, SPI
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
32
Number Of Timers
4 bit
Program Memory Type
Flash
Factory Pack Quantity
13
Supply Voltage - Max
5 V
Supply Voltage - Min
3.2 V
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72C334J2B6
Manufacturer:
ST
Quantity:
507
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ST72334J/N, ST72314J/N, ST72124J
16.5 CLOCK AND TIMING CHARACTERISTICS
Subject to general operating conditions for V
16.5.1 General Timings
16.5.2 External Clock Source
Figure 67. Typical Application with an External Clock Source
Notes:
1. Data based on typical application software.
2. Time measured between interrupt event and interrupt vector fetch. t
the current instruction execution.
3. Data based on design simulation and/or technology characteristics, not tested in production.
116/153
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)
3)
2)
3)
t
f(OSC1)
OSC2
OSC1
90%
f
f
see
V
DD
CPU
CPU
SS
10%
, f
Figure 67
=8MHz
=8MHz
V
OSC
IN
Conditions
Conditions
, and T
V
DD
t
Not connected internally
w(OSC1H)
A
.
c(INST)
I
is the number of t
L
t
w(OSC1L)
1.25
0.7xV
Min
250
10
2
Min
V
15
SS
f
DD
OSC
Typ
ST72XXX
375
Typ
3
CPU
1)
cycles needed to finish
0.3xV
1500
Max
2.75
Max
12
22
V
15
±1
DD
DD
Unit
Unit
t
t
CPU
CPU
ns
ns
V
s
A
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