參數(shù)資料
型號(hào)： ST72121J2
元件分類： 8位微控制器
英文描述： 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述： 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁(yè)數(shù)： 85/93頁(yè)
文件大?。?/td> 915K
代理商： ST72121J2
85/93
ST72E121 ST72T121
7.4 RESET CHARACTERISTICS
(T
A
=-40...+125
o
C and V
DD
=5V±10% unless otherwise specified.
Note:
1)
These values given only as design guidelines and are not tested.
7.5 OSCILLATOR CHARACTERISTICS
(T
A
= -40°C to +125°C unless otherwise specified)
7.6 PERIPHERAL CHARACTERISTICS
Notes:
1. The safe reset cannot be guaranted by the LVD when fosc is greater than 8MHz.
2. Based on characterisation results, not tested.
Symbol
Parameter
Conditions
Min
Typ
1)
Max
Unit
R
ON
Reset Weak Pull-up R
ON
V
IN
> V
IH
V
IN
< V
IL
20
60
40
120
80
240
k
t
RESET
Pulse duration generated by watch-
dog and POR reset
Minimum pulse duration to be ap-
plied on external RESET pin
1
μ
s
t
PULSE
10
1)
ns
Symbol
Parameter
Test Conditions
Value
Typ.
Unit
Min.
2
1
Max.
9
16
50
g
m
f
OSC
t
start
Oscillator transconductance
Crystal frequency
Osc. start up time
mA/V
MHz
ms
V
DD
= 5V±10%
Low Voltage Detection Reset Electrical Specifications (Option)
Parameter
LVD Reset Trigger, V
DD
rising edge
LVD Reset Trigger, V
DD
falling edge
LVD Reset Trigger, hysteresis
2)
Symbol
V
LVDUP
V
LVDDOWN
V
LVDHYS
Conditions
Min.
3.6
2
3.35
Typ.
3.85
3.6
250
Max.
4.1
3.85
Unit
V
V
mV
f
OSC
= 8 MHz max
1)
.
85
相關(guān)PDF資料
PDF描述
ST72121J4 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
ST72171 8-BIT MCU WITH 8K FLASH. ADC. WDG. SPI. SCI. TIMERS SPGAS (SOFTWARE PROGRAMMABLE GAIN AMPLIFIERS). OP-AMP
ST733C04LFL0 Fuse Holder; Fuse Size/Group:Micro; Mounting Type:PC Board; Body Material:Thermoplastic; Contact Material:Copper Alloy; Contact Plating:Tin; Current Rating:5A; Leaded Process Compatible:Yes; Terminal Type:Push-On
ST733C04LFM0 Fuse Holder; Leaded Process Compatible:Yes; Mounting Type:Panel Mount RoHS Compliant: Yes
ST733C08LFL0 Fuse Holder; Leaded Process Compatible:Yes; Mounting Type:Panel Mount RoHS Compliant: Yes
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72121J4 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MICROCONTROLLER (MCU) WITH 8 TO 16 K ROM/OTP/EPROM. 384 TO 512 BYTES RAM. WDG. SCI. SPI & 2 TIMERS - SDIP42. TQFP44
ST72124J 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
ST72124J2 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
ST72124J2B 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
ST72124J2B1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
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