首页 > 器件类别 >

AME8500BEEVDD24

UProcessor Supervisory

厂商名称:安茂微电子(AME)

下载文档
文档预览
AME, Inc.
AME8500 / 8501
µ
Processor Supervisory
n
General Description
The AME8500 family allows the user to customize the
CPU reset function without any external components.
The user has a large choice of reset voltage thresholds,
reset time intervals, and output driver configurations, all
of which are preset at the factory. Each wafer is trimmed
to the customer's specifications.
These circuits monitor the power supply voltage of
µP
based systems. When the power supply voltage drops
below the voltage threshold a reset is asserted immedi-
ately (within an interval T
D1
). The reset remains asserted
after the supply voltage rises above the voltage threshold
for a time interval, T
D2
. The reset output may be either
active high (RESET) or active low (RESETB). The reset
output may be configured as either push/pull or open
drain. The state of the reset output is guaranteed to be
correct for supply voltages greater than 1V.
The AME8501 includes all the above functionality plus
an overtemperature shutdown function. When the ambi-
ent temperature exceeds 80
o
C a reset is asserted and
remains asserted until the temperature falls below 60
o
C.
Space saving SOT23 packages and micropower qui-
escent current (<3.0µA) make this family a natural for
portable battery powered equipment.
n
Typical Operating Circuit
2
V
CC
*
V
CC
AME8500
RESET / RESET
GND
Processor
RESET
Input
GND
3
Note: * External pull-up resistor is required if open-
drain output is used. 10 kΩ is recommended.
n
Block Diagram
AME8500 with Push-Pull RESET
V
DD
R1
I1
P1
Delay
n
Features
l
Small packages: SOT-23, SOT-89
l
11 voltage threshold options
l
Tight voltage threshold tolerance ---±1.50%
l
5 reset interval options
l
4 output configuration options
l
Wide temperature range -------- -40
o
C to 85
o
C
l
Low temperature coefficient --- 100ppm/
o
C
(max)
l
Low quiescent current < 3.0µA
l
Thermal shutdown option (AME8501)
V
DD
GND
RESET
N1
R2
V
REF
AME8500 with Push-Pull RESET
n
Applications
l
l
l
l
l
l
Portable electronics
Power supplies
Computer peripherals
Data acquisition systems
Applications using CPUs
Consumer electronics
R1
I1
P1
Delay
RESET
N1
R2
GND
V
REF
1
AME, Inc.
AME8500 / 8501
µ
Processor Supervisory
n
Block Diagram (contd.)
AME8500 with Open-Drain RESET
V
DD
R1
I1
V
DD
R1
Delay
AME8500 with Open-Drain RESET
I1
RESET
N1
GND
R2
V
REF
Delay
RESET
N1
R2
GND
V
REF
n
Pin Configuration
SOT-23
Top View
3
SOT-23
Top View
AME8500AEET
AME8501AEET
1. GND
2. Reset/ResetB
3. V
DD
3
AME8500
AME8500
AME8500BEET
AME8501BEET
1. Reset/ResetB
2. GND
3. V
DD
1
2
1
2
SOT-23
Top View
3
SOT-23-L
Top View
AME8500CEET
AME8501CEET
1. Reset/ResetB
2. V
DD
3. GND
3
AME8500
AME8500
AME8500AEET
AME8501AEET
1. GND
2. Reset/ResetB
3. V
DD
1
2
1
2
2
AME, Inc.
AME8500 / 8501
µ
Processor Supervisory
n
Pin Configuration (contd.)
SOT-23-L
Top View
3
SOT-23-L
Top View
AME8500BEET
AME8501BEET
1. Reset/ResetB
2. GND
3. V
DD
3
AME8500CEET
AME8501CEET
1. Reset/ResetB
2. V
DD
3. GND
AME8500
AME8500
1
2
1
2
SOT-89
Top View
AME8500AEFT
AME8501AEFT
1. GND
2. V
DD
3. Reset/ResetB
SOT-89
Top View
AME8500BEFT
AME8501BEFT
1. Reset/ResetB
2. V
DD
3. GND
AME8500
AME8500
1
2
3
1
2
3
SOT-89
Top View
AME8500CEFT
AME8501CEFT
1. V
DD
2. GND
3. Reset/ResetB
5
SOT-25
Top View
4
AME8500
AME8500
AME8500BEEV
AME8501BEEV
1. Reset/ResetB
2. V
DD
3. GND
4. N/C
5. N/C
1
2
3
1
2
3
n
Pin Description
Pin Name
GND
RESETB/RESET
Ground
This pin can be ordered as RESET or RESETB. RESET is active high.
RESETB is active low. It is also available with an open drain or pushpull
output.
Positive power supply. A reset is asserted after this voltage drops below
a predetermined level. After V
DD
rises above that level the reset output
remains asserted until the end of the reset timeout period.
Pin Description
V
DD
3
AME, Inc.
AME8500 / 8501
µ
Processor Supervisory
n
Ordering Information
AME8500 x x x x x x x x
AME8501 x x x x x x x x
Special Feature
VDD Threshold Voltage (V
TH
)
Reset Time (T
D2NOM
)
Output Driver Option
Number of Pins
Package Type
Operating Temperature Range
Pin Configuration
Output Driver
Number
Option
Package
of
Characteristic
Type
Pins
of RESET or
RESETB pin
T: 3
V: 5
Pin
Configuration
Operating
Temperature
Range
Reset
Time
(T
D2NOM
)
VDD
Threshold
Voltage (V
TH
)
Special
Feature
A
(SOT-23)
B
(SOT-23)
C
(SOT-23)
A
(SOT-89)
B
(SOT-89)
C
(SOT-89)
1. GND
E: -40
O
C to 85
O
C E: SOT-2X
2. Reset/
F: SOT-89
ResetB
3. VDD
1. Reset/
ResetB
2. GND
3. VDD
1. Reset/
ResetB
2. VDD
3. GND
1. GND
2. VDD
3. Reset/
ResetB
1. Reset/
ResetB
2. VDD
3. GND
1. VDD
2. GND
3. Reset/
ResetB
A: RESETB /PP A: 1.5 ms
B: RESETB /OD D: 30 ms
C: RESET/ PP E: 150 ms
D: RESET/ OD F: 210 ms
(RESET = Active High)
(RESETB = Active Low)
(PP = Push pull out)
(OD = Open drain output
polarity)
15: VTH=
16: VTH=
18: VTH=
19: VTH=
20: VTH=
21: VTH=
22: VTH=
23: VTH=
24: VTH=
26: VTH=
27: VTH=
28: VTH=
29: VTH=
31: VTH=
40: VTH=
42: VTH=
44: VTH=
46: VTH=
1.5V L: Low profile
1.6V Y: Lead free &
1.8V
Low profile
1.9V Z: Lead free
2.0V
2.1V
2.2V
2.32V
2.4V
2.63V
2.7V
2.8V
2.93V
3.08V
4.0V
4.2V
4.38V
4.63V
4
AME, Inc.
AME8500 / 8501
µ
Processor Supervisory
n
Ordering Information
Part Number
AME8500AEETAA21
AME8500AEETAD20
AME8500AEETAE20
AME8500AEETAE21
AME8500AEETAE26
AME8500AEETAE26L
AME8500AEETAE29
AME8500AEETAE31
AME8500AEETAE46
AME8500AEETAF15
AME8500AEETAF16
AME8500AEETAF21
AME8500AEETAF23
AME8500AEETAF26
AME8500AEETAF27
AME8500AEETAF29
AME8500AEETAF31
AME8500AEETAF40
AME8500AEETAF44
AME8500AEETAF46
AME8500AEETBF31
AME8500AEETBF46
AME8500AEETCA21
AME8500AEETCA27
AME8500AEETCA46
AME8500AEETCD20
AME8500AEETCF21
AME8500AEETCF29
AME8500AEETCF31
Marking
ASVww
ALXww
AUAww
AVGww
ASJww
ASJww
ALYww
AUBww
ATSww
ATDww
ATEww
ASKww
ATTww
AMPww
ATRww
AMOww
ASAww
ASBww
ARNww
ARKww
AUTww
AUUww
ASWww
AVBww
AVCww
ALZww
ATYww
ALVww
ASUww
V
TH
Voltage
2.10V
2.00V
2.00V
2.10V
2.63V
2.63V
2.93V
3.08V
4.63V
1.50V
1.60V
2.10V
2.32V
2.63V
2.70V
2.93V
3.08V
4.00V
4.38V
4.63V
3.08V
4.63V
2.10V
2.70V
4.63V
2.00V
2.10V
2.93V
3.08V
Package
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
Operating Temp. Range
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
5
查看更多>
【NUCLEO-L552ZE测评】拓展板成品
原理图纠正:NTC那里的R11阻值是10K,1%。NTC我用的是之前立创搞活动优惠的0603封装NCP18XH103F03RB,买回来我都还没用过,不知道效果如何。板子回来了,有个小问题,就是IPS屏幕的排线绕不了底层去焊接的,因为中间的方形孔忘记画好了。顶层的也可以用,不过我还是先用模块的排针连接。没想到我的房间连个WS2812都没了,刚刚下单,等它回来再补焊.成品如下图:上板的效果如图:简陋了点,能用就行,因为我讨厌死排线了。【NUCLEO-...
hzz592788 测评中心专版
【晒心得】eZ430-Chronos手表到了,秀一下下
经过下单子一个星期后没有动静,不得不问了一下客服,这才有了动态,又过了三天,终于到了国内,一天北京到西安,可是正好赶上中秋放假,又等了三天,可是一个电话又打来,联邦快递不送临潼,于是只能转EMS,今天终于到了,试用了一下,两个所有的功能都可以。在此不得不吐槽一下TI和BM的奸情,有个心率功能,结果收到后一看,还得再买一个心率监视计,感觉还不如直接留出一个无线的接口给心率计算了。但是总的来说,买到这个的感觉是——赚到了。现在是准备两个做通信,但是要是搭硬件的话,接收还不知道用什么...
平行电 微控制器 MCU
【树莓派4B测评】+ 实时状态监控网站服务器搭建
树莓派的强大性能让树莓派能运行linux系统,而linux系统可以提供软硬件的实时状态信息给使用者查看。包括CPU、内存、缓存、SWAP分区、负载、进程数、IP等一系列相关信息,每一项都有相应的指令来查看。但是逐个查看太繁琐了,最好是查询后统一在一个页面上显示。在github上就有这样一个开源的项目,叫PiDashboard。这是一个基于PHP的WEBUI。要使用PiDashboard需要有WE...
sylar^z 测评中心专版
串口通讯基于stm32的代码实现
串口通讯是一种很常用的通讯方式,用的电缆数量少、操作简单。下面来看一下串口通讯的定义、原理及基于stm32的代码实现(带注释便于理解)。具体内容如下:一、通信接口处理器与外部设备通信的两种方式:并行通信:-传输原理:数据各个位同时传输。-优点:速度快-缺点:占用引脚资源多串行通信:-传输原理:数据按位顺序传输。-优点:占用引脚资源少-缺点:速度相对较慢串行通信,按照数据传送方向,分为:单工:数据传输只支持数据在一个方向上传输半双工:允许数据在两个方向上...
Aguilera 微控制器 MCU
PROTEL 仿真求助
仿真时出现以下错误!不知道怎么设置!请各位帮助!U1Error:Pinorderdata(PINS=1:)notinREADONLYfield4.Pinssortedbypin-name.U1Error:ParttypemustbeenteredinREADONLYfield1:type=parttype(spiceprefix)U1Error:NetlistdatamustbeenteredinREAD...
laose321 PCB设计
【2024 DigiKey 创意大赛】睡眠环境监测屏
一、作品简介BME680传感器集成了多个功能,可以测量气体,湿度,压力,温度,结合ESP32-S3-LCD-EV-BOARD开发板,非常适合制作成一个摆在床头的电子监视器。通过读取BME680中的数据,可以获取到常规的温度,湿度,气压数据。结合这些数据,可以计算一个舒适指数,通过观察舒适指数可以检测卧室的睡眠环境好坏。二、系统框图系统分为两部分,第一部分是BME680模块,用来获取环境信息;第二部分是ESP32-S3-LCD-EV-BOARD开发板,用来显示各种信息,以...
林太太 DigiKey得捷技术专区