- 您现在的位置：买卖IC网 > PDF目录16088 > MAX803SEXR+T (Maxim Integrated Products)IC MPU/RESET CIRC SC70-3 PDF资料下载
参数资料
| 型号： | MAX803SEXR+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC MPU/RESET CIRC SC70-3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.93V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-70，SOT-323 |
| 供应商设备封装： | SC-70-3 |
| 包装： | 标准包装 |
| 产品目录页面： | 1413 (CN2011-ZH PDF) |
| 其它名称： | MAX803SEXR+TDKR |
MAX803/MAX809/MAX810
3-Pin Microprocessor Reset Circuits
Selector Guide
PART/SUFFIX
MAX803L
MAX803M
MAX803T
MAX803S
MAX803R
MAX803Z
MAX809L
MAX809M
MAX809J
MAX809T
MAX809S
MAX809R
MAX809Z
MAX810L
MAX810M
MAX810T
MAX810S
MAX810R
MAX810Z
RESET THRESHOLD (V)
4.63
4.38
3.08
2.93
2.63
2.32
4.63
4.38
4.00
3.08
2.93
2.63
2.32
4.63
4.38
3.08
2.93
2.63
2.32
OUTPUT TYPE
OPEN-DRAIN RESET
OPEN-DRAIN RESET
OPEN-DRAIN RESET
OPEN-DRAIN RESET
OPEN-DRAIN RESET
OPEN-DRAIN RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
PUSH-PULL RESET
SOT
?
?
?
?
?
?
AAAA
ABAA
CWAA
ACAA
ADAA
AFAA
?
AGAA
AHAA
AJAA
AKAA
ALAA
?
TOP MARK
SC70
AAZ
ABA
ABB
ABC
ABD
ABE
AAN
AAO
?
AAP
AAQ
AAR
AAS
AAT
AAU
AAV
AAX
AAW
AAY
Detailed Description
A microprocessor’s (μP’s) reset input starts the μP in a
known state. The MAX803/MAX809/MAX810 assert
reset to prevent code-execution errors during power-
up, power-down, or brownout conditions. They assert a
reset signal whenever the V CC supply voltage declines
below a preset threshold, keeping it asserted for at
least 140ms after V CC has risen above the reset thresh-
old. The MAX803 uses an open-drain output, and the
MAX809/MAX810 have a push-pull output stage.
Connect a pullup resistor on the MAX803’s RESET out-
put to any supply between 0 and 6V.
Pin Description
Applications Information
Negative-Going V CC Transients
In addition to issuing a reset to the μP during power-up,
power-down, and brownout conditions, the MAX803/
MAX809/MAX810 are relatively immune to short-duration
negative-going V CC transients (glitches).
Figure 1 shows typical transient duration vs. reset com-
parator overdrive, for which the MAX803/MAX809/
MAX810 do not generate a reset pulse. The graph was
generated using a negative-going pulse applied to V CC ,
starting 0.5V above the actual reset threshold and end-
ing below it by the magnitude indicated (reset compara-
tor overdrive). The graph indicates the maximum pulse
PIN
1
2
3
NAME
GND
RESET
(MAX803/
MAX809)
RESET
(MAX810)
V CC
FUNCTION
Ground
RESET Output remains low while V CC
is below the reset threshold, and for at
least 140ms after V CC rises above the
reset threshold.
RESET Output remains high while V CC
is below the reset threshold, and for at
least 140ms after V CC rises above the
reset threshold.
Supply Voltage (+5V, +3.3V, +3.0V, or
+2.5V)
width a negative-going V CC transient can have without
causing a reset pulse. As the magnitude of the transient
increases (goes farther below the reset threshold), the
maximum allowable pulse width decreases. Typically, for
the MAX8__L and MAX8__M, a V CC transient that goes
100mV below the reset threshold and lasts 20μs or less
will not cause a reset pulse. A 0.1μF bypass capacitor
mounted as close as possible to the V CC pin provides
additional transient immunity.
Ensuring a Valid Reset Output
Down to V CC = 0V
When V CC falls below 1V, the MAX809 RESET output
no longer sinks current—it becomes an open circuit.
Maxim Integrated
5
相关PDF资料 |
PDF描述 |
|---|---|
| MAX803TEXR+T | IC RESET CIRC MPU SC70-3 |
| MAX803MEXR+T | IC MPU/RESET CIRC SC70-3 |
| M3AGK-3418R | IDC CABLE - MSC34K/MC34M/MCS34K |
| M3AEK-3418R | IDC CABLE - MSC34K/MC34M/MCE34K |
| M3DFK-2060K | IDC CABLE - MKR20K/MC20F/MCF20K |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX803SEXR-T10 | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX803SEXR-TG05 | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX803SQ120T1G | 功能描述:监控电路 ANA 1.20V MC RESET RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX803SQ263T1G | 功能描述:监控电路 ANA 2.63V MCROPROC RESET RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX803SQ293D1T1G | 功能描述:监控电路 ANA 2.93V MC RESET RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。