- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372195 > SP800MET Datamate J-Tek DIL Male Horizontal SMT Connector, selective gold + tin/lead, with jackscrews, 3+3-way PDF資料下載
參數(shù)資料
| 型號(hào)： | SP800MET |
| 英文描述： | Datamate J-Tek DIL Male Horizontal SMT Connector, selective gold + tin/lead, with jackscrews, 3+3-way |
| 中文描述： | 低功耗微處理器監(jiān)控與電池開關(guān)過 |
| 文件頁(yè)數(shù)： | 11/24頁(yè) |
| 文件大?。?/td> | 196K |
| 代理商： | SP800MET |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)當(dāng)前第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)
Date: 5/25/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2004 Sipex Corporation
11
10k
and the output saturation voltage is below
0.4V while sinking 40
μ
A. When using a 10k
external pull-down resistor, the high state for
the RESET output with Vcc = 4.75V is 4.5V
typical. For battery voltages less than or equal
to 2V connected to V
BATT
, RESET and RESET
remains valid for V
CC
from 0V to 5.5V.
RESET and RESET are asserted when V
falls
below the reset threshold and remain asserted
for the Reset Timeout Period (200ms nominal)
after V
rises above the reset threshold voltage
on power-up. Refer to
Figure 19
. The devices'
battery-switchover comparator does not affect
reset assertion. However, both reset outputs are
asserted in battery-backup mode since V
must
be below the reset threshold to enter this mode.
Figure 18. External Pull-down Resistor Ensures
RESET is Valid with V
CC
Down to Ground.
TO
μ
P RESET
10k
15
Corporation
RESET
Figure 19. Reset and Chip-Enable Timing
4) Watchdog function
Monitors
μ
P activity
where the watchdog output goes to a logic
LOW state if the watchdog input is not
toggled for greater than the timeout period.
5) Internal switch
Switches over from V
to V
if the V
CC
falls below the reset
threshold.
RESET and RESET Outputs
The
SP691A/693A/800L/800M
devices'
RESET and RESET outputs ensure that the
μ
P
powers up in a known state, and prevents
code-execution errors during power-down or
brownout conditions.
The RESET output is active low, and typically
sinks 3.2mA at 0.1V saturation voltage in its
active state. When deasserted, RESET sources
1.6mA at typically V
OUT
– 0.5V. RESET output
is open drain, active high, and typically sinks
3.2mA with a saturation voltage of 0.1V. When
no backup battery is used, RESET output is
guaranteed to be valid down to V
CC
= 1V, and
an external 10k
pull-down resistor on RESET
ensures that RESET will be valid with V
CC
down to GND as shown on
Figure 18
. As V
CC
goes below 1V, the gate drive to the RESET
output switch reduces accordingly, increasing
the R
(ON) and the saturation voltage. The
10k
pull-down resistor ensures the parallel
combination of switch plus resistor is around
Vcc
CE
IN
CE
OUT
RESET
12
μ
100
μ
s
100
μ
s
RESET
THRESHOLD
RESET
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP8027 | High Speed, Constant Bandwidth Differential APC Amplifier |
| SP8027CG | High Speed, Constant Bandwidth Differential APC Amplifier |
| SP8034A | 250 V/us APC Amplifier with Integrated Photodiode and Gain Adjust Capability |
| SP8036 | APC Amplifier with Integrated Photodiode and Gain Adjust Capability |
| SP8036DG4 | APC Amplifier with Integrated Photodiode and Gain Adjust Capability |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP800MET/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP800S-104 | 制造商:The Bergquist Company 功能描述: |
| SP800TAC-43 | 制造商:The Bergquist Company 功能描述:BG401756 |
| SP800TAC-54 | 制造商:The Bergquist Company 功能描述: |
| SP80186U WAF | 制造商:Intel 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。