STM6321(2004) Просмотр технического описания (PDF) - STMicroelectronics
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STM6321 Datasheet PDF : 21 Pages
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STM6321/6322/6821/6822/6823/6824/6825
Sym
Alter-
native
Description
Test Condition(1)
Min Typ Max Unit
Reset Thresholds
STM6xxxL
25°C
4.561 4.630 4.699 V
–40 to 85°C 4.514
4.746 V
STM6xxxM
25°C
4.314 4.390 4.446 V
–40 to 85°C 4.270
4.490 V
VRST(5)
Reset Threshold
STM6xxxT
STM6xxxS
25°C
3.040 3.080 3.110 V
–40 to 85°C 3.000
3.150 V
25°C
2.890 2.930 2.960 V
–40 to 85°C 2.857
3.000 V
STM6xxxR
25°C
2.590 2.630 2.660 V
–40 to 85°C 2.564
2.696 V
STM6xxxZ(6)
25°C
2.280 2.320 2.350 V
–40 to 85°C 2.250
2.380 V
Reset Threshold
Hysteresis
L/M versions
T/S/R/Z versions
10
mV
5
mV
VCC to RST Delay
(VRST – VCC = 100mV,
VCC falling at 1mV/µs)
20
µs
trec
Reset Pulse Width
140 200 280 ms
Reset Threshold
Temperature Coefficient
40
ppm/
°C
Push-button Reset Input
tMLMH
tMR
MR Pulse Width
1
µs
tMLRL tMRD MR to RST Output Delay
500
ns
MR Glitch Immunity
100
ns
MR Pull-up Resistor
35
52
75
kΩ
Watchdog Timer
tWD
Watchdog Timeout
Period
1.12 1.60 2.24 s
WDI Pulse Width
50
ns
Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 4.5V to 5.5V for “L/M” versions; VCC = 2.7V to 3.6V for “T/S/R”
versions; and VCC = 2.1V to 2.75V for “Z” version (except where noted).
2. VCC (min) = 1.0V for TA = 0°C to +85°C.
3. WDI input is designed to be driven by a three-state output device. To float WDI, the “high-impedance mode” of the output device
must have a maximum leakage current of 10µA and a maximum output capacitance of 200pF. The output device must also be able
to source and sink at least 200µA when active.
4. WDI is internally serviced within the watchdog period if WDI is left unconnected.
5. The leakage current measured on the RST pin is tested with the reset asserted (output high impedance).
6. Contact local sales office for availability.
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