2
TCM809/810-4 11/30/99
TCM809
TCM810
3-Pin Microprocessor Reset Monitors
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (VCC to GND) ................................ +6.0V
RESET, RESET ............................ – 0.3V to (VCC + 0.3V)
Input Current, VCC.. .................................................. 20mA
Output Current, RESET, RESET ............................. 20mA
dV/dt (VCC) ....................................................... 100V/sec
Operating Temperature Range ............. – 40
°C to +125°C
Power Dissipation (TA ≤ 70°C)
3-Pin SOT-23B (derate 4mW/
°C above +70°C) 230mW
Storage Temperature Range ................ – 65
°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +260
°C
*This is a stress rating only and functional operation of the device at these
or any other conditions above those indicated in the operational sections of
the specifications is not implied. Exposure to Absolute Maximum Rating
Conditions for extended periods may affect device reliability.
PIN DESCRIPTION
Pin No.
(3-Pin SOT-23B)
Symbol
Description
1
GND
Ground
2
RESET (TCM809)
RESET output remains low while VCC is below the reset voltage threshold, and
for 240msec (140msec min.) after VCC rises above reset threshold.
2
RESET (TCM810)
RESET output remains high while VCC is below the reset voltage threshold,
and for 240msec (140msec min.) after VCC rises above reset threshold.
3VCC
Supply voltage (Typ. +3.0V to +5.0V)
Symbol Parameter
Test Conditions
Min
Typ
Max
Unit
VCC Range
TA = 0°C to +70°C
1.0
—
5.5
V
TA = – 40°C to +125°C
1.2
—
5.5
ICC
Supply Current
TCM8xxL/M/J VCC < 5.5V
—
24
60
A
TCM8xxR/S/T: VCC < 3.6V
—
17
50
VTH
Reset Threshold (Note 2)
TCM8xxL: TA = +25°C
4.56
4.63
4.70
V
TA = – 40°C to +125°C
4.50
—
4.75
TCM8xxM: TA = +25°C
4.31
4.38
4.45
TA = – 40°C to +125°C
4.25
—
4.50
TCM809J: TA = +25°C
3.93
4.00
4.06
TA = – 40°C to +125°C
3.89
—
4.10
TCM8xxT: TA = +25°C
3.04
3.08
3.11
TA = – 40°C to +125°C
3.00
—
3.15
TCM8xxS: TA = +25°C
2.89
2.93
2.96
TA = – 40°C to +125°C
2.85
—
3.00
TCM8xxR: TA = +25°C
2.59
2.63
2.66
TA = – 40°C to +125°C
2.55
—
2.70
Reset Threshold Tempco
—
30
—
ppm/
°C
VCC to Reset Delay (Note 2)
VCC = VTH to (VTH – 100mV)
—
20
—
sec
Reset Active Timeout Period
140
240
560
msec
VOL
RESET Output Voltage Low
TCM809R/S/T: VCC = VTH min, ISINK = 1.2mA
——
0.3
V
(TCM809)
TCM809L/M/J: VCC = VTH min, ISINK = 3.2mA
——
0.4
VCC > 1.0V, ISINK = 50A
——
0.3
VOH
RESET Output Voltage High
TCM809R/S/T: VCC > VTH max, ISOURCE = 500A
0.8 VCC
——
V
(TCM809)
TCM809L/M/J: VCC > VTH max, ISOURCE = 800AVCC – 1.5
——
VOL
RESET Output Voltage Low
TCM810R/S/T: VCC = VTH max, ISINK = 1.2mA
——
0.3
V
(TCM810)
TCM810L/M/J: VCC = VTH max, ISINK = 3.2mA
——
0.4
VOH
RESET Output Voltage High
1.8 < VCC < VTH min, ISOURCE = 150A
0.8 VCC
——
V
(TCM810)
NOTES:
1. Production testing done at TA = +25°C, over temperature limits guaranteed by design.
2. RESET output for TCM809, RESET Output for TCM810.
ELECTRICAL CHARACTERISTICS:
Vcc = Full Range, TA = Operating Temperature Range unless other-
wise noted. Typical values are at TA = +25°C, VCC = 5V for L/M/J, 3.3V forT/S, 3.0V for R (Note 1).