PRELIMINARY INFORMATION
3-PIN µP RESET MONITORS
TCM809
TCM810
Power Dissipation (TA ≤ 70°C)
ABSOLUTE MAXIMUM RATINGS*
SOT-23B-3 (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.
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/µS
Operating Temperature Range ............... – 40°C to +85°C
ELECTRICAL CHARACTERISTICS: Vcc = 5V, TA = Operating Temperature Range unless otherwise noted.
Symbol Parameter
Test Conditions
Min
Typ
Max
Unit
VCC Range
TA = 0°C to +70°C
TA = – 40°C to +85°C
1.0
1.2
—
—
5.5
5.5
V
ICC
Supply Current
TCM8xxL/M: VCC < 5.5V
TCM8xxR/S/T: VCC < 3.6V
—
—
24
17
60
50
µA
VTH
Reset Threshold
(Note 2)
TCM8xxL: TA = +25°C
TA = – 40°C to +85°C
TCM8xxM: TA = +25°C
TA = – 40°C to +85°C
TCM8xxT: TA = +25°C
TA = – 40°C to +85°C
TCM8xxS: TA = +25°C
TA = – 40°C to +85°C
TCM8xxR: TA = +25°C
TA = – 40°C to +85°C
4.56
4.50
4.31
4.25
3.04
3.00
2.89
2.85
2.59
2.55
4.63
—
4.38
—
3.08
—
2.93
—
4.70
4.75
4.45
4.50
3.11
3.15
2.96
3.00
2.66
2.70
V
2.63
—
Reset Threshold Tempco
VCC to Reset Delay
—
30
—
ppm/°C
(Note 2)
VCC = VTH to (VTH – 100mV)
—
20
—
µsec
msec
V
Reset Active Timeout Period
140
240
560
VOL
RESET Output Voltage Low
(TCM809)
TCM809R/S/T: VCC = VTH min, ISINK = 1.2mA
TCM809L/M: VCC = VTH min, ISINK = 3.2mA
VCC > 1.0V, ISINK = 50µA
—
—
—
—
—
—
0.3
0.4
0.3
VOH
VOL
RESET Output Voltage High
(TCM809)
TCM809R/S/T: VCC > VTH max, ISOURCE = 500µA
TCM809L/M: VCC > VTH max, ISOURCE = 800µA VCC – 1.5
0.8 VCC
—
—
—
—
V
V
V
RESET Output Voltage Low
(TCM810)
T
T
CM810R/S/T: VCC = VTH max, ISINK = 1.2mA
CM810L/M: VCC = VTH max, ISINK = 3.2mA
—
—
—
—
0.3
0.4
VOH
RESET Output Voltage High
(TCM810)
1.8 < VCC < VTH min, ISOURCE = 150µA
0.8 VCC
—
—
NOTES:
1. Production testing done at TA = +25°C, over temperature limits guaranteed by design.
2. RESET output for TCM809, RESET Output for TCM810.
PIN DESCRIPTION
Pin No.
(SOT-23B-3)
Symbol
Description
1
2
GND
Ground
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)
VCC
RESET output remains high while VCC is below the reset voltage threshold,
and for 240msec (140msec min.) after VCC rises above reset threshold.
3
Supply voltage (Typ. +3.0V to +5.0V)
5-16
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
