ST72T331 STMICROELECTRONICS [STMicroelectronics], ST72T331 Datasheet - Page 94

• Manufacturer Part Number: ST72T331
• Description: 8-BIT MCU WITH 8 TO 16K OTP/EPROM, 256 EEPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST72E331 ST72T331
7.3 RESET CHARACTERISTICS
(T
Note:
1) These values given only as design guidelines and are not tested.
7.4 OSCILLATOR CHARACTERISTICS
(T
94/107
94
t
t
RESET
PULSE
Symbol
Symbol
A
A
=-40...+125
R
f
t
= -40°C to +125°C unless otherwise specified)
OSC
start
g
ON
m
Reset Weak Pull-up R
Pulse duration generated by watch-
dog and POR reset
Minimum pulse duration to be ap-
plied on external RESET pin
Oscillator transconductance
Crystal frequency
Osc. start up time
o
C and V
Parameter
Parameter
DD
=5V±10% unless otherwise specified.
ON
Test Conditions
V
V
V
DD
IN
IN
> V
< V
= 5V±10%
IH
IL
Conditions
Min.
2
1
10
Min
20
60
1)
Value
Typ.
Typ
120
40
1
1)
Max.
16
50
9
Max
240
80
mA/V
MHz
Unit
Unit
ms
k
ns
s