ST7LITE49K2 STMicroelectronics, ST7LITE49K2 Datasheet - Page 198
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ST7LITE49K2
Manufacturer Part Number
ST7LITE49K2
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST7LITE49K2.pdf
(245 pages)
Specifications of ST7LITE49K2
8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance
10K write/erase cycles guaranteed Data retention
256 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention
20 years at 55 °C.
Clock Sources
Internal trimmable 8 MHz RC oscillator, auto-wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
Five Power Saving Modes
Halt, Active-halt, Auto-wakeup from Halt, Wait and Slow
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Electrical characteristics
Table 77.
1. See
2. Tested in production at 3.3 V only
3. Tested in production at 3.3 V only
4. Garranted by characterization - Not tested in production.
198/245
Symbol
ACC
t
su(RC)
f
RC
RC
Section 7.1.1: Internal RC oscillator
Internal RC oscillator
Accuracy of Internal
RC oscillator setup
RC oscillator with
RCCR=RCCR1
Internal RC oscillator calibrated at 3.3 V
The ST7 internal clock can be supplied by an internal RC oscillator (selectable by option
byte).
Internal RC oscillator characteristics (3.3 V calibration)
Figure 86. Frequency vs voltage at four different ambient temperatures (RC at 5 V)
Parameter
frequency
time
1)
8 .200
8 .160
8 .120
8 .080
8 .040
8 .000
7 .960
7 .920
7 .880
7 .840
7 .800
T
T
T
A
A
A
= 0 to +125 °C, V
= 0 to +85 °C, V
T
= -40 to 0 °C, V
A
= 25 °C, V
T
RCCR = FF (reset value),
T
A
T
A
= 25 °C, V
A
T
RCCR = RCCR1
A
= 25 °C, V
= 25 °C, V
=25 °C,V
Conditions
DD
DD
DD
DD
VDD (V)
= 3.0 to 3.6 V
DD
DD
DD
DD
= 3.3 V
= 3.0 to 3.6 V
= 3.0 to 3.6 V
=3.3 V
= 3.0 to 3.6 V
= 3.3 V
= 3.3 V
(1)
,
(2)
(3)
(3)
(4)
(3)
7.84
Min
-2.5
-2
-3
-4
RC 5V@- 40 °C
RC 5V@25 °C
RC 5V@85 °C
RC 5V@12 5 °C
Typ
4
4.3
8
1
(3)
ST7LITE49K2
Max
8.16
2.5
2
4
6
MHz
Unit
μs
%
%
%
%
%
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