ST7LITE49K2 STMicroelectronics, ST7LITE49K2 Datasheet - Page 197
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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ST7LITE49K2
13.3.5
Internal RC oscillator
To improve clock stability and frequency accuracy, it is recommended to place a decoupling
capacitor, typically 100 nF, between the V
device
Internal RC oscillator calibrated at 5.0 V
The ST7 internal clock can be supplied by an internal RC oscillator (selectable by option
byte).
Table 76.
1. See
2. Tested in production at 5.0 V only
3. Garranted by characterization - Not tested in production.
4. Data based on a differential IDD measurement in run mode (f
5. Not tested in production
Symbol
ACC
I
t
f
DD(RC)
su(RC)
G(RC)
f
configuration and internal RC oscillator clock source configuration
RC
RC
Section 7.1.1: Internal RC oscillator
Internal RC oscillator
Accuracy of internal
RC oscillator setup
RC supply current
RC oscillator with
RCCR=RCCR0
Internal RC oscillator characteristics (5.0 V calibration)
RC trimming
Parameter
granularity
frequency
time
1)
T
A
= 25 °C, V
RCCR = FF (reset value),
T
T
T
T
T
A
V
V
V
A
A
A
A
RCCR=RCCR0
T
DD
DD
DD
= 25 °C, V
= 25 °C, V
= 25 °C, V
= 25 °C, V
T
T
= 25 °C, V
A
A
A
f
f
= 0 to +125 °C,
CPU
CPU
Conditions
= 0 to +85 °C,
= 4.5 to 5.5 V
= 4.5 to 5.5 V
= 4.5 to 5.5 V
= -40 to 0 °C,
DD
V
V
DD
DD
DD
= 4 MHz
= 8 MHz
and V
= 5 V
= 5 V
= 4.5 to 5.5 V
DD
DD
DD
DD
DD
SS
= 5 V
= 5 V
= 5 V
= 5 V
= 5 V
(1)
CPU
(2)
(2)
(3)
,
pins as close as possible to the ST7
= 8 MHz) between external clock source
(2)
7.84
Min
-2.5
-2
-3
-4
Electrical characteristics
770
820
4
Typ
5.5
8
6
1
(5)
(4)
(4)
Max Unit
8.16
2.5
2
4
6
197/245
MHz
kHz
μA
μA
μs
%
%
%
%
%
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