ST7LITE49M STMicroelectronics, ST7LITE49M Datasheet - Page 144

• Manufacturer Part Number: ST7LITE49M
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7LITE49M

• 4 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
• 128 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
• A/d Converter: 10 input channels

Electrical characteristics
13.3.5
Table 66.
144/188
Symbol
f
RC
Internal RC oscillator
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 65.
1. See
2. Tested in production at 5.0 V only
3. Not tested in production
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)
Symbol
ACC
t
f
su(RC)
G(RC)
Parameter
frequency
f
RC
RC
Section 7.1.1: Internal RC oscillator
Internal RC oscillator
Accuracy of Internal
RC oscillator setup
RC oscillator with
RCCR=RCCR0
Internal RC oscillator characteristics (5.0 V calibration)
RC trimming
Parameter
granularity
frequency
time
1)
RCCR = FF (reset value),
T
A
T
RCCR = RCCR1
A
Doc ID 13562 Rev 3
= 25 °C, V
T
=25 °C,V
A
Conditions
= 25 °C, V
RCCR = FF (reset value),
T
T
T
T
A
V
V
V
A
A
A
RCCR=RCCR0
T
DD
DD
DD
= 25 °C, V
= 25 °C, V
= 25 °C, V
T
T
= 25 °C, V
A
A
A
DD
DD
= 0 to +125 °C,
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
=3.3 V
= 3.3 V
DD
and V
(1)
= 4.5 to 5.5 V
,
DD
DD
DD
DD
SS
= 5 V
= 5 V
= 5 V
= 5 V
(1)
(2)
(2)
(2)
,
pins as close as possible to the ST7
(2)
7.84
Min
7.84
Min
-2.5
-2
-3
-4
Typ
4.3
8
4
Typ
5.5
8
6
(3)
ST7LITE49M
Max
8.16
Max Unit
8.16
2.5
2
4
6
MHz
Unit
MHz
kHz
μs
%
%
%
%